| 热带假丝酵母发酵生产木糖醇的研究 |
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| 引用本文： | 邓立红,王艳辉,张扬,马润宇.热带假丝酵母发酵生产木糖醇的研究[J].食品与发酵工业,2004,30(9):37-40. |
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| 作者姓名： | 邓立红 王艳辉 张扬 马润宇 |
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| 作者单位： | 北京化工大学生命科学院制药工程系,北京,100029 |
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| 摘 要： | 对热带假丝酵母 (C tropicalis )As2 1 776发酵木糖醇的营养条件进行了初步研究。初始木糖浓度在 80g/L附近时木糖醇转化率较高 ,限制性供氧条件下有利于木糖醇积累。酵母膏和蛋白胨是比较适合产木糖醇的有机氮源 ,而酵母膏更利于酵母细胞生长。培养基中添加 2 g/L的(NH4 ) 2 HPO4 、2～ 6g/L的NaCl、1～ 3g/L的KH2 PO4 、0 1～ 0 3 g/L的MgSO4 ·7H2 O能提高木糖醇的转化率
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| 关 键 词： | 热带假丝酵母 木糖醇 营养条件 |
| 修稿时间： | 2004年3月12日 |
Studies on Xylitol Fermentation by Candida tropicalis |
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| Deng Lihong,Wang Yanhui,Zhang Yang,Ma Runyu.Studies on Xylitol Fermentation by Candida tropicalis[J].Food and Fermentation Industries,2004,30(9):37-40. |
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| Authors: | Deng Lihong Wang Yanhui Zhang Yang Ma Runyu |
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| Abstract: | Nutritional condition for xylitol fermentation by Candida tropicalis As2.1776 was studied.The results showed that xylitol yield increased under conditions of 80 g/L of initial xylose concentration and semi-aerobic condition. Both yeast extract and peptone were the proper organic nitrogen sources while the former was more appropriate to cell growth. Addition of 2 g/L (NH 4) 2HPO 4, 2 ～6 g/L NaCl,1～3 g/L KH 2PO 4, 0.1～0.3 g/L MgSO 4·7H 2O to culture media favored xylitol accumulation. |
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| Keywords: | Candida tropicalis xylitol fermentation nutritional condition |
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