Ethanol Production from Various Sugars and Cellulosic Biomass by White Rot Fungus Lenzites betulinus.
10.5941/MYCO.2016.44.1.48
- Author:
Kyung Hoan IM
1
;
Trung Kien NGUYEN
;
Jaehyuk CHOI
;
Tae Soo LEE
Author Information
1. Division of Life Sciences, Incheon National University, Incheon 22012, Korea. tslee@incheon.ac.kr
- Publication Type:Original Article
- Keywords:
Cellulosic biomass;
Ethanol;
Lenzites betulinus;
White rot fungus
- MeSH:
Animals;
Arabinose;
Basidiomycota;
Biomass*;
Carbohydrates*;
Cellobiose;
Ethanol*;
Fruit;
Fungi*;
Galactose;
Gills;
Glucose;
Mannose;
Trees;
Xylose;
Zea mays
- From:Mycobiology
2016;44(1):48-53
- CountryRepublic of Korea
- Language:English
-
Abstract:
Lenzites betulinus, known as gilled polypore belongs to Basidiomycota was isolated from fruiting body on broadleaf dead trees. It was found that the mycelia of white rot fungus Lenzites betulinus IUM 5468 produced ethanol from various sugars, including glucose, mannose, galactose, and cellobiose with a yield of 0.38, 0.26, 0.07, and 0.26 g of ethanol per gram of sugar consumed, respectively. This fungus relatively exhibited a good ethanol production from xylose at 0.26 g of ethanol per gram of sugar consumed. However, the ethanol conversion rate of arabinose was relatively low (at 0.07 g of ethanol per gram sugar). L. betulinus was capable of producing ethanol directly from rice straw and corn stalks at 0.22 g and 0.16 g of ethanol per gram of substrates, respectively, when this fungus was cultured in a basal medium containing 20 g/L rice straw or corn stalks. These results indicate that L. betulinus can produce ethanol efficiently from glucose, mannose, and cellobiose and produce ethanol very poorly from galactose and arabinose. Therefore, it is suggested that this fungus can ferment ethanol from various sugars and hydrolyze cellulosic materials to sugars and convert them to ethanol simultaneously.
