optimization of the fermentation medium for maximum alkaline protease production was carried out. fifteen positive isolates were examined for their extent of alkaline protease production. the most potent producer was identified as bacillus sp. the solid substrate screening showed that the combination of wheat straw and bean husk was the best one. the initial screening by using plackett–burman’s...

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Optimization of the fermentation medium for maximum alkaline protease production was carried out. Fifteen positive isolates were examined for their extent of alkaline protease production. The most potent producer was identified as Bacillus sp. The solid substrate screening showed that the combination of wheat straw and bean husk was the best one. The initial screening by using Plackett–Burman’s...

economic and environmental logging is important for sustainable wood production in the caspian forests, north of iran. predetermination of the skid trail network and directional felling is a usual recommended method to reduce logging impact. the aim of this study was evaluation of directional felling and finding factors effective on felling error. totally 135 trees were selected randomly for di...

This dissertation is dedicated to my parents Mamatsaba and Ohentse, my siblings Lerato and Lebogang, my cousin siblings Diau, Keneilwe, Ntsane and my grandmother Sponkie. 2 Acknowledgements I would like to express my deepest gratitude to the following: God, for I am a product of his mercy and love. This has been a successful year and I know I could not have done it alone. Thank you Father. Prof...

ACKNOWLEDGEMENTS First of all, i would like to thank my advisor Prof. Laurence J. Jacobs for all his support during my stay in Atlanta. He helped me in desperate situations and motivated me whenever it was necessary. Because of his financial and organizational commitment , i could present the results of this thesis at the Quantitative Nondestructive Evaluation (QNDE) conference in Brunswick, Ma...

Nine Aspergillus and three of Trichoderma strains were grown on wheat bran (WB) medium under solid state fermentation (SSF) for amylase production. Aspergillus oryzae LS1 produced the highest level of the enzyme. The thermal stability profile of its crude enzyme revealed the half-life time of more than 2 h at 50 and 60ºC. The enzyme production was affected by strain type, incubation periods, le...