Subject: alginates / Subject term: algae

1. Algae application in civil construction: A review with focus on the potential uses of the pelagic Sargassum spp. biomass

Author:: João Adriano Rossignolo; Afonso José Felicio Peres Duran; Cristiane Bueno; José Eduardo Martinelli Filho; Holmer Savastano Junior; Fernando Gustavo Tonin
Source:: Journal of environmental management 2022 v.303 pp. 114258
ISSN:: 0301-4797
Subject:: Kappaphycus alvarezii; Posidonia oceanica; Sargassum; algae; alginates; biomass; bioplastics; coasts; cosmetics; environmental management; grasses; industry; paper; pavements; raw materials; Caribbean; Gulf of Mexico; Sargasso Sea
Abstract:: ... Pelagic Sargassum, usually found at the Sargasso Sea and the Western portion of the North Atlantic and Gulf of Mexico, has been detected in many new locations through the tropical Atlantic. The huge biomass found from the African coast to the Caribbean was called the Great Atlantic Sargassum Belt and is responsible for the stranding of tons of algae on coastal regions. Despite the environmental, s ...
DOI:: 10.1016/j.jenvman.2021.114258
: https://doi.org/10.1016/j.jenvman.2021.114258

2. Assembly and synthesis of the extracellular matrix in brown algae

Author:: Lisa Mazéas; Rina Yonamine; Tristan Barbeyron; Bernard Henrissat; Elodie Drula; Nicolas Terrapon; Chikako Nagasato; Cécile Hervé
Source:: Seminars in cell & developmental biology 2022 pp. -
ISSN:: 1084-9521
Subject:: algae; alginates; biosynthesis; chemical composition; extracellular matrix; genes; glycosyltransferases; growth and development; models; sulfotransferases
Abstract:: ... In brown algae, the extracellular matrix (ECM) and its constitutive polymers play crucial roles in specialized functions, including algal growth and development. In this review we offer an integrative view of ECM construction in brown algae. We briefly report the chemical composition of its main constituents, and how these are interlinked in a structural model. We examine the ECM assembly at the t ...
DOI:: 10.1016/j.semcdb.2022.03.005
: https://doi.org/10.1016/j.semcdb.2022.03.005

3. Brown algal cell walls and development

Author:: Steven Beuder; Siobhan A. Braybrook
Source:: Seminars in cell & developmental biology 2022 pp. -
ISSN:: 1084-9521
Subject:: adhesion; algae; alginates; cell growth; cell walls; eukaryotic cells
Abstract:: ... Brown algae are complex multicellular eukaryotes whose cells possess a cell wall, which is an important structure that regulates cell size and shape. Alginate and fucose-containing sulfated polysaccharides (FCSPs) are two carbohydrate types that have major roles in influencing the mechanical properties of the cell wall (i.e. increasing or decreasing wall stiffness), which in turn regulate cell exp ...
DOI:: 10.1016/j.semcdb.2022.03.003
: https://doi.org/10.1016/j.semcdb.2022.03.003

4. Effects of hydrogen peroxide on Scenedesmus obliquus: Cell growth, antioxidant enzyme activity and intracellular protein fingerprinting

Author:: Haihan Zhang; Rongrong Zong; Huiyan He; Tinglin Huang
Source:: Chemosphere 2022 v.287 pp. 132185
ISSN:: 0045-6535
Subject:: Scenedesmus obliquus; algae; algicides; alginates; antioxidant enzymes; ascorbic acid; biochemical pathways; biosynthesis; catalase; cell growth; chlorophyll; enzyme activity; gene expression regulation; hydrogen peroxide; oxidative stress; photosynthesis; protein composition; protein-protein interactions; proteomics; superoxide dismutase
Abstract:: ... Hydrogen peroxide (H₂O₂) is an environmental-friendly algicide and it is widely used to control algal blooms in aquatic ecosystems. However, the response of algal cell metabolic characteristics and intracellular protein profile under H₂O₂ stress is still not well understood. In the present study, the green alga Scenedesmus obliquus was exposed to different concentrations of H₂O₂ (0, 2, 6, 8 and 10 ...
DOI:: 10.1016/j.chemosphere.2021.132185
: https://doi.org/10.1016/j.chemosphere.2021.132185

5. Seasonal patterns of growth, alginate content and block structure of the alien invader Sargassum muticum (Fucales, Ochrophyta) from the Atlantic coast of Morocco

Author:: Zahira Belattmania; Samir El Atouani; Fouad Bentiss; Charafeddine Jama; Annalisa Falace; Abdellatif Chaouti; Abdeltif Reani; Brahim Sabour
Source:: Botanica marina 2022 v.65 no.1 pp. 69-78
ISSN:: 1437-4323
Subject:: Sargassum muticum; algae; alginates; autumn; coasts; harvest date; sexual maturity; sexual reproduction; spring; summer; thallus; vegetative growth; winter; Morocco
Abstract:: ... In the present study, alginate yield and composition were investigated during the seasonal life cycle of the alien brown alga Sargassum muticum harvested from the Atlantic coast of Morocco. Alginate yield ranged from 11.14% in winter to 25.62% in spring/early summer, coinciding with maximum vegetative growth. Monthly monitoring of the alginate block structure showed that the highest mannuronate (M ...
DOI:: 10.1515/bot-2021-0050
: https://doi.org/10.1515/bot-2021-0050

6. Substrate degradation pathways, conserved functions and community composition of the hindgut microbiota in the herbivorous marine fish Kyphosus sydneyanus

Author:: Sam J.R. Stevenson; Kevin C. Lee; Kim M. Handley; Esther R. Angert; W. Lindsey White; Kendall D. Clements
Source:: Comparative biochemistry and physiology 2022 v.272 pp. 111283
ISSN:: 1095-6433
Subject:: Kyphosus; agar; algae; alginates; carrageenan; community structure; digestion; fucoidan; genes; herbivores; hindgut; intestinal microorganisms; mannitol; marine fish; metagenomics; mucosa; symbionts
Abstract:: ... Symbiotic gut microbiota in the herbivorous marine fish Kyphosus sydneyanus play an important role in digestion by converting refractory algal carbohydrate into short-chain fatty acids. Here we characterised community composition using both 16S rRNA gene amplicon sequencing and shotgun-metagenome sequencing. Sequencing was carried out on lumen and mucosa samples (radial sections) from three axial ...
DOI:: 10.1016/j.cbpa.2022.111283
: https://doi.org/10.1016/j.cbpa.2022.111283

7. Boosted Cr(VI) sorption coupled reduction from aqueous solution using quaternized algal/alginate@PEI beads

Author:: Yue Zhang; Yayuan Mo; Thierry Vincent; Catherine Faur; Eric Guibal
Source:: Chemosphere 2021 v.281 pp. 130844
ISSN:: 0045-6535
Subject:: algae; alginates; aqueous solutions; bioremediation; biosorbents; biosorption; chemical reduction; chromates; chromium; desorption; pH; polyethyleneimine; reaction kinetics; reaction mechanisms; sorption isotherms
Abstract:: ... APEI beads (algal/alginate-PEI) were quaternized for enhancing the sorption of Cr(VI) (Q-APEI). The readily reduction of Cr(VI) into Cr(III) in acidic solution and in the presence of organic material constitute an additional phenomenon to be taken into account for the removal of Cr(VI) by Q-APEI. The optimal pH value for both the sorption and reduction of Cr(VI) was close to 2. The sorption isothe ...
DOI:: 10.1016/j.chemosphere.2021.130844
: https://doi.org/10.1016/j.chemosphere.2021.130844

8. Genome-wide transcriptome profiling and characterization of mannuronan C5-epimerases in Saccharina japonica

Author:: Zhang Pengyan; Lu Chang; Shao Zhanru; Liu Fuli; Yao Jianting; Duan Delin
Source:: Algal research 2021 v.60 pp. 102491
ISSN:: 2211-9264
Subject:: Saccharina japonica; adults; algae; alginates; cell walls; genes; magnetism; research; transcriptome; transcriptomics
Abstract:: ... Alginate is a linear polysaccharide comprised of 1,4-linked-β-D-mannuronic acid (M) and α-L-guluronic acid (G). As the major cell wall polysaccharide in brown algae, alginate is widely used in the food, pharmaceutical, and chemical industries. Mannuronan C5-epimerases (MC5Es) catalyze the specific conversion of M to its C-5 epimer G, playing a key role in the modification of alginate. In this stud ...
DOI:: 10.1016/j.algal.2021.102491
: https://doi.org/10.1016/j.algal.2021.102491

9. Immobilized algae‐based treatment of herbicide‐contaminated groundwater

Author:: Sara Mollamohammada; Ashraf Aly Hassan; Mohamed Dahab
Source:: Water environment research 2021 v.93 no.2 pp. 263-273
ISSN:: 1061-4303
Subject:: Scenedesmus; algae; alginates; ambient temperature; atrazine; gels; groundwater; magnesium; nitrates; oxadiazon; phosphorus; research; triallate; zinc
Abstract:: ... Scenedesmus species, immobilized on alginate gel, was found effective in removing nitrate, atrazine, magnesium, phosphorus, zinc, oxadiazon, and triallate from groundwater in a continuous flow reactor. The laboratory‐scale experiments with synthetic groundwater, made of 8.8 mg/L NO₃‐N and 90 µg/L atrazine, were performed at a hydraulic retention time of 7 days and the temperatures of 20 and 35°C. ...
DOI:: 10.1002/wer.1405
: https://doi.org/10.1002/wer.1405

10. Potential Antiviral Properties of Industrially Important Marine Algal Polysaccharides and Their Significance in Fighting a Future Viral Pandemic

Author:: Renu Geetha Bai; Rando Tuvikene
Source:: Viruses 2021 v.13 no.9 pp. -
ISSN:: 1999-4915
Subject:: Severe acute respiratory syndrome coronavirus 2; agar; algae; alginates; anticoagulants; carrageenan; dietary supplements; drug development; fucoidan; mechanism of action; pandemic; therapeutics; viruses
Abstract:: ... Over the decades, the world has witnessed diverse virus associated pandemics. The significant inhibitory effects of marine sulfated polysaccharides against SARS-CoV-2 shows its therapeutic potential in future biomedical applications and drug development. Algal polysaccharides exhibited significant role in antimicrobial, antitumor, antioxidative, antiviral, anticoagulant, antihepatotoxic and immuno ...
DOI:: 10.3390/v13091817
: https://doi.org/10.3390/v13091817

11. Two Benthic Diatoms, Nanofrustulum shiloi and Striatella unipunctata, Encapsulated in Alginate Beads, Influence the Reproductive Efficiency of Paracentrotus lividus by Modulating the Gene Expression

Author:: Francesca Glaviano; Nadia Ruocco; Emanuele Somma; Giuseppe De Rosa; Virginia Campani; Pasquale Ametrano; Davide Caramiello; Maria Costantini; Valerio Zupo
Source:: Marine drugs 2021 v.19 no.4 pp. -
ISSN:: 1660-3397
Subject:: Paracentrotus lividus; Striatella; algae; alginates; embryogenesis; encapsulation; fractionation; gene expression; hydrogels; ingestion; metabolites; reproductive efficiency; stress response; viability
Abstract:: ... Physiological effects of algal metabolites is a key step for the isolation of interesting bioactive compounds. Invertebrate grazers may be fed on live diatoms or dried, pelletized, and added to compound feeds. Any method may reveal some shortcomings, due to the leaking of wound-activated compounds in the water prior to ingestion. For this reason, encapsulation may represent an important step of bi ...
DOI:: 10.3390/md19040230
: https://doi.org/10.3390/md19040230

12. Adsorption of Cu(II) Ions on Adsorbent Materials Obtained from Marine Red Algae Callithamnion corymbosum sp.

Author:: Alina Roxana Lucaci; Dumitru Bulgariu; Maria-Cristina Popescu; Laura Bulgariu
Source:: Water 2020 v.12 no.2 pp. -
ISSN:: 2073-4441
Subject:: Callithamnion; adsorbents; adsorption; algae; alginates; aqueous solutions; batch systems; biomass; biosorption; dosage; effluents; extraction; ions; iron; moieties; nanoparticles; pH; renewable resources; temperature; water
Abstract:: ... In recent years, studies on the more efficient use of natural materials in adsorption processes have increased significantly. Thus, obtaining new adsorbents from marine algae biomass with higher adsorptive performance will ensure a better use of these renewable resources. In this study, the adsorption of Cu(II) ions from aqueous solution was done using three types of adsorbent materials obtained f ...
DOI:: 10.3390/w12020372
: https://doi.org/10.3390/w12020372

13. Antioxidant and Antitumoral Properties of Aqueous Fractions from Frozen Sargassum muticum

Author:: Patricia Pérez-Larrán; Elena M. Balboa; María Dolores Torres; Herminia Domínguez
Source:: Waste and biomass valorization 2020 v.11 no.4 pp. 1261-1269
ISSN:: 1877-2641
Subject:: Sargassum muticum; algae; alginates; antioxidants; autohydrolysis; cytotoxicity; ethyl acetate; inhibitory concentration 50; liquid-liquid extraction; liquids; pressing; sap; thawing; viscoelasticity
Abstract:: ... A novel multistage water-based process was evaluated for the production of sap and other liquid fractions from frozen Sargassum muticum in an attempt to propose an integral and yearly-around utilization of this invasive alga. Three aqueous extracts including (i) the defrosting liquid phase, (ii) the sap liquid obtained by pressing and (iii) the autohydrolysis extract from the solid residue remaini ...
DOI:: 10.1007/s12649-018-0456-x
: https://doi.org/10.1007/s12649-018-0456-x

14. Batch and column study on tetracycline removal using green synthesized NiFe nanoparticles immobilized alginate beads

Author:: Ravikumar K.V.G.; Hemamalathi Kubendiran; Kavitha Ramesh; Sonia Rani; Tapas Kumar Mandal; Mrudula Pulimi; Chandrasekaran Natarajan; Amitava Mukherjee
Source:: Environmental technology & innovation 2020 v.17 pp. 100520
ISSN:: 2352-1864
Subject:: Punica granatum; adsorption; algae; alginates; aqueous solutions; bacteria; batch systems; biodegradability; cell viability; nanocomposites; nanoparticles; nickel; polyphenols; pomegranates; remediation; response surface methodology; tetracycline; toxicity
Abstract:: ... In the current work, NiFe nanocomposite was synthesized using polyphenol rich pomegranate (Punica granatum) peel extract and NiFe was immobilized into biocompatible and biodegradable alginate to form NiFe nanocomposite beads (GS-NiFe beads). This study is a best ecofriendly approach for the effective removal of tetracycline (TC) from aqueous solutions. The factors influencing the removal were opti ...
DOI:: 10.1016/j.eti.2019.100520
: https://doi.org/10.1016/j.eti.2019.100520

15. Cellulosic material obtained from Antarctic algae biomass

Author:: Oscar G. Paniz; Claudio M. P. Pereira; Bruna S. Pacheco; Silvana I. Wolke; Guilherme K. Maron; Andrés Mansilla; Pio Colepicolo; Marcelo O. Orlandi; Alice G. Osorio; Neftali L. V. Carreño
Source:: Cellulose 2020 v.27 no.1 pp. 113-126
ISSN:: 0969-0239
Subject:: Cystosphaera; Fourier transform infrared spectroscopy; X-ray diffraction; agar; algae; alginates; alkali treatment; biomass; bleaching; carrageenan; cellulose; cellulose nanofibers; crystal structure; drugs; freeze drying; raw materials; scanning electron microscopy; tissue engineering; Antarctic region
Abstract:: ... Algae biomass is a raw material widely used by many industrial sectors, such as food production, pharmaceuticals, cosmetics, fertilizers, biofuels, and many others. Its usage is mainly due to the phycocolloids content, such as alginates, carrageenans, agar, etc. One of the polysaccharides present in this biomass, and still little explored is cellulose, an important resource with several technologi ...
DOI:: 10.1007/s10570-019-02794-2
: https://doi.org/10.1007/s10570-019-02794-2

16. Detection and isolation of low molecular weight alginate- and laminaran-susceptible gut indigenous bacteria from ICR mice

Author:: Moemi Naito Takei; Takashi Kuda; Miyu Taniguchi; Saori Nakamura; Takahashi Hajime; Bon Kimura
Source:: Carbohydrate polymers 2020 v.238 pp. 116205
ISSN:: 0144-8617
Subject:: Bacteroides acidifaciens; Firmicutes; Phaeophyceae; algae; alginates; bacteria; cecum; diet; lactic acid; mice; microbiome; molecular weight; ribosomal DNA; sequence analysis; succinic acid; water solubility
Abstract:: ... Alginate and laminaran are the main water-soluble polysaccharides in edible brown algae such as arame Eisenia bicyclis. To determine the alginate- and/or laminaran-susceptible indigenous bacteria (SIB) in the gut, the caecal microbiomes of ICR mice fed a diet containing 2% low molecular weight (LMW ≒50 kDa) alginate or laminaran were analysed by 16S rRNA gene (V4) amplicon sequencing. At the phylu ...
DOI:: 10.1016/j.carbpol.2020.116205
: https://doi.org/10.1016/j.carbpol.2020.116205

17. Fucoidans of Moroccan Brown Seaweed as Elicitors of Natural Defenses in Date Palm Roots

Author:: Soukaina Bouissil; Zainab El Alaoui-Talibi; Guillaume Pierre; Halima Rchid; Philippe Michaud; Cédric Delattre; Cherkaoui El Modafar
Source:: Marine drugs 2020 v.18 no.12 pp. -
ISSN:: 1660-3397
Subject:: Bifurcaria bifurcata; Fucus spiralis; Phoenix dactylifera; algae; alginates; biological control; drugs; elicitors; fucose; galactose; gas chromatography-mass spectrometry; gel chromatography; glucose; infrared spectroscopy; lignin content; mannose; nuclear magnetic resonance spectroscopy; phenols; phenylalanine ammonia-lyase; rhamnose; roots; sulfates
Abstract:: ... Fucoidans from Moroccan brown seaweed Bifurcaria bifurcata and Fucus spiralis were tested for their elicitor activity after their purification and complete characterization. The fucoidans of B. bifurcata (BBF) and of F. spiralis (FSF) were extracted and purified then characterized by infrared spectroscopy, proton nuclear magnetic resonance spectroscopy and size exclusion chromatography. The result ...
DOI:: 10.3390/md18120596
: https://doi.org/10.3390/md18120596

18. Indole-3-acetic acid from Azosprillum brasilense promotes growth in green algae at the expense of energy storage products

Author:: Haixin Peng; Luz E. de-Bashan; Yoav Bashan; Brendan T. Higgins
Source:: Algal research 2020 v.47 pp. 101845
ISSN:: 2211-9264
Subject:: Auxenochlorella protothecoides; Azospirillum brasilense; Chlorella sorokiniana; algae; alginates; coculture; energy; energy resources; growth promotion; indole acetic acid; mass transfer; photobioreactors; plant growth-promoting rhizobacteria; secretion; starch; triacylglycerols
Abstract:: ... Plant growth-promoting bacteria, such as Azospirillum brasilense, have the potential to significantly increase algal growth rates through a variety of mechanisms including the production of indole-3-acetic acid, an auxin hormone. A. brasilense promotion of growth in Chlorella sorokiniana is well-established for co-cultures suspended in alginate bead structures, however, its impacts on other types ...
DOI:: 10.1016/j.algal.2020.101845
CHORUS:: 10.1016/j.algal.2020.101845
: https://doi.org/10.1016/j.algal.2020.101845

19. Induction of Natural Defenses in Tomato Seedlings by Using Alginate and Oligoalginates Derivatives Extracted from Moroccan Brown Algae

Author:: Meriem Aitouguinane; Soukaina Bouissil; Anouar Mouhoub; Halima Rchid; Imen Fendri; Slim Abdelkafi; Mohamed Didi Ould El-Hadj; Zakaria Boual; Pascal Dubessay; Christine Gardarin; Philippe Michaud; Zainab El Alaoui-Talibi; Cherkaoui El Modafar; Guillaume Pierre; Cédric Delattre
Source:: Marine drugs 2020 v.18 no.10 pp. -
ISSN:: 1660-3397
Subject:: Bifurcaria bifurcata; agriculture; algae; alginates; biofertilizers; biomass; coasts; cosmetics; drugs; elicitors; horticulture; injection; leaves; metabolism; monitoring; oligosaccharides; phenylalanine ammonia-lyase; plant pathogens; plant protection; polymers; polyphenols; seedlings; solutions; sustainable technology; therapeutics; tomatoes
Abstract:: ... Polysaccharides extracted from marine algae have attracted much attention due to their biotechnological applications, including therapeutics, cosmetics, and mainly in agriculture and horticulture as biostimulants, biofertilizers, and stimulators of the natural defenses of plants. This study aimed to evaluate the ability of alginate isolated from Bifurcaria bifurcata from the Moroccan coast and oli ...
DOI:: 10.3390/md18100521
: https://doi.org/10.3390/md18100521

20. Multilayered composite-coated ionically crosslinked food-grade hydrogel beads generated from algal alginate for controlled and sustained release of bioactive compounds

Author:: Wing-Fu Lai; Eric Wong; Wing-Tak Wong
Source:: RSC advances 2020 v.10 no.72 pp. 44522-44532
ISSN:: 2046-2069
Subject:: Escherichia coli; Staphylococcus aureus; algae; alginates; bacteria; bioactive compounds; biocompatibility; chronic toxicity; coatings; crosslinking; dietary supplements; drug formulations; fibroblasts; functional foods; gelation; hydrogels; lakes; strength (mechanics)
Abstract:: ... Hydrogels have gained interest as sustained-release matrices partly because of their high biocompatibility and ease of preparation. Their wide application has, however, been limited by their poor mechanical strength and their lack of tunability in the performance of bioactive agent delivery. By using the lake substratum as a gel property modifier, in combination with the use of the surface coating ...
DOI:: 10.1039/d0ra07827a
: https://doi.org/10.1039/d0ra07827a

21. Review on marine carbohydrate-based gold nanoparticles represented by alginate and chitosan for biomedical application

Author:: Xiangyan Chen; Xia Zhao; Guixiang Wang
Source:: Carbohydrate polymers 2020 v.244 pp. 116311
ISSN:: 0144-8617
Subject:: acetylation; agarose; algae; alginates; biocompatibility; biodegradability; cancer therapy; carboxylation; carrageenan; chitosan; drugs; fucoidan; image analysis; medicine; moieties; nanogold; neoplasms; optical properties
Abstract:: ... Gold nanoparticles (AuNPs) have been attracted considerable attention in cancer therapy, drug delivery and other applications due to their unique physical, chemical, and optical properties. Marine carbohydrates are important biological macromolecules that widely exist in marine algae and animals, such as alginate, carrageenan, porphyran, fucoidan, ulvan, agarose, and chitosan. Their excellent prop ...
DOI:: 10.1016/j.carbpol.2020.116311
: https://doi.org/10.1016/j.carbpol.2020.116311

22. Sorption of paralytic shellfish toxins (PSTs) in algal polysaccharide gels

Author:: Dave Eldon B. Olano; Lilibeth A. Salvador-Reyes; Marco Nemesio E. Montaño; Rhodora V. Azanza
Source:: Algal research 2020 v.45 pp. 101655
ISSN:: 2211-9264
Subject:: algae; alginates; carrageenan; endothermy; gels; heat production; mechanics; models; paralytic shellfish toxins; sorption; temperature
Abstract:: ... Sorption mechanics of the paralytic shellfish toxins (PSTs), saxitoxin (STX) and neo-saxitoxin (neo-STX), on algal polysaccharide gels was characterized using surface chemistry models. Refined (RC), semi-refined (SRC) carrageenan and alginate showed sorption of STX and neo-STX. The sorption of PSTs on RC, SRC and alginate was affected by contact time and in part, temperature. From surface chemistr ...
DOI:: 10.1016/j.algal.2019.101655
: https://doi.org/10.1016/j.algal.2019.101655

23. Synthesis of bioactive silver nanoparticles using alginate, fucoidan and laminaran from brown algae as a reducing and stabilizing agent

Author:: Y.A. Yugay; R.V. Usoltseva; V.E. Silant'ev; A.E. Egorova; A.A. Karabtsov; V.V. Kumeiko; S.P. Ermakova; V.P. Bulgakov; Y.N. Shkryl
Source:: Carbohydrate polymers 2020 v.245 pp. 116547
ISSN:: 0144-8617
Subject:: Fucus evanescens; Saccharina cichorioides; algae; alginates; antibacterial properties; catalytic activity; cytotoxicity; fucoidan; glioma; nanoparticles; nanosilver; neoplasm cells; rats; reducing agents; stabilizers
Abstract:: ... In this report, polysaccharides – alginate, fucoidan, laminaran – were isolated from marine algae Saccharina cichorioides and Fucus evanescens and their activity as a reducing and stabilizing agents in the biogenic synthesis of silver nanoparticles was evaluated. The cytotoxic and antibacterial properties of obtained nanoparticles were also assessed. It was found that all tested polysaccharides co ...
DOI:: 10.1016/j.carbpol.2020.116547
: https://doi.org/10.1016/j.carbpol.2020.116547

24. Use of algal biorefinery waste and waste office paper in the development of xerogels: A low cost and eco-friendly biosorbent for the effective removal of congo red and Fe (II) from aqueous solutions

Author:: Mustafa A. Fawzy; Mohamed Gomaa
Source:: Journal of environmental management 2020 v.262 pp. 110380
ISSN:: 0301-4797
Subject:: Cystoseira; Spirulina; adsorption; algae; alginates; aqueous solutions; biorefining; biosorbents; biosorption; cost effectiveness; dyes; electrostatic interactions; endothermy; heavy metals; hydrogen bonding; iron; pH; porosity; sorption isotherms; thermodynamics; waste paper; xerogels
Abstract:: ... The present study investigated the use of algae biorefinery waste and wastepaper in the preparation of cost-effective and eco-friendly xerogels for the removal of congo red (CR) and Fe²⁺. The xerogel properties such as density, swelling degree and porosity were modified by incorporating alginate extracted from the brown seaweed Cystoseira trinodis. The developed biosorbents exhibited a light and p ...
DOI:: 10.1016/j.jenvman.2020.110380
: https://doi.org/10.1016/j.jenvman.2020.110380

25. Acidic polysaccharides isolated from marine algae inhibit the early step of viral infection

Author:: Mikinori Ueno; Masato Nogawa; Rokeya Siddiqui; Koichi Watashi; Takaji Wakita; Nobuyuki Kato; Masanori Ikeda; Takasi Okimura; Shogo Isaka; Tatsuya Oda; Yasuo Ariumi
Source:: International journal of biological macromolecules 2019 v.124 pp. 282-290
ISSN:: 0141-8130
Subject:: HIV infections; Hepatitis B virus; Hepatitis C virus; Human immunodeficiency virus 1; Primate T-lymphotropic virus 1; Vesiculovirus; algae; alginates; dose response; human cell lines; uronic acids
Abstract:: ... We examined the effects of various acidic polysaccharides isolated from marine algae on the infection and replication of human immunodeficiency virus type-1 (HIV-1), hepatitis B virus (HBV), hepatitis C virus (HCV), and human T-cell leukemia virus type-1 (HTLV-1). It was found that sulfated fucan polysaccharides, ascophyllan, and two fucoidans derived from different sources significantly inhibited ...
DOI:: 10.1016/j.ijbiomac.2018.11.152
: https://doi.org/10.1016/j.ijbiomac.2018.11.152

26. Advances in the biorefinery of Sargassum muticum: Valorisation of the alginate fractions

Author:: N. Flórez-Fernández; H. Domínguez; M.D. Torres
Source:: Industrial crops and products 2019 v.138 pp. 111483
ISSN:: 0926-6690
Subject:: Sargassum muticum; algae; alginates; autohydrolysis; biodiversity; biorefining; data collection; depolymerization; fucose; models; nutrients; polymers; recreation; solvents; temperature; viscoelasticity
Abstract:: ... Sargassum muticum is an invasive brown seaweed that causes a negative impact on ecology, fishing and recreational activities, and was also associated with changes in biodiversity by competing for light, space and nutrients with autochthonous algae. Marine brown seaweeds contain different valuable components, such as alginate, fucose rich sulfated polysaccharides (known as fucoidans) and phlorotann ...
DOI:: 10.1016/j.indcrop.2019.111483
: https://doi.org/10.1016/j.indcrop.2019.111483

27. Algae in food: a general review

Author:: Sylwia Ścieszka; Elżbieta Klewicka
Source:: Critical reviews in food science and nutrition 2019 v.59 no.21 pp. 3538-3547
ISSN:: 1549-7852
Subject:: agar; algae; alginates; bioactive compounds; breads; carrageenan; cottage cheese; cream; deserts; dietary supplements; fish; fish products; flour; food industry; functional foods; gelation; hot dogs; lactic acid bacteria; metabolites; milk; nutrients; oils; pasta; processed cheeses; steaks; yogurt
Abstract:: ... Algae are common all over the Earth. Due to their rich chemical composition and content of bioactive substances they have been used in many fields of industry. Their gelling, thickening and stabilizing properties have led to the development of such products as agar, alginate and carrageenan. Moreover, algae are used in the food industry as food supplements and an addition to functional food. Algae ...
DOI:: 10.1080/10408398.2018.1496319
: https://doi.org/10.1080/10408398.2018.1496319

28. Algal polysaccharides: potential bioactive substances for cosmeceutical applications

Author:: Ilekuttige Priyan Shanura Fernando; Kil-Nam Kim; Daekyung Kim; You-Jin Jeon
Source:: Critical reviews in biotechnology 2019 v.39 no.1 pp. 99-113
ISSN:: 1549-7801
Subject:: agar; algae; alginates; anti-inflammatory activity; bioactive compounds; carrageenan; cosmetics; emulsifiers; functional properties; glucans; hydrocolloids; hydrogels; industry; ingredients; physicochemical properties; stabilizers; surgery; tissue engineering; value-added products; viscosity; youth
Abstract:: ... The cosmetics industry is one of the most profitable in the world today. This multi-billion-dollar industry has a profound sociological impact worldwide. Its influence is global, with most individuals being concerned with conserving their physical appearance, beauty, and youth. The consumers’ desire for novel, better, and safer products has stimulated the utilization of natural-product-based cosme ...
DOI:: 10.1080/07388551.2018.1503995
: https://doi.org/10.1080/07388551.2018.1503995

29. Biosynthesis and Function of Long Guluronic Acid-Blocks in Alginate Produced by Azotobacter vinelandii

Author:: Olav Andreas Aarstad; Annalucia Stanisci; Gerd Inger Sætrom; Anne Tøndervik; Håvard Sletta; Finn Lillelund Aachmann; Gudmund Skjåk-Bræk
Source:: Biomacromolecules 2019 v.20 no.4 pp. 1613-1622
ISSN:: 1526-4602
Subject:: Azotobacter vinelandii; Phaeophyceae; active sites; algae; alginates; bacteria; biosynthesis; calcium; epimerases and racemases; gel strength; gelation; gels; mechanism of action; modulus of elasticity; polymers; raw materials; strength (mechanics)
Abstract:: ... With the present accessibility of algal raw material, microbial alginates as a source for strong gelling material are evaluated as an alternative for advanced applications. Recently, we have shown that alginate from algal sources all contain a fraction of very long G-blocks (VLG), that is, consecutive sequences of guluronic acid (G) residues of more than 100 residues. By comparing the gelling prop ...
DOI:: 10.1021/acs.biomac.8b01796
: https://doi.org/10.1021/acs.biomac.8b01796

30. Ecofriendly extraction of bioactive fractions from Sargassum muticum

Author:: María P. Casas; Enma Conde; Herminia Domínguez; Andrés Moure
Source:: Process biochemistry 2019 v.79 pp. 166-173
ISSN:: 1359-5113
Subject:: Sargassum muticum; algae; alginates; antioxidant activity; ascorbic acid; cytotoxicity; enzymatic treatment; enzyme activity; enzymes; feedstocks; fibroblasts; humans; melanoma; mice; solubilization; ultrasonics; unsaturated fatty acids
Abstract:: ... An ecofriendly process based on an enzyme-assisted extraction coupled with ultrasound extraction was proposed to obtain soluble bioactive fractions from Sargassum muticum. Whole algae (Sm) and residual algae from alginate production (AESm) were employed as feedstock. Aqueous enzyme treatment with commercial complex enzyme formulations or with mixture of enzymes lead to maximum solubilization yield ...
DOI:: 10.1016/j.procbio.2018.12.021
: https://doi.org/10.1016/j.procbio.2018.12.021

31. Effect of alginate on the release of amide nitrogen for soilless cultivation applications

Author:: Yashu Fan; Jiachao Xu; Xin Gao; Xiaoting Fu; Xianqing Yang
Source:: Scientia horticulturae 2019 v.256 pp. 108545
ISSN:: 0304-4238
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; algae; alginates; aqueous solutions; crops; hydrogen bonding; hydrophobicity; liquid fertilizers; nitrogen; organic fertilizers; particle size; protein content; scanning electron microscopy; soilless culture; sugar content; ultrafiltration; urea; zeta potential
Abstract:: ... In order to prepare sustained-release organic liquid fertilizer, alginate and amide nitrogen urea were used as materials to study the release of alginate from urea and its application in soilless cultivation. The interactions between alginate and urea in aqueous solutions were investigated based on particle size, zeta-potential, scanning electron microscopy, X-ray diffraction (XRD), and Fourier tr ...
DOI:: 10.1016/j.scienta.2019.108545
: https://doi.org/10.1016/j.scienta.2019.108545

32. Fabrication Challenges and trends in biomedical applications of alginate electrospun nanofibers

Author:: Mahdokht Akbari Taemeh; Ayoub Shiravandi; Maryam Asadi Korayem; Hamed Daemi
Source:: Carbohydrate polymers 2019 pp. -
ISSN:: 0144-8617
Subject:: algae; alginates; aqueous solutions; biocompatibility; biocompatible materials; biodegradability; drug delivery systems; electrolytes; extracellular matrix; hydrogen bonding; industrial applications; medicine; molecular weight; nanofibers; solubility; solvents; tissue engineering; viscosity
Abstract:: ... Alginate as a naturally-derived biomaterial with marine algae sources has gained much attention in both laboratorial and industrial applications due to its structural and chemical resemblance to extracellular matrix (ECM) as well as desirable properties like biocompatibility, biodegradability, processability and low cost. Electrospun alginate nanofibrous scaffolds have found wide applications in b ...
DOI:: 10.1016/j.carbpol.2019.115419
: https://doi.org/10.1016/j.carbpol.2019.115419

33. Hydrogel based dessert of low calorie content

Author:: N.V. Nepovinnykh; O.N. Kliukina; N.M. Ptichkina; A. Bostan
Source:: Food hydrocolloids 2019 v.86 pp. 184-192
ISSN:: 0268-005X
Subject:: algae; alginates; animal proteins; beet sugar; cream; desserts; energy content; ethics; finishing; fructose; gelatin; guar gum; hydrocolloids; hydrogels; konjac mannan; milk; odors; particle size; pectins; shelf life; soy protein isolate; sucrose; taste; texture; water content; whey protein isolate; xanthan gum
Abstract:: ... The aim of this investigation is to address the technological challenge of producing gelled desserts that are (i) less fattening than their traditional counterparts, by replacing fat (milk cream) by whey protein isolate and/or soy protein isolate and replacing sucrose (beet sugar) by a lower concentration of fructose, and that (ii) overcome religious and ethical constraints on acceptability by rep ...
DOI:: 10.1016/j.foodhyd.2018.03.036
: https://doi.org/10.1016/j.foodhyd.2018.03.036

34. Improved Palmaria palmata hatchery methods for tetraspore release, even settlement and high seedling survival using strong water agitation and macerated propagules

Author:: Peter S. Schmedes; Mette Møller Nielsen; Jens Kjerulf Petersen
Source:: Algal research 2019 v.40 pp. 101494
ISSN:: 2211-9264
Subject:: Palmaria palmata; agitation; air; algae; alginates; biomass; germination; hatcheries; maceration; seedlings; sowing; spore dispersal; spores; tanks
Abstract:: ... Cultivated Palmaria palmata is highly valued as a nutritious source of biomass. Yet, current hatchery techniques using tetraspores show low spore-to-seedling efficiency, normally imposing a high requirement of sori for seeding in large-scale cultivation, and pointing to a need for developing current hatchery techniques. This study shows new hatchery strategies to improve tetraspore release, effici ...
DOI:: 10.1016/j.algal.2019.101494
: https://doi.org/10.1016/j.algal.2019.101494

35. Optimization of extrusion-assisted extraction parameters and characterization of alginate from brown algae (Sargassum cristaefolium)

Author:: Sugiono Sugiono; Masruri Masruri; Teti Estiasih; Simon Bambang Widjanarko
Source:: Journal of food science and technology 2019 v.56 no.8 pp. 3687-3696
ISSN:: 0022-1155
Subject:: Sargassum; algae; alginates; aqueous solutions; experimental design; molecular weight; pH; viscosity
Abstract:: ... The aim of this research is to investigate the effects of brown algae to solution ratio, feed rate, and pH on the multiple responses of Sargassum cristaefolium alginate extracted using twin screw extruder. Box–Behnken design was used to find out the optimum extrusion-assisted extraction parameters based on the responses of residence time distribution (RTD), yield, intrinsic viscosity, and molecula ...
DOI:: 10.1007/s13197-019-03829-z
: https://doi.org/10.1007/s13197-019-03829-z

36. Phycoremediation of lithium ions from aqueous solutions using free and immobilized freshwater green alga Oocystis solitaria: mathematical modeling for bioprocess optimization

Author:: Noura El-Ahmady El-Naggar; Ragaa A. Hamouda; Nashwa H. Rabei; Ibrahim E. Mousa; Marwa Salah Abdel-Hamid
Source:: Environmental science and pollution research international 2019 v.26 no.19 pp. 19335-19351
ISSN:: 0944-1344
Subject:: Fourier transform infrared spectroscopy; Oocystis; absorption; adsorbents; agitation; algae; alginates; aqueous solutions; biomass; bioprocessing; biosorption; experimental design; freshwater; ions; irrigation water; lithium; mathematical models; pH; pollutants; scanning electron microscopy; screening; temperature; wastewater; water supply
Abstract:: ... Lithium is registered as a serious pollutant that causes environmental damage to an irrigation water supply. Freshwater green alga (Oocystis solitaria) was studied for its potential to remove lithium ions from aqueous solutions. The Plackett–Burman design was applied for initial screening of six factors for their significances for the removal of lithium from aqueous solutions using Oocystis solita ...
DOI:: 10.1007/s11356-019-05214-x
: https://doi.org/10.1007/s11356-019-05214-x

37. Sargassum muticum extract based on alginate biopolymer as a new efficient biological corrosion inhibitor for carbon steel in hydrochloric acid pickling environment: Gravimetric, electrochemical and surface studies

Author:: I. Nadi; Z. Belattmania; B. Sabour; A. Reani; A. Sahibed-dine; C. Jama; F. Bentiss
Source:: International journal of biological macromolecules 2019 v.141 pp. 137-149
ISSN:: 0141-8130
Subject:: Sargassum muticum; X-ray photoelectron spectroscopy; adsorption; algae; alginates; biopolymers; capacitance; carbon; coasts; corrosion; electrochemistry; electrolytes; plant extracts; sorption isotherms; steel; Morocco
Abstract:: ... The inhibition effect of the invasive brown seaweed Sargassum muticum extract (ESM), harvested from the Atlantic coast of Morocco, against the corrosion of carbon steel (CS) in 1 M HCl medium was studied for the first time using gravimetric, electrochemical and surface techniques. The methanolic crude extract of Sargassum muticum (ESM) is rich in alginate biopolymer. The evaluation corrosion tests ...
DOI:: 10.1016/j.ijbiomac.2019.08.253
: https://doi.org/10.1016/j.ijbiomac.2019.08.253

38. Zn adsorption onto Irish Fucus vesiculosus: Biosorbent uptake capacity and atomistic mechanism insights

Author:: Loredana Brinza; Kalotina Geraki; Iuliana G. Breaban; Mariana Neamtu
Source:: Journal of hazardous materials 2019 v.365 pp. 252-260
ISSN:: 0304-3894
Subject:: Fucus vesiculosus; X-ray absorption spectroscopy; adsorption; algae; alginates; biosorbents; cadmium; cobalt; copper; kinetics; pH; zinc; Irish Sea
Abstract:: ... This study presents a multifaceted approach of Zn adsorption onto dry Fucus vesiculosus originating from the Irish Sea. Metal chemistry as well as algae surface charge properties were characterized before adsorption. Zn adsorption tests were run as function of: pH, algae concentration and metal source. A comparison with Co, Cd, and Cu adsorption – in mono-ion solutions was also performed. Adsorpti ...
DOI:: 10.1016/j.jhazmat.2018.11.009
: https://doi.org/10.1016/j.jhazmat.2018.11.009

39. Alginate/albumin in incubation solution mediates the adhesion and biofilm formation of typical marine bacteria and algae

Author:: Xiaoyan He; Yi Liu; Xiuqin Bai; Chengqing Yuan; Hua Li
Source:: Biochemical engineering journal 2018 v.139 pp. 25-32
ISSN:: 1369-703X
Subject:: Bacillus (bacteria); Chlorella pyrenoidosa; Phaeodactylum tricornutum; adhesion; adsorption; albumins; algae; alginates; aquatic bacteria; atomic force microscopy; biofilm; biofouling; biomass; marine environment; roughness; seawater; silicon; surface roughness; wafers; wettability
Abstract:: ... Adhesion of microorganisms in the marine environment is one of the initial events responsible for the occurrence of biofouling. A variety of factors play roles in regulating adhesion behaviors and subsequent biofilm formation. Here the study was focused on the influence of the typical marine polysaccharide alginate and the protein albumin on the attachment and colonization of Bacillus sp., Chlorel ...
DOI:: 10.1016/j.bej.2018.08.006
: https://doi.org/10.1016/j.bej.2018.08.006

40. Batch and Fixed Bed Biosorption of Copper by Acidified Algae Waste Biomass

Author:: Geovani Rocha de Freitas; Melissa Gurgel Adeodato Vieira; Meuris Gurgel Carlos da Silva
Source:: Industrial & engineering chemistry process design and development 2018 v.57 no.34 pp. 11767-11777
ISSN:: 1520-5045
Subject:: algae; alginates; batch systems; biomass; biosorbents; biosorption; copper; desorption; endothermy; enthalpy; entropy; models; nitric acid; process design; wastes
Abstract:: ... The aim of this work is to investigate the biosorption of Cu(II) by an acidified waste product from the alginate extraction of algae in batch system and fixed bed columns. The results showed that the maximum copper biosorption capacity verified for the acidified biosorbent at 313 K was 3.580 mmol g–¹ and equilibrium isotherms were best described by the Dubinin–Radushkevich model. Thermodynamic ana ...
DOI:: 10.1021/acs.iecr.8b02541
: https://doi.org/10.1021/acs.iecr.8b02541

41. Biochemical properties and culture optimization of Leathesia marina (Phaeophyceae)

Author:: Ailen M. Poza; Carolina Fernández; M. Cecilia Gauna; Elisa R. Parodi
Source:: Algal research 2018 v.33 pp. 379-388
ISSN:: 2211-9264
Subject:: Leathesia; algae; alginates; antioxidant activity; cytotoxicity; environmental factors; gametogenesis; gametophytes; nutrient content; organic matter; pigments; polyphenols; protein content; seawater; spores; sporophytes; storage time; temperature; zygote
Abstract:: ... In recent years, interest in the chemical composition of algae, and the art of farming them, has grown due to their nutritional and health benefits. Species of Leathesia collected from nature have pharmaceutical properties, such as antitumor, antiviral, antioxidant and cytotoxic activity. Accordingly, their culture under controlled conditions is fundamental for the sustainable maintenance of natur ...
DOI:: 10.1016/j.algal.2018.06.015
: https://doi.org/10.1016/j.algal.2018.06.015

42. Comparison study of bioactive substances and nutritional components of brown algae Sargassum fusiforme strains with different vesicle shapes

Author:: Yajing Li; Xiaoting Fu; Delin Duan; Jiachao Xu; Xin Gao
Source:: Journal of applied phycology 2018 v.30 no.6 pp. 3271-3283
ISSN:: 0921-8971
Subject:: Sargassum fusiforme; algae; alginates; alpha-linolenic acid; arachidonic acid; bioactive compounds; fucoidan; harvest date; minerals; molecular weight; nutrient content; nutrients; viscosity
Abstract:: ... In this study, variations in the biochemical composition of two Sargassum fusiforme strains (SF-1 and SF-2) with different vesicle shapes collected during harvest period were analyzed. Compared with several other algae, S. fusiforme (commonly known as Hijiki) can be recommended as a nutritious food for its high levels of minerals, polyunsaturated fatty acids, phlorotannins, fucoidan, and alginate. ...
DOI:: 10.1007/s10811-018-1543-x
: https://doi.org/10.1007/s10811-018-1543-x

43. Enforced fungal-algal symbioses in alginate spheres

Author:: Lucia Muggia; Sigrun Kraker; Theodora Gößler; Martin Grube
Source:: FEMS microbiology letters 2018 v.365 no.14 pp. -
ISSN:: 1574-6968
Subject:: algae; alginates; coculture; fungi; habitats; hyphae; lichens; symbionts; symbiosis; thallus
Abstract:: ... The thallus structure of the lichen symbiosis provides a fungal shelter for the growth of algal partners. The long-living thallus also provides a habitat for other fungi, but experimental studies, which could inform us about the details of their interactions have hardly been conducted. We present a new approach by embedding axenically cultured strains of fungi together with algae in alginate spher ...
DOI:: 10.1093/femsle/fny115
: https://doi.org/10.1093/femsle/fny115

44. Enhancement of dietary effect of Nannochloropsis sp. on juvenile Ruditapes philippinarum clams by alginate hydrolysates

Author:: Yasuhiro Yamasaki; Keita Ishii; Shigeru Taga; Masanobu Kishioka
Source:: Aquaculture reports 2018 v.9 pp. 31-36
ISSN:: 2352-5134
Subject:: Bacillariophyceae; Chaetoceros; Nannochloropsis; Ruditapes philippinarum; algae; alginates; clams; diet; hydrolysates; juveniles; mollusc culture; rearing; tanks; water temperature
Abstract:: ... The eustigmatophyte Nannochloropsis sp. can be produced on a large scale at low cost. However, its dietary usefulness for juvenile bivalves is less than that of other algae. Recently, we reported that growth of juveniles of the clam Ruditapes philippinarum was dramatically promoted by supplementing a diet of the diatom Chaetoceros neogracile with alginate hydrolysates (AHs) at the concentration of ...
DOI:: 10.1016/j.aqrep.2017.11.006
: https://doi.org/10.1016/j.aqrep.2017.11.006

45. Functional genomics analysis reveals the biosynthesis pathways of important cellular components (alginate and fucoidan) of Saccharina

Author:: Shan Chi; Tao Liu; Xumin Wang; Ren Wang; Shanshan Wang; Guoliang Wang; Guangle Shan; Cui Liu
Source:: Current genetics 2018 v.64 no.1 pp. 259-273
ISSN:: 0172-8083
Subject:: Saccharina; algae; alginates; bacteria; biosynthesis; environmental factors; fucoidan; gene duplication; gene expression regulation; gene transfer; genes; genomics; horizontal gene transfer; mannose-6-phosphate isomerase; phylogeny; transcription (genetics); transferases
Abstract:: ... Although alginate and fucoidan are unique cellular components and have important biological significance in brown algae, and many possible involved genes are present in brown algal genomes, their functions and regulatory mechanisms have not been fully revealed. Both polysaccharides may play important roles in the evolution of multicellular brown algae, but specific and in-depth studies are still l ...
DOI:: 10.1007/s00294-017-0733-4
PubMed:: 28825126
PubMed Central:: PMC5778160
: https://doi.org/10.1007/s00294-017-0733-4

46. Identification and characterization of the fucoidanase gene from Luteolibacter algae H18

Author:: Tatsuhiko Nagao; Yoshihito Arai; Mika Yamaoka; Fumika Komatsu; Hisashi Yagi; Hirokazu Suzuki; Takashi Ohshiro
Source:: Journal of bioscience and bioengineering 2018 v.126 no.5 pp. 567-572
ISSN:: 1389-1723
Subject:: Cladosiphon; Escherichia coli; algae; alginates; amino acids; carrageenan; chondroitin sulfate; fucoidan; genes; health foods; hyaluronic acid; ingredients; molecular weight; nucleotide sequences
Abstract:: ... Fucoidan is a hetero-sulfated polysaccharide found in brown algae and has received much attention as an ingredient in functional and health foods. The marine bacterial strain Luteolibacter algae H18 degrades fucoidan from Cladosiphon okamuranus. We purified the fucoidanase from a cell-free extract of L. algae H18, used it to decrease the molecular weight of deacetylated-fucoidan, determined the N- ...
DOI:: 10.1016/j.jbiosc.2018.05.016
: https://doi.org/10.1016/j.jbiosc.2018.05.016

47. Monthly variation in the chemical composition and biological activity of Sargassum horridum

Author:: Dania Andrea Di Filippo-Herrera; Gustavo Hernández-Carmona; Mauricio Muñoz-Ochoa; Dora Luz Arvizu-Higuera; Yoloxochitl Elizabeth Rodríguez-Montesinos
Source:: Botanica marina 2018 v.61 no.1 pp. 91-102
ISSN:: 1437-4323
Subject:: 2,2-diphenyl-1-picrylhydrazyl; Sargassum; Staphylococcus aureus; Vibrio parahaemolyticus; algae; alginates; antibacterial properties; antibiotics; anticoagulant activity; anticoagulants; antioxidant activity; crude fiber; energy; free radical scavengers; fucoidan; harvesting; lipids; prothrombin; thromboplastin
Abstract:: ... The proximate chemical composition of Sargassum horridum was determined monthly, including extract yields of alginate, crude fucoidan, and ethanolic extract. In addition, the biological activity (antioxidant and antibacterial) of the ethanolic extract and anticoagulant activity of the fucoidan were examined. Significant monthly variation was found in the chemical composition (moisture, protein, as ...
DOI:: 10.1515/bot-2017-0031
: https://doi.org/10.1515/bot-2017-0031

48. Optimization and Characterization of Cladophora sp. Alga Immobilized in Alginate Beads and Silica Gel for the Biosorption of Mercury from Aqueous Solutions

Author:: Joy G. Mokone; Hlanganani Tutu; Luke Chimuka; Ewa M. Cukrowska
Source:: Water, air, and soil pollution 2018 v.229 no.7 pp. 215
ISSN:: 0049-6979
Subject:: Cladophora; agitation; algae; alginates; aqueous solutions; biosorbents; biosorption; ion exchange; kinetics; mercury; pH; silica gel; sorption isotherms; temperature; wastewater; wastewater treatment
Abstract:: ... Biosorption has gained much ground as a wastewater treatment technology. In this work, modified algal biosorbents were synthesized by immobilizing Cladophora sp. alga in alginate beads and silica gel. The resultant biosorbents were evaluated for the retrieval of mercury from aqueous solutions using batch scale experiments. Optimal metal removal was achieved at pH 5, agitation time 60 min, initial ...
DOI:: 10.1007/s11270-018-3859-1
: https://doi.org/10.1007/s11270-018-3859-1

49. PEDOT doped with algal, mammalian and synthetic dopants: polymer properties, protein and cell interactions, and influence of electrical stimulation on neuronal cell differentiation

Author:: P. J. Molino; L. Garcia; E. M. Stewart; M. Lamaze; B. Zhang; A. R. Harris; P. Winberg; G. G. Wallace
Source:: Biomaterials science 2018 v.6 no.5 pp. 1250-1261
ISSN:: 2047-4849
Subject:: adsorption; algae; alginates; anions; biocompatible materials; cell differentiation; chondroitin sulfate; electrical treatment; electrochemistry; fibronectins; mammals; modulus of elasticity; neurites; polymers; quartz; sulfates; surface roughness
Abstract:: ... Poly(3,4-ethylenedioxythiophene) (PEDOT) films were electrochemically polymerised with several synthetic (dodecylbenzosulfonic acid (DBSA)) and biological (dextran sulphate (DS), chondroitin sulphate (CS), alginic acid (ALG) and ulvan (ULV)) dopant anions, and their physical, mechanical and electrochemical properties characterised. PEDOT films incorporating the biological dopants ALG and ULV produ ...
DOI:: 10.1039/c7bm01156c
: https://doi.org/10.1039/c7bm01156c

50. Participation of copper ions in formation of alginate conditioning layer: Evolved structure and regulated microbial adhesion

Author:: Xiaoyan He; Leila Abdoli; Hua Li
Source:: Colloids and surfaces 2018 v.162 pp. 220-227
ISSN:: 0927-7765
Subject:: Bacillus (bacteria); Chlorella pyrenoidosa; Phaeodactylum tricornutum; adhesion; adsorption; algae; alginates; aquatic bacteria; atomic force microscopy; colloids; copper; electron microscopy; fouling; ions; silicon; toxicity
Abstract:: ... Antifouling function of copper-based layers is usually gained through the release of cuprous or copper ions to damage most fouling species. In this research the intervening mechanisms of copper ions in formation of simplified conditioning layer comprising marine polysaccharide alginate and subsequent adhesion of typical marine bacteria and algae were studied. Fast interaction of Cu²⁺ with alginate ...
DOI:: 10.1016/j.colsurfb.2017.11.062
: https://doi.org/10.1016/j.colsurfb.2017.11.062

51. Preparation of 4-Deoxy-L-erythro-5-hexoseulose Uronic Acid (DEH) and Guluronic Acid Rich Alginate Using a Unique exo-Alginate Lyase from Thalassotalea crassostreae

Author:: Damao Wang; Olav A. Aarstad; Jing Li; Lauren S. McKee; Gerd Inger Sætrom; Anisha Vyas; Vaibhav Srivastava; Finn L. Aachmann; Vincent Bulone; Yves SY Hsieh
Source:: Journal of agricultural and food chemistry 2018 v.66 no.6 pp. 1435-1443
ISSN:: 1520-5118
Subject:: active sites; algae; alginates; aquatic bacteria; biofuels; catalytic activity; crops; enzymes; mechanism of action; molecular weight; sustainable technology; uronic acids
Abstract:: ... Marine multicellular algae are considered promising crops for the production of sustainable biofuels and commodity chemicals. However, their commercial exploitation is currently limited by a lack of appropriate and efficient enzymes for converting alginate into metabolizable building blocks, such as 4-deoxy-L-erythro-5-hexoseulose uronic acid (DEH). Herein, we report the discovery and characteriza ...
DOI:: 10.1021/acs.jafc.7b05751
: https://doi.org/10.1021/acs.jafc.7b05751

52. Scalable long-term extraction of photosynthetic electrons by simple sandwiching of nanoelectrode array with densely-packed algal cell film

Author:: Yong Jae Kim; JaeHyoung Yun; Seon Il Kim; Hyeonaug Hong; Jun-Hee Park; Jae-Chul Pyun; WonHyoung Ryu
Source:: Biosensors & bioelectronics 2018 v.117 pp. 15-22
ISSN:: 0956-5663
Subject:: algae; alginates; biosensors; electrons; hydrogels; mixing; oxidation; photosynthesis; pressing; thylakoids
Abstract:: ... Direct extraction of photosynthetic electrons from the whole photosynthetic cells such as plant cells or algal cells can be highly efficient and sustainable compared to other approaches based on isolated photosynthetic apparatus such as photosystems I, II, and thylakoid membranes. However, insertion of nanoelectrodes (NEs) into individual cells are time-consuming and unsuitable for scale-up proces ...
DOI:: 10.1016/j.bios.2018.05.033
: https://doi.org/10.1016/j.bios.2018.05.033

53. The determination of the leaching ratios of microdiets containing algae used as direct and indirect in aquaculture

Author:: Asuman Mihalioğlu Yenmiş; Mehmet Naz
Source:: Journal of applied animal research 2018 v.46 no.1 pp. 1496-1504
ISSN:: 0974-1844
Subject:: Chlorella; Sargassum; Spirulina; algae; alginates; aquaculture; leaching; lipids; molecular weight; protein content; protein value
Abstract:: ... The purpose of the study was to determine the biochemical compositions and the leaching ratios according to different times (1 minute, 3 minutes, 5 minutes and 15 minutes) of microdiets containing Spirulina sp., Chlorella sp. and Sargassum sp. in different sizes (100–200 μm, 200–300 μm, 300–500 μm and 500–800 μm). The lowest and highest ash, lipid and protein values of algae tested were 3.29 ± 0.0 ...
DOI:: 10.1080/09712119.2018.1546584
: https://doi.org/10.1080/09712119.2018.1546584

54. Bimonthly variation in the chemical composition and biological activity of the brown seaweed Eisenia arborea (Laminariales: Ochrophyta) from Bahía Magdalena, Baja California Sur, Mexico

Author:: Cristina Landa-Cansigno; Gustavo Hernández-Carmona; Dora Luz Arvizu-Higuera; Mauricio Muñoz-Ochoa; Claudia Judith Hernández-Guerrero
Source:: Journal of applied phycology 2017 v.29 no.5 pp. 2605-2615
ISSN:: 0921-8971
Subject:: Eisenia arborea; algae; alginates; anticoagulant activity; anticoagulants; antioxidant activity; blades; chemical composition; fucoidan; harvesting; median effective concentration; Mexico
Abstract:: ... The aim of this study was to describe the bimonthly variation in the proximate chemical composition, alginate, and fucoidan yield and ethanolic extract content, including the anticoagulant and antioxidant activity of the extracts and quality tests of alginates, from blades and stipes of Eisenia arborea collected in Bahía Magdalena, Baja California Sur, Mexico. Significant differences were found in ...
DOI:: 10.1007/s10811-017-1195-2
: https://doi.org/10.1007/s10811-017-1195-2

55. Chemical synthesis of guanosine diphosphate mannuronic acid (GDP-ManA) and its C-4-O-methyl and C-4-deoxy congeners

Author:: Qingju Zhang; P. Lynne Howell; Herman S. Overkleeft; Dmitri V. Filippov; Gijsbert A. van der Marel; Jeroen D.C. Codée
Source:: Carbohydrate research 2017 pp. -
ISSN:: 0008-6215
Subject:: Pseudomonas aeruginosa; algae; alginates; bacteria; biosynthesis; guanosine diphosphate; phosphorylation; polymerization; stoppers; sugars; synthesis
Abstract:: ... Described is the first synthesis of guanosine diphosphate mannuronic acid (GDP-ManA), the sugar donor used by algae and bacteria for the production of alginate, an anionic polysaccharide composed of β-d-mannuronic acid (ManA) and α-l-guluronic acid (GulA). Understanding the biosynthesis of these polyanionic polysaccharides on the molecular level, opens up avenues to use and modulate the biosynthes ...
DOI:: 10.1016/j.carres.2017.08.005
: https://doi.org/10.1016/j.carres.2017.08.005

56. Cyclic fractionation process for Saccharina latissima using aqueous chelator and ion exchange resin

Author:: Martin Sterner; Mauricio Sodré Ribeiro; Fredrik Gröndahl; Ulrica Edlund
Source:: Journal of applied phycology 2017 v.29 no.6 pp. 3175-3189
ISSN:: 0921-8971
Subject:: Saccharina latissima; acid deposition; algae; alginates; biomass; cations; chelating agents; energy; fractionation; greenhouse gas emissions; ion exchange resins; life cycle assessment; molecular weight; sodium citrate; solubility; uronic acids; water utilization
Abstract:: ... A new approach to process Saccharina latissima algal biomass was developed using sodium citrate and a polyvalent cation-specific resin to sequentially extract the alginate into several usable fractions. The fractionation was performed in a cyclic manner, utilizing a stepwise removal of the native polyvalent ions present in the algae to isolate fractions of alginate with different solubility in the ...
DOI:: 10.1007/s10811-017-1176-5
PubMed:: 29213186
PubMed Central:: PMC5705741
: https://doi.org/10.1007/s10811-017-1176-5

57. Feasibility of posthydrolysis processing of hydrothermal extracts from Sargassum muticum

Author:: Noelia Flórez-Fernández; María Jesús González-Muñoz; Herminia Domínguez
Source:: Algal research 2017 v.27 pp. 73-81
ISSN:: 2211-9264
Subject:: Sargassum muticum; algae; alginates; chemical precipitation; colorectal neoplasms; cytotoxicity; depolymerization; fucoidan; hot water treatment; neoplasm cells; sulfates; ultrasonics
Abstract:: ... The posthydrolysis of the crude fucoidan extracted during hydrothermal treatment of Sargassum muticum was carried out with mineral acid or without added acid and aided by microwave or by ultrasound processing during short periods. The liquors produced under non-isothermal treatments at 150 and 170°C were subjected to alginate precipitation and the soluble crude fucoidan to posthydrolysis. Acid pos ...
DOI:: 10.1016/j.algal.2017.08.002
: https://doi.org/10.1016/j.algal.2017.08.002

58. Marine polysaccharides: therapeutic efficacy and biomedical applications

Author:: Young-Eun Lee; Hyeongmin Kim; Changwon Seo; Taejun Park; Kyung Bin Lee; Seung-Yup Yoo; Seong-Chul Hong; Jeong Tae Kim; Jaehwi Lee
Source:: Archives of pharmacal research 2017 v.40 no.9 pp. 1006-1020
ISSN:: 0253-6269
Subject:: algae; alginates; animals; bioactive properties; biocompatibility; biodegradability; carrageenan; chitosan; clinical trials; coatings; drug delivery systems; electric field; fucoidan; inflammation; laboratory experimentation; neoplasms; pH; plants (botany); temperature; tissue engineering
Abstract:: ... The ocean contains numerous marine organisms, including algae, animals, and plants, from which diverse marine polysaccharides with useful physicochemical and biological properties can be extracted. In particular, fucoidan, carrageenan, alginate, and chitosan have been extensively investigated in pharmaceutical and biomedical fields owing to their desirable characteristics, such as biocompatibility ...
DOI:: 10.1007/s12272-017-0958-2
PubMed:: 28918561
PubMed Central:: PMC7090684
: https://doi.org/10.1007/s12272-017-0958-2

59. Natural resource landscapes of a marine bacterium reveal distinct fitness‐determining genes across the genome

Author:: Alison F. Takemura; Christopher H. Corzett; Fatima Hussain; Philip Arevalo; Manoshi Datta; Xiaoqian Yu; Frederique Le Roux; Martin F. Polz
Source:: Environmental microbiology 2017 v.19 no.6 pp. 2422-2433
ISSN:: 1462-2912
Subject:: Copepoda; Fucus vesiculosus; Vibrio; algae; alginates; aquatic bacteria; biochemical pathways; cell walls; genes; glucose; landscapes; microhabitats; mutants; mutation; saprophytes
Abstract:: ... Heterotrophic bacteria exploit diverse microhabitats in the ocean, from particles to transient gradients. Yet the degree to which genes and pathways can contribute to an organism's fitness on such complex and variable natural resource landscapes remains poorly understood. Here, we determine the gene‐by‐gene fitness of a generalist saprophytic marine bacterium (Vibrio sp. F13 9CS106) on complex res ...
DOI:: 10.1111/1462-2920.13765
: https://doi.org/10.1111/1462-2920.13765

60. Praseodymium sorption on Laminaria digitata algal beads and foams

Author:: Shengye Wang; Mohammed F. Hamza; Thierry Vincent; Catherine Faur; Eric Guibal
Source:: Journal of colloid and interface science 2017 v.504 pp. 780-789
ISSN:: 0021-9797
Subject:: Laminaria digitata; algae; alginates; biomass; calcium; calcium chloride; desorption; equations; foams; gelation; ion exchange; ions; pH; praseodymium; protons; sorbents; sorption isotherms
Abstract:: ... Algal (Laminaria digitata) beads and algal foams have been prepared by a new synthesis mode and the sorbents were tested for praseodymium sorption in batch and fixed-bed like systems (recirculation or one-pass modes), respectively. Metal binding occurs through ion-exchange with Ca(II) ions used for ionotropic gelation of alginate contained in the algal biomass and eventually with protons. Sorption ...
DOI:: 10.1016/j.jcis.2017.06.028
: https://doi.org/10.1016/j.jcis.2017.06.028

61. Supplementation of organic acids and algae extracts in the diet of red drum Sciaenops ocellatus: immunological impacts

Author:: Maria G Mendoza Rodriguez; Camilo Pohlenz; Delbert M Gatlin III
Source:: Aquaculture research 2017 v.48 no.4 pp. 1778-1786
ISSN:: 1355-557X
Subject:: Sciaenops ocellatus; algae; alginates; aquariums; carrageenan; cell proliferation; cell-mediated immunity; cellulose; crude protein; experimental diets; farmed fish; feed conversion; feed supplements; fish feeds; gastrointestinal system; immune response; immunoglobulins; immunostimulants; juveniles; models; organic acids and salts; phagocytosis; polyhydroxybutyrate; potassium; weight gain
Abstract:: ... The evaluation of a wide variety of immunostimulatory compounds in the diet of cultured fish has received heightened attention in recent years. However, two organic acids, polyhydroxybutyrate (PHB) and potassium diformate (KDF), have been researched to only a limited extent with aquatic species but have been shown to have various positive effects on terrestrial animals. Two algae extracts, carrage ...
DOI:: 10.1111/are.13015
: https://doi.org/10.1111/are.13015

62. Comparison of Chemical Structure of Alginite Humic Acids Isolated with Two Different Procedures with Soil Humic Acids

Author:: Gabriela Barančíková; Tadeáš Litavec
Source:: Agriculture = Pol̕nohospodárstvo 2016 v.62 no.4 pp. 138-148
ISSN:: 1338-4376
Subject:: Cambisols; Chernozems; algae; alginates; ash content; carbon; cellulose; chemical structure; humic acids; lignin; nuclear magnetic resonance spectroscopy; soil sampling; stable isotopes
Abstract:: ... The different origin of alginite and soil organic matter may be the reason of differences in their humic acids (HA) chemical structure. One of the aims of this article is to compare the chemical composition of alginite HA and HA isolated from different soil types. Another aim of this article is to compare the chemical structure of humic acids of alginite isolated with two different procedures: mod ...
DOI:: 10.1515/agri-2016-0014
: https://doi.org/10.1515/agri-2016-0014

63. Comparison of different types of pretreatment and enzymatic saccharification of Macrocystis pyrifera for the production of biofuel

Author:: María Cristina Ravanal; Ricardo Pezoa-Conte; Sebastian von Schoultz; Jarl Hemming; Oriana Salazar; Ikenna Anugwom; Olatunde Jogunola; Päivi Mäki-Arvela; Stefan Willför; Jyri-Pekka Mikkola; María Elena Lienqueo
Source:: Algal research 2016 v.13 pp. 141-147
ISSN:: 2211-9264
Subject:: Macrocystis pyrifera; acetates; algae; alginate lyase; alginates; beta-glucosidase; biofuels; carbohydrate content; carbohydrate structure; cellulose; derivatization; gas chromatography; glucose; ionic liquids; methanolysis; saccharification; sulfuric acid; uronic acids
Abstract:: ... In this work, the brown algae Macrocystis pyrifera were pretreated with dilute sulfuric acid, water and three different types of ionic liquids (ILs): 1-ethyl-3-methylimidazolium acetate ([EMIM][OAc]), 1,5-diazabicyclo[4.3.0]non-5-ene acetate ([DBNH][OAc]) and 1,8-diazabicyclo-[5.4.0]–undec-7-ene–sulfurdioxide–monoethanolamine (DBU–MEA–SO2–SIL), to disassemble the complex polysaccharide structure. ...
DOI:: 10.1016/j.algal.2015.11.023
: https://doi.org/10.1016/j.algal.2015.11.023

64. Elaboration of light composite materials based on alginate and algal biomass for flame retardancy: preliminary tests

Author:: Olivia Gady; Marie Poirson; Thierry Vincent; Rodolphe Sonnier; Eric Guibal
Source:: Journal of materials science 2016 v.51 no.22 pp. 10035-10047
ISSN:: 0022-2461
Subject:: Phaeophyceae; algae; alginates; bentonite; biomass; calcium; clay; composite materials; freeze drying; gelation; hydrocolloids; irradiation; manufacturing; renewable resources; sustainable manufacturing; thermal degradation
Abstract:: ... Alginate-based composites prepared by incorporation of bentonite into alginate or algal hydrogels show promising properties in terms of thermal degradation (mass-loss rate curves under epiradiator irradiation). They can be used as coating agent or as structured materials. Alginates characterized by high guluronic acid content are more efficient for retarding the ignition of tested materials after ...
DOI:: 10.1007/s10853-016-0230-z
: https://doi.org/10.1007/s10853-016-0230-z

65. Evaluation of anticoagulant activity of two algal polysaccharides

Author:: C. Faggio; M. Pagano; A. Dottore; G. Genovese; M. Morabito
Source:: Natural product research 2016 v.30 no.17 pp. 1934-1937
ISSN:: 1478-6427
Subject:: Agardhiella; Ulva; agar; algae; alginates; anticoagulant activity; anticoagulants; blood coagulation; carrageenan; coagulation; industrial applications; lakes; metabolism; prothrombin; sulfates; thromboplastin; toxicity; Italy; Sicily
Abstract:: ... Marine algae are important sources of phycocolloids like agar, carrageenans and alginates used in industrial applications. Algal polysaccharides have emerged as an important class of bioactive products showing interesting properties. The aim of our study was to evaluate the potential uses as anticoagulant drugs of algal sulphate polysaccharides extracted from Ulva fasciata (Chlorophyta) and Agardh ...
DOI:: 10.1080/14786419.2015.1086347
: https://doi.org/10.1080/14786419.2015.1086347

66. Marine polysaccharide-based nanomaterials as a novel source of nanobiotechnological applications

Author:: Panchanathan Manivasagan; Junghwan Oh
Source:: International journal of biological macromolecules 2016 v.82 pp. 315-327
ISSN:: 0141-8130
Subject:: Crustacea; agarose; algae; alginates; biocompatibility; biodegradability; biosensors; carrageenan; chitin; chitosan; drugs; fucoidan; gene transfer; microorganisms; nanomaterials; neoplasms; research and development; therapeutics; tissue engineering; water treatment
Abstract:: ... Research on marine polysaccharide-based nanomaterials is emerging in nanobiotechnological fields such as drug delivery, gene delivery, tissue engineering, cancer therapy, wound dressing, biosensors, and water treatment. Important properties of the marine polysaccharides include biocompatibility, biodegradability, nontoxicity, low cost, and abundance. Most of the marine polysaccharides are derived ...
DOI:: 10.1016/j.ijbiomac.2015.10.081
: https://doi.org/10.1016/j.ijbiomac.2015.10.081

67. Potential of marine algae (sea weeds) as source of medicinally important compounds

Author:: N. Anand; D. Rachel; N. Thangaraju; P. Anantharaman
Source:: Plant genetic resources 2016 v.14 no.4 pp. 303-313
ISSN:: 1479-263X
Subject:: alginates; bioactive properties; carrageenan; chemical compounds; chemical defenses; diabetes; drugs; heart diseases; human health; humans; indigenous knowledge; macroalgae; microorganisms; neoplasms; pharmaceutical industry; predators; respiratory tract diseases; secondary metabolites; therapeutics; China; India
Abstract:: ... Scientific research has always been concerned with aspects of human health. There are several systems of medicines besides the globally accepted allopathy, which are based on compounds originating from natural products. Recent research has been centred around validation of the traditional knowledge on medicinal products. The traditional systems in India, China and forklore medicines in other parts ...
DOI:: 10.1017/S1479262116000381
: https://doi.org/10.1017/S1479262116000381

68. Fouling characteristics of UF and RO membranes for reclamation of the wastewater from Iron and Steel Industry

Author:: Sang Kyo Choi; Yi Haakrho; Jeongki Moon; Youlboong Sung; Shin Gyung Kang
Source:: International journal of environmental sciences 2015 v.5 no.4 pp. 709-716
ISSN:: 0976-4402
Subject:: algae; alginates; aluminum; biopolymers; calcium; carbon; coal; disinfectants; fouling; furnaces; industry; iron; metabolism; microbial contamination; nutrients; raw materials; reverse osmosis; sand filters; silicon; solar radiation; steel; ultrafiltration; wastewater; wastewater treatment; water
Abstract:: ... Among the whole iron and steel-making processes, wastewaters from coke-making, blast furnace and steel-making contain relatively high organic contaminants due to direct using of raw materials like coal or iron ore. These wastewaters are pretreated by biological nutrients removal processes. On the other hand, wastewater from rolling-mill processes contains mainly inorganic contaminants. In this stu ...
DOI:: 10.6088/ijes.2014050100066
: https://doi.org/10.6088/ijes.2014050100066

69. Multiple-response optimization of the acidic treatment of the brown alga Ecklonia radiata for the sequential extraction of fucoidan and alginate

Author:: Andrew John Lorbeer; Jelle Lahnstein; Vincent Bulone; Trung Nguyen; Wei Zhang
Source:: Bioresource technology 2015 v.197 pp. 302-309
ISSN:: 0960-8524
Subject:: Ecklonia radiata; algae; alginates; biorefining; cross contamination; fucoidan; molecular weight; pH; response surface methodology; temperature
Abstract:: ... The aim of this study was to optimize the acidic treatment of the brown alga Ecklonia radiata in order to extract fucoidan and facilitate the efficient sequential extraction of alginates. Response surface methodology was used to determine the effects of the temperature, pH, and duration of the acidic treatment on fucoidan yield, alginate extractability, and the molecular weight of sequentially ext ...
DOI:: 10.1016/j.biortech.2015.08.103
: https://doi.org/10.1016/j.biortech.2015.08.103

70. The effect of supplementation with polysaccharides, nucleotides, acidifiers and Bacillus strains in fish meal and soy bean based diets on growth performance in juvenile turbot (Scophthalmus maximus)

Author:: V.I. Fuchs; J. Schmidt; M.J. Slater; J. Zentek; B.H. Buck; D. Steinhagen
Source:: Aquaculture 2015 v.437 pp. 243-251
ISSN:: 0044-8486
Subject:: Bacillus subtilis; RNA; Scophthalmus maximus; active ingredients; additives; age structure; algae; alginates; aquaculture; bacteria; carnivores; condition factor; feed conversion; feed intake; fish meal; growth performance; growth retardation; juveniles; larvae; liver; nucleotides; oligosaccharides; potassium; prebiotics; probiotics; protein sources; proximate composition; soy protein concentrate; soybean meal; specific growth rate; turbot; weight gain; wheat gluten; yeasts
Abstract:: ... The investigation and application of a wide range of dietary supplements, such as probiotics, prebiotic and other additives, are increasingly popular in aquaculture research and practice. To date few studies have attempted to quantify the value of commercially available additives in improving growth performance of juvenile turbot (Scophthalmus maximus) and in compensating potential growth reductio ...
DOI:: 10.1016/j.aquaculture.2014.12.007
: https://doi.org/10.1016/j.aquaculture.2014.12.007

71. From algal polysaccharides to cyclodextrins to stabilize a urease inhibitor

Author:: Danièle Pro; Samuel Huguet; Mustapha Arkoun; Caroline Nugier-Chauvin; José Maria Garcia-Mina; Alain Ourry; Dominique Wolbert; Jean-Claude Yvin; Vincent Ferrières
Source:: Carbohydrate polymers 2014 v.112 pp. 145-151
ISSN:: 0144-8617
Subject:: additives; algae; alginates; alpha-cyclodextrin; bioactive compounds; fertilizers; hydrolysis; hydrophobicity; starch; urease; urease inhibitors
Abstract:: ... N-Butyl-phosphorotriamide (NBPT) is a fertilizer widely used for its urease inhibiting properties. Nevertheless, formulations currently commercialized are complex and do not avoid severe decrease of activity due to the low stability of the bioactive compound under acidic conditions. According to its structure, NPBT was thought to be able to interact with both polar additives, by its phosphoramide ...
DOI:: 10.1016/j.carbpol.2014.05.075
: https://doi.org/10.1016/j.carbpol.2014.05.075

72. Performance of dead Fucus serratus biomass in binary biosorption of Cd (II) and Ni (II) from aquatic habitat

Author:: Salman Ahmady-Asbchin; Naser Jafari
Source:: Yāftah/hā-yi nuvīn dar ̒ulūm-i zīstī 2014 v.1 no.1 pp. 45-55
ISSN:: 2476-7115
Subject:: Fucus serratus; adsorbents; adsorption; algae; alginates; aquatic habitat; batch systems; biomass; biosorption; cadmium; cost effectiveness; nickel; sorption isotherms
Abstract:: ... Methods of physical and chemical adsorption of heavy metals have disadvantages in some ways- such as high cost and ineffectiveness at low concentrations. In recent decades methods of biological uptake of heavy metals have been investigated. The biological adsorbents include bacteria, fungi and alga, among which algae have the highest efficiency of metal uptake. This study indicated that Alginic ac ...

73. Analysis of G-Block Distributions and Their Impact on Gel Properties of in Vitro Epimerized Mannuronan

Author:: Aarstad Olav; Strand Berit Løkensgard; Klepp-Andersen Lise Mari; Skjåk-Bræk Gudmund
Source:: Biomacromolecules 2013 v.14 no.10 pp. 3409-3416
ISSN:: 1526-4602
Subject:: algae; alginate gels; alginates; calcium; crosslinking; modulus of elasticity; molecular weight; nanocomposites; polymers
Abstract:: ... This paper reports a study of the distribution and function of homopolymeric guluronic acid blocks (G-blocks) in enzymatically modified alginate. High molecular weight mannuronan was incubated with one native (AlgE6) and two engineered G-block generating mannuronan C-5 epimerases (AlgE64 and EM1). These samples were found to contain G-blocks with a DP ranging from 20 to approximately 50, lacking t ...
DOI:: 10.1021/bm400658k
: https://doi.org/10.1021/bm400658k

74. Polysaccharide chemistry regulates kinetics of calcite nucleation through competition of interfacial energies

Author:: Anthony J. Giuffre; Laura M. Hamm; Nizhou Han; James J. De Yoreo; Patricia M. Dove
Source:: Proceedings of the National Academy of Sciences of the United States of America 2013 v.110 no.23 pp. 9261-9266
ISSN:: 0027-8424
Subject:: alginates; calcite; chitosan; energy; heparin; mineralization; proteins
Abstract:: ... Calcified skeletons are produced within complex assemblages of proteins and polysaccharides whose roles in mineralization are not well understood. Here we quantify the kinetics of calcite nucleation onto a suite of high-purity polysaccharide (PS) substrates under controlled conditions. The energy barriers to nucleation are PS-specific by a systematic relationship to PS charge density and substrate ...
DOI:: 10.1073/pnas.1222162110
PubMed:: 23690577
PubMed Central:: PMC3677451
: https://doi.org/10.1073/pnas.1222162110

75. Biosorption of Cr(VI) by free and immobilized Pediastrum boryanum biomass: equilibrium, kinetic, and thermodynamic studies

Author:: T. Baykal Ozer; I. Acıkgoz Erkaya; Abel U. Udoh; D. Yalcın Duygu; Aydın Akbulut; Gulay Bayramoglu; M. Yakup Arica
Source:: Environmental science and pollution research international 2012 v.19 no.7 pp. 2983-2993
ISSN:: 0944-1344
Subject:: Fourier transform infrared spectroscopy; Pediastrum; algae; alginates; aqueous solutions; batch systems; biomass; biosorbents; biosorption; endothermy; models; pH; pollution; research; sorption isotherms; temperature; thermodynamics
Abstract:: ... BACKGROUND AND PURPOSE: The biosorption of Cr(VI) from aqueous solution has been studied using free and immobilized Pediastrum boryanum cells in a batch system. The algal cells were immobilized in alginate and alginate–gelatin beads via entrapment, and their algal cell free counterparts were used as control systems during biosorption studies of Cr(VI). METHODS: The changes in the functional groups ...
DOI:: 10.1007/s11356-012-0809-0
: https://doi.org/10.1007/s11356-012-0809-0

76. Kinetics modeling of alginate alkaline extraction from Laminaria digitata

Author:: Vauchel, P.; Leroux, K.; Kaas, R.; Arhaliass, A.; Baron, R.; Legrand, J.
Source:: Bioresource technology 2009 v.100 no.3 pp. 1291-1296
ISSN:: 0960-8524
Subject:: algae; alginates; Laminaria; cell wall components; kinetics
Abstract:: ... Alginates being depolymerized during their alkaline extraction, reducing extraction time could help producing higher rheological quality alginates. The purpose of the present work is to study fresh Laminaria digitata destructuration during alkaline extraction and its link to extraction kinetics. Both alginate extraction yield and mean diameter of algae particles were followed for different values ...
DOI:: 10.1016/j.biortech.2008.03.005
PubMed:: 18849163
: https://doi.org/10.1016/j.biortech.2008.03.005

77. Effects of Ergosan on the expression of cytokine genes in the liver of juvenile rainbow trout (Oncorhynchus mykiss) exposed to enteric red mouth vaccine

Author:: Gioacchini, Giorgia; Smith, Patrick; Carnevali, Oliana
Source:: Veterinary immunology and immunopathology 2008 v.123 no.3-4 pp. 215-222
ISSN:: 0165-2427
Subject:: heat shock proteins; liver; interleukins; algae; vaccines; alginates; Oncorhynchus mykiss; immunomodulators; blood plasma; gene expression; plant extracts; tumor necrosis factor-alpha; stress tolerance; vaccination; immune response; juveniles
Abstract:: ... The effects of administration of the immunomodulator Ergosan, an algal extract containing alginic acid, in juvenile rainbow trout (Oncorhynchus mykiss) exposed to AquaVac[trade mark sign] vaccination, were tested. Juveniles treated with Ergosan, 95 days after the beginning of first solid feeding and control fish fed solely on commercial diet, were vaccinated by immersion in AquaVac[trade mark sign ...
DOI:: 10.1016/j.vetimm.2008.01.037
PubMed:: 18378002
: https://doi.org/10.1016/j.vetimm.2008.01.037

78. Characterization of polysaccharides extracted from brown seaweeds

Author:: Rioux, L.E.; Turgeon, S.L.; Beaulieu, M.
Source:: Carbohydrate polymers 2007 v.69 no.3 pp. 530-537
ISSN:: 0144-8617
Subject:: chemical composition; Ascophyllum nodosum; molecular weight; algae; sulfates; alginates; fucoidan; Fucus vesiculosus; chemical structure; Quebec
Abstract:: ... The structural characteristics of polysaccharides extracted from Quebec's seaweed have not been fully established to date. Ascophyllum nodosum, Fucus vesiculosus and Saccharina longicruris were studied in this research. The seaweeds were treated with selective solvents to extract laminaran and fucoidan in mixture (fraction A), fucoidan (fraction B), and alginate (fraction C). Analyses were perform ...
DOI:: 10.1016/j.carbpol.2007.01.009
: https://doi.org/10.1016/j.carbpol.2007.01.009

79. Polysaccharide localization in the sporophyte cell wall of Adenocystis utricularis (Ectocarpales s.l., Phaeophyceae)

Author:: Nora M.A. Ponce; Patricia I. Leonardi; María L. Flores; Carlos A. Stortz; María C. Rodríguez
Source:: Phycologia 2007 v.46 no.6 pp. 675-679
ISSN:: 2330-2968
Subject:: Adenocystis; algae; alginates; cell walls; chemical composition; fluorescence; fucoidan; sporophytes; sulfates; thallus
Abstract:: ... N.M.A. Ponce, P.I. Leonardi, M.L. Flores, C.A. Stortz and M.C. Rodríguez. 2007. Polysaccharide localization in the sporophyte cell wall of Adenocystis utricularis (Ectocarpales s.l., Phaeophyceae. Phycologia 46: 675–679. DOI: 10.2216/06-102.1. The chemical composition of the sporophyte cell wall of Adenocystis utricularis was examined by using a number of histochemical techniques for the localizat ...
DOI:: 10.2216/06-102.1
: https://doi.org/10.2216/06-102.1

80. High-M alginate immunostimulation of Atlantic halibut (Hippoglossus hippoglossus L.) larvae using Artemia for delivery, increases resistance against vibriosis

Author:: Skjermo, J.; Bergh, O.
Source:: Aquaculture 2004 v.238 no.1-4 pp. 107-113
ISSN:: 0044-8486
Subject:: fish farms; algae; alginates; immunostimulants; oral administration; fish feeding; marine fish; dose response; mariculture; Vibrio anguillarum; disease resistance; feed supplements; fish larvae; mortality; fish culture; animal growth; campylobacteriosis; Artemia; halibut; fish diseases; Hippoglossus hippoglossus
Abstract:: ... A strategy for microbial management in marine juvenile production should include nonspecific immunostimulation to reduce losses caused by infectious diseases. Halibut (Hippoglossus hippoglossus L.) larvae (250 day degrees) were distributed into first-feeding tanks of 10.000 l, at a Norwegian halibut juvenile farm. Immunomodulatory high-M alginate was bioencapsulated in Artemia by use of alginate m ...

81. Sea tangle supplementation lowers blood glucose and supports antioxidant systems in streptozotocin-induced diabetic rats

Author:: Lee, K.S.; Choi, Y.S.; Seo, J.S.
Source:: Journal of medicinal food 2004 v.7 no.2 pp. 130-135
ISSN:: 1096-620X
Subject:: peroxides; aqueous solutions; catalase; algae; diabetes mellitus; alginates; blood glucose; plant extracts; enzyme activity; superoxide dismutase; alpha-tocopherol; glutathione peroxidase; animal models; antioxidant activity; rats; dietary supplements; vitamin A; protective effect
DOI:: 10.1089/1096620041223996
PubMed:: 15298757
: https://doi.org/10.1089/1096620041223996

82. Characterization of mannuronan C-5-epimerase genes from the brown alga Laminaria digitata

Author:: Nyvall, P.; Corre, E.; Boisset, C.; Barbeyron, T.; Rousvoal, S.; Scornet, D.; Kloareg, B.; Boyen, C.
Source:: Plant physiology 2003 v.133 no.2 pp. 726-735
ISSN:: 0032-0889
Subject:: messenger RNA; biosynthesis; complementary DNA; algae; alginates; phylogeny; amino acid sequences; gene expression; isomerases; nucleotide sequences; molecular cloning; Laminaria; plant proteins
Abstract:: ... Alginate is an industrially important polysaccharide obtained commercially by harvesting brown algae. The final step in alginate biosynthesis, the epimerization of beta-1,4-D-mannuronic acid to alpha-1,4-L-guluronic acid, a structural change that controls the physicochemical properties of the alginate, is catalyzed by the enzyme mannuronan C-5-epimerase. Six different cDNAs with homology to bacter ...
DOI:: 10.1104/pp.103.025981
PubMed:: 14526115
PubMed Central:: PMC219047
: https://doi.org/10.1104/pp.103.025981

83. Isolation and Characterization of Alginic Acid from Commercially Cultured Nemacystus decipiens (Itomozuku)

Author:: Masakuni TAKO; Seiki KIYUNA; Shuntoku UECHI; Fujiya HONGO
Source:: Bioscience, biotechnology, and biochemistry 2001 v.65 no.3 pp. 654-657
ISSN:: 1347-6947
Subject:: Nemacystus; Ryukyu Archipelago; algae; alginates; biotechnology; molecular weight; uronic acids
Abstract:: ... An alginate was isolated from commercially cultured Nemacystus decipiens which had been harvested in Yonashiro Town (Okinawa, Japan). The yield of the alginate was 1.6% (w/w of wet alga), and the uronic acid, ash and moisture contents of the alginate were 86.0%, 12.0%, and 2.3% (w/w), respectively. The molecular mass of the alginate was estimated to be about 1.5×10⁵. The infrared spectrum and opti ...
DOI:: 10.1271/bbb.65.654
: https://doi.org/10.1271/bbb.65.654

84. Alginate Production by Azotobacter Vinelandii

Author:: Franceses Clementi
Source:: Critical reviews in biotechnology 1997 v.17 no.4 pp. 327-361
ISSN:: 1549-7801
Subject:: Azotobacter vinelandii; algae; alginates; bacteria; chemical composition; molecular weight; physiology; polymers; rheology
Abstract:: ... Although all commercial alginates are today of algal origin, there is interest in the production of alginate-like polymers from bacteria. The species Azotobacter vinelandii seems to be the best candidate for the industrial production of alginate molecules characterized by a chemical composition, molecular mass and molecular mass distribution suited to a well defined application, especially require ...
DOI:: 10.3109/07388559709146618
PubMed:: 9397533
: https://doi.org/10.3109/07388559709146618

85. Interaction of metals and protons with algae. 4. Ion exchange vs adsorption models and a reassessment of scatchard plots; ion-exchange rates and equilibria compared with calcium alginate

Author:: Crist, R.H.; Martin, J.R.; Carr, D.; Watson, J.R.; Clarke, H.J.; Crist, D.R.
Source:: Environmental science & technology 1994 v.28 no.11 pp. 1859-1866
ISSN:: 1520-5851
Subject:: mathematical models; algae; ion exchange; alginates; metals; adsorption
DOI:: 10.1021/es00060a016
PubMed:: 22175926
: https://doi.org/10.1021/es00060a016

86. Seasonal variation in the chemical constituents of the brown algae Macrocystis integrifolia and Nereocystis luetkeana

Author:: Rosell, K.G.; Srivastava, L.M.
Source:: Canadian journal of botany 1984 v.62 no.11 pp. 2229-2236
ISSN:: 1480-3305
Subject:: algae; alginates; ash content; seasonal variation; mannitol; chemical constituents of plants; mineral content; British Columbia
DOI:: 10.1139/b84-303
: https://doi.org/10.1139/b84-303

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1. Algae application in civil construction: A review with focus on the potential uses of the pelagic Sargassum spp. biomass

2. Assembly and synthesis of the extracellular matrix in brown algae

3. Brown algal cell walls and development

4. Effects of hydrogen peroxide on Scenedesmus obliquus: Cell growth, antioxidant enzyme activity and intracellular protein fingerprinting

5. Seasonal patterns of growth, alginate content and block structure of the alien invader Sargassum muticum (Fucales, Ochrophyta) from the Atlantic coast of Morocco

6. Substrate degradation pathways, conserved functions and community composition of the hindgut microbiota in the herbivorous marine fish Kyphosus sydneyanus

7. Boosted Cr(VI) sorption coupled reduction from aqueous solution using quaternized algal/alginate@PEI beads

8. Genome-wide transcriptome profiling and characterization of mannuronan C5-epimerases in Saccharina japonica

9. Immobilized algae‐based treatment of herbicide‐contaminated groundwater

10. Potential Antiviral Properties of Industrially Important Marine Algal Polysaccharides and Their Significance in Fighting a Future Viral Pandemic

11. Two Benthic Diatoms, Nanofrustulum shiloi and Striatella unipunctata, Encapsulated in Alginate Beads, Influence the Reproductive Efficiency of Paracentrotus lividus by Modulating the Gene Expression

12. Adsorption of Cu(II) Ions on Adsorbent Materials Obtained from Marine Red Algae Callithamnion corymbosum sp.

13. Antioxidant and Antitumoral Properties of Aqueous Fractions from Frozen Sargassum muticum

14. Batch and column study on tetracycline removal using green synthesized NiFe nanoparticles immobilized alginate beads

15. Cellulosic material obtained from Antarctic algae biomass

16. Detection and isolation of low molecular weight alginate- and laminaran-susceptible gut indigenous bacteria from ICR mice

17. Fucoidans of Moroccan Brown Seaweed as Elicitors of Natural Defenses in Date Palm Roots

18. Indole-3-acetic acid from Azosprillum brasilense promotes growth in green algae at the expense of energy storage products

19. Induction of Natural Defenses in Tomato Seedlings by Using Alginate and Oligoalginates Derivatives Extracted from Moroccan Brown Algae

20. Multilayered composite-coated ionically crosslinked food-grade hydrogel beads generated from algal alginate for controlled and sustained release of bioactive compounds

21. Review on marine carbohydrate-based gold nanoparticles represented by alginate and chitosan for biomedical application

22. Sorption of paralytic shellfish toxins (PSTs) in algal polysaccharide gels

23. Synthesis of bioactive silver nanoparticles using alginate, fucoidan and laminaran from brown algae as a reducing and stabilizing agent

24. Use of algal biorefinery waste and waste office paper in the development of xerogels: A low cost and eco-friendly biosorbent for the effective removal of congo red and Fe (II) from aqueous solutions

25. Acidic polysaccharides isolated from marine algae inhibit the early step of viral infection

26. Advances in the biorefinery of Sargassum muticum: Valorisation of the alginate fractions

27. Algae in food: a general review

28. Algal polysaccharides: potential bioactive substances for cosmeceutical applications

29. Biosynthesis and Function of Long Guluronic Acid-Blocks in Alginate Produced by Azotobacter vinelandii

30. Ecofriendly extraction of bioactive fractions from Sargassum muticum

31. Effect of alginate on the release of amide nitrogen for soilless cultivation applications

32. Fabrication Challenges and trends in biomedical applications of alginate electrospun nanofibers

33. Hydrogel based dessert of low calorie content

34. Improved Palmaria palmata hatchery methods for tetraspore release, even settlement and high seedling survival using strong water agitation and macerated propagules

35. Optimization of extrusion-assisted extraction parameters and characterization of alginate from brown algae (Sargassum cristaefolium)

36. Phycoremediation of lithium ions from aqueous solutions using free and immobilized freshwater green alga Oocystis solitaria: mathematical modeling for bioprocess optimization

37. Sargassum muticum extract based on alginate biopolymer as a new efficient biological corrosion inhibitor for carbon steel in hydrochloric acid pickling environment: Gravimetric, electrochemical and surface studies

38. Zn adsorption onto Irish Fucus vesiculosus: Biosorbent uptake capacity and atomistic mechanism insights

39. Alginate/albumin in incubation solution mediates the adhesion and biofilm formation of typical marine bacteria and algae

40. Batch and Fixed Bed Biosorption of Copper by Acidified Algae Waste Biomass

41. Biochemical properties and culture optimization of Leathesia marina (Phaeophyceae)

42. Comparison study of bioactive substances and nutritional components of brown algae Sargassum fusiforme strains with different vesicle shapes

43. Enforced fungal-algal symbioses in alginate spheres

44. Enhancement of dietary effect of Nannochloropsis sp. on juvenile Ruditapes philippinarum clams by alginate hydrolysates

45. Functional genomics analysis reveals the biosynthesis pathways of important cellular components (alginate and fucoidan) of Saccharina

46. Identification and characterization of the fucoidanase gene from Luteolibacter algae H18

47. Monthly variation in the chemical composition and biological activity of Sargassum horridum

48. Optimization and Characterization of Cladophora sp. Alga Immobilized in Alginate Beads and Silica Gel for the Biosorption of Mercury from Aqueous Solutions

49. PEDOT doped with algal, mammalian and synthetic dopants: polymer properties, protein and cell interactions, and influence of electrical stimulation on neuronal cell differentiation

50. Participation of copper ions in formation of alginate conditioning layer: Evolved structure and regulated microbial adhesion

51. Preparation of 4-Deoxy-L-erythro-5-hexoseulose Uronic Acid (DEH) and Guluronic Acid Rich Alginate Using a Unique exo-Alginate Lyase from Thalassotalea crassostreae

52. Scalable long-term extraction of photosynthetic electrons by simple sandwiching of nanoelectrode array with densely-packed algal cell film

53. The determination of the leaching ratios of microdiets containing algae used as direct and indirect in aquaculture

54. Bimonthly variation in the chemical composition and biological activity of the brown seaweed Eisenia arborea (Laminariales: Ochrophyta) from Bahía Magdalena, Baja California Sur, Mexico

55. Chemical synthesis of guanosine diphosphate mannuronic acid (GDP-ManA) and its C-4-O-methyl and C-4-deoxy congeners

56. Cyclic fractionation process for Saccharina latissima using aqueous chelator and ion exchange resin

57. Feasibility of posthydrolysis processing of hydrothermal extracts from Sargassum muticum

58. Marine polysaccharides: therapeutic efficacy and biomedical applications

59. Natural resource landscapes of a marine bacterium reveal distinct fitness‐determining genes across the genome

60. Praseodymium sorption on Laminaria digitata algal beads and foams

61. Supplementation of organic acids and algae extracts in the diet of red drum Sciaenops ocellatus: immunological impacts

62. Comparison of Chemical Structure of Alginite Humic Acids Isolated with Two Different Procedures with Soil Humic Acids

63. Comparison of different types of pretreatment and enzymatic saccharification of Macrocystis pyrifera for the production of biofuel

64. Elaboration of light composite materials based on alginate and algal biomass for flame retardancy: preliminary tests

65. Evaluation of anticoagulant activity of two algal polysaccharides

66. Marine polysaccharide-based nanomaterials as a novel source of nanobiotechnological applications

67. Potential of marine algae (sea weeds) as source of medicinally important compounds

68. Fouling characteristics of UF and RO membranes for reclamation of the wastewater from Iron and Steel Industry

69. Multiple-response optimization of the acidic treatment of the brown alga Ecklonia radiata for the sequential extraction of fucoidan and alginate

70. The effect of supplementation with polysaccharides, nucleotides, acidifiers and Bacillus strains in fish meal and soy bean based diets on growth performance in juvenile turbot (Scophthalmus maximus)