کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11011541 | 1802865 | 2019 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Isolation and characterization of an antioxidant exopolysaccharide produced by Bacillus sp. S-1 from Sichuan Pickles
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
It is urgent to explore food-grade EPSs from edible microorganism. In this study, a new type of exopolysaccharide (EPS) secreted by Bacillus sp. S-1 from Sichuan Pickles was isolated and fractioned on anion-exchange and gel-filtration chromatography. As indicated by monosaccharides components analysis, the major component BS-2 mainly consisted of galactose, glucose, and mannose with average molecular weight (Mw) of 1.765âÃâ104 Da. Moreover, the characterization of EPS was investigated by FT-IR and NMR Spectroscopy. In vitro antioxidant activity assay, it proved that the EPSs possessed potent quenching capacities on superoxide, hydroxyl, and DPPH radicals in a dose-dependent way. Furthermore, the major component BS-2 showed potent protection against oxidative injury by inhibiting H2O2-induced apoptosis in RAW264.7 cells. As suggested by the results, BS-2 might serve as a promising antioxidant agent to be applied in nutraceutical and pharmaceutical industries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 204, 15 January 2019, Pages 9-16
Journal: Carbohydrate Polymers - Volume 204, 15 January 2019, Pages 9-16
نویسندگان
Xinyuan Hu, Xin Pang, Peng George Wang, Min Chen,