Trichoderma koningiopsis FCD3-1 Strain Possesses Great Potential in Bioethanol Production
July 23, 2014http://www.biotechnologyforbiofuels.com/content/pdf/1754-6834-7-107.pdf
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Cellulose, the most abundant biomass on earth, is commonly degraded by cellulases from microorganisms. Trichoderma reesei has been explored for cellulase production. However, it has low beta-glucosidase activity, which is vital in cellulose hydrolysis. Guangxi University researchers in China led by Jia-Xun Feng isolated new fungal strains from forests in China hoping to discover a strain which can be used to improve commercial cellulase. The study was published in Biotechnology for Biofuels.
Out of 305 fungal strains from China, 31 strains were found to have decent cellulase activity; 18 of these were Trichoderma while 13 were Penicillium species. The best-performing isolate was the Trichoderma koningiopsis FCD3-1, which had similar cellulase activity to Trichoderma reesei Rut-C30, but exhibited high beta-glucosidase activity. It retained 90% of its activity after 360 hours at pH 4.0 and 30°C, which are optimal conditions for producing ethanol from cellulose.
T. koningiopsis FCD3-1 was the most efficient producer of cellulase, and also produced a high level of beta-glucosidase, indicating its potential application in bioethanol production.
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