A pilot study on lignocelluloses to ethanol and fish feed using NMMO pretreatment and cultivation with zygomycetes in an air-lift reactor
Journal article, 2011

A complete process for the production of bioethanol and fungal biomass from spruce and birch was investigated. The process included milling, pretreatment with N-methylmorpholine-N-oxide (NMMO), washing of the pretreated wood, enzymatic hydrolysis, and cultivation of the zygomycetes fungi Mucor indicus. Investigated factors included wood chip size (0.5-16 mm), pretreatment time (1-5 h), and scale of the process from bench-scale to 2 m high airlift reactor. Best hydrolysis yields were achieved from wood chips below 2 mm after 5 h of pretreatment. Ethanol yields (mg/g wood) of 195 and 128 for spruce, and 175 and 136 for birch were achieved from bench-scale and airlift, respectively. Fungal biomass yields (mg/g wood) of 103 and 70 for spruce, and 86 and 66 for birch from bench scale and airlift respectively were simultaneously achieved. NMMO pretreatment and cultivation with M. indicus appear to be a good alternative for ethanol production from birch and spruce.

Mucor indicus

Ethanol

Airlift

N-methylmorpholine-N-oxide

Author

Patrik R Lennartsson

Chalmers, Chemical and Biological Engineering, Chemical Reaction Engineering

Claes Niklasson

Chalmers, Chemical and Biological Engineering, Chemical Reaction Engineering

Mohammad Taherzadeh Esfahani

University of Borås

Bioresource Technology

0960-8524 (ISSN)

Vol. 102 6 4425-4432

Driving Forces

Sustainable development

Subject Categories

Industrial Biotechnology

Areas of Advance

Energy

DOI

10.1016/j.biortech.2010.12.089

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3/8/2018 9