B. Barati, I. Amiri
2015
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Quality indicators
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Abstract
Cellulose is now as an important composite of lignolosic material. Cellulose is made up of D-glucose molecules linked together by β-1, 4-glucosidic bonds have complex and diverse structures. Although cellulase has several applications in brewery, animal food, and laundry, pulp and paper industries, its application in bioethanol production attracted many researchers recently. Bioconversion of cellulose to glucose is done by different cellulase enzymes extracted from verity organisms. Trichoderma reesei is a well-known fungi species which produce very efficient cockatiel of cellulases. One of the key enzymes in this procedure is cellobiohydrolase which attackes to the end sides of cellulose. However, due to high cost of enzymes bio ethanol is not commercialized yet. One approach to overcome this obstacle is to lower enzyme usage by increasing its stability and efficiency, the most common way to enhance enzyme stability is introducing disulfide bonds. Rational protein engineering tools helped to design more stable enzyme to decrease cellulase production. Recently by advances in computer science the protein can be computationally engineered and the effect can be simulated prior to any lab experiment.