Optimization of Enzymatic Hydrolysis Conditions of Chicken Feathers

Authors

  • P. Mokrejš Department of Polymeric Engineering, Faculty of Technology, Tomas Bata University, Zlín | Centre of Polymer Systems, Faculty of Technology, Tomas Bata University, Zlín
  • O. Krejčí Department of Polymeric Engineering, Faculty of Technology, Tomas Bata University, Zlín
  • R. Čermák Department of Polymeric Engineering, Faculty of Technology, Tomas Bata University, Zlín | Centre of Polymer Systems, Faculty of Technology, Tomas Bata University, Zlín
  • P. Svoboda Department of Polymeric Engineering, Faculty of Technology, Tomas Bata University, Zlín | Centre of Polymer Systems, Faculty of Technology, Tomas Bata University, Zlín

Keywords:

enzyme hydrolysis, hydrolyzate, keratin, chicken feathers, by-products

Abstract

Poultry feathers, a by-product in poultry industry, and a significant keratin source, are not adequately utilised. The paper describes processing of chicken feathers by alkaline-enzymatic hydrolysis to obtain keratin hydrolysate. The effects of hydrolysis conditions on the extent of hydrolysis and on chemical properties of the hydrolysates were investigated. The experiments were statistically eva­luated. Under mild conditions the keratin hydrolysate containing 13.2 % N, 13.1 % inorganic solids, 1.8 % S and 0.6 mmol g–1 of NH2 groups was obtained. Keratin hydrolysates can be utilised in fodders, in production of biodegradable films and coatings or as a material for microcapsules.

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Published

2013-09-15

How to Cite

Mokrejš, P., Krejčí, O., Čermák, R., & Svoboda, P. (2013). Optimization of Enzymatic Hydrolysis Conditions of Chicken Feathers. Chemické Listy, 107(9), 709–712. Retrieved from http://ww-w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/615

Issue

Vol. 107 No. 9 (2013)

Section

Articles