Abstract
2-Phenylethanol (2-PE) is an aromatic alcohol with a rose scent, which is used in the cosmetics, fragrance and food industries. 2-PE is produced in a few yeast strains by Ehrlich pathway. In this study, Kluyveromyces marxianus was genetically engineered for overproduction of 2-PE from glucose. About 1.0g/L of 2-PE was produced by overexpressing phenylpyruvate decarboxylase (ARO10) and alcohol dehydrogenase (ADH2) genes of Saccharomyces cerevisiae. A similar level of 2-PE was also produced from evolved K. marxianus, which was resistant to the phenylalanine analog, p-fluorophenylalanine. aroG fbr from Klebsiella pneumoniae encoding a feedback resistant mutant of 3-deoxy-D-arabino-heptulosonate-7-phosphate (DHAP) synthase was overexpressed in the evolved K. marxianus. Finally, 1.3g/L of 2-PE was produced from 20g/L glucose without addition of phenylalanine in the medium.
| Original language | English |
|---|---|
| Pages (from-to) | 44-47 |
| Number of pages | 4 |
| Journal | Enzyme and Microbial Technology |
| Volume | 61-62 |
| DOIs | |
| Publication status | Published - 2014 Jul |
Bibliographical note
Funding Information:This research was supported by National Research Foundation of Korea (NRF) (Nos. 2011-0015358 and 2012M1A2A2026560 ). We appreciate Prof. Akada at Yamaguchi University in Japan, who constructed and donated URA-auxotroph of K. marxianus strain via the NBRP.
Keywords
- 2-Phenylethanol
- DHAP synthase
- Ehrlich pathway
- Kluyveromyces marxianus
ASJC Scopus subject areas
- Biotechnology
- Bioengineering
- Biochemistry
- Applied Microbiology and Biotechnology