daes in L ow-w ater O rg anic So lv ents[J].Biotechnol Biochem,1991,14:12～20
[6] Bro o s J,Ar ends R,Dijk G B,et al.Enha ncement o f Po ly phe no lo xidase Activity by M acro cycles in th e O xi-da tio n o f p-Cresol in O rg anic So lv ents[J].J Chem Soc,Perk in Trans,1996,1:1415～1417
Study on Hydroxylation Reaction Catalyzed by Polyphenoloxidase
in Nonaqueous Media
YOU De-lin1,CAO Shu-gui1,M A Lin2
(http://www.77cn.com.cnboratory of Enzyme Engineering,Jilin University,Changchun130021,China;
2.Department of Applied Chemistry,Zhongshan University,Guangzhou510275,China)
Abstract:Besides in nonaqueous enzymo logy,po lypheno loxidase can a lso be used in analy tical chemistry as the enzy me electrode to identify pheno ls and cyanide,etc.The poly pheno loxidase inhibito rs are w idely used in industries o f cosmo tics a nd fo od.Po lyphenoloxidase can change L-tyro sin into L-Do PA,a routine m edicine fo r Pakinson’s disease.Ty roso nase has the cha racter of or tho-hydrox ylatio n on benzene ring,so it has g rea t sig nificance in o rganic synthesis.Owing to its impo rta nce in medicine,the cata lytic conv er-sio ns of p-creso l to4-methyl catechol and ca techols to4-methy l-1,2-benzoquinone w ere intensively stud-ied.In this w ork,w e used a chemical metho d to reduce4-methy l-1,2-benzo quinone to4-methyl ca techol, and to optimize the reactio n co nditio ns o f catecho l sy nthesis ca taly zed by immobilized enzyme.The yield of 4-methyl catecho l cataly zed by immo bilized enzyme is55.8%.
Key words:Nonaqueous media;Poly phenolo xida se;4-Methy l catecho l
国内化学类科技期刊影响因子排序
期刊名称影响因子期刊名称影响因子
分析化学0.915电化学0.370
分析试验室0.779化学学报0.340
高等学校化学学报0.641色谱0.293
分析科学学报0.613分子催化0.265
催化学报0.522应用化学0.236
化学通报0.519感光科学与光化学0.230
高分子学报0.511结构化学0.222
高分子通报0.471Chin J Po ly m Sci0.217
环境化学0.464化学试剂0.207
分析测试学报0.399有机化学0.196
燃料化学学报0.386Chin Chem L ett0.147
无机化学学报0.381分子科学学报0.109
物理化学学报0.371化学研究与应用0.090
数据来源:中国科学技术信息研究所《1999年度中国科技期刊引证报告》
214分 子 催 化 第15卷