大连民族学院学报
大連民族學院學報
대련민족학원학보
JOURNAL OF DALIAN UNIVERSITY FOR NATIONAL MINORITIES
2014年
5期
502-507
,共6页
张艳梅%洪坤强%王剑锋%范圣第%韩梦凡%张亚芳%曹雪杰
張豔梅%洪坤彊%王劍鋒%範聖第%韓夢凡%張亞芳%曹雪傑
장염매%홍곤강%왕검봉%범골제%한몽범%장아방%조설걸
环氧水解酶%介孔材料%Foam%FDU%固载%手性拆分
環氧水解酶%介孔材料%Foam%FDU%固載%手性拆分
배양수해매%개공재료%Foam%FDU%고재%수성탁분
epoxide hydrolase%mesoporous silica%Foam%FDU%immobilization%chiral resolution
从绿豆中提取粗酶并优化,活性测定反应条件,结果表明,在40℃、pH=7的条件下,酶反应活性最高。将来源于绿豆的环氧水解酶固载于多种硅基介孔材料上,考察了多种因素对固定化酶活性的影响。研究发现,以大孔径、表面疏水性的材料作为载体,采用共价方法固载酶,可以得到较高的酶固载率,同时固载酶表现出较高的催化反应活性,并且可以循环使用多次。
從綠豆中提取粗酶併優化,活性測定反應條件,結果錶明,在40℃、pH=7的條件下,酶反應活性最高。將來源于綠豆的環氧水解酶固載于多種硅基介孔材料上,攷察瞭多種因素對固定化酶活性的影響。研究髮現,以大孔徑、錶麵疏水性的材料作為載體,採用共價方法固載酶,可以得到較高的酶固載率,同時固載酶錶現齣較高的催化反應活性,併且可以循環使用多次。
종록두중제취조매병우화,활성측정반응조건,결과표명,재40℃、pH=7적조건하,매반응활성최고。장래원우록두적배양수해매고재우다충규기개공재료상,고찰료다충인소대고정화매활성적영향。연구발현,이대공경、표면소수성적재료작위재체,채용공개방법고재매,가이득도교고적매고재솔,동시고재매표현출교고적최화반응활성,병차가이순배사용다차。
In this paper, rude epoxide hydrolase was prepared from mung beans and then the re-action conditions were optimized. The results showed that the optimum temperature is 40℃ and the optimum pH is 7. 0. Then several kinds of mesoporous silicas (MPSs) were used to immobi-lize enzyme to enhance its chemical and mechanical stabilities. The results indicated that materi-als with large pore size, hydrophobic surface gave higher immobilization efficiency and activity. Furthermore, covalent method resulted in higher stability and the solid enzyme can be reused.