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。
The properties of polyphenol oxidase extracted from aloe were investigated in this paper.
研究了芦荟多酚氧化酶的基本性质。
The activity of polyphenol oxidase and content of tannin were sensitive to the storage cut;
多酚氧化酶活性和单宁含量对伤害也很敏感；
Taken O-Methoxyphenol as the substrate, the polyphenol oxidase activity was determined by the spectrophotometry.
多酚氧化酶活性测定是用邻甲氧基苯酚为底物，用分光光度法测定。
There is a relationship on soil polyphenol oxidase betweenforming of soil organic matter and medium of forming humus.
土壤多酚氧化酶与土壤有机质的形成有关，是腐殖化的一种媒介。
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。
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。
The extracts from HPLC could react with polyphenol oxidase purified partially from betelnut and result in browning products.
其分部收集液能与已部分纯化的多酚氧化酶相互作用，形成褐变产物；
The enzymes activities of carboxymethyl cellulase, hemicellulase, polyphenol oxidase, guaiacol oxidase, and laccase were studied.
研究了羧甲基纤维素酶、半纤维素酶、多酚氧化酶、愈创木酚氧化酶和漆酶的酶活性变化。
In this paper, the characteristics of Polyphenol Oxidase 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的特性及褐变的控制方法。
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。
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。
The distribution of the total polyphenolic content in tne different parts of the pear fruit is similar to that of polyphenol oxidase activity.
总的多酚类化合物的含量，在梨果实中不同部位的分布与多酚氧化酶活性相似。
The application of BSW and RSW significantly increased the activity of plant peroxidase whereas the plant polyphenol oxidase was high in BSW only.
BSW和RSW能显著增加植物过氧化酶，而BSW处理中植物多酚氧化酶含量较高；
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。
Results of enzymatic oxidation showed that the highest content of theaflavins (15.05%) was formed at 80 minutes fermentation with polyphenol oxidase.
酶促氧化结果表明，发酵80分钟时，茶黄素的生成量最高(为15.05%)。
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。
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 KH2PO4 treatment also increased activities of peroxidase and polyphenol oxidase, and respiratory intensity, and chlorophy11 content in leaves as compared with the control.
KH2PO4处理还明显提高了甘蔗叶片的过氧化物酶、多酚氧化酶活性、呼吸强度和叶绿素含量。
The activities of sucrase, urease, catalase, cellulolytic enzyme and polyphenol oxidase of the former three treatments were all significantly higher than in the cleaning tillage.
前三处理蔗糖酶、脲酶、过氧化氢酶、纤维分解酶、多酚氧化酶的酶活性都较清耕有显著或极显著提高；
The substrate of persimmon enzymatic Browning and the characteristics of polyphenol oxidase and peroxidase participate in persimmon enzymatic Browning were researched in part one.
第一部分主要研究了柿子酶促褐变的底物和参与柿子酶促褐变的多酚氧化酶和过氧化物酶的特性。
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。
Totally, soil catalase and polyphenol oxidase activity increased, while soil urease activity declined in deeper soil, the extent were different among temperatures and litter types.
随着土壤深度增加，土壤过氧化氢酶和多酚氧化酶活性增大，而脲酶活性降低。
The physiological and biochemical determination revealed that respiratory rate, carbohydrate contents and polyphenol oxidase activity changed regularly during the root regeneration.
生理生化测定显示：呼吸强度、碳水化合物含量、多酚氧化酶活性与根的再生过程相关，呈现规律性变化。
Activity of catalase, polyphenol oxidase and peroxidase tendenced similarly in lake sediments, and there was a significantly positive correlation between oxidoreductase and hydrolase.
过氧化物酶、多酚氧化酶和过氧化氢酶活性与沉积物有机质均呈极显著正相关。
Yam puree was treated with pressure, temperature and browning inhibitors in single or/and complex combination, the polyphenol oxidase activity and color change in Yam puree were assayed.
本文采用超高压、温度和酶抑制剂单独和复合处理山药泥，对山药泥中多酚氧化酶活性和色泽变化进行了研究。
The limewater treatment increased the contents of water soluble protein and carotenoid, but decreased the content of water, and the activities of peroxidase and polyphenol oxidase in leaves.
石灰水处理提高叶片水溶性蛋白质和类胡萝卜素含量，而使水分含量和过氧化物酶、多酚氧化酶活性降低。
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。
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。
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