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Key Challenges of Microbial Degradation of Keratinous Wastes

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Abstract

Feather is the main waste of poultry industries and constitutes of 90% keratin. Wastes composed of keratin are insoluble and recalcitrant to degradation using conventional decomposing methods. Microbial degradation for keratinous wastes is a promising approach for being eco-friendly and economically. However, due to insolubility of keratinous waste, it has several challenges in upstream and downstream processes such as culture medium optimization, designing of bioreactor, bioreaction/flow type, bioreactor configurations considering mass and heat transfer limitations, rheology derived problems, monitoring of microbial activity, choosing of the right scale-up parameter and purification. In this study, the challenges for keratin degradation processes were discussed with the aim of opening new opportunities for keratinous waste treatments in industrial level.

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Authors and Affiliations

  1. Bioengineering Department, Faculty of Engineering, Manisa Celal Bayar University, Muradiye, 45140, Manisa, Turkey

    Ozlem Karaveli & Irem Deniz

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  1. Ozlem Karaveli
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  2. Irem Deniz
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Correspondence to Irem Deniz.

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Karaveli, O., Deniz, I. Key Challenges of Microbial Degradation of Keratinous Wastes. Protein J 40, 361–366 (2021). https://doi.org/10.1007/s10930-021-09966-9

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