pH对黄背木耳胞外酶的影响效应  

Effects of pH Value on the Extracellular Enzymes of Auricularia pannosa

作　　者：马桂珍[1] 杨生兵[1] 林曼曼[1] 周婷[1] 

机构地区：[1]淮海工学院食品工程学院,江苏连云港222005

出　　处：《北方园艺》2011年第17期190-191,共2页Northern Horticulture

摘　　要：以黄木耳为试材,研究了黄木耳在自然和环境胁迫下相关酶活性的变化规律。结果表明:邻苯二酚氧化酶、淀粉酶和羧甲基纤维素酶都与黄背木耳菌丝生长情况相一致,酶活力强时,菌丝生物量高。当黄背木耳在受到pH胁迫时,酸性条件会抑制邻苯二酚氧化酶、淀粉酶的产生;羧甲基纤维素酶的产生有很宽的酸碱适应范围,碱性条件能在一定程度上促进该酶的产生,温度对羧甲基纤维素酶的影响很小。Using Auricularia pannosa as test material,the pH value on the extracellular enzymes of Auricularia pannosa under nature and stress of pH were studied.The results showed that catechol oxidase,amylase and CMC enzyme were tightly related with the growth of Auricularia pannosa.When enzyme had high activity,the biomass of mycelium was high.And when Auricularia pannosa was under the stress of pH,the acid condition will suppress the production of catechol oxidase and amylase.The production of CMC enzyme had a wider range of pH tolerance,the alkaline condition will promote the production of the enzyme to some extent and the temperature had little influence on the CMC enzyme.

关 键 词：黄背木耳 胞外酶 活性 

分 类 号：S646.6[农业科学—蔬菜学]