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Proteolysis and the optimal ripening time of Tounj cheese

Tounj cheese is a semi-hard, full-fat, smoked, farmhouse, fresh Croatian cheese that is produced from raw milk. It was presumed that using a ripening process would develop a new type of cheese. The objective of this study was to follow the basic proteolytic changes during the ripening of Tounj chees...

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Published in:International dairy journal 2005-06, Vol.15 (6), p.619-624
Main Authors: Kalit, S., Lukac Havranek, J., Kaps, M., Perko, B., Cubric Curik, V.
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Language:English
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cited_by cdi_FETCH-LOGICAL-c394t-8d7cc26d4f18007700354f2561d089c94de5950faaf1a7c7639fc0b29d2c390f3
cites cdi_FETCH-LOGICAL-c394t-8d7cc26d4f18007700354f2561d089c94de5950faaf1a7c7639fc0b29d2c390f3
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container_title International dairy journal
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creator Kalit, S.
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description Tounj cheese is a semi-hard, full-fat, smoked, farmhouse, fresh Croatian cheese that is produced from raw milk. It was presumed that using a ripening process would develop a new type of cheese. The objective of this study was to follow the basic proteolytic changes during the ripening of Tounj cheese and to determine the optimal ripening time in terms of the sensory quality of the cheese. Urea-polyacrylamide gel electrophoresis showed that α s1-casein was degraded during ripening to α s1-I-casein, α s1-II-casein and some undefined products ( P < 0.05 ). The degradation of ß-casein was less extensive but significant ( P < 0.05 ), and was due to the action of plasmin. The water-soluble nitrogen fraction and the 12%-trichloroacetic-acid-soluble nitrogen fraction increased during ripening ( P < 0.05 ). In terms of sensory quality, the optimal ripening time of Tounj cheese was determined to be 4 weeks.
doi_str_mv 10.1016/j.idairyj.2004.09.010
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source ScienceDirect Journals
subjects alphaS1-casein
beta-casein
Biological and medical sciences
cheese ripening
cheeses
duration
flavor
Food industries
food quality
fresh cheeses
Fundamental and applied biological sciences. Psychology
Milk and cheese industries. Ice creams
Proteolysis
Ripening
sensory properties
Sensory quality
smoked cheeses
Tounj cheese
title Proteolysis and the optimal ripening time of Tounj cheese
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