Citation

Taniguchi, M., Kometani, Y., Tanaka, M., Matsuno, R., and T. Kamikubo, Production of single-cell protein from enzymatic hydrolyzate of rice straw. European Journal of Applied Microbiology and Biotechnology 14: 74-80, 1982.

Abstract

Summary. The components of rice straw, pretreated with sodium chlorite, cellulose and hemicellulose were solubilized with culture filtrate of Pellicularia filamentosa or Trichoderma reesei. The ratio of glucose to total sugar in the solution obtained from the cellulose component with the culture filtrate of Pellicularia filamentosa was approximately twice that of Trichoderma reesei. Ten yeast strains (Candida utilis, C. tropicualis, C. guilliermondii, C. parapsilosis, Torulopsis xylinus, Trichosporon cutaneum, Debaryomyces hansenii, Rhodotorula glutinis, Saccharomyces fragilis and Saccharomyces cerevisiae) were cultivated as test organisms for single-cell protein (SCP) production on sugar solutions obtained from the straw, cellulose and hemicellulose components, pretreated with the culture filtrate of Pellicularia filamentosa. Sugar consumption, in terms of total sugar and cell yield, of the culture with the sugar solution obtained from pretreated straw were: 70% and 6.8g/l for Candida tropicalis, 56% and 6.4g/l for Torulopsis xylinus, 76% and 10.1g/l for Trichosporon cutaneum, and 74% and 7.6g/l for Candida guilliermondii. In addition, the highest consumption with respect to total sugar (87%) and the best dry cell yield (15.6 g/l) were observed with the culture of Trichosporon cutaneum using the sugar solution obtained from the hemicellulose component.

Country, State, District, etc.

Japan

Language

English

Material

rice straw

Use category

chemical production, animal feed, single cell protein, ethanol production