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Ethanol production from whey with immobilized living yeast

✍ Scribed by Yu-Yen Linko; Hannele Jalanka; P. Linko

Publisher: Springer Netherlands
Year: 1981
Tongue: English
Weight: 341 KB
Volume: 3
Category: Article
ISSN: 0141-5492
DOI: 10.1007/bf00127392

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✦ Synopsis

Living KZhyveromyces fragilis yeast cells were succesfully entrapped in calcium alginate gel beads at cell loadings of 4 to 16 g yeast (0.8 to 3.2 g d.m.) per 1 g of sodium alginate. In batch systems, about 90 % conversion in 48 h was obtained both with free and immobilized yeast using demineralized whey of 5 to i0 % lactose content as substrate. In continuous packed-bed column operation nearly a constant 2 Z oroduct ethanol concentration could be maintained at 5 % substrate lactose level for at least one month.

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