Document Detail


Milk from cows of different ?-casein genotypes as a source of ?-casomorphin-7.
MedLine Citation:
PMID:  22080615     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The aim of this study was to quantify ?-casomorphin-7 in raw, hydrolyzed and processed milk in different stages of the cow lactation. The obtained results lead to the following conclusion: the highest amount of ?-casomorphin-7 released from the hydrolyzed and processed milk is related to the ?-casein A1 allele, irrespective of a lactation period. Some traces of ?-casomorphin-7 in milk from cows with the ?-casein A2 variant are probably a result of the acid hydrolysis of ?-casein during its digestion with pepsin. It has been shown that processing of raw milk at high temperatures affects, in a slight degree, the differences between ?-casomorphins-7 originating from different ?-casein genotypes. The obtained results suggest a possibility to provide a new nutritional factor for milk quality based on the content of ?-casomorphin-7 liberated in vivo from milk digested by a mixture of the gastrointestinal enzymes.
Authors:
Anna Cie Li Ska; El Bieta Kostyra; Henryk Kostyra; Kamil Ole Ski; Ewa Fiedorowicz; Stanis Aw Kami Ski
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-14
Journal Detail:
Title:  International journal of food sciences and nutrition     Volume:  -     ISSN:  1465-3478     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-14     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9432922     Medline TA:  Int J Food Sci Nutr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Animal Genetics, University of Warmia and Mazury , Olsztyn , Poland.
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