| 碳源对L-苏氨酸发酵的影响 |
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| 引用本文： | 冯志彬,孙玉华,陈宁,张华,王东阳. 碳源对L-苏氨酸发酵的影响[J]. 食品与发酵工业, 2006, 32(8): 15-17 |
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| 作者姓名： | 冯志彬 孙玉华 陈宁 张华 王东阳 |
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| 作者单位： | 1. 天津科技大学生物工程学院,天津市工业微生物重点实验室,天津,300222
2. 山东鄄城菱花味精股份公司,鄄城,272000 |
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| 摘 要： | 以L-苏氨酸生产菌TRFC为供试菌株,研究了碳源对L-苏氨酸发酵的产量和糖酸转化率的影响。采用补料分批发酵工艺生产L-苏氨酸,利用氨基酸分析仪测定发酵液中L-苏氨酸的产量。确定了发酵的最佳碳源及其补料方式,通过10L罐补料分批发酵36h,产酸可达118.9 g/L,糖酸转化率为47.6%。
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| 关 键 词： | L-苏氨酸 碳源 补料分批发酵 |
| 收稿时间： | 2006-04-29 |
| 修稿时间： | 2006-06-08 |
Effects of Carbon Source on L-Threonine Production |
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| Feng Zhibin,Sun Yuhua,Chen Ning,Zhang Hua,Wang Dongyang. Effects of Carbon Source on L-Threonine Production[J]. Food and Fermentation Industries, 2006, 32(8): 15-17 |
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| Authors: | Feng Zhibin Sun Yuhua Chen Ning Zhang Hua Wang Dongyang |
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| Abstract: | The effects of carbon source on the concentration of L-threonine and conversion rate of glucose were studied with L-threonine production strain TRFC. L-threonine was produced by fed-batch fermention styles,L-threonine fermentation concentration in fermentation broth was determined with the methods of amino acid analysis system.The optimum carbon source and its feeding mode were determined.The productivity of L-threonine was 118.9 g/L in 10-liter fermentor at 36 h,the conversion rate of glucose was 47.6%. |
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| Keywords: | L-threonine carbon source fed-batch fermentation |
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