%0 Journal Article
%T Factors of Laccase Producing and Fermentation Conditions by A New White-rot Fungus AH28-2<br>影响白腐真菌AH28-2菌株漆酶合成的因子和发酵条件
%A Y Z Xiao
%A M Zhang
%A J Wu
%A Y P Wang
%A J Hang
%A W Y Zeng
%A Y Y Shi
%A <br>肖亚中
%A 张敏
%A 吴涓
%A 王怡平
%A 杭俊
%A 曾王勇
%A 施蕴渝
%J 生物工程学报
%D 2001
%I 
%X White-rot fungus AH28-2, a newly isolated strain, produced effectively laccase by induction when grown on a synthetic medium. Aromatic compounds of low molecular weight had an inducing influence on laccase production and its isoenzyme compositions. The using of o-toluidine or syringic acid had the best inducing effect. Cu2+ concentration in medium had distinguished effect on laccase production. Enzyme activity was notably increased by Cu2+ and reached the maximum when Cu2+ final concentration was 5 mumol/L. Mn2+ inhibited the synthesis of laccase. Carbon and nitrogen limitation were not beneficial to laccase synthesis, while high nutrient organic medium was beneficial to the growth of cell and the synthesis of laccase. Using cellobiose as the sole carbon source, the highest level enzyme activity reached 82,923. 7 u/L under the condition of optimum fermentation with ABTS as substrate. This enzyme activity was 2.9-fold higher compared to the reported data on international references in recent years.
%K white\|rot fungus AH28\|2
%K laccase
%K fermentation conditions<br>白腐真菌
%K AH28－2菌株
%K 漆酶
%K 发酵条件
%K 合成
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=A66E90C274451689E69F6F0291467824&aid=51454B17464A5591&yid=14E7EF987E4155E6&vid=BCA2697F357F2001&iid=94C357A881DFC066&sid=57EA20F731155703&eid=7882A2973AA04DE8&journal_id=1000-3061&journal_name=生物工程学报&referenced_num=12&reference_num=15