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
Dans En
| LILACS
| ID: lil-644456
Responsable en Bibliothèque :
BR32.1
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).
Texte intégral:
1
Indice:
LILACS
Sujet Principal:
Levures
/
Yarrowia
/
Glycérol
Type d'étude:
Evaluation_studies
/
Prognostic_studies
langue:
En
Texte intégral:
Braz. j. microbiol
Thème du journal:
MICROBIOLOGIA
Année:
2012
Type:
Article