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Enrichment of wheat bran by Rhodotorula gracilis through solid-state fermentation.

Jacob, Z. (1991) Enrichment of wheat bran by Rhodotorula gracilis through solid-state fermentation. Folia Microbiologica, 36 (1). pp. 86-91. ISSN 0015-5632

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Abstract

The potential oil-producing yeast Rhodotorula gracilis was found to produce higher yields of biomass (13.7 g/L) and lipids (20.3%) in a nitrogen-limited and economically cheaper medium (molasses without yeast extract) in a submerged fermentation system. But, when the yeast was grown on four different wheat bran media by solid-state fermentation technique, different media combinations affected the percent increase in biomass, protein, oil production, fatty acid profile and degree of saturation and unsaturation. The initial lipid content in the control medium was 3.5% while in a medium with wheat bran, molasses, and minerals it was 69.8%. The yeast did not produce alpha-amylase, amyloglucosidase and cellulolytic enzymes for the breakdown of wheat bran. The yeast produced red carotenoids, a precursor of vitamin B12 and some oligounsaturated fatty acids in the fermented product.

Item Type: Article
Uncontrolled Keywords: Rhodotorula gracilis, wheat bran, solid state fermentation
Subjects: 500 Natural Sciences and Mathematics > 07 Life Sciences > 03 Biochemistry & Molecular Biology > 19 Yeast
600 Technology > 05 Chemical engineering > 04 Fermentation Technology
600 Technology > 08 Food technology > 21 Cereals > 04 Wheat
Divisions: Fermentation Technology and Bioengineering
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 21 Mar 2018 04:06
Last Modified: 21 Mar 2018 04:06
URI: http://ir.cftri.com/id/eprint/2339

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