ACEI and antioxidant peptides release during ripening of Mexican Cotija hard cheese

Leticia Hernández-Galán, Anaberta Cardador-Martínez, Daniel Picque, Henry Spinnler, Micloth López-del-Castillo Lozano and Sandra Martín del Campo

Journal of Food Research, 2016, vol. 5, issue 3

Abstract: Cotija cheese is an artisanal Mexican cheese produced with raw cow´s milk. Our objective was to measure the antioxidant and angiotensin converting enzyme (ACE) inhibitory activities of the peptides released during its ripening. For that, Cotija cheeses were ripened 6 months in a chamber at 25 ºC without humidity control. Weekly samples were taken to determine acid soluble nitrogen (ASN), non-protein nitrogen (NPN) and ethanol soluble nitrogen (EtOH-SN) indexes, by Kjeldahl method. Antioxidant and ACE inhibitory activities were measured by spectrophotometry and HPLC methods, respectively. Peptides in each nitrogen fraction were determined by HPLC. Our results showed that during ripening of Cotija cheeses peptides with antioxidant and ACE inhibitory activities were released and increased through ripening time reaching a maximum of 79.8 % of 2,2- diphenyl-1-picrylhydrazyl (DPPH) discoloration and 100 % of ACE inhibition at the end of ripening. Both activities were highly correlated with the types of peptides present in each fraction.

Keywords: Dairy; Production/Industries (search for similar items in EconPapers)
Date: 2016
References: Add references at CitEc
Citations:

Downloads: (external link)
https://ageconsearch.umn.edu/record/405359/files/58291-211636-1-PB.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:ags:aesjfr:405359

Access Statistics for this article

More articles in Journal of Food Research from Canadian Center of Science and Education
Bibliographic data for series maintained by AgEcon Search ().