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Fractional q-Difference EquationsMahmoud H. AnnabyAffiliated withFaculty of Science Department of Mathematics, Cairo University, Zeinab S. MansourAffiliated withFaculty of Science Department of Mathematics, King Saud University
* Final gross prices may vary according to local VAT.Examining the Potential of Plasma-Assisted Pretreated Wheat Straw for Enzyme Production by Trichoderma reesei
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Examining the Potential of Plasma-Assisted Pretreated Wheat Straw for Enzyme Production by Trichoderma reeseiDivanery Rodriguez-GomezLinda LehmannNadja Schultz-JensenAnne Belinda BjerreTimothy John HobleyArticleDOI:
10.-012-9631-xCite this article as: Rodriguez-Gomez, D., Lehmann, L., Schultz-Jensen, N. et al. Appl Biochem Biotechnol (: 2051. doi:10.-012-9631-x
Plasma-assisted pretreated wheat straw was investigated for cellulase and xylanase production by Trichoderma reesei fermentation. Fermentations were conducted with media containing washed and unwashed plasma-assisted pretreated wheat straw as carbon source which was sterilized by autoclavation. To account for any effects of autoclavation, a comparison was made with unsterilized media containing antibiotics. It was found that unsterilized washed plasma-assisted pretreated wheat straw (which contained antibiotics) was best suited for the production of xylanases (110 IU ml-1) and cellulases (0.5 filter paper units (FPU) ml-1). Addition of Avicel boosted enzyme titers with the highest cellulase titers (1.5 FPU ml-1) found with addition of 50 % w/w Avicel and with the highest xylanase production (350 IU ml-1) reached in the presence of 10 % w/w Avicel. Comparison with enzyme titers from other nonrefined feedstocks suggests that plasma pretreated wheat straw is a promising and suitable substrate for cellulase and hemicellulase production.PretreatmentOzonisationAvicelEnzyme productionFungal growth1.Octave, S., & Thomas, D. (2009). Biorefinery: Toward an industrial metabolism. Biochimie, 91, 659–664.2.Polizeli, M. L. T. M., Rizzatti, A. C. S., Monti, R., Terenzi, H. F., Jorge, J. A., & Amorim, D. S. (2005). Xylanases from fungi: Properties and industrial applications. Appl Microbiol Biot, 67(5), 577–591.3.Aro, N., Pakula, T., & Penttil?, M. (2005). Transcriptional regulation of plant cell wall degradation by filamentous fungi. FEMS Microbiol Rev, 29, 719–739.4.Zaldivar, M., Velásquez, J. C., Contreras, I., & Pérez, L. M. (2001). Trichoderma aureoviride 7–121, a mutant with enhanced production of lytic enzymes: Its potential use in waste cellulose degradation and/or biocontrol. 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Appl Biochem Biotech, 113(1–3), 115–124.Divanery Rodriguez-Gomez1Linda Lehmann1Nadja Schultz-Jensen23Anne Belinda Bjerre24Timothy John Hobley51.Center for Microbial Biotechnology, Department of Systems BiologyTechnical University of DenmarkLyngbyDenmark2.Biosystems Division, RIS? National Laboratory for Sustainable EnergyTechnical University of DenmarkRoskildeDenmark3.Department of GeochemistryGeological Survey of Denmark and Greenland (GEUS)Copenhagen KDenmark4.Department of Sustainable Energy and TransportTechnological Institute Gregersensvej 3TaastrupDenmark5.Institute for FoodTechnical University of DenmarkLyngbyDenmark
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