PREPARATION OF KERATIN-CONTAINING PROTEIN COMPOUNDS FROM CHICKENS FEATHERS USING HYDROCHLORIC ACID

Authors

Dilnozakhon I. TURSUNOVA, Tashkent Institute of Chemical Technology, Tashkent, UzbekistanFollow
Oytura S. MAKSUMOVA, Tashkent Institute of Chemical Technology, Tashkent, UzbekistanFollow

Abstract

The purpose of this work is the preparation of keratin-containing protein compounds from poultry processing waste by hydrolysis with hydrochloric acid, including treatment of the protein with 5% H₂O₂. The process of cleaning feather raw materials using water, liquid soap, NaClO₃, C₂H₅OH, and H₂O_2, and the reaction of its hydrolysis with an aqueous solution of HCl have been studied. The influence of temperature and reaction duration on the hydrolysis process was studied, and its optimal mode was established. It has been shown that the process of hydrolysis of feather raw materials occurs with sufficient efficiency in an HCl solution with a concentration of 5% at a temperature of 80–90°C for 4 hours. The possibility of obtaining a water-soluble form of keratin-containing proteins by acid hydrolysis in the presence of hydrogen peroxide and in its absence has been shown. The yield was determined, and the amino acid composition of keratin-containing proteins was found using liquid chromatography.

Recommended Citation

TURSUNOVA, Dilnozakhon I. and MAKSUMOVA, Oytura S. (2024) "PREPARATION OF KERATIN-CONTAINING PROTEIN COMPOUNDS FROM CHICKENS FEATHERS USING HYDROCHLORIC ACID," CHEMISTRY AND CHEMICAL ENGINEERING: Vol. 2024: No. 2, Article 6.
DOI: https://doi.org/10.34920/cce202426
Available at: https://cce.researchcommons.org/journal/vol2024/iss2/6