摘要
考察两种来源于深海酵母的超氧化物歧化酶(SOD-Ⅰ和SOD-Ⅱ)活性以及在不同温度和pH环境下的耐受性。结果表明SOD-Ⅰ的活性为210.4 U/mg,SOD-Ⅱ活性为659.5 U/mg,两种超氧化物歧化酶在25~80℃温度和pH=5~10之间均有出色的表现,其中SOD-Ⅱ在整个测试温度范围内(25~100℃)都保有较高的活性,其对酸碱的耐受性也超出其他动植物来源的该类酶,故SOD-Ⅱ对极端环境的适用能力更强。
To investigate the activity of superoxide dismutase(SOD-Ⅰand SOD-Ⅱ)and their tolerance under different temperature and pH.The results showed that the activity of SOD-Ⅰwas 210.4 U/mg,and that of SOD-Ⅱwas 659.5 U/mg,respectively.The two kinds of superoxide dismutase showed excellent performance at temperature range from 25 to 80℃and pH range from 5 to 10.Under above conditions,SOD-Ⅱmaintained high activities.The acid and base tolerance of SOD-Ⅱis also higher than that of other enzymes from animals and plants,therefore,SOD-Ⅱis more applicable under extreme environment.
作者
叶琳琳
周安坤
Ye Linlin;Zhou Ankun(R&D Department Hangzhou Yayan Cosmetics Co.,Ltd.,Hangzhou 311116,China)
出处
《广东化工》
CAS
2023年第5期35-37,66,共4页
Guangdong Chemical Industry
