Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>

The hydrolysis of raw food sources by commercially available food-grade enzymes releases thousands of peptides. The full characterization of bioactive hydrolysates requires robust methods to identify and quantify key peptides in these food sources. For this purpose, the absolute quantification of sp...

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Main Authors: Jean Manguy, Georgios I. Papoutsidakis, Ben Doyle, Sanja Trajkovic
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Foods
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Online Access:https://www.mdpi.com/2304-8158/14/7/1180
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author Jean Manguy
Georgios I. Papoutsidakis
Ben Doyle
Sanja Trajkovic
author_facet Jean Manguy
Georgios I. Papoutsidakis
Ben Doyle
Sanja Trajkovic
author_sort Jean Manguy
collection DOAJ
description The hydrolysis of raw food sources by commercially available food-grade enzymes releases thousands of peptides. The full characterization of bioactive hydrolysates requires robust methods to identify and quantify key peptides in these food sources. For this purpose, the absolute quantification of specific peptides, part of a complex peptide network, is necessary. Protein quantification with synthetic tryptic peptides as internal standards is a well-known approach, yet the quantification of non-tryptic peptides contained in food hydrolysates is still largely unaddressed. Similarly, data analyses focus on proteomic applications, thus adding challenges to the study of specific peptides of interest. This paper presents an in-sample calibration curve methodology for the identification of three non-tryptic peptides present in a <i>Vicia faba</i> food hydrolysate (PeptiStrong™) using heavy synthetic peptides as both calibrants and internal standards.
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spelling doaj-art-afe4603a618b4e8fb3975742d43ea2322025-08-20T03:08:55ZengMDPI AGFoods2304-81582025-03-01147118010.3390/foods14071180Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>Jean Manguy0Georgios I. Papoutsidakis1Ben Doyle2Sanja Trajkovic3Nuritas Limited, Joshua Dawson House, 19B Dawson Street, Dublin 2, D02 RY95 Dublin, IrelandNuritas Limited, Joshua Dawson House, 19B Dawson Street, Dublin 2, D02 RY95 Dublin, IrelandNuritas Limited, Joshua Dawson House, 19B Dawson Street, Dublin 2, D02 RY95 Dublin, IrelandNuritas Limited, Joshua Dawson House, 19B Dawson Street, Dublin 2, D02 RY95 Dublin, IrelandThe hydrolysis of raw food sources by commercially available food-grade enzymes releases thousands of peptides. The full characterization of bioactive hydrolysates requires robust methods to identify and quantify key peptides in these food sources. For this purpose, the absolute quantification of specific peptides, part of a complex peptide network, is necessary. Protein quantification with synthetic tryptic peptides as internal standards is a well-known approach, yet the quantification of non-tryptic peptides contained in food hydrolysates is still largely unaddressed. Similarly, data analyses focus on proteomic applications, thus adding challenges to the study of specific peptides of interest. This paper presents an in-sample calibration curve methodology for the identification of three non-tryptic peptides present in a <i>Vicia faba</i> food hydrolysate (PeptiStrong™) using heavy synthetic peptides as both calibrants and internal standards.https://www.mdpi.com/2304-8158/14/7/1180peptidomicsfood hydrolysatepeptideabsolute quantificationmass spectrometry
spellingShingle Jean Manguy
Georgios I. Papoutsidakis
Ben Doyle
Sanja Trajkovic
Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>
Foods
peptidomics
food hydrolysate
peptide
absolute quantification
mass spectrometry
title Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>
title_full Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>
title_fullStr Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>
title_full_unstemmed Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>
title_short Quantification of Peptides in Food Hydrolysate from <i>Vicia faba</i>
title_sort quantification of peptides in food hydrolysate from i vicia faba i
topic peptidomics
food hydrolysate
peptide
absolute quantification
mass spectrometry
url https://www.mdpi.com/2304-8158/14/7/1180
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AT sanjatrajkovic quantificationofpeptidesinfoodhydrolysatefromiviciafabai