Ethanol fermentation of a diluted molasses medium by Saccharomyces cerevisiae immobilized on chrysotile

Brazilian Archives of Biology and Technology

Ranulfo Monte Alegre²  Maurício Rigo²  Inés Joekes¹ 

[1] ,UNICAMP Faculdade de Engenharia de Alimentos Campinas SP ,Brazil

关键词: Alcoholic continuous fermentations;    alcoholic batch fermentations;    immobilized yeast;    chrysotile;    ethanol;   

DOI  :  10.1590/S1516-89132003000400031

来源: SciELO

【 摘 要 】

In this work, the catalytic role of chrysotile support on the acceleration of alcoholic fermentation under non-aseptic conditions by Saccharomyces cerevisiae was investigated. The fermentation medium employed consisted only of diluted sugar-cane molasses. In the batch fermentations process with immobilized yeasts, the initial rate of CO2 production increased roughly 27 % during the first 30 minutes, compared to systems containing no chrysotile. A study of continuous alcoholic fermentation with chrysotile in the reactor bed showed a higher ethanol production rate at the different dilution rates investigated compared to similar fermentations without chrysotile.

【 授权许可】

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