| 固定化酵母用于白酒丢糟降解液乙醇发酵的研究 |
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| 引用本文： | 吴正云,杨耀宗,邓宇,张文学.固定化酵母用于白酒丢糟降解液乙醇发酵的研究[J].酿酒科技,2011(10):87-89,92. |
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| 作者姓名： | 吴正云 杨耀宗 邓宇 张文学 |
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| 作者单位： | 1. 四川大学轻纺与食品学院,四川成都,610065
2. 农业部沼气研究所,四川成都,610041 |
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| 基金项目： | 农业部沼气研究所开放基金项目(2009002); 国家科技部国际合作项目(2009DFA60890) |
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| 摘 要： | 为了提高白酒生产中废弃物的资源化利用效率,探讨了利用固定化酵母实现丢糟降解液连续发酵生产乙醇的工艺。采用固定化的LR3.1300酵母菌株(Saccharomyces sp)进行丢糟降解液的批次和连续乙醇发酵试验。批次发酵试验结果显示,固定化酵母在白酒糟降解液与葡萄糖混合液中发酵的底物利用和产酒效率都较高。在固定化酵母连续发酵中,当固定化酵母液为60 mL,降解糖液进料速度为15 mL/h时,还原糖利用率为83.7%,流出液酒精度达到了3.97%vol,乙醇发酵的效率与前期的游离酵母发酵相比提高了43%。
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| 关 键 词： | 白酒丢糟 固定化酵母 酒精发酵 连续发酵 |
Research on Ethanol Production from the Hydrolyzate of Spent Grains by Using Immobilized Saccharomyces |
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| WU Zhengyun,YANG Yaozong,DENG Yu , ZHANG Wenxue.Research on Ethanol Production from the Hydrolyzate of Spent Grains by Using Immobilized Saccharomyces[J].Liquor-making Science & Technology,2011(10):87-89,92. |
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| Authors: | WU Zhengyun YANG Yaozong DENG Yu ZHANG Wenxue |
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| Affiliation: | WU Zhengyun1,YANG Yaozong1,DENG Yu2 and ZHANG Wenxue1 (1.Department of Food Engineering,College of Light Industry and Food Engineering,Sichuan University,Chengdu,Sichuan 610065,2.Biogas Institute of Ministry of Agriculture,Sichuan 610041,China) |
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| Abstract: | To enhance the utilization efficiency of the byproduct from liquor production,the application of immobilized yeast to achieve continuous ethanol fermentation from the hydrolyzate of spent grains was investigated.Immobilized yeast strain1300(Saccharomyces sp.)was used in batch and continuous ethanol fermentation from the hydrolyzate of spent grains.The batch fermentation results showed that both substrate utility and ethanol productivity were higher when diluted hydrolyzate of spent grains mixed with glucose... |
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| Keywords: | spent grains immobilized yeast ethanol fermentation continuous fermentation |
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