Garay Luis A, Sitepu Irnayuli R, Cajka Tomas, Fiehn Oliver, Cathcart Erin, Fry Russell W, Kanti Atit, Joko Nugroho Agustinus, Faulina Sarah Asih, Stephanandra Sira, German J Bruce, Boundy-Mills Kyria L
Phaff Yeast Culture Collection, Department of Food Science and Technology, University of California, One Shields Ave, Davis, CA, 95616-8598, USA.
Biotechnology Department, Indonesia International Institute for Life Sciences (i3L), Jalan Pulo Mas Barat Kav. 88, Jakarta, 13210, Indonesia.
J Ind Microbiol Biotechnol. 2017 Jun;44(6):923-936. doi: 10.1007/s10295-017-1919-y. Epub 2017 Mar 13.
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 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.
脂肪酸多元醇酯（PEFA）是酵母产生的两亲性糖脂，可作为天然、环保的生物表面活性剂发挥作用。我们最近报告发现了一种新的分泌PEFA的酵母物种——巴氏红酵母，它是一种担子菌酵母，除了20世纪60年代报道的其他一些红酵母外，也表现出这种行为。对分类目掷孢酵母目内的其他酵母物种进行了分泌糖脂生产的筛选。在所筛选的65株酵母中，有19株（属于所测试的30种酵母中的6种）检测到PEFA产量等于或高于1 g/L。其中有4个物种以前未知能分泌糖脂。这些结果显著增加了已知能分泌PEFA的酵母物种数量，有望扩展对PEFA合成和分泌机制的认识，并为商业化奠定基础。
