中国食品添加剂Issue(1)：160-163,4.
不同抑制剂对澳洲青苹中多酚氧化酶活性的影响
The influences of different inhibitors on polyphenoloxidase activity in granny smith apple
摘要
Abstract
Polyphenol oxidase activities of Granny Smith apple were determined at 420nm with pyrocatechol as substrate by spectrophotometry.In this paper, the effect of anti - browning inhibitors - NaHSO3, ascorbic acid and citric acid,which could inhibit Granny Smith PPO activities, were particularly studied.Through orthogonal test, the optimum mixed inhibitor of Polyphenol oxidase was obtained.The experiment results showed that adding 50mg/kgNaHSO3 or 125mg/kg ascorbic acid or 600mg/kg citric acid in the reaction systems could inhibit PPO activities effectively in Granny Smith apple.Of the three inhibitors, NaHSO3had the most effect on PPO, the inhibition rate was up to 78.58％.The best mixed inhibitors of Polyphenol oxidase was adding 25mg/kgNaHSO3 and 125mg/kg ascorbic acid and 600mg/kg citric acid in the reaction systems.The effect of mixed inhibitors of Polyphenol oxidase was evident, and the inhibition rate of PPO activity could reach to 90.09％.关键词
澳洲青苹/多酚氧化酶/活性/抑制剂分类
轻工纺织引用本文复制引用
李佩艳,刘建学,徐宝成,罗登林,仇农学..不同抑制剂对澳洲青苹中多酚氧化酶活性的影响[J].中国食品添加剂,2011,(1):160-163,4.基金项目
河南科技大学大学生研究训练计划(SRTP)项目 （SRTP）
河南科技大学人才科学研究基金. （）
