固定化增殖酵母工业应用的研究——Ⅲ.PVA固定化细胞生产乙醇工业小试  

A RESEARCH ON IMMOBILIZED GROWING YEAST USED IN INDUSTRIAL PRODUCTION——Ⅲ. A Report on Small Industrial Scale Experiment on Alcoholic Production By PVA Immobilized Cell System

作　　者：马子骏[1] 邓学箴[1] 周剑平[1] 姚惠芬 芦洪英 路等学[1] 

机构地区：[1]甘肃省科学院生物研究所,兰州730000

出　　处：《甘肃科学学报》1992年第1期40-45,共6页Journal of Gansu Sciences

摘　　要：本文是PVA固定化细胞在35升X2串联柱式生物反应器中进行糖蜜发酵生产乙醇的工业小试报告。工业小试表明:PVA载体填充量与固定化细胞生产乙醇能力不呈正比关系,而通氧则是保证固定化细胞正常发酵的必要条件。在连续发酵中,PVA固定化细胞乙醇生产能力可达到16.7克/升胶·小时和2.2克/升罐·小时,分别是传统发酵乙醇生产能力的8.4倍和1.6倍。发酵周期分别缩短为24小时(以生物反应器有效容积计算)和3.2小时(以PVA载体有效容积计算),约是传统发酵方法的1/2和1/14。采用PVA固定化细胞发酵新工艺可增加乙醇产量80％,生产成本亦可明显降低。This paper deals with the small industrial scale experiment on alcoholic production of molasses by PVA immobilized cell system. A double-column bioreactor system with a capacity of 35 liters was used. The experimental results showed that in the batch fermentation, the alcohol productivity did not positively correlated with the packing of PVA gel , but oxygenation is the necessary condition for the normal fermentation by growing immobilized yeast. In the continuous fermentation process,the alcohol productivity was at the level of 16- 7 g/1 gel, hr and 2. 2g/l jar. hr, which is 8-4times and 1.6 times as high as that in traditional fermentation process respectively. The fermentation cycle was shortened to 24 hours and 3. 2 hours (retained time) respectively, which is 1/2 and 1/14 as long as that in traditional fermentation process. It was estimated that the use of the new technique of immobilized cell can raise production efficiency by 80%.

关 键 词：固定化细胞 酵母 发酵工艺 乙醇 

分 类 号：TQ926[轻工技术与工程—发酵工程]