| 产核酸和乳糖酶的热带假丝酵母QZN0209培养条件研究 |
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| 引用本文： | 周震,邱蔚然,闫蓬勃.产核酸和乳糖酶的热带假丝酵母QZN0209培养条件研究[J].工业微生物,2002,32(3):28-32. |
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| 作者姓名： | 周震 邱蔚然 闫蓬勃 |
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| 作者单位： | 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 |
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| 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。
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| 关 键 词： | 核酸 乳糖酶 热带假丝酵母 QZN0209 培养条件 |
Studies on culture conditions of nucleic acid-producing and lactase-producing Candida tropicalis QZN0209 |
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| ZHOU Zhen,QIU Wei-ran,YAN Peng-bo.Studies on culture conditions of nucleic acid-producing and lactase-producing Candida tropicalis QZN0209[J].Industrial Microbiology,2002,32(3):28-32. |
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| Authors: | ZHOU Zhen QIU Wei-ran YAN Peng-bo |
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| Abstract: | 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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| Keywords: | Candida tropicalis ribonucleic acid lactase |
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