کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1987817 1540302 2009 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation of different molecular weight polysaccharides from Porphyridium cruentum and their antioxidant activities
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Preparation of different molecular weight polysaccharides from Porphyridium cruentum and their antioxidant activities
چکیده انگلیسی

Hermetical microwave was used to degrade Porphyridium cruentum polysaccharides from 2918 to 256.2, 60.66 and 6.55 kDa. The antioxidant properties of different molecular weight polysaccharides were evaluated by determining the scavenging ability of free radicals, inhibitory effects on lipid peroxidation in liver homogenates and hemolysis of mouse erythrocytes. Analysis of physicochemical properties confirmed that microwave degradation might not markedly change the chemical components of the polysaccharides. High-molecular-weight polysaccharides from P. cruentum had no obvious antioxidant activity, but low-molecular-weight fragments after degradation exerted an inhibitory effect on oxidative damage. The 6.55-kDa fragment had stronger antioxidant activity than the 60.66 and 256-kDa fragments.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 45, Issue 1, 1 July 2009, Pages 42–47
نویسندگان
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