食品科学 ›› 2007, Vol. 28 ›› Issue (8): 244-247.
• 生物工程 • 上一篇 下一篇
陈功, 王联结
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CHEN Gong, WANG Lian-Jie
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摘要: 以聚乙烯醇(PVA)和阴离子交换树脂混合制成的生物膜作为固定化酵母载体进行酒精发酵的研究,结果表明:发酵的最适条件为pH5.0,温度30℃,多次批量发酵时,酒精最高生成量可达5.74g/100ml,残糖为0.36g/100ml。进行流速为20ml/h的连续发酵20d,发酵稳定后酒精含量保持在5.50g/100ml左右。
关键词: 聚乙烯醇, 固定化酵母, 酒精发酵
Abstract: Ethanol fermentation using biomembrane which was made by polyvinyl alcohol (PVA) and anion exchange resin as carrier of immobilized yeast was studied. The result showed that: the optimum conditions of fermentation was pH5.0, temperature 30 ℃. While batch fermentation repeated in several times, the highest ethanol concentration could achieve 5.74 g/100ml, the remaining sugar was 0.36 g/100ml. When continuous fermentation last 20 days at the flow-rate of 20 ml/h, the ethanol concentration kept at 5.50 g/100ml after the fermentation was steady.
Key words: polyvinyl alcohol, immobilized yeast, ethanol fermentation
陈功, 王联结. PVA膜固定化酵母发酵酒精的研究[J]. 食品科学, 2007, 28(8): 244-247.
CHEN Gong, WANG Lian-Jie. Study on Ethanol Fermentation by Immobilized Yeast using PVA Membrane[J]. FOOD SCIENCE, 2007, 28(8): 244-247.
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