Journal
3 BIOTECH
Volume 10, Issue 3, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13205-020-2075-z
Keywords
Lighvan cheese; Ripening; Metabolomics; GC-MS; GABA
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Funding
- Department of Food Science and Technology in Isfahan University of Technology (Isfahan, Iran)
- Department of Medicinal chemistry in Shaheed Beheshti University of Medical sciences (Tehran, Iran)
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In this study, the effect of pasteurization and use of starter cultures on physicochemical, microbiological and functional properties of a traditional Iranian semi-hard cheese (Lighvan cheese) was evaluated during stages of ripening (1, 60, 120 days). Profiles of polar metabolites were analyzed by gas-chromatography mass-spectrometry (GC-MS). Considerable free amino acids such as gamma-aminobutyric acid (GABA) were found in samples that have higher microbial communities i.e. raw sheep's milk without use of starter cultures and pasteurized sheep's milk cheese with co-culture. However, GABA was not found in pasteurized sheep's milk cheese without starter culture during ripening. Conclusively, the application of the starter culture could reduce the ripening time of sheep's milk cheese and could be an appropriate approach to increase the functionality of the sheep's milk cheese.
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