Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XX
Written by Mioara Ancuța DUMITRU, Gabriel CORBU, Ștefana JURCOANE
Leather industry discharges enormous amount of chrome containing leather solid wasted which creates a major disposal problem. Tanned leather solid waste is a complex of hard-to-degrade proteins and chromium. The biotechnological sector allows us to use the waste materials as bacterial substrate for enzyme production. The present work covers potential application in the potato bio-growth as fertilizer. The hydrolysate results from bacterial conversion of leather components. Bacteria was isolated from the composting of leather and incubated into a minimal media for 120 hours at 35°C. In the optimization process maximum proteinase production was 1.223 U/ml. The results obtained suggested that leather debris containing amino-acids and proteins andcan be applied as organic nitrogen soil input.
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