3 years ago

Oleaginous yeasts: Promising platforms for the production of oleochemicals and biofuels

Oleaginous yeasts: Promising platforms for the production of oleochemicals and biofuels
José L. Adrio
Oleaginous yeasts have a unique physiology that makes them the best suited hosts for the production of lipids, oleochemicals, and diesel-like fuels. Their high lipogenesis, capability of growing on many different carbon sources (including lignocellulosic sugars), easy large-scale cultivation, and an increasing number of genetic tools are some of the advantages that have encouraged their use to develop sustainable processes. This mini-review summarizes the metabolic engineering strategies developed in oleaginous yeasts within the last 2 years to improve process metrics (titer, yield, and productivity) for the production of lipids, free fatty acids, fatty acid-based chemicals (e.g., fatty alcohols, fatty acid ethyl esters), and alkanes. During this short period of time, tremendous progress has been made in Yarrowia lipolytica, the model oleaginous yeast, which has been engineered to improve lipid production by different strategies including increasing lipogenic pathway flux and biosynthetic precursors, and blocking degradation pathways. Moreover, remarkable advances have also been reported in Rhodosporidium toruloides and Lipomyces starkey despite the limited genetic tools available for these two very promising hosts. Biotechnol. Bioeng. 2017;114: 1915–1920. © 2017 Wiley Periodicals, Inc. Oleaginous yeasts may provide unique platforms for the sustainable production of fatty acid-derived chemicals. This mini-review summarizes different metabolic engineering strategies developed in these microorganisms within the last 2 years to improve the production of lipids, free fatty acids, fatty alcohols, fatty acid ethyl esters, and alkanes.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/bit.26337

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