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Food Research International
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Food Research International
Article . 2016 . Peer-reviewed
License: Elsevier TDM
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Free amino acids and bioactive peptides profile of Pastırma during its processing

Authors: Deniz, Ebru; Mora, Leticia; Aristoy, María Concepción; Candoğan, Kezban; Toldrá Vilardell, Fidel;

Free amino acids and bioactive peptides profile of Pastırma during its processing

Abstract

This study is focused on the characterization of the proteolysis occurred during the processing of Pastırma, a traditional Turkish dry-cured meat product, which is responsible for its final characteristics. Thus, the evaluation of naturally generated free amino acids and peptides present at 0, 2, 5, 10, and 21days of processing and the bioactivity of peptide fractions have been approached. Peptides were examined by MALDI-TOF and results showed differences in the amount of generated peptides at different times of processing, and a total of 29 peptides were newly generated at Day 21 in comparison with Day 2 during processing. The water soluble fraction of Pastırma at the end of the curing period (Day 21) was also analyzed by size-exclusion chromatography and some of the collected fractions demonstrated strong ACE-inhibitory and antioxidant activities. In fact, Pastırma showed an ACE inhibitory activity higher than 86% from 220 to 270mL corresponding to molecular masses between 900 and 1500Da, and also a DPPH radical-scavenging activity above 60% at 250 to 300mL corresponding to molecular masses between 700 and 2000Da. Thus, Pastırma represents a good source of natural ACE-inhibitory and antioxidant peptides which might be due to the proteolysis occurred by endogenous enzymes and the contribution of the çemen paste used in production.

Keywords

Free amino acids, Antioxidant activity, Antihypertensive effects, Proteolysis, Pastırma, Bioactive peptides

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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