Journal
JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
Volume 44, Issue 6, Pages 923-936Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10295-017-1919-y
Keywords
Polyol esters of fatty acids; Yeast glycolipids; Biosurfactants; Secretion; Basidiomycetes
Categories
Funding
- NIH Fogarty International Center [U01TW008160]
- NIH Office of Dietary Supplements
- National Science Foundation
- Department of Energy
- USDA Agricultural Food Research Initiative of the National Food and Agriculture, USDA [35621-04750]
- NIH [HL113452, DK097154, S10-RR031630]
- Science Translation and Innovation Research (STAIR) Grant Program of the University of California Davis
- Consejo Nacional de Ciencia y Tecnologia (CONACYT) [291795]
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Polyol esters of fatty acids (PEFA) are amphiphilic glycolipids produced by yeast that could play a role as natural, environmentally friendly biosurfactants. We recently reported discovery of a new PEFA-secreting yeast species, Rhodotorula babjevae, a basidiomycetous yeast to display this behavior, in addition to a few other Rhodotorula yeasts reported on the 1960s. Additional yeast species within the taxonomic order Sporidiobolales were screened for secreted glycolipid production. PEFA production equal or above 1 g L-1 were detected in 19 out of 65 strains of yeast screened, belonging to 6 out of 30 yeast species tested. Four of these species were not previously known to secrete glycolipids. These results significantly increase the number of yeast species known to secrete PEFA, holding promise for expanding knowledge of PEFA synthesis and secretion mechanisms, as well as setting the groundwork towards commercialization.
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