Document Detail

Enrichment of wheat bran by Rhodotorula gracilis through solid-state fermentation.
MedLine Citation:
PMID:  1668748     Owner:  NLM     Status:  MEDLINE    
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.
Z Jacob
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Folia microbiologica     Volume:  36     ISSN:  0015-5632     ISO Abbreviation:  Folia Microbiol. (Praha)     Publication Date:  1991  
Date Detail:
Created Date:  1992-12-01     Completed Date:  1992-12-01     Revised Date:  2005-11-17    
Medline Journal Info:
Nlm Unique ID:  0376757     Medline TA:  Folia Microbiol (Praha)     Country:  CZECHOSLOVAKIA    
Other Details:
Languages:  eng     Pagination:  86-91     Citation Subset:  IM    
Fermentation Technology and Bioengineering Discipline, Central Food Technological Research Institute, Mysore, India.
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MeSH Terms
Carbohydrate Metabolism
Culture Media
Dietary Fiber / metabolism*
Fatty Acids / metabolism
Food Technology
Food, Fortified
Lipids / biosynthesis
Mycology / methods
Oils / metabolism
Rhodotorula / growth & development,  metabolism*
Reg. No./Substance:
0/Culture Media; 0/Fatty Acids; 0/Lipids; 0/Oils

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