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核农学报  2013 

五种花生抗氧化肽体外抗氧化活性比较

DOI: 10.11869/hnxb.2013.08.1162

Keywords: Viscozyme,L,蛋白酶,花生抗氧化肽,抗氧化活性

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Abstract:

以花生蛋白粉为原料,采用ViscozymeL预水解,再分别用Alcalase、Flavourzyme、Protamex、中性蛋白酶和木瓜蛋白酶水解法制备5种花生抗氧化肽,依次简写为AP、FP、PP1、NP和PP2。应用4类体外抗氧化试验:清除DPPH自由基、还原力、铁离子螯合力和抗脂质体过氧化能力,研究了5种抗氧化肽的抗氧化活性。通过综合分析抗氧化活性试验结果,5种抗氧化肽的抗氧化活性大小为PP2>AP>FP>PP1>NP。PP2有最大的清除DPPH自由基活性、还原力和抗脂质体过氧化能力,表明制备抗氧化肽的最佳蛋白分解酶是木瓜蛋白酶。因此,使用木瓜蛋白酶研究和开发抗氧化肽是一种有效地进一步利用花生蛋白的方法。

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