详细信息
产核酸和乳糖酶的热带假丝酵母QZN0209培养条件研究
Studies on culture conditions of nucleic acid-producing and lactase-producing Candida tropicalis QZN0209
文献类型:期刊文献
中文题名:产核酸和乳糖酶的热带假丝酵母QZN0209培养条件研究
英文题名:Studies on culture conditions of nucleic acid-producing and lactase-producing Candida tropicalis QZN0209
作者:周震[1];邱蔚然[1];闫蓬勃[2]
机构:[1]华东理工大学生物反应器工程国家重点实验室,上海200237;[2]上海秋之友生物科技有限公司,上海200090
年份:2002
卷号:32
期号:3
起止页码:28
中文期刊名:工业微生物
外文期刊名:Industrial Microbiology
收录:北大核心:【北大核心2000】;CSCD:【CSCD2011_2012】;
语种:中文
中文关键词:核酸;乳糖酶;热带假丝酵母;QZN0209;培养条件
外文关键词:Candida tropicalis; ribonucleic acid; lactase
摘要:经筛选得到一株具有一定核酸含量和乳糖酶活力的热带假丝酵母(Candida tropicalis)QZN0209,以综合利用酵母为目的,通过着重优化该菌株产核酸的培养条件,将其摇瓶产核酸水平从4.16%提高至13.94%;同时改变乳糖诱导方法将其乳糖酶活力提高约4倍,达到10.56ONPG单位/g湿菌体。
The fermentation conditions of Candida tropicalis QZN0209 producing nucleic acid and lactase were studied. The yield of nucleic acid was increased from 4.16% to 13.94 % by optimization of its fermentative medium and main parameters such as inoculation and feeding. And the lactase productivity was improved by adding lactose after logarithm phase in fermentation to10.56 ONPG units/g(wt.)
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