Production of β-carotene in Saccharomyces cerevisiae through altering yeast lipid metabolism
Artikel i vetenskaplig tidskrift, 2021

Saccharomyces cerevisiae is a widely used cell factory for the production of fuels and chemicals. However, as a non-oleaginous yeast, S. cerevisiae has a limited production capacity for lipophilic compounds, such as β-carotene. To increase its accumulation of β-carotene, we engineered different lipid metabolic pathways in a β-carotene producing strain and investigated the relationship between lipid components and the accumulation of β-carotene. We found that overexpression of sterol ester synthesis genes ARE1 and ARE2 increased β-carotene yield by 1.5-fold. Deletion of phosphatidate phosphatase (PAP) genes (PAH1, DPP1, and LPP1) also increased β-carotene yield by twofold. Combining these two strategies resulted in a 2.4-fold improvement in β-carotene production compared with the starting strain. These results demonstrated that regulating lipid metabolism pathways is important for β-carotene accumulation in S. cerevisiae, and may also shed insights to the accumulation of other lipophilic compounds in yeast.


lipid components

Saccharomyces cerevisiae

lipid metabolism pathways


Yijin Zhao

Beijing University of Chemical Technology

Yueping Zhang

China Agricultural University

Jens B Nielsen

BioInnovation Institute

Chalmers, Biologi och bioteknik, Systembiologi

Beijing University of Chemical Technology

Zihe Liu

Beijing University of Chemical Technology

Biotechnology and Bioengineering

0006-3592 (ISSN) 1097-0290 (eISSN)

Vol. 118 5 2043-2052


Biokemi och molekylärbiologi


Annan industriell bioteknik





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