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예수지(Suji Ye),박희영(Heeyoung Park),곽유리(Yuri Kwak),정덕열(Deokyeol Jeong),김수린(Soo Rin Kim) 한국생물공학회 2019 KSBB Journal Vol.34 No.1
Erythritol, a four-carbon polyol, is recently noted as promising sugar alternatives. Several yeast strains such as Candida magnoliae, Yarrowia lipolytica, and Pseudozyma tsukubaensis have been known as erythritol producers. We recently isolated a yeast strain from domestic fruit samples, and noticed that this strain can also produce erythritol. Thus, the aim of this study is to optimize fermentation conditions of the isolated yeast to maximize erythritol production. Specifically, fermentations were conducted under different temperatures, aeration conditions, glucose concentrations and with different types of reducing agents. Next, we tried to scale-up the erythritol production using a bioreactor. In comparison to other known erythritol-producing strains as control, the newly isolated yeast strain showed the greatest potential to be used as an industrial erythritol producer.