| 稀土元素对谷氨酸发酵产酸及其谷氨酸脱氢酶的影响 |
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| 引用本文： | 王燕,杨平平,宋香,鄢贵龙,段作营,毛忠贵.稀土元素对谷氨酸发酵产酸及其谷氨酸脱氢酶的影响[J].食品与发酵工业,2004,30(9):33-36. |
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| 作者姓名： | 王燕 杨平平 宋香 鄢贵龙 段作营 毛忠贵 |
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| 作者单位： | 1. 山东轻工业学院,食品工程系,济南,250100;江南大学生物工程学院工业生物技术教育部重点实验室,无锡,214036
2. 江南大学生物工程学院工业生物技术教育部重点实验室,无锡,214036 |
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| 摘 要： | 以目前我国谷氨酸发酵广泛使用的谷氨酸棒杆菌S9114 为实验菌株 ,研究了稀土元素对谷氨酸发酵产酸及其谷氨酸脱氢酶的影响。结果表明LaCl3、CeCl3和NdCl3浓度分别为 0 72 0、0 0 71和 0 0 0 7mmol/L时 ,促使谷氨酸发酵产酸水平提高 6%～ 8% ,对菌体的GDH NADPH的酶活性有显著的激活作用。实验还表明 ,稀土元素对纯化GDH NADPH的活性也有一定的调节作用
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| 关 键 词： | 稀土元素 谷氨酸 谷氨酸棒杆菌 谷氨酸发酵 谷氨酸脱氢酶 |
| 修稿时间： | 2004年5月25日 |
The Effects of Rare Earth Element(REE) on Glutamic Acid Fermentation and Glutamate Dehydrogenase (GDH) of Corynebacterium glutamicum S9114 |
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| Wang Yan , Yang Pingping Song Xiang Yan Guilong Duan Zuoying Mao Zhonggui.The Effects of Rare Earth Element(REE) on Glutamic Acid Fermentation and Glutamate Dehydrogenase (GDH) of Corynebacterium glutamicum S9114[J].Food and Fermentation Industries,2004,30(9):33-36. |
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| Authors: | Wang Yan Yang Pingping Song Xiang Yan Guilong Duan Zuoying Mao Zhonggui |
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| Affiliation: | Wang Yan 1,2 Yang Pingping 2 Song Xiang 2 Yan Guilong 2 Duan Zuoying 2 Mao Zhonggui 2 1 |
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| Abstract: | The effects of rare earth element(REE) on glutamic acid fermentation and glutamate dehydrogenase (GDH) of Corynebacterium glutamicum S 9114, the most commonly used strain in glutamic acid fermentation, were investigated. This study showed that glutamic acid yield of Corynebacterium glutamicum S 9114 increased by 6%～8% and glutamate dehydrogenase activity increased significantly when LaCl 3, CeCl 3 and NdCl 3 were added at 0.720, 0.071, 0.007?mmol/L. The effect of REE on activity of the GDH for NADPH-dependent purified from Corynebacterium glutamicum S 9114 was also studied. |
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| Keywords: | rare earth element glutamic acid Corynebacterium glutamicum glutamic acid fermentation glutamate dehydrogenase |
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