Bioconversion of Xylan to triglycerides by oil-rich yeasts. [Cryptococcus albidus; Cryptococcus terricoluus; Trichosporon]
A series of lipid-accumulating yeasts was examined for their potential to saccharify xylan and accumulate triglyceride. Of the genera tested, including Candida, Cryptococcus, Lipomyces, Rhodosporidium, Rhodotorula, and Trichosporon, only Crytococcus and Trichosporon isolates saccharified xylan. All of the strains could assimilate xylose and accumuate triglyceride under nitrogen-limiting conditions. Strains of Cryptococcus albidus were found to be especially useful for a one-step saccharification of xylan coupled to triglyceride synthesis. Crytococcus terricolus, a strain constitutive for lipid accumulation, lacked extracellular xylanase, but did assimilate xylose and xylobiose and was able to continuously convert xylan to triglyceride if the culture medium was supplemented with xylanase. 22 references.
- Research Organization:
- Univ. of Colorado, Golden
- OSTI ID:
- 6865162
- Journal Information:
- Appl. Environ. Microbiol.; (United States), Vol. 47:5
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
TRIGLYCERIDES
BIOSYNTHESIS
RESOURCE POTENTIAL
XYLANS
BIOCONVERSION
SACCHARIFICATION
YEASTS
CARBOHYDRATES
CHEMICAL REACTIONS
DECOMPOSITION
ESTERS
FUNGI
HEMICELLULOSE
HYDROLYSIS
LIPIDS
LYSIS
MICROORGANISMS
ORGANIC COMPOUNDS
PLANTS
POLYSACCHARIDES
SACCHARIDES
SOLVOLYSIS
SYNTHESIS
550700* - Microbiology