摘要
选用一种阳离子絮凝剂甲壳素对E .coli10 8发酵液进行处理 ,并改进渗透压提取青霉素酰化酶的方法 ,使酶活的提取率达到了 96 .4 % ,降低了能耗 ,酶的比活力达到 6 .4 9× 10 -6mol·min-1·mg-1。
Fermented solution from E.coli108 was processed with flocculating agents and Penicillin acylase was extracted by improved osmotic shock method. The total recovery was 96.4% and the specific activity of crude was 6.49×10 -6 mol·min -1 ·mg -1 .
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2002年第1期69-71,共3页
Journal of Hebei Agricultural University
基金
河北省教委资助项目 (9730 1)