湿度对库尔勒香梨锈斑酶活性的影响研究

Study on enzyme activity of Korla pear rust in different atmosphere humidity

研究了不同的气调贮藏湿度下库尔勒香梨锈斑形成过程中多酚氧化酶、过氧化物酶、苯丙氨酸解氨酶活性及总酚含量的变化。结果表明:湿度越大,越易产生锈斑,多酚氧化酶、过氧化物酶、苯丙氨酸解氨酶活性越高,总酚含量下降越快。说明多酚氧化酶、过氧化物酶、苯丙氨酸解氨酶活性与库尔勒香梨锈斑的形成呈正相关性,总酚含量与库尔勒香梨锈斑的形成呈负相关性。

The different atmosphere storage humidity during the formation of Kofla fragrant pear rust polyphenol oxidase,peroxidase,phenylalanine ammonia-lyase activity and total phenolic content changes were studied. The results showed that.the higher humidity,the more easy to produce rust spots,polyphenol oxidase, peroxidase,phenylalanine ammonia-lyase activity in the higher,the faster decline in the total phenol content. The polyphenol oxidase,peroxidase,phenylalanine ammonia-lyase activity and the formation of Korla fragrant pear rust was positively correlated,total phenol content and the formation of Korla fragrant pear rust was negatively correlated.