Enzymatic preparation of antioxidant peptides from rice protein and identification of antioxidant peptides

LI Jia-nan; WANG Jing; ZHANG Hui-juan; LI Ying-ying; LIU Ying-li; PANG Xiao-yi; JIANG Guo-qing

doi:10.13386/j.issn1002-0306.2013.23.080

LI Jia-nan, WANG Jing, ZHANG Hui-juan, LI Ying-ying, LIU Ying-li, PANG Xiao-yi, JIANG Guo-qing. Enzymatic preparation of antioxidant peptides from rice protein and identification of antioxidant peptides[J]. Science and Technology of Food Industry, 2013, (23): 53-57. DOI: 10.13386/j.issn1002-0306.2013.23.080

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Enzymatic preparation of antioxidant peptides from rice protein and identification of antioxidant peptides

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This antioxidant peptides prepared from rice protein hydrolyzed by Alcalase were characterized for their antioxidant properties in vitro reflected by the abilities to scavenge hydrogen peroxide as well as hydroxyl and DPPH free radicals, to chelate iron ions, and to inhibit autooxidation of linoleic acid.The antioxidant peptides were identified to be Met-Pro-Pro-Ser-Ser- Pro- His (376.68u) , Leu- Ala- Gly- Pro- Lys- Phe- Ala- Leu (408.75u) , and Met-Pro-Arg-His-Asp-Pro-Gln (440.70u) by High Definition Mass Spectrometry (HD-MS) .

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Science and Technology of Food Industry

Enzymatic preparation of antioxidant peptides from rice protein and identification of antioxidant peptides

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