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is the preferred microorganism for the production of bioethanol from biomass. Industrial strain development for first-generation ethanol from sugar cane and corn mostly relies on the historical know-how from high gravity beer brewing and alcohol distilleries. However, the recent design of yeast platforms for the production of second-generation biofuels and green chemicals from lignocellulose exposes yeast to different environments and stress challenges. The industrial need for increased productivity, wider substrate range utilization, and the production of novel compounds leads to renewed interest in further extending the use of current industrial strains by exploiting the immense, and still unknown, potential of natural yeast strains. This review describes key metabolic engineering strategies tailored to develop efficient industrial and novel natural yeast strains towards bioethanol production from biomass. Furthermore, it shapes how proof-of-concept studies, often advanced in academic settings on natural yeast, can be upgraded to meet the requirements for industrial applications. Academic and industrial research should continue to cooperate on both improving existing industrial strains and developing novel phenotypes by exploring the vast biodiversity available in nature on the road to establish yeast biorefineries where a range of biomass substrates are converted into valuable compounds.
Favaro et al. (2019) studied this question.
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