THE EFFECTS OF MIXING ON BIOPROCESSES - CONCENTRATION DISTRIBUTIONS AND MECHANICAL SHEAR-STRESS
THE EFFECTS OF MIXING ON BIOPROCESSES - CONCENTRATION DISTRIBUTIONS AND MECHANICAL SHEAR-STRESS
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DOI：
10.1007/bf00369401
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发表时间：
1993-10-01
期刊：
影响因子：
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通讯作者：
FERRAIOLO, G
中科院分区：
文献类型：
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作者：
CONVERTI, A;SOMMARIVA, C;FERRAIOLO, G
研究了混合对淀粉水解物稀溶液分批酒精发酵的影响。在反应器中不同位置并在不同反应时间后同时抽取的有限数量的样品的结果已用于简单的数学模型中，以提供反应环境内的浓度分布图。发酵的最佳混合条件满足在转速1.7至5.0 s-1之间，而随着该参数的增加，发酵液的均匀性明显无限增加。这表明。生物质存在剪切应力，其影响增加。与应用时间有关，似乎主要在发酵结束时影响该过程。
The effects of mixing on batch alcohol fermentation of diluted solutions of starch hydrolysate is studied. The results of a limited number of samples simultaneously drawn at different locations in the reactor and after different reaction times have been used in a simple mathematical model to provide a, picture of the concentration distributions within the reaction environment. The optimal mixing conditions for the fermentation are met at rotation speeds between 1.7 and 5.0 s-1, while the broth homogeneity obviously increases indefinitely with increasing this parameter. This suggests. the existence of a shear stress for the biomass, whose effect increases. with the application time and seems to affect the process mainly at the end of the fermentation.