期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 72, 期 -, 页码 125-130出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2014.07.046
关键词
Botryosphaeran; Free-radical scavenging; Antioxidant activity
资金
- NSERC-Research Capacity Development (Canada)
- Department of Foreign Affairs and International Trade-Canada/Brazil [2009/10]
- Lakehead University Summer Work Program (SWP)
- Consiglio Nazionale delle Ricerche (Short-Term Mobility Program) [0024301]
beta-D-Glucans are known to present antitumor, anticancer, and anti-inflammatory activities that are influenced by their own antioxidant capacity. The antioxidant activity of botryosphaeran, an exopolysaccharide of the (1 -> 3;1 -> 6)-beta-D-glucan type produced by the Bodyosphaeria rhodina MAMB-05was evaluated and compared to some other beta-D-glucans (lasiodiplodan an exocellular (1 -> 6)-beta-D-glucan from Lasiodiplodia theobromae, laminarin and curdlan), and oligosaccharides, disaccharides, and monosaccharides in a study of scavenging activities of free radicals in-vitro. Botryosphaeran displayed high total antioxidant activity (80%) as well as good scavenging activity against hydroxyl radical (90.6%), superoxide anion (37%), hydrogen peroxide (38%), and nitric oxide radical (90%). No reducing power, metal-chelating capacity or inhibition of lipid peroxidation was observed for these beta-D-glucans. The results demonstrated that botryosphaeran exhibited effective antioxidant activity as supported by many different assays, suggesting that this beta-D-glucan may serve as a source of a new bioactive compound with effective antioxidant activity. (C) 2014 Elsevier B.V. All rights reserved.
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