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- 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
- https://doi.org/10.1016/j.algal.2022.102642
- 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
- https://doi.org/10.1007/s11274-021-03099-y
- 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:
- 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
- https://doi.org/10.1007/s10811-018-1475-5
- 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
- https://doi.org/10.1016/j.algal.2018.07.007
- 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
- https://doi.org/10.1016/j.marpolbul.2019.02.059
- 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
- https://doi.org/10.18343/jipi.24.3.267
- 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
- https://doi.org/10.1016/j.lwt.2019.05.103
- 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
- https://doi.org/10.1007/s10811-016-0991-4
- Author:
- Ranko Gacesa; Karl P. Lawrence; Nikolaos D. Georgakopoulos; Kazuo Yabe; Walter C. Dunlap; David J. Barlow; Geoffrey Wells; Antony R. Young; Paul F. Long
- Source:
- Biochimie 2018 v.154 pp. 35-44
- ISSN:
- 0300-9084
- Subject:
- 2,2-diphenyl-1-picrylhydrazyl; Cyanobacteria; algae; amino acids; antagonism; antagonists; antioxidant activity; antioxidants; ascorbic acid; drug therapy; fibroblasts; fluorescence; free radicals; gene expression; hydrogen; messenger RNA; metabolites; oxidative stress; proteins; screening; transcription (genetics)
- Abstract:
- ... Mycosporine-like amino acids (MAAs) are UVR-absorbing metabolites typically produced by cyanobacteria and marine algae, but their properties are not limited to direct sun screening protection. Herein, we examine the antioxidant activities of porphyra-334 and shinorine and demonstrate that these MAAs are prospective activators of the cytoprotective Keap1-Nrf2 pathway. The ability of porphyra-334 an ...
- DOI:
- 10.1016/j.biochi.2018.07.020
- PubMed:
- 30071261
- PubMed Central:
- PMC6214812
- https://doi.org/10.1016/j.biochi.2018.07.020
- Author:
- Christ W. Shapumba; Michael Knott; Petrina Kapewangolo
- Source:
- Journal of food science and technology 2017 v.54 no.10 pp. 3370-3373
- ISSN:
- 0022-1155
- Subject:
- 2,2-diphenyl-1-picrylhydrazyl; Plocamium; absorbance; algae; antioxidant activity; ascorbic acid; hydrogen peroxide; inhibitory concentration 50; monoterpenoids; nitric oxide
- Abstract:
- ... The antioxidant potential of various marine natural products is well documented. The aim of this study was to evaluate the antioxidant potential of a rare halogenated monoterpene, namely; 1E,3R,4S,5E,7Z-1-bromo-3,4,8-trichloro-7-(dichloromethyl)-3-methylocta-1,5,7-triene (1) for the first time. This compound was isolated from a Namibian red algal Plocamium species. The antioxidant activity of the ...
- DOI:
- 10.1007/s13197-017-2784-4
- PubMed:
- 28974823
- PubMed Central:
- PMC5602997
- https://doi.org/10.1007/s13197-017-2784-4
- Author:
- T. Kopta; R. Pokluda; B. Marsalek
- Source:
- Acta horticulturae 2016 no.1123 pp. 47-52
- ISSN:
- 0567-7572
- Subject:
- Lactuca sativa var. capitata; aerial parts; algae; antioxidant activity; ascorbic acid; autumn; bacteria; cadmium; carotenoids; copper; cutting; green leafy vegetables; lead; leaves; minerals; nutritive value; parsley; plant growth; planting; summer; zinc
- Abstract:
- ... Plant growth promoting substances produced by bacteria and algae were tested in this experiment. The aim of this study was to determine the effect of an algae and bacteria preparation on the nutritional parameters of curly leaf parsley ('Rina') and iceberg lettuce ('Diamantinas') planted in 2013. The algae and bacteria preparation was applied by watering every 14 days. Above ground parts of plants ...
- DOI:
- 10.17660/ActaHortic.2016.1123.7
- https://doi.org/10.17660/ActaHortic.2016.1123.7
- Author:
- Bajguz, Andrzej
- Source:
- Environmental and experimental botany 2010 v.68 no.2 pp. 175-179
- ISSN:
- 0098-8472
- Subject:
- exogenous sources; ascorbate peroxidase; heavy metals; lead; algae; application rate; glutathione; in vitro culture; cadmium; brassinolide; chemical concentration; water pollution; copper; superoxide dismutase; abiotic stress; antioxidant activity; enzyme activity; ascorbic acid; plant stress; glutathione-disulfide reductase; catalase; Chlorella vulgaris
- Abstract:
- ... A concentration-dependent increase in activity of antioxidant enzymes (catalase, ascorbate peroxidase, glutathione reductase, ssuperoxide dismutase) and the level of total ascorbate and reduced glutathione have been observed in the green alga Chlorella vulgaris following heavy metals exposure. It was arranged in the following order: copper>lead>cadmium. It was also found that brassinolide activate ...
- DOI:
- 10.1016/j.envexpbot.2009.11.003
- https://doi.org/10.1016/j.envexpbot.2009.11.003
- Author:
- Lim, Byung-Lak; Ryu, Il-Hwan
- Source:
- Journal of medicinal food 2009 v.12 no.2 pp. 442-451
- ISSN:
- 1096-620X
- Subject:
- Gloiopeltis; nuclear magnetic resonance spectroscopy; sulfates; algae; galactose; chemical reactions; medicinal plants; plant extracts; mannose; chemical structure; free radical scavengers; beta-carotene; dosage; Fourier transform infrared spectroscopy; medicinal properties; antioxidant activity; fucose; ascorbic acid
- DOI:
- 10.1089/jmf.2007.0688
- PubMed:
- 19459750
- https://doi.org/10.1089/jmf.2007.0688
- Author:
- Lee, Sun Hee; Kang, Hae Jin; Lee, Hye-Jin; Kang, Myung-Hee; Park, Yoo Kyoung
- Source:
- Nutrition 2010 v.26 no.2 pp. 175-183
- ISSN:
- 0899-9007
- Subject:
- DNA damage; algae; lipid peroxidation; alpha-tocopherol; DNA repair; dietary supplements; health foods; oxidative stress; smoking (habit); men; superoxide dismutase; enzyme activity; antioxidant activity; lifestyle; Koreans; ascorbic acid; nutritional status; catalase; free radical scavengers; randomized clinical trials; Chlorella vulgaris; South Korea
- Abstract:
- ... Objective: Chlorella vulgaris is a popular food supplement in Asia and is currently marketed as a nutritional supplement. However, available scientific studies do not support its effectiveness for preventing or treating any disease in humans. Because Chlorella contains numerous nutrients, including antioxidants, it is thought to exert antioxidative functions by scavenging free radicals created by ...
- DOI:
- 10.1016/j.nut.2009.03.010
- PubMed:
- 19660910
- https://doi.org/10.1016/j.nut.2009.03.010