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2019
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alginates
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algae
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- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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
- 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