| 外循环气升式发酵罐液相循环时间及其应用于α—淀粉酶发酵的研究 |
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| 引用本文： | 郑裕国,汪钊,陈小龙.外循环气升式发酵罐液相循环时间及其应用于α—淀粉酶发酵的研究[J].中国食品学报,1998(1):17-21. |
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| 作者姓名： | 郑裕国 汪钊 陈小龙 |
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| 作者单位： | 浙江工业大学轻工系 310014 |
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| 摘 要： | 对10L外循环气升式发酵罐的液相循环时间进行了研究,在此基础上,进行了α—淀粉酶发酵试验,并与10L机械搅拌发酵罐进行比较,实验结果得到,气升式发酵罐的最高酶活力为432.3u/ml,机械搅拌发酵罐的最高酶活力为397.2u/ml,从中可以看出,本文研制的外循环气升式发酵罐的发酵结果优于机械搅拌发酵罐。因此,外循环气升式发酵罐用于α—淀粉酶的发酵生产具有较好的前景。
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| 关 键 词： | 发酵罐 α—淀粉酶 枯草杆菌 |
Study on the Liquid Circulation Time of an External-loop Air-lift Fermenter and Its Application to a-Amylase Fermentation |
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| Zheng Yuguo,Wang Zhao,Chen Xiaolong.Study on the Liquid Circulation Time of an External-loop Air-lift Fermenter and Its Application to a-Amylase Fermentation[J].Journal of Chinese Institute of Food Science and Technology,1998(1):17-21. |
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| Authors: | Zheng Yuguo Wang Zhao Chen Xiaolong |
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| Abstract: | The liquid circulation time of a 10L external - loop air - lift fermenter was investigated. Based on this, the comparative experiments of (a -amylase fermentation were carried out in the 10L external - loop air - lift fermenter and in a 10L mechanically agitated fermenter, respectively. The results showed that the (a - amylase activity could be 432. 3 u/ml in the external -loop air -lift fermenter, 397. 2 u/ml in the mechanically agitated fermenter. Therefore, the external -loop air -lift fermenter has good properties for (a-amylase fermentation. |
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| Keywords: | External -loop air-lift fermenter (a-amylase Bacillus subtilis |
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