Document Detail


Fatty acid and carotenoid production by Sporobolomyces ruberrimus when using technical glycerol and ammonium sulfate.
MedLine Citation:
PMID:  18156773     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The production of carotenoids, lipid content, and fatty acid composition were all studied in a strain of Sporobolomyces ruberrimus when using different concentrations of technical glycerol as the carbon source and ammonium sulfate as the nitrogen source. The total lipids represented an average of 13% of the dry weight, and the maximum lipids were obtained when using 65.5 g/l technical glycerol (133.63 mg/ g). The optimal conditions for fatty acid production were at 27 degrees C using 20 g of ammonium sulfate and a pH range from 6 to 7, which produced a fatty acid yield of 32.5+/-1 mg/g, including 1.27+/- 0.15 mg of linolenic acid (LNA), 7.50+/-0.45 mg of linoleic acid (LLA), 5.50+/-0.35 mg of palmitic acid (PA), 0.60+/-0.03 mg of palmitoleic acid (PAL), 1.28+/-0.11 mg of stearic acid (SA), 9.09+/-0.22 mg of oleic acid, 2.50+/-0.10 mg of erucic acid (EA), and 4.25+/-0.20 mg of lignoceric acid (LCA), where the palmitic, oleic, and linoleic acids combined formed about 37% of the total fatty acids. The concentration of total carotenoids was 2.80 mg/g when using 20 g of ammonium sulfate, and consisted of torularhodin (2.70 mg/g) and beta-carotene (0.10 mg/ g), at 23 degrees C and pH 6. However, the highest amount with the maximum specific growth rate was obtained (micromax=0.096 h(-1)) with an ammonium sulfate concentration of 30 g/l.
Authors:
Seyed Hadi Razani; Seyed Mohammad Mousavi; Hassan Mehrabani Mehrabanii Yeganeh; Ivan Marc
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of microbiology and biotechnology     Volume:  17     ISSN:  1017-7825     ISO Abbreviation:  J. Microbiol. Biotechnol.     Publication Date:  2007 Oct 
Date Detail:
Created Date:  2007-12-24     Completed Date:  2008-02-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9431852     Medline TA:  J Microbiol Biotechnol     Country:  Korea (South)    
Other Details:
Languages:  eng     Pagination:  1591-7     Citation Subset:  IM    
Affiliation:
Department of Food Science & Engineering, Faculty of Biosystem Engineering, University of Tehran, Karaj, Iran. srazavi@ut.ac.ir
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MeSH Terms
Descriptor/Qualifier:
Ammonium Sulfate / metabolism*
Basidiomycota / chemistry,  growth & development,  metabolism*
Bioreactors
Carotenoids / biosynthesis*
Fatty Acids / analysis,  biosynthesis*
Glycerol / metabolism*
Hydrogen-Ion Concentration
Lipid Metabolism
Lipids / chemistry
Temperature
Chemical
Reg. No./Substance:
0/Fatty Acids; 0/Lipids; 36-88-4/Carotenoids; 56-81-5/Glycerol; 7783-20-2/Ammonium Sulfate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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