Discovery of synthesis and secretion of polyol esters of fatty acids by four basidiomycetous yeast species in the order Sporidiobolales

作者：Garay Luis A; Sitepu Irnayuli R; Cajka Tomas; Fiehn Oliver; Cathcart Erin; Fry Russell W; Kanti Atit; Nugroho Agustinus Joko; Faulina Sarah Asih; Stephanandra Sira; German J Bruce; Boundy Mills Kyria L^*

来源：Journal of Industrial Microbiology and Biotechnology, 2017, 44(6): 923-936.

DOI：10.1007/s10295-017-1919-y

• Polyol esters of fatty acids
• Yeast glycolipids
• Biosurfactants
• Secretion
• Basidiomycetes

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.

• 出版日期2017-6