Published in Scientific Bulletin. Series F. Biotechnologies, Vol. XIX
Written by Mioara Ancuta DUMITRU, Ștefana JURCOANE
The leather waste generated by the leather industry contains a large amount of hard to degrade proteins. Those squanders are destroyed by incineration and it represents a threat for the environment. Through biotechnological methods, this waste can be used as substrate for enzyme production, the leather serving as the unique source of carbon and nitrogen. This paper presents the isolation and characterization of leather degrading bacterium. The hydrolytic bacteria where isolated from compost of fur and skin .The isolated colonies show their ability to synthetize various hydrolytic enzyme as proteinase (0.709 – 0.868 U/ml), lipases (20-80 U/ml), collagenases (0.344 – 0.373 U/ml), amylases (0.104 – 0.198 U/ml), keratinases (0.4-1.8U/ml) and it can be use in different biotechnological processes. The proteolytic enzymes have an important value in the biotechnological sector and the obtaining process presented in this paper is a nonpolluting alternative to the current disposal system. The results show that the isolated bacteria have the capacity to produce hydrolytic enzymes able to degrade different types of leathers.
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degradation
