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The Role of Yeast-Surface-Display Techniques in Creating Biocatalysts for Consolidated BioProcessing

1
Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
2
Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan
3
Graduate School of Biotechnology and Bioengineering, Yuan Ze University, Taoyuan 32003, Taiwan
*
Author to whom correspondence should be addressed.
Catalysts 2018, 8(3), 94; https://doi.org/10.3390/catal8030094
Received: 31 January 2018 / Revised: 19 February 2018 / Accepted: 21 February 2018 / Published: 25 February 2018
(This article belongs to the Special Issue Immobilized Biocatalysts)
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Abstract

Climate change is directly linked to the rapid depletion of our non-renewable fossil resources and has posed concerns on sustainability. Thus, imploring the need for us to shift from our fossil based economy to a sustainable bioeconomy centered on biomass utilization. The efficient bioconversion of lignocellulosic biomass (an ideal feedstock) to a platform chemical, such as bioethanol, can be achieved via the consolidated bioprocessing technology, termed yeast surface engineering, to produce yeasts that are capable of this feat. This approach has various strategies that involve the display of enzymes on the surface of yeast to degrade the lignocellulosic biomass, then metabolically convert the degraded sugars directly into ethanol, thus elevating the status of yeast from an immobilization material to a whole-cell biocatalyst. The performance of the engineered strains developed from these strategies are presented, visualized, and compared in this article to highlight the role of this technology in moving forward to our quest against climate change. Furthermore, the qualitative assessment synthesized in this work can serve as a reference material on addressing the areas of improvement of the field and on assessing the capability and potential of the different yeast surface display strategies on the efficient degradation, utilization, and ethanol production from lignocellulosic biomass. View Full-Text
Keywords: consolidated bioprocessing; yeast surface display; bioethanol; lignocellulosic biomass; fermentation; immobilized biocatalyst; whole-cell biocatalyst; DYSD; JANNASEY consolidated bioprocessing; yeast surface display; bioethanol; lignocellulosic biomass; fermentation; immobilized biocatalyst; whole-cell biocatalyst; DYSD; JANNASEY
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Tabañag, I.D.F.; Chu, I.-M.; Wei, Y.-H.; Tsai, S.-L. The Role of Yeast-Surface-Display Techniques in Creating Biocatalysts for Consolidated BioProcessing. Catalysts 2018, 8, 94.

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