| 固定化酵母直接发酵甜菜汁生产燃料乙醇的研究 |
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| 引用本文： | 王治业,杨晖,赵小锋,郭琪.固定化酵母直接发酵甜菜汁生产燃料乙醇的研究[J].中国酿造,2012,31(8):61-62. |
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| 作者姓名： | 王治业 杨晖 赵小锋 郭琪 |
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| 作者单位： | 甘肃省科学院生物研究所,甘肃兰州73000;甘肃省工业微生物工程技术研究中心,甘肃兰州73000 |
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| 基金项目： | 甘肃省科技支撑计划项目（No：0804NKCA085） |
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| 摘 要： | 为了简化发酵工艺、缩短发酵时间、提高发酵效率,采用聚乙烯醇凝胶作为包埋剂进行酵母固定形成固定化酵母产品,并将其直接发酵甜菜汁进行燃料乙醇生产技术研究,结果表明,固定化后的酿酒酵母接种量为15％时,甜菜发酵液中酒精含量最高,达到9.41％vol,其他接种量都有所降低.利用固定化酵母进行甜菜酒精发酵比对照组酒精平均值提高了2.86％.连续9批次发酵且期间不进行灭菌处理,产酒稳定.因此,利用固定化酵母直接发酵甜菜汁生产燃料乙醇是可行的.
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| 关 键 词： | 固定化酵母 甜菜 燃料乙醇 |
Ethanol fermentation from sugar beet with immobilized yeast |
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| WANG Zhiye
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YANG Hui
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ZHAO Xiaofeng
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GUO Qi.Ethanol fermentation from sugar beet with immobilized yeast[J].China Brewing,2012,31(8):61-62. |
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| Authors: | WANG Zhiye YANG Hui ZHAO Xiaofeng GUO Qi |
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| Affiliation: | 1.Institute of Biology, Gansu Academy of Sciences, Lanzhou 730000, China; 2.Industrial Microbiology Engineering Research Center in Gansu, Lanzhou 730000, China) |
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| Abstract: | In order to improve the fermentation process, yeast were immobilized by polyvingyl alcohol to evaluate the ethanol production from sugar beet. The results showed that the highest concentration of ethanol （9.41%vol） was obtained when immobilized Saccharomyces cerevisiae amount was 15%. The average content of ethanol by immobilized yeast was 2.86% higher than that of the control. It was stable after 9 batch fermentations without sterilization, which indicated that immobilization of yeast is feasible to produce ethanol from sugar beet. |
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| Keywords: | immobilized yeast sugar beet fuel ethanol |
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