The results also showed that the PPO activity of the straw mushroom failed to correspond with the Browning as a result of compartmentation of polyphenol oxidase and its substrates.
草菇在贮藏过程中表现出多酚氧化酶(ppo)活性与褐变程度不一致的现象，这主要是由于PPO与底物区域化分布的结果。
Polyphenol oxidase (PPO) is a ubiquitous copper metalloprotein in the plastids of many plant species, fungi and insects.
多酚氧化酶是一类普遍存在于植物、真菌、昆虫的质体中，由核基因编码能与铜相结合的金属蛋白酶。
The activity of polyphenol oxidase (PPO) inlactuca sativa var. angustata was analyzed using heat treatment method to control its enzymatic browning.
研究了热处理法钝化苔干多酚氧化酶（PPO）活性，从而控制酶促褐变的工艺条件及效果。
Taking burgeon and stem of Parakmeria omeiensis Cheng as test materials, polyphenol oxidase(PPO), total phenol content, and seasonal change law were studied.
以峨眉拟单性木兰嫩枝茎段为测试材料，研究多酚氧化酶（PPO）活性和总酚含量及其季节变化规律。
Peroxidase (POD) and polyphenol oxidase (PPO) play the important roles of longan browning in period of postharvest storage.
多酚氧化酶（PPO）和过氧化物酶（POD）是影响龙眼果实采后果皮褐变的关键酶。
Melanins are produced by polyphenol oxidase (PPO) during sweet potato processing, which can affect the whiteness of sweet potato starch.
甘薯破碎后经多酚氧化酶（ PPO）的作用，严重影响淀粉的白度。
The activity of resistance-related enzymes, such as phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO) and peroxidase (POD) were higher than that of control.
与抗病性相关酶类的活性，如苯丙氨酸解氨酶（PAL）、多酚氧化酶（PPO）活性均高于对照。
The physio-biochemical changes in respiration rate, ethylene production, polyphenol oxidase(PPO) and enzymatic browning of fresh-cut apple(Malus pumila Mill) induced by wounding were investigated.
以鲜切苹果为实验材料，研究了切割伤害诱导呼吸强度、乙烯生成量、酶活性以及酶促褐变的发生及其生理生化变化。
In this paper, the characteristics of Polyphenol Oxidase (PPO) from sweet potato and its control methods were studied by spectrophotometry.
应用分光光度法，研究了甘薯中多酚氧化酶(PPO)的特性及褐变的控制方法。
Polyphenol oxidase (PPO) activity was higher in the early days of grafting.
大苗龄接穗嫁接体的PPO活性较高。
Polyphenol oxidase (PPO) activity was higher in the early days of grafting.
大苗龄接穗嫁接体的PPO活性较高。
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