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You searched for: Subject algae Remove constraint Subject: algae Subject ascorbic acid Remove constraint Subject: ascorbic acid
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1. Preparation, characterization, radical scavenging property and antidiabetic potential of laminarioligosaccharides derived from laminarin

Author:
Naveen Jayapala; Veeresh Toragall; Gnanesh Kumar B.S.; Sachin R. Chaudhari; Vallikannan Baskaran
Source:
Algal research 2022 v.63 pp. 102642
ISSN:
2211-9264
Subject:
Phaeophyceae; algae; alpha-amylase; antioxidant activity; antioxidants; ascorbic acid; dietary fiber; hydrochloric acid; hydrolysates; hydrolysis; mass spectrometry; molecular weight; polysaccharides; quercetin; research; thin layer chromatography; ultra-performance liquid chromatography
Abstract:
... Laminarin is a polysaccharide (dietary fibre), rich in marine brown seaweed. Derived low molecular weight polysaccharides exhibit various biofunctional properties including antitumor, anti-apoptotic, anti-inflammatory, antiobese and antioxidant activity. Hence, the present study aimed to hydrolyse laminarin using 0.2 M Hydrochloric acid (HCl) into laminarioligosaccharides and their characterizatio ...
DOI:
10.1016/j.algal.2022.102642

2. Acute toxicity of disinfection by-products from chlorination of algal organic matter to the cladocerans Ceriodaphnia silvestrii and Daphnia similis: influence of bromide and quenching agent

Author:
Luan de Souza Leite; Allan Pretti Ogura; Danilo Vitorino dos Santos; Evaldo Luiz Gaeta Espíndola; Luiz Antonio Daniel
Source:
Environmental science and pollution research 2022 v.29 no.24 pp. 35800-35810
ISSN:
0944-1344
Subject:
Ceriodaphnia; Chlorella sorokiniana; Daphnia similis; acute toxicity; algae; ascorbic acid; chloral hydrate; chlorination; chlorine; chloroform; disinfection; ecotoxicology; organic matter; pollution; research; water quality
Abstract:
... Algal organic matter (AOM) in water reservoirs is a worldwide concern for drinking water treatment; once it is one of the main precursors for disinfection by-products formation (DBPs). In this context, this study investigated the ecotoxicity of DBPs from chlorination of AOM to Ceriodaphnia silvestrii and Daphnia similis (Crustacea, Cladocera). The bioassays evaluated three scenarios, including the ...
DOI:
10.1007/s11356-022-18752-8

3. Antimicrobial and antioxidant activity of Evernia prunastri extracts and their isolates

Author:
A. Shcherbakova; A. A. Strömstedt; U. Göransson; O. Gnezdilov; A. Turanov; D. Boldbaatar; D. Kochkin; G. Ulrich-Merzenich; A. Koptina
Source:
World journal of microbiology & biotechnology 2021 v.37 no.8 pp. 129
ISSN:
0959-3993
Subject:
Candida albicans; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; acetonitrile; active ingredients; algae; antioxidant activity; antioxidants; ascorbic acid; biotechnology; gallic acid; gel chromatography; hexane; lichens; metabolites; methylene chloride; photosynthesis; usnic acid; yeasts
Abstract:
... Lichens are symbiotic organisms formed by a fungus and one or more photosynthetic partners which are usually alga or cyanobacterium. Their diverse and scarcely studied metabolites facilitate adaptability to extreme living conditions. We investigated Evernia prunastri (L.) Ach., a widely distributed lichen, for its antimicrobial and antioxidant potential. E. prunastri was sequentially extracted by ...
DOI:
10.1007/s11274-021-03099-y

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

5. Enhancing the oxidative stability of algal oil powders stabilized by egg yolk granules/lecithin composites

Author:
Junhua Li; Yimei Shen; Jiali Zhai; Yujie Su; Luping Gu; Cuihua Chang; Yanjun Yang
Source:
Food chemistry 2021 v.345 pp. 128782
ISSN:
0308-8146
Subject:
algae; algal oils; alpha-tocopherol; antioxidants; ascorbic acid; egg yolk; emulsions; food chemistry; free radicals; lecithins; lipid peroxidation; oxidation; oxidative stability; pH; palmitates; storage
Abstract:
... This study reported a powder formulation containing omega-3-rich algal oil emulsions stabilized by egg yolk granules (EYGs)/lecithin composites. The improved physical stability of the algal oil samples due to increasing pH and lecithin addition was beneficial to the oxidative stability through analysis of free radical scavenging activities, metal ion chelating activities, and the release of primar ...
DOI:
10.1016/j.foodchem.2020.128782

6. Larviculture of the painted river prawn Macrobrachium carcinus in different culture systems

Author:
João Paulo V. Lima; Fabiana P. Melo; Maria Gabriela P. Ferreira; Dallas L. Flickinger; Eudes S. Correia
Source:
Aquacultural engineering 2021 v.92 pp. 102139
ISSN:
0144-8609
Subject:
Carcinus; Chlorophyceae; Macrobrachium; administrative management; aeration; air; algae; alkalinity; ammonia; aquacultural engineering; ascorbic acid; biofloc technology; brackish water; cells; chlorine; chlorophyll; containers; density; diet; hatcheries; larval development; molasses; nauplii; nitrates; nitrites; nitrogen; organic carbon; orthophosphates; oxygen; pH; plastics; postlarvae; salinity; temperature; total suspended solids; water quality
Abstract:
... The objective of this study was to evaluate different hatchery systems used for the larviculture of the Macrobrachium carcinus based on survival, larval development and production of post-larvae. The experimental culture was carried out in three phases designated as Phase I (Zoea VI to VIII – ZVI – VIII), Phase II (Zoea VIII to X – ZVIII – X), and Phase III (Zoea X to PL – ZX – PL), with densities ...
DOI:
10.1016/j.aquaeng.2020.102139

7. Magnetic Fe3O4 nanoparticles enhance cyanobactericidal effect of allelopathic p-hydroxybenzoic acid on Microcystis aeruginosa by enhancing hydroxyl radical production

Author:
Shengpeng Zuo; Hao Yang; Xiaofeng Jiang; Yongqing Ma
Source:
Science of the total environment 2021 v.770 pp. 145201
ISSN:
0048-9697
Subject:
4-hydroxybenzoic acid; Microcystis aeruginosa; algae; algal blooms; allelochemicals; ascorbic acid; environment; hormesis; hydroxybenzoic acids; hydroxyl radicals; light intensity; magnetism; microcystins; polysaccharides; protein content
Abstract:
... Recently, considerable progress has been made in the environmental application of nanotechnology. However, little is known about how nanomaterials might affect the cyanobacterial suppression potential of allelochemicals. In this study, a microcosm was employed to simulate and verify the effect of magnetic Fe₃O₄ nanoparticles (MFN) on the inhibitory influence of allelopathic hydroxybenzoic acid (p- ...
DOI:
10.1016/j.scitotenv.2021.145201

8. Dietary patterns and their effects on postpartum weight retention of lactating women in south central China

Author:
Zhi Huang; Neng Li; Yu-Ming Hu
Source:
Nutrition 2019 v.67-68 pp. 110555
ISSN:
0899-9007
Subject:
algae; ascorbic acid; bacteria; calcium; diet; eating habits; energy intake; grains; lactating women; lactation; nutrients; obesity; principal component analysis; raw vegetables; red meat; regression analysis; risk factors; selenium; soymilk; thiamin; vitamin A; China
Abstract:
... Postpartum weight retention is a short- and long-term risk factor for overweight and obesity in women. The aim of this study was to evaluate dietary patterns and their effects on postpartum weight retention among lactating women in south central China.The study included 305 lactating women. A 24-h recall method on 3 consecutive d was used to collect dietary information. Furthermore, principal comp ...
DOI:
10.1016/j.nut.2019.110555

9. 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

10. Mechanical properties and quality parameters of chitosan‐edible algae (Palmaria palmata) on ready‐to‐eat strawberries

Author:
Daniel Rico; Beatriz Barcenilla; Agate Meabe; Cristina González; Ana B Martín‐Diana
Source:
Journal of the science of food and agriculture 2019 v.99 no.6 pp. 2910-2921
ISSN:
0022-5142
Subject:
Palmaria palmata; algae; anthocyanins; ascorbic acid; cell respiration; chitosan; coatings; edible films; flavor; juiciness; mechanical properties; microbial load; nutritive value; phytonutrients; ready-to-eat foods; shelf life; storage temperature; strawberries; taste
Abstract:
... BACKGROUND: Strawberries are appreciated for their taste, flavor, and juiciness; however, they are highly perishable during postharvest, handling, and storage stages, producing significant physical damage and loss of vitamins and other phytonutrients. This study therefore aimed to determine the applicability of edible coatings as an environmentally friendly strategy to improve the fresh appearance ...
DOI:
10.1002/jsfa.9504

11. Antioxidant and antihyperlipidemic activities of purified polysaccharides from Ulva pertusa

Author:
Weida Li; Kai Wang; Nanfang Jiang; Xiaolei Liu; Minghui Wan; Xintao Chang; Dongmei Liu; Huimin Qi; Shunmei Liu
Source:
Journal of applied phycology 2018 v.30 no.4 pp. 2619-2627
ISSN:
0921-8971
Subject:
Ulva; algae; antioxidant activity; antioxidants; ascorbic acid; blood serum; glucose; high density lipoprotein cholesterol; hyperlipidemia; inhibitory concentration 50; low density lipoprotein cholesterol; mice; molecular weight; polysaccharides; rhamnose; therapeutics; triacylglycerols; xylose
Abstract:
... Several studies have reported that ulvan from the alga Ulva pertusa (Chlorophyta) exhibits substantial antioxidant and antihyperlipidemic activities; however, which group of heteropolysaccharides play roles in these activities remains unknown. To identify the components of ulvan that possess biological activity, we used a DEAE-Sepharose fast-flow column. Two purified polysaccharides (F1 and F2) we ...
DOI:
10.1007/s10811-018-1475-5

12. Comparative analysis of in vitro antioxidant capacities of mycosporine-like amino acids (MAAs)

Author:
Priscila Torres; Janaína Pires Santos; Fungyi Chow; Marcelo J. Pena Ferreira; Deborah Y.A.C. dos Santos
Source:
Algal research 2018 v.34 pp. 57-67
ISSN:
2211-9264
Subject:
Rhodophyta; algae; amino acids; antioxidant activity; antioxidants; ascorbic acid; butylated hydroxytoluene; electron transfer; gallic acid; pH; quercetin; reaction mechanisms; rutin
Abstract:
... The most common Mycosporine-like Amino Acids (MAAs) in red algae (asterina-330, shinorine, palythine, palythinol, and porphyra-334) were evaluated regarding their in vitro antioxidant capacities, comparing them with synthetic (BHT and Trolox) and natural (ascorbic acid, gallic acid, p-cumaric acid, quercetin, and rutin) antioxidants. Folin-Ciocalteu, ABTS+, and FRAP assays have the same reaction m ...
DOI:
10.1016/j.algal.2018.07.007

13. Monitoring the antioxidant activities by extracting the polyphenolic contents of algae collected from the Bosphorus

Author:
Ertugrul Aslan; Abdullah Aksu; Nagihan Ersoy Korkmaz; Omer S. Taskin; Nuray Balkis Caglar
Source:
Marine pollution bulletin 2019 v.141 pp. 313-317
ISSN:
0025-326X
Subject:
Ceramium; Ulva lactuca; algae; antioxidant activity; ascorbic acid; flavonoids; lipophilicity; monitoring; phenolic acids; population density; rapid methods; reversed-phase high performance liquid chromatography; solvents; ultraviolet-visible spectroscopy; water pollution
Abstract:
... The identification and quantification of ascorbic acid, phenolic acids and flavonoids were carried out simultaneously with a rapid method of reverse-phase high-performance liquid chromatography (RP-HPLC). Total flavonoid contents were being determined by UV–Vis spectrophotometry, and total phenolic contents were determined by UV–Vis spectrophotometry using the Folin-Ciocalteu Reagent (FCR) method. ...
DOI:
10.1016/j.marpolbul.2019.02.059

14. Natural vitamin B12 and fucose supplementation of green smoothies with edible algae and related quality changes during their shelf life

Author:
Noelia Castillejo; Ginés Benito Martínez‐Hernández; Valentina Goffi; Perla A Gómez; Encarna Aguayo; Francisco Artés; Francisco Artés‐Hernández
Source:
Journal of the science of food and agriculture 2018 v.98 no.6 pp. 2411-2421
ISSN:
0022-5142
Subject:
Chlorella; Spirulina; Ulva; Undaria pinnatifida; algae; ascorbic acid; beverages; edible seaweed; fucose; mosses and liverworts; shelf life; vegan diet; vegetables; vitamin B12
Abstract:
... BACKGROUND: Some algae are an excellent sources of vitamin B12, of special interest for vegetarian/vegan consumers, and of fucose to supplement fruit and vegetable beverages such as smoothies. Nevertheless, supplementation of smoothies with algae may lead to possible quality changes during smoothie shelf life that need to be studied. Therefore, the quality changes in fresh green smoothies suppleme ...
DOI:
10.1002/jsfa.8733

15. Skreening Alga Hijau Halimeda opuntia (Linnaeus) sebagai Antioksidan dari Pesisir Aceh Barat

Author:
Mohamad Gazali; Nurjanah; Neviaty Putri Zamani
Source:
Jurnal Ilmu Pertanian Indonesia 2019 v.24 no.3 pp. -
ISSN:
2443-3462
Subject:
Halimeda opuntia; algae; antioxidant activity; antioxidants; ascorbic acid; ethanol; ethyl acetate; flavonoids; hexane; maceration; phenol; Indonesia
Abstract:
... H. opuntia is one of the green algae that distributes sufficiently dominant at the coastal of West Aceh. This research aims to screen the green algae H. opuntia that is potentia as an antioxidant agent. Extraction method in this research used mono maceration. The solvents that are used including ethanol (polar), ethyl acetate (semi-polar), and n-hexane (non-polar). With those three solvents it was ...
DOI:
10.18343/jipi.24.3.267

16. Variation of both chemical composition and antioxidant properties of newly isolated Parachlorella kessleri GB1, by growing in different culture conditions

Author:
A.K. Sharma; Parul; Thiyam General
Source:
Lebensmittel-Wissenschaft + Technologie 2019 v.112 pp. 108205
ISSN:
0023-6438
Subject:
2,2-diphenyl-1-picrylhydrazyl; Parachlorella kessleri; algae; algae culture; antioxidant activity; antioxidants; ascorbic acid; bioactive compounds; biomass production; cations; gallic acid; glucose; median effective concentration; quality control
Abstract:
... The purpose of this study was to investigate the effect of variation of different cultivation mode (autotrophic, mixotrophic and heterotrophic) on biomass productivity, cellular composition and in vitro antioxidant activities of Parachlorella kessleri GB1. The biomass productivity at mixotrophic (M20 using 20 g/L glucose and light) and heterotrophic (H20 using 20 g/L glucose) conditions were highe ...
DOI:
10.1016/j.lwt.2019.05.103

17. Antidiabetic studies of Chaetomorpha antennina extract using experimental models

Author:
P. S. Unnikrishnan; M. A. Jayasri
Source:
Journal of applied phycology 2017 v.29 no.2 pp. 1047-1056
ISSN:
0921-8971
Subject:
2,2-diphenyl-1-picrylhydrazyl; Chaetomorpha; alanine transaminase; algae; alpha-amylase; alpha-glucosidase; animal disease models; antioxidant activity; ascorbic acid; aspartate transaminase; blood glucose; blood serum; cholesterol; coasts; diabetes; erythrocytes; gas chromatography-mass spectrometry; glibenclamide; glycemic effect; in vivo studies; inhibitory concentration 50; macrophages; metabolites; mice; rats; solvents; streptozotocin; toxicity; triacylglycerols; India
Abstract:
... Chaetomorpha antennina is a marine green alga found abundantly on the southern coast of India. This study explores the efficacy of C. antennina extracts in the management of diabetes using in vitro and in vivo models. The algal metabolites were extracted using various solvents and evaluated for inhibitory effect against key metabolic enzymes involved in blood sugar management and antioxidant prope ...
DOI:
10.1007/s10811-016-0991-4

18. Ascorbic acid affects short-term response of Scenedesmus quadricauda to cadmium excess

Author:
Jozef Kováčik; Bořivoj Klejdus; Petr Babula; Josef Hedbavny
Source:
Algal research 2017 v.24 pp. 354-359
ISSN:
2211-9264
Subject:
Scenedesmus quadricauda; algae; ascorbate peroxidase; ascorbic acid; cadmium; catalase; enzyme activity; fermentation; fluorescence; glutathione; lycorine; malic acid; superoxide dismutase; thiols
Abstract:
... Impact of ascorbate biosynthetic inhibitor (lycorine, LYC) on short-term cadmium (Cd) action (1h, 100μM) was studied in the green alga Scenedesmus quadricauda with 1h or 24h of LYC co-application. LYC suppressed Cd-induced increase in ascorbic acid and enhanced oxidative symptoms (ROS fluorescence) by modulating activities of antioxidative enzymes after 24h of addition (decrease in superoxide dism ...
DOI:
10.1016/j.algal.2017.04.026

19. Effects of brown algal phlorotannins and ascorbic acid on the physiochemical properties of minced fish (Pagrosomus major) during freeze–thaw cycles

Author:
Tiantian Wang; Zhenxing Li; Nasha Mi; Fangzhou Yuan; Long Zou; Hong Lin; Tushar Pavase
Source:
International journal of food science & technology 2017 v.52 no.3 pp. 706-713
ISSN:
0950-5423
Subject:
Ca2-transporting ATPase; algae; antioxidants; ascorbic acid; cold storage; cooking quality; freeze-thaw cycles; lipids; minced fish; muscles; oxidation; protein denaturation; snapper; temperature
Abstract:
... The quality loss in fish during freeze–thaw cycles is considered one of the major issues caused mainly by temperature fluctuations during cold storage. The present work is aimed to illustrate the effects of brown algal phlorotannins (BAP) and ascorbic acid (AA) on physiochemical properties of minced snapper muscle through different freeze–thaw cycles. Both AA and BAP could retard lipid and protein ...
DOI:
10.1111/ijfs.13325

20. Nutritional profiling of Pyropia acanthophora var. robusta (Bangiales, Rhodophyta) from Indian waters

Author:
Monica Gajanan Kavale; Mudassar Anisoddin Kazi; Nived Sreenadhan; P Murgan
Source:
Journal of applied phycology 2017 v.29 no.4 pp. 2013-2020
ISSN:
0921-8971
Subject:
Acanthophora; Pyropia; algae; ascorbic acid; biodiversity; coasts; dietary fiber; dietary supplements; fatty acid composition; ingredients; iron; lipid content; magnesium; minerals; monsoon season; new variety; nutrient content; pigments; polyunsaturated fatty acids; potassium; protein content; proximate composition; sodium; India
Abstract:
... Genus Pyropia is one of the nutritionally rich marine algae. Among Indian Pyropia species, Pyropia acanthophora has been documented as a new addition with its new variety robusta. Biodiversity assessment revealed that P. acanthophora var. robusta reported only on the central west coast of India during monsoon (June to September). The nutritional composition of the collected samples was evaluated f ...
DOI:
10.1007/s10811-017-1096-4