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Secretome characteristics of pelletized Trichoderma reesei and cellulase production

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Chao, Yapeng Singh, Deepak Yu, Liang Li, Zhiming Chi, Zhanyou Chen, Shulin
Description	Country affiliation: United States Author Affiliation: Chao Y ( Department of Biological System Engineering, Washington State University, Pullman, WA 99164, USA.)
Abstract	Trichoderma reesei is an important cellulase producer and its secondary mycelial phase is responsible for cellulase expression and secretion in submerged fermentation. Little is known regarding the effects of fungal morphology on cellulase production by Trichoderma sp. In this study we aimed to extend the understanding of cellulase production by T. reesei, especially correlating cellulase productivity with pellet morphology and with its secretome characteristics. We found that T. reesei was more likely to form pellets in malt extract broth than in potato dextrose broth. $CaCO_{3}$ helped in formation of fine pellets in malt extract broth. $10^{9} spores/ml$ resulted in formation of pellets with the size of 0.13 ± 0.047 mm. LC/MS spectrometry analysis indicated that the secretomes from pellet was different from that of mycelial mat under the same fermentation conditions. Optimization tests showed that lactose, xylose and Pluronic F68 are important for efficient production of cellulases with FPU activity in the pellets fermentation. This is the first report on the artificial formation of pellets by Trichoderma sp. as well as correlation between physiological characteristic of the pellets and cellulase production by T. reesei. The findings from this study can be used for improvement of cellulase productivity.
File Format	HTM / HTML
ISSN	09593993
Issue Number	8
Volume Number	28
e-ISSN	15730972
Journal	World Journal of Microbiology and Biotechnology
Language	English
Publisher	Springer
Publisher Date	2012-08-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Trichoderma Research Support, Non-u.s. Gov't Discipline Microbiology Fungal Proteins Biosynthesis Fermentation Journal Article Discipline Biotechnology Growth & Development Cellulase Spores, Fungal Protein Array Analysis Enzymology
Content Type	Text
Resource Type	Article
Subject	Physiology Medicine Applied Microbiology and Biotechnology Biotechnology

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Secretome characteristics of pelletized Trichoderma reesei and cellulase production

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Secretome characteristics of pelletized Trichoderma reesei and cellulase production

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Secretome characteristics of pelletized Trichoderma reesei and cellulase production