Integrated delignification and simultaneous saccharification and fermentation of hard wood by a white-rot fungus, Phlebia sp. MG-60.

Abstract:

:We propose a new process of unified aerobic delignification and anaerobic saccharification and fermentation of wood by a single microorganism, the white-rot fungus Phlebia sp. MG-60. This fungus is able to selectively degrade lignin under aerobic solid state fermentation conditions, and to produce ethanol directly from delignified oak wood under semi-aerobic liquid culture conditions. After 56 d aerobic incubation, 40.7% of initial lignin and negligible glucan were degraded. Then under semi-aerobic conditions without the addition of cellulase, 43.9% of theoretical maximum ethanol was produced after 20 d. Changing from aerobic conditions (biological delignification pretreatment) to semi-aerobic conditions (saccharification and fermentation) enabled the fermentation of wood by solely biological processes. This is the first report of ethanol production from woody biomass using a single microorganism without addition of chemicals or enzymes.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Kamei I,Hirota Y,Meguro S

doi

10.1016/j.biortech.2012.09.007

subject

Has Abstract

pub_date

2012-12-01 00:00:00

pages

137-41

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(12)01344-2

journal_volume

126

pub_type

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