Direct ethanol production from cellulosic materials by the hypersaline-tolerant white-rot fungus Phlebia sp. MG-60

• Published in: Bioresource technology Vol. 112; pp. 137 - 142
• Main Authors: Kamei, Ichiro, Hirota, Yoshiyuki, Mori, Toshio, Hirai, Hirofumi, Meguro, Sadatoshi, Kondo, Ryuichiro
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01-05-2012
• Subjects: Adaptation, Physiological; Basidiomycota - physiology; Bioethanol; Biotechnology - methods; Cellobiose - metabolism; Cellulose - metabolism; Ethanol; Ethanol - metabolism; Ethyl alcohol; Fermentation - physiology; Fructose; Fungi; Glucose - metabolism; Magnesium; Maltose - metabolism; Mannose; Salt-Tolerance; Simultaneous saccharification and fermentation; Time Factors; Waste paper fermentation; White-rot fungi; Xylose; Waste paper fermentation; Bioethanol; White-rot fungi; Simultaneous saccharification and fermentation
• ISSN: 0960-8524; 1873-2976
• DOI: 10.1016/j.biortech.2012.02.109

► White-rot fungus Phlebia sp. MG-60 was the good producer of ethanol from cellulose. ► Kraft pulp was directly converted into ethanol without addition of cellulase. ► Newspaper was directly converted into ethanol. ► Hexoses were completely assimilated by MG-60 with high ethanol yields. ► Xylose was also completely assimilated with high ethanol yields.
White-rot fungus Phlebia sp. MG-60 was identified as a good producer of ethanol from several cellulosic materials containing lignin. When this fungus was cultured with 20g/L unbleached hardwood kraft pulp (UHKP), 8.4g/L ethanol was produced after 168h of incubation giving yields of ethanol of 0.42g/g UHKP, 71.8% of the theoretical maximum. When this fungus was cultured with waste newspaper, 4.2g/L ethanol was produced after 216h of incubation giving yields of ethanol of 0.20g/g newspaper, 51.1% of the theoretical maximum. Glucose, mannose, galactose, fructose and xylose were completely assimilated by Phlebia sp. MG-60 with ethanol yields of 0.44, 0.41, 0.40, 0.41 and 0.33g/g of sugar respectively. These results indicated that Phlebia sp. MG-60 was a good candidate for bioethanol production from cellulosic materials.