MILK CLOTTING ACTIVITY OF RECOMBINANT CAMEL CHYMOSIN
نویسندگان
چکیده
One of the earliest biotechnological applications enzymes is cheese production. The high specific milk-clotting activity chymosin gives it an advantage over other proteases in industry. action based on hydrolysis bond between amino acid residues Phe105 and Met106 κ-casein molecule, which causes destabilisation casein micelles, coagulation milk its separation into a clot whey. A recombinant camel Camelus Bactrianus was obtained using yeast producer strain Pichia pastoris GS115/pGAPZαA/ProchymCB. purified by ion exchange chromatography. camelian against mare's studied as function pH temperature. It found that optimum value at maximum camel's with respect to observed 4.0 temperature 70°C. mare, cow goat 123, 9605 4650 units/mg, respectively. Recombinant shown have activity, sufficient produce curd cheese. yield from 6 l 936 grams. has prospects for use cow's goat's processing production technologies.
منابع مشابه
Camel and bovine chymosin: the relationship between their structures and cheese-making properties
Bovine and camel chymosin are aspartic peptidases that are used industrially in cheese production. They cleave the Phe105-Met106 bond of the milk protein κ-casein, releasing its predominantly negatively charged C-terminus, which leads to the separation of the milk into curds and whey. Despite having 85% sequence identity, camel chymosin shows a 70% higher milk-clotting activity than bovine chym...
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ژورنال
عنوان ژورنال: Habaršy - A?l-Farabi atyndag?y K?azak? memlekettik ?lttyk? universiteti. Biologiâ seriâsy
سال: 2022
ISSN: ['2617-7498', '1563-0218']
DOI: https://doi.org/10.26577/eb.2022.v90.i1.04