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KMID : 0545119910010030207
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Journal of Microbiology and Biotechnology
1991 Volume.1 No. 3 p.207 ~ p.211
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The Growth, Effect of COD-Reduction, and Flocculatin Characteristics of Candida rugosa in Sugar Beet Stillages
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Lee Ki-Young
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Abstract
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Yeast fermentation at 40℃ was conducted for microbial protein production and COD reduction in three different sugar beet stillages by a thermo- and add-tolerant yeast Candida rugosa isolated from East Africa. The assimilation proceedings of some main components such as protein, carbohydrate, total titrable acids and glycerol in stillages were observed with growth kinetics of the yeast. Most of glycerol and organic acids were rapidly assimilated at the beginning of the fermentation. Protein assimilation was slowly accelerated with the proceeding of fermentation time and its assimilation rate reached only 14.2%-28.4%. Though Candida rugosa was a flocculent yeast, the flocculation characteristics of the yeasts grown in three stillages were different from each other.
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