摘要
对冬枣果实的多酚氧化酶(PPO)的性质进行了研究,分别就酚类物质、PPO的底物专一性、pH值与底物浓度对PPO活性的影响进行探讨。结果表明,多酚氧化酶有一个最适pH值,为7.0;PPO的最适天然底物是没食子酸。
The property of polyphenol oxidase (PPO) in jujube cultivars 'Dongzao' was studied, including phenols, specificity on substrates of PPO and effects of pH and concentration of substrate on PPO activity. It was showed the Dongzao jujube cultivar had an optimum pH range,the value is 7.0. The optimum native substrate of PPO in 'Dongzao' was gallate.
出处
《中国农学通报》
CSCD
2004年第4期97-98,134,共3页
Chinese Agricultural Science Bulletin
基金
国家计委重点科技攻关项目"经济林产品贮藏保鲜加工技术研究"(项目编号:G01)
