Evaluation of the composition of culture medium for yeast biomass production using raw glycerol from biodiesel synthesis
Braz. j. microbiol
;
43(2): 432-440, Apr.-June 2012. graf, tab
Article
in English
| LILACS
| ID: lil-644456
ABSTRACT
The work herewith investigated the production of yeast biomass as a source of protein, using Yarrowia lipolytica NRRL YB-423 and raw glycerol from biodiesel synthesis as the main carbon source. A significant influence of glycerol concentration, initial pH and yeast extract concentration on biomass and protein content was observed according to the 2v5-1 fractional design. These factors were further evaluated using a central composite design and response surface methodology, and an empirical model for protein content was established and validated. The biomass of Yarrowia lipolytica NRRL YB-423 reached 19.5 ± 1.0 g/L in shaken flasks cultivation, with a protein content of 20.1 ± 0.6% (w/w).
Full text:
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Index:
LILACS (Americas)
Main subject:
Yeasts
/
Yarrowia
/
Glycerol
Type of study:
Evaluation studies
/
Prognostic study
Language:
English
Journal:
Braz. j. microbiol
Journal subject:
Microbiology
Year:
2012
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal do Rio Grande/BR
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