建立了一种测定白桦树皮中白桦脂醇对羟自由基清除率的新方法。
A new method of determining the antioxidant activity of betulin from betula bark is established.
不同水解度的蛋白多肽清除羟自由基能力不同，结果表明水解度5%时，自由基清除率最高可达50.90%。
The different DH of walnuts peptides has different ability to scavenge hydroxyl radicals. The results showed that when DH is 5% the scavenging activity is 50.90%.
摘要 ： 以水解度（DH%）和对DPPH自由基清除率为指标，筛选出制备米糠蛋白抗氧化活性肽的最适蛋白酶。
Abstract : This study screened the most suitable prolease of preparation of bioactive peptide with the indexes of Hydrolysis (DH%) and the eliminating rate of DPPH free radical.
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