Antioxidant Activity of Selenium-rich Cordyceps militaris

doi:10.7506/spkx1002-6630-201023015

FOOD SCIENCE ›› 2010, Vol. 31 ›› Issue (23): 61-64.doi: 10.7506/spkx1002-6630-201023015

• Basic Research • Previous Articles Next Articles

Antioxidant Activity of Selenium-rich Cordyceps militaris

LI Hua-wei1，ZHAO Su-yun2，TIE Mei2,*

1. College of Chemistry and Life Sciences, Shenyang Normal University, Shenyang 110034, China；
2. School of Environmental Science, Liaoning University, Shenyang 110036, China

Received:2010-09-21 Online:2010-12-15 Published:2010-12-29
Contact: TIE Mei2,* E-mail:tiemei07@yahoo.cn

Abstract

Abstract:

In this study, selenium polysaccharide and selenium protein were extracted from selenium-rich Cordyceps militaris by modern separation techniques. The contents of selenium, polysaccharide and protein in Se-polysaccharide and Se-protein were determined by ICP-MS, phenol-sulfuric acid method and Coomassie brilliant blue method. In addition, the scavenging capabilities of Se-polysaccharide and Se-protein on hydroxyl free radicals were evaluated by the absorbance at 510 nm in Fenton system. Results indicated that the scavenging activities of Se-polysaccharide and Se-protein were obvious higher than those of inorganic selenium, polysaccharide and protein under the same condition. The highest scavenging rates of Se-polysaccharide and Seprotein were 38.02% and 75.00%, respectively.

Key words: Cordyceps militaris, Se-polysaccharide, Se-protein, Fenton system, hydroxyl free radical

CLC Number:

S567.3

LI Hua-wei1，ZHAO Su-yun2，TIE Mei2,*. Antioxidant Activity of Selenium-rich Cordyceps militaris[J]. FOOD SCIENCE, 2010, 31(23): 61-64.

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Antioxidant Activity of Selenium-rich Cordyceps militaris

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