Butanol production from cellulosic material by anaerobic co-culture of white-rot fungus Phlebia and bacterium Clostridium in consolidated bioprocessing.

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ID: 98995
2020
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Abstract
Butanol production from lignocelluloses is desirable. Unfortunately, the known wild-types of butanol fermenting Clostridium bacteria are not capable of delignification and saccharification. Here we analyzed butanol production from cellulosic material using anaerobic co-culture of C. saccharoperbutylacetonicum with the white-rot fungus Phlebia sp. MG-60-P2. In consolidated bioprocessing, the co-culture synergistically produced butanol and enhanced saccharification. Knockout of the pyruvate decarboxylase gene from MG-60-P2 to produce transformant line KO77 led to inhibition of ethanol fermentation and high accumulation of saccharified cellobiose and glucose from cellulose. In co-culture of KO77 with C. saccharoperbutylacetonicum, enhanced butanol production was observed (3.2 g/L, compared with 2.5 g/L in co-culture of MG-60-P2 and C. saccharoperbutylacetonicum). We believe this is the first application of co-culture between white-rot fungus and Clostridium to produce butanol from cellulose; butanol production from lignocellulose by co-culture of C. saccharoperbutylacetonicum with Phlebia sp. MG-60-P2 and its transformant should be pursued.
Reference Key
tri2020butanolbioresource Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Tri, Chu Luong;Kamei, Ichiro;
Journal Bioresource technology
Year 2020
DOI
S0960-8524(20)30334-5
URL
Keywords
co-culture abe fermentation process consolidated bioprocessing white-rot fungus pdc

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