多酚氧化酶活性和单宁含量对伤害也很敏感；
The activity of polyphenol oxidase and content of tannin were sensitive to the storage cut;
土壤养分（N）缺乏，酚积累，最终导致多酚氧化酶活性增强。
Nitrogen absence results in phenol accumulation which results in an increase in the activity of phenolase.
随退化程度的加大，土壤蔗糖酶、脲酶、多酚氧化酶活性均降低。
With the increase of the greasing intensity, the activity of soil sucrose, unease and polyphone oxidize all decrease.
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。
Taken O-Methoxyphenol as the substrate, the polyphenol oxidase activity was determined by the spectrophotometry.
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 distribution of the total polyphenolic content in tne different parts of the pear fruit is similar to that of polyphenol oxidase activity.
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。
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.
纯化后的酶液经聚丙烯酰胺凝胶电泳，分别采用银染色和多酚氧化酶活性染色均显示一条电泳带。
The result from polyacrylamide gel electrophoresis of purified enzyme indicated that only one band was found using silver stain and PPO activity stain, respectively.
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 KH2PO4 treatment also increased activities of peroxidase and polyphenol oxidase, and respiratory intensity, and chlorophy11 content in leaves as compared with the control.
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。
The physiological and biochemical determination revealed that respiratory rate, carbohydrate contents and polyphenol oxidase activity changed regularly during the root regeneration.
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 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.
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。
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.
结果表明，所选用的各种化学抑制剂均具有一定的抑制苦杏仁多酚氧化酶活性的效果，在试验范围内呈量效关系；
The results show that all the inhibitors chosen had good inhibitions on the PPO activity within the conditions tested, and there was a good relationship between the dose and its effect.
甘蔗在贮藏过程中蔗糖转化酶和多酚氧化酶活性不断提高，滴定酸、酒精和还原糖含量逐渐增加，而蔗糖和可溶性总糖含量逐渐减少。
During storage, activities of sucrose invertases and PPO increased gradually, titratable acid, alcohol and reducing sugar contents increased, while sucrose and soluble sugar contents decreased.
多酚氧化酶与茶叶加工密切相关，不同的茶叶类型需要不同的多酚氧化酶活性，如加工红茶的品种需要较高的酶活性，而生产绿茶则希望有低的酶活性。
Thepolyphenol oxidases, as are well known, play vital roles in tea processing, e. g. high enzymatic activity is in favor of black tea while low enzymatic activitybenefits green tea.
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。
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.
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。
The activity of polyphenol oxidase (PPO) inlactuca sativa var. angustata was analyzed using heat treatment method to control its enzymatic browning.
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 activities of sucrase, urease, catalase, cellulolytic enzyme and polyphenol oxidase of the former three treatments were all significantly higher than in the cleaning tillage.
本文对荔枝壳中多酚氧化酶(PPO)的活性及不同抑制剂的抑制效果进行研究。
The activity of PPO of lichi hull and the control effect for different inhibitor were studied in this paper.
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。
Taking burgeon and stem of Parakmeria omeiensis Cheng as test materials, polyphenol oxidase(PPO), total phenol content, and seasonal change law were studied.
随着保压时间的延长和温度的升高，桃汁中多酚氧化酶相对活性逐渐降低。
The activity of PPO in the juice decreased gradually with the rise of heating temperature and the extension of pressure holding time.
本研究测定了199个小麦品种全麦粉的小麦多酚氧化酶(ppo)活性及全麦粉中的多酚含量，进一步探讨了PPO活性测定方法。
In this study, 199 wheat varieties were measured to determine their variation in PPO activity and the polyphenol content. The method of polyphenol activity was also discussed.
盾叶薯蓣细胞与内生真菌re0105共培养第二代的性状与POD、PPO和PAL活性和过氧化物酶、多酚氧化酶、酯酶同工酶谱带与第一代相比比较稳定。
The second generation callus of co-culture of cell and RE0105 was stable in culture character, POD, PPO and PAL activities and isoenzyme bands of POD, PPO, EST.
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。
Activity of catalase, polyphenol oxidase and peroxidase tendenced similarly in lake sediments, and there was a significantly positive correlation between oxidoreductase and hydrolase.
目的研究鲜榨梨汁中多酚氧化酶的活性受高压和热协同处理的影响。
Objective To study the effect of high pressure alone or combined with heating treatment of fresh pear juice on PPO activity in it.
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。
The enzymes activities of carboxymethyl cellulase, hemicellulase, polyphenol oxidase, guaiacol oxidase, and laccase were studied.
本文研究了峨眉拟单性木兰的群落特征、组培技术、嫁接技术、多酚氧化酶（PPO）活性和总酚含量。
This article studied the community characteristics, tissue culture, grafting, PPO activity and total phenols content.
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 activity of resistance-related enzymes, such as phenylalanine ammonia-lyase (PAL), polyphenol oxidase (PPO) and peroxidase (POD) were higher than that of control.
不同时期叶面喷施硼酸降低了梨果石细胞含量，果实过氧化物酶、多酚氧化酶和苯丙氨酸解氨酶活性也低于对照，且幼果期处理效果最佳。
The contents of sclereid and activities of some enzymes, such as POD, PPO and PAL are decreased under the applications of H3BO3, and the effect of the application at young fruit stage is the best.
结果表明，喷施水杨酸抑制了过氧化物酶（POD）、多酚氧化酶（PPO）、苯丙氨酸解氨酶（PAL）活性，降低了石细胞的大小、密度和含量。
The results showed that POD, PPO and PAL activities were inhibited and the stone cell density , diameter and contents were decreased in the treatment of SA spraying;
结果表明，喷施水杨酸抑制了过氧化物酶（POD）、多酚氧化酶（PPO）、苯丙氨酸解氨酶（PAL）活性，降低了石细胞的大小、密度和含量。
The results showed that POD, PPO and PAL activities were inhibited and the stone cell density , diameter and contents were decreased in the treatment of SA spraying;
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