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Biodegradation of Chicken Feathers by Keratinolytic Fungi   Elhagag A. Hassan,Magdy M.K. Bagy and Fatthy M. Morsy

Biodegradation of Chicken Feathers by Keratinolytic Fungi

188 страниц. 2013 год.
LAP Lambert Academic Publishing
Feathers are discarded in large quantities at industrial poultry-processing plants as a waste by-product leading to environmental pollution. Because of the insoluble nature of keratin and its resistance to enzymatic digestion by animal, plant and many known microbial proteases, use of feathers as a source of value-added products has been very limited. Most feather wastes however is land filled or burned, which involves expenses and cause environmental problems. Traditional methods such as steam and pressure and strong alkali or acid usually used in processing feathers required significant energy and resulted in destruction of some essential amino acids. Microbial degradation of feathers may provide a viable alternative for improving feathers utilization because it is ecologically safe, low-cost and offers mild reaction conditions. In an attempt to resolve this dilemma, fungal degradation of feather may overwhelm these problems and provide available alternative for improving feathers...
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