| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8333565 | International Journal of Biological Macromolecules | 2013 | 5 Pages |
Abstract
Four polysaccharides (BLF80-A, BLF80-B, BLF80-C and BLF80-D) were isolated by hot-water extraction and purified from the leaves of Herba Lophatheri by DEAE-Sepharose fast flow. Their chemical and physical characteristics were determined and antioxidant activities were investigated on the basis of DPPH radical assay, hydroxyl radical assay and superoxide radical assay. The results showed that four polysaccharides exhibited antioxidant activities in a concentration-dependent manner, and the higher molecular weight, the stronger antioxidant activities of polysaccharides. Besides, the monosaccharide compositions of polysaccharides also influence their antioxidant activities. BLP80-D showed the strongest scavenging ability, followed by BLP80-C, BLP80-B and BLP80-A.
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Authors
Qing Ge, Jian-wei Mao, Xiao-qing Guo, Yi-feng Zhou, Jing-yan Gong, Shuang-rong Mao,