| 正交旋转回归试验优化木糖醇发酵培养基 |
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| 引用本文： | 曾健智,张厚瑞,方宏,何成新,陈海珊.正交旋转回归试验优化木糖醇发酵培养基[J].食品与发酵工业,2002,28(3):14-16. |
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| 作者姓名： | 曾健智 张厚瑞 方宏 何成新 陈海珊 |
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| 作者单位： | 广西植物研究所,桂林,541006 |
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| 基金项目： | 广西自然科学基金资助项目 (No .98110 15) |
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| 摘 要： | 利用旋转回归法研究热带假丝酵母 (Candidatropicalis)木糖醇发酵的 2个因素 :葡萄糖和酵母膏用量对木糖醇转化率的影响 ,根据木糖醇转化率依葡萄糖和酵母膏用量的回归方程分析表明 ,培养基中添加葡萄糖能提高木糖醇产物转化率 ,而酵母膏对提高产物转化率的作用不显著。研究同时表明 ,添加葡萄糖后能降低培养基中酵母膏的使用量 ,节约成本。根据回归方程寻优得出 :当木糖质量浓度 13 0 g/L时 ,葡萄糖用量 14 2 6g/L ,酵母膏用量3 40 g/L时 ,由木糖生成木糖醇的产物转化率最高
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| 关 键 词： | 木糖醇 发酵 培养基优化 |
| 修稿时间： | 2001年6月22日 |
Optimization of the Xylitol Fermentation Media by the Quadratic Rotary Combination Design |
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| Zeng Jianzhi Zhang Hourui Fang Hong,He Chengxin,Chen Haishan.Optimization of the Xylitol Fermentation Media by the Quadratic Rotary Combination Design[J].Food and Fermentation Industries,2002,28(3):14-16. |
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| Authors: | Zeng Jianzhi Zhang Hourui Fang Hong He Chengxin Chen Haishan |
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| Abstract: | With the quadratic design,analyzed the two factors-glucose and yeast extract which play a part in xylitol fermentation by Candida tropicalis, and established a formula that the xylitol yield was determined by glucose and yeast extract Regression analysis showed that glucose is a marked factor to increase the xylitol production rate,but it is not the same for yeast extract Adding glucose is a effective way which can reduce the amount of yeast extract, and the cost of production The suitable glucose and yeast extract amount acquiring the maximum yield is 14 26g and 3 40g/L respectively. |
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| Keywords: | xylitol fermentation process optimization of medium |
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