文献类型：期刊文献

英文题名：In Vitro Antioxidant Activity and In Vivo Anti-fatigue Effects of Oyster (Ostrea plicatula Gmelin) Peptides Prepared Using Neutral Proteinase

作者：Hao, Gengxin[1,2,3];Cao, Wenhong[4,5];Hao, Jiming[4,5];Zhang, Chaohua[4,5]

机构：[1]Chinese Acad Sci, South China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China;[2]Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China;[3]Jimei Univ, Coll Biol Engn, Xiamen 361021, Peoples R China;[4]Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China;[5]Guangdong Prov Key Lab Aquat Prod Proc & Safety, Zhanjiang 524088, Peoples R China

年份：2013

卷号：19

期号：4

起止页码：623

外文期刊名：FOOD SCIENCE AND TECHNOLOGY RESEARCH

收录：SCI-EXPANDED(收录号：WOS:000322937600014)、、WOS

基金：This project was supported by the Earmarked Fund for Modern Agro-industry Technology Research System of China (CARS-48) and the Li Shangda Fund of Jimei University (ZC2011016).

语种：英文

外文关键词：oyster peptides; antioxidant activity; anti-fatigue effect; endurance exercise

外文摘要：The amino acid profile of oyster (Ostrea plicatula Gmelin) peptides (OP) was assayed. Its in vitro antioxidant activity was determined, and its in vivo anti-fatigue activity was compared with those of oyster meat and oyster protein. Seven amino acids that may play an important role in enhancing antioxidant activity account for 25.8% of total OP content. These amino acids are histidine, proline, methionine, cysteine, tyrosine, tryptophan, and phenylalanine. The F-value of OP was 4.89, and the concentration of taurine was 45.43 mmol/mL. OP acted as a scavenger for hydroxyl radicals, 1,1-diphenyl-2-picrylhydrazyl, and superoxide anion radicals. It also inhibited lipid peroxidation. The intragastric administration of OP prolonged the swimming time to exhaustion of mice by 78% over that of the control. It decreased the levels of serum lactic acid and blood urea nitrogen by 24.8% and 11.2%, respectively. Finally, it increased the levels of liver glycogen (1.0-fold) and gastrocnemius muscle glycogen (55.6%).