金针菇酶促褐变的区域分布及调控  

Compartmentation distribution and regulation of enzymicbrowning in Flammulina velutipes

作　　者：庄荣福[1] 蔡龙祥[1] 吴金珠 胡维冀[1] 黄维南[1] 

机构地区：[1]福建省亚热带植物研究所,福建厦门361006 [2]福建省亚热植物研究所,福建厦门361006

出　　处：《亚热带植物通讯》1999年第2期24-28,共5页

摘　　要：金针菇的多酚氧化酶（ＰＰＯ）、过氧化物酶（ＰＯＤ）和过氧化氢酶（ＣＡＴ）活性在全株中呈现区域化分布。菌盖的酶活性最低，菌柄上部酶活性稍高，菌柄中部较高，菌柄下部活性最高。用硫脲、亚硫酸盐、ＣａＣｌ２、低ＣＯ２、低温等方法处理金针菇，对以上三种酶的活性均有抑制作用。高０２、Ｈ２Ｏ２和温度的提高均促进三种酶活性。高Ｎ２（减压后充Ｎ２）不能抑制三种酶活性。The compartmentation distribution of polyphenol oxidase (PPO), peroxidase(POD) and catalase (CAT) activities in Flammulina velutipes appeared. The activitylevels were the lowest at the cap, high at the top of stipe, higher at the middleof stipe, and the highest at the bottom of stipe. Flammulina velutipes were treatedwith thiourea, sodium sulfite, Ca2+, and at high CO2, low O2 and low temperature,the activities of PPO, POD and CAT were inhibited. High 02, H202 and high temperatureenhanced the activities of PPO, POD and CAT. High N2 could not inhibit the activitiesof them.

关 键 词：金针菇 酶促褐变 调控 酶活性区域分布 

分 类 号：S646.190.4[农业科学—蔬菜学]