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高效发酵木糖重组酵母菌株YPH499-CZ发酵条件研究 被引量:1

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摘要 目的对能够高效利用木糖发酵生产乙醇的重组酵母菌株YPH499-CZ发酵培养条件进行优化。方法通过单因素实验优化发酵条件,考察多种营养元素以及培养温度、发酵培养基起始pH值因素对重组酵母菌株发酵木糖产生乙醇的影响。结果在木糖发酵培养基中添加氯化钙和硫酸铵能不同程度提高发酵产乙醇的效率,添加磷酸二氢钠效果不显著,添加肌醇和植酸钠在一定浓度范围内可提高重组菌株发酵效率,最佳发酵温度30℃,最佳起始pH为5.5。结论添加一定营养盐可提高重组酵母菌株发酵效率。
作者 齐小强 崔哲
出处 《中国现代医生》 2010年第15期11-12,17,共3页 China Modern Doctor
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