| 絮凝颗粒酵母连续发酵生产酒精新工艺的研究 |
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| 引用本文： | 白凤武 史今兰. 絮凝颗粒酵母连续发酵生产酒精新工艺的研究[J]. 食品与发酵工业, 1993, 0(6): 8-11 |
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| 作者姓名： | 白凤武 史今兰 |
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| 作者单位： | 大连理工大学化学研究院(白凤武，冯朴荪)，大连酿酒厂(史今兰)，大连酿酒厂(吕松云) |
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| 摘 要： | 本文以酵母细胞自身絮凝形成颗粒作为固定化细胞方法,建立了单釜有效容积0.5m~2、二釜串联的中试装置。以淀粉糖化液为底物,采用末级反应器连续补糖的工艺方案,在平均稀释率为0.10h~(-1)的操作条件下连续稳定运转近一个月。当淀粉糖化液总糖浓度为180～200g/L时,反应器中絮凝颗粒酵母浓度控制在30～40g(d·w)/L范围内,终点发酵液中酒精浓度达到85g/L左右,残余总糖降至5g/L以下,计算出反应器的平均设备生产强度为8.4gEtOH/1·h。
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| 关 键 词： | 淀粉糖化液 絮凝颗粒酵母 酒精连续发酵 |
Continuous Fermentation for Ethanol Production Using Yeast Floc Particles |
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| Bai Fengwu Feng Pusun Shi Jinlan Lu Songyun. Continuous Fermentation for Ethanol Production Using Yeast Floc Particles[J]. Food and Fermentation Industries, 1993, 0(6): 8-11 |
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| Authors: | Bai Fengwu Feng Pusun Shi Jinlan Lu Songyun |
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| Abstract: | Based on the bench scale experiment results using yeast floe particles to produce ethanol from saccharified solution of starch,a pilot plant of two suspended-bed bioreactors in series with a total column volumn of 1.0m3 was set up and had been operated about one month without disruption. The SBB was driven by air and a limit oxygen was supplied,in which the floes concentration of 30-40g(d. w)/L was maintained. As a result,it was confirmed that fermentation effluent contained more than 10% (V)ethanol and less than 0. 5%(W/V) total sugar was obtained. The average productivity was 8. 4g EtOH/L·h. |
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| Keywords: | Saccharified solution east floes Continuous ethanol fermentation |
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