Glycerol production by a novel osmotolerant yeast Candida glycerinogenes.
Appl Microbiol Biotechnol
; 55(6): 686-92, 2001 Jun.
Article
en En
| MEDLINE
| ID: mdl-11525615
ABSTRACT
Candida glycerinogenes, an osmotolerant yeast isolated from a natural sample in an environment of high osmotic pressure, had a modest sugar-tolerance and an extremely high glycerol productivity. The optimum conditions for glycerol formation by C. glycerinogenes were a temperature of 29-33 degrees C and a pH of 4-6. The optimum medium for glycerol production consisted of 230-250 g glucose/l, 2 g urea/l and 5 ml corn steep liquor/l (55-65 mg phosphates/l); the pH was not adjusted. The highest yield of glycerol was 64.5% (w/w) based on consumed glucose from 240 g glucose/l, and the highest concentration of glycerol was 137 g/l from 260 g glucose/l. These results were obtained by using a 30-l agitated fermentor under optimal fermentation conditions. In ten batch-fermentations carried out in a 50,000-l airlift fermentor, an average yield of glycerol of 50.67% (w/w) and an average glycerol concentration of 121.9 g/l were obtained from an average 240.6 g glucose/l.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Candida
/
Glicerol
Idioma:
En
Revista:
Appl Microbiol Biotechnol
Año:
2001
Tipo del documento:
Article
País de afiliación:
China