Abstract
A need for an economically attractive method for feather waste utilization, lead us to research for a new effective technology assuring an outcome of valuable product. In this study, keratinase producing Geobacillus thermodenitrificans a bacterial isolate PS41 was used to convert feather waste into bioactive peptides. Feather peptide under 15 kDa had shown a maximum antioxidant activity and it was identified as radical oxygenase of Propionibacterium acne. The purified feather peptide from PS41 showed antibacterial activity, anticancer activity against human alveolar basal epithelial cells, and larvicidal activity against Aedes aegypti, Anopheles stephensi, and Culex quinquefasciatus larvae in comparison to non-targeted organisms like zebra fish embryo and brine shrimp. The wound healing rate was significantly higher in peptide treated groups in comparison to standard and control groups respectively. Peptide treated wound had exhibited promisingly complete healing after 5 days of treatment in cat fish model and after 12 days of treatment in wistar albino rat. Histological analysis on experimental animal model showed that the tissue regenerating efficacy of peptide was more than the standard.
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