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Challenges in the quantitation of naturally generated bioactive peptides in processed meats

AuthorsMora, Leticia ; Gallego, Marta ; Reig, Milagro; Toldrá Vilardell, Fidel
KeywordsNaturally generated peptides
Bioactive peptides
Small peptides
Dry-cured meat
Dry-cured ham
Dry-fermented sausages
Issue Date29-Apr-2017
CitationTrends in Food Science and Technology 69 (b): 306-314 (2017)
AbstractBackground: The final characteristics of processed meats depend on many factors but one of the most important is the intense proteolysis occurred in muscle proteins due to the action of endogenous enzymes in dry-cured ham, and also microbial peptidases in the case of dry-fermented meats, that not only affects taste and flavour but also the generation of bioactive peptides. Scope and approach: In this review main difficulties in the identification of bioactive peptides in processed meats have been described. This study highlights the novel strategies used during the last years to identify naturally generated peptides, and emphasises the need of robust quantitative methodologies for the adequate characterisation of their bioavailability. In fact, the most common and well established quantitation approaches using proteomics are not adapted for peptidomics analysis, so alternative strategies need to be considered. Key findings and conclusions: The progress in the identification and characterisation of the activity of natural bioactive peptides is highly dependent on modern instruments and bioinformatics tools as well as updated protein databases. In fact, the use of in silico approaches and proteomics can be complementary tools in the identification of peptides from meat protein sources as the empirical experimental design can be simplified by using bioinformatics for computer simulation in most of the steps. Finally, Multiple Reaction Monitoring mass spectrometry methodology previously used in the quantitation of therapeutic peptides and biomarkers arises as a powerful tool for absolute quantitation or semi-quantitation of bioactive peptides.
Publisher version (URL)https://doi.org/10.1016/j.tifs.2017.04.011
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