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Ju M, Cui M, Piao C, Mu B, Zhang J, Xing L, Zhao C, Li G, Zhang W. Investigating the effects of low-salt processing on the umami peptides of dry-cured ham using peptidomics techniques. Food Chem 2024; 457:140203. [PMID: 38936124 DOI: 10.1016/j.foodchem.2024.140203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Revised: 06/02/2024] [Accepted: 06/22/2024] [Indexed: 06/29/2024]
Abstract
This study investigated the effect of low-salt processing on the umami peptide profile of dry-cured hams. Peptidomics data showed 633 umami peptides in the low- and full-salt groups. Among them, 36.2% and 26.5% of shared umami peptides in the low-salt group were significantly down- and up-regulated in relative abundance. Multivariate statistical analysis showed 1011 significantly different umami peptides (SDUPs) in the low- and full-salt groups. Creatine kinase M-type (CKM) and fast skeletal muscle troponin T (TnTf) were the main precursor proteins of these SDUPs. At the end of processing, the relative expression of CKM was lower in the low-salt group than in the full-salt group (P < 0.05), but there was no significant difference in TnTf. More dipeptidyl peptidase cleavage sites were observed in CKM and TnTf proteins in the low-salt group.
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Affiliation(s)
- Ming Ju
- Agricultural College of Yanbian University, Jilin Province, Yanji 133000, China; College of Food Science and Technology; Nanjing Agricultural University; Jiangsu Province, Nanjing 210095, China; Food Research Center of Yanbian University, Jilin Province, Yanji 133000, China
| | - Mingxun Cui
- Agricultural College of Yanbian University, Jilin Province, Yanji 133000, China; Food Research Center of Yanbian University, Jilin Province, Yanji 133000, China
| | - Chunxiang Piao
- Agricultural College of Yanbian University, Jilin Province, Yanji 133000, China
| | - Baide Mu
- Agricultural College of Yanbian University, Jilin Province, Yanji 133000, China; Food Research Center of Yanbian University, Jilin Province, Yanji 133000, China
| | - Jian Zhang
- College of Food Science and Light Industry, Nanjing Tech University, Jiangsu Province, Nanjing 211816, China
| | - Lujuan Xing
- College of Food Science and Technology; Nanjing Agricultural University; Jiangsu Province, Nanjing 210095, China
| | - Changcheng Zhao
- School of Life Science, Zhengzhou University, Henan Province, Zhengzhou 450001, China
| | - Guanhao Li
- Agricultural College of Yanbian University, Jilin Province, Yanji 133000, China; Food Research Center of Yanbian University, Jilin Province, Yanji 133000, China.
| | - Wangang Zhang
- College of Food Science and Technology; Nanjing Agricultural University; Jiangsu Province, Nanjing 210095, China.
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2
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Schrader M. Origins, Technological Advancement, and Applications of Peptidomics. Methods Mol Biol 2024; 2758:3-47. [PMID: 38549006 DOI: 10.1007/978-1-0716-3646-6_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Abstract
Peptidomics is the comprehensive characterization of peptides from biological sources instead of heading for a few single peptides in former peptide research. Mass spectrometry allows to detect a multitude of peptides in complex mixtures and thus enables new strategies leading to peptidomics. The term was established in the year 2001, and up to now, this new field has grown to over 3000 publications. Analytical techniques originally developed for fast and comprehensive analysis of peptides in proteomics were specifically adjusted for peptidomics. Although it is thus closely linked to proteomics, there are fundamental differences with conventional bottom-up proteomics. Fundamental technological advancements of peptidomics since have occurred in mass spectrometry and data processing, including quantification, and more slightly in separation technology. Different strategies and diverse sources of peptidomes are mentioned by numerous applications, such as discovery of neuropeptides and other bioactive peptides, including the use of biochemical assays. Furthermore, food and plant peptidomics are introduced similarly. Additionally, applications with a clinical focus are included, comprising biomarker discovery as well as immunopeptidomics. This overview extensively reviews recent methods, strategies, and applications including links to all other chapters of this book.
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Affiliation(s)
- Michael Schrader
- Department of Bioengineering Sciences, Weihenstephan-Tr. University of Applied Sciences, Freising, Germany.
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3
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Bioactive and Sensory Di- and Tripeptides Generated during Dry-Curing of Pork Meat. Int J Mol Sci 2023; 24:ijms24021574. [PMID: 36675084 PMCID: PMC9866438 DOI: 10.3390/ijms24021574] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Dry-cured pork products, such as dry-cured ham, undergo an extensive proteolysis during manufacturing process which determines the organoleptic properties of the final product. As a result of endogenous pork muscle endo- and exopeptidases, many medium- and short-chain peptides are released from muscle proteins. Many of them have been isolated, identified, and characterized, and some peptides have been reported to exert relevant bioactivity with potential benefit for human health. However, little attention has been given to di- and tripeptides, which are far less known, although they have received increasing attention in recent years due to their high potential relevance in terms of bioactivity and role in taste development. This review gathers the current knowledge about di- and tripeptides, regarding their bioactivity and sensory properties and focusing on their generation during long-term processing such as dry-cured pork meats.
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4
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Agregán R, Pateiro M, Kumar M, Franco D, Capanoglu E, Dhama K, Lorenzo JM. The potential of proteomics in the study of processed meat products. J Proteomics 2023; 270:104744. [PMID: 36220542 DOI: 10.1016/j.jprot.2022.104744] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/06/2022]
Abstract
Proteomics is a field that has grown rapidly since its emergence in the mid-1990s, reaching many disciplines such as food technology. The application of proteomic techniques in the study of complex biological samples such as foods, specifically meat products, allows scientists to decipher the underlying cellular mechanisms behind different quality traits. Lately, much emphasis has been placed on the discovery of biomarkers that facilitate the prediction of biochemical transformations of the product and provide key information on parameters associated with traceability and food safety. This review study focuses on the contribution of proteomics in the improvement of processed meat products. Different techniques and strategies have recently been successfully carried out in the study of the proteome of these products that can help the development of foods with a higher sensory quality, while ensuring consumer safety through early detection of microbiological contamination and fraud. SIGNIFICANCE: The food industry and the academic world work together with the aim of responding to market demands, always seeking excellence. In particular, the meat industry has to face a series of challenges such as, achieving sensory attributes in accordance with the standards required by the consumer and maintaining a high level of safety and transparency, avoiding deliver adulterated and/or contaminated products. This review work exposes how the aforementioned challenges are attempted to be solved through proteomic technology, discussing the latest and most outstanding research in this regard, which undoubtedly contribute to improving the quality, in all the extension of the word, of meat products, providing relevant knowledge in the field of proteomic research.
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Affiliation(s)
- Rubén Agregán
- Centro Tecnológico de la Carne de Galicia, Adva. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain
| | - Mirian Pateiro
- Centro Tecnológico de la Carne de Galicia, Adva. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain
| | - Manoj Kumar
- Chemical and Biochemical Processing Division, ICAR-Central Institute for Research on Cotton Technology, Mumbai 400019, India
| | - Daniel Franco
- Centro Tecnológico de la Carne de Galicia, Adva. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain; Department of Chemical Engineering, Universidade de Santiago de Compostela, Campus Vida, 15782 Santiago de Compostela, Spain.
| | - Esra Capanoglu
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
| | - Kuldeep Dhama
- Division of Pathology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, 243122 Bareilly, Uttar Pradesh, India
| | - José M Lorenzo
- Centro Tecnológico de la Carne de Galicia, Adva. Galicia n° 4, Parque Tecnológico de Galicia, San Cibrao das Viñas, 32900 Ourense, Spain; Universidade de Vigo, Área de Tecnoloxía dos Alimentos, Facultade de Ciencias de Ourense, 32004 Ourense, Spain.
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5
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Identification and Quantitation of Bioactive and Taste-Related Dipeptides in Low-Salt Dry-Cured Ham. Int J Mol Sci 2022; 23:ijms23052507. [PMID: 35269650 PMCID: PMC8910418 DOI: 10.3390/ijms23052507] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 02/22/2022] [Indexed: 01/27/2023] Open
Abstract
The reduction of salt in meat products influences the natural mechanisms of proteolysis occurring in their processing, and could affect the final characteristics of the product in terms of texture and flavor due to its effect on the activity of enzymes. In the present study, the quantitation of dipeptides PA, GA, VG, EE, ES, DA, and DG in low-salt Spanish dry-cured ham was carried out using a triple quadrupole mass spectrometry instrument. The developed methodology demonstrated the advantages of hydrophilic interaction liquid chromatography in the removal of salt as a clean-up/separation step before ionization. This resulted in a value of 44.88 μg/g dry-cured ham for GA dipeptide, and values ranging from 2 to 8 μg/g dry-cured ham for VG, EE, ES, DA, and DG dipeptides. PA showed the lowest concentration with a value of 0.18 μg/g dry-cured ham. These outcomes prove the remarkable activity of muscular dipeptidyl peptidases during dry-curing as well as confirming the presence of these dipeptides which are related to certain taste attributes (e.g., ‘bitter’ or ‘umami’). Such dipeptides have also been confirmed as anti-inflammatory and potential cardiovascular protectors using in vitro assays, with the advantage of dipeptides small size increases their chance to resist both gastrointestinal digestion and intestinal/bloodstream transport without being degraded or modified.
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Gallego M, Toldrá F, Mora L. Quantification and in silico analysis of taste dipeptides generated during dry-cured ham processing. Food Chem 2022; 370:130977. [PMID: 34509941 DOI: 10.1016/j.foodchem.2021.130977] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 08/26/2021] [Accepted: 08/27/2021] [Indexed: 12/11/2022]
Abstract
Small peptides such as dipeptides contribute to a great extent to the characteristic taste of dry-cured hams. In this study, hydrophilic interaction liquid chromatography (HILIC) combined to tandem mass spectrometry was used to separate, identify, and quantify seven dipeptides in dry-cured hams sampled at different processing times (6, 12, 18, and 24 months). Results showed an increased concentration of dipeptides DA, DG, EE, ES, and EV with the length of processing, obtaining values up to 23 μg/g of dry-cured ham, which suggests an intense action of muscle enzymes dipeptidyl peptidases during the process. The dipeptide VG significantly decreased from 7 to 4 μg/g of dry-cured ham as the processing increased from 6 to 24 months, whereas the dipeptide PA showed low values between 380 and 550 ng/g of dry-cured ham at all the sampling times. Additionally, in silico analyses reported the sensory characteristics of the studied dipeptides, mostly giving bitter and umami taste, and predicted their allergenicity, toxicity, and physicochemical properties. These results could be useful for further studies related to the pleasant taste of dry-cured hams.
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Affiliation(s)
- Marta Gallego
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain.
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7
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YAN Z, LI W, HU R, MA Q, LU Z. Quantitative proteomic comparison of protein differences in different parts of yak meat. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.62020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Zhongxin YAN
- Northwest A & F University, China; Qinghai University, China; Key Laboratory of Plateau Grazing Animal Nutrition and Feed Science of Qinghai Province, China
| | - Wei LI
- Qinghai University, China
| | | | - Qingmei MA
- Animal Husbandry and Veterinary Medicine Station of Haiyan County, China
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8
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Heres A, Yokoyama I, Gallego M, Toldrá F, Arihara K, Mora L. Antihypertensive potential of sweet Ala-Ala dipeptide and its quantitation in dry-cured ham at different processing conditions. J Funct Foods 2021. [DOI: 10.1016/j.jff.2021.104818] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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9
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Heres A, Saldaña C, Toldrá F, Mora L. Identification of dipeptides by MALDI-ToF mass spectrometry in long-processing Spanish dry-cured ham. FOOD CHEMISTRY: MOLECULAR SCIENCES 2021; 3:100048. [PMID: 35415658 PMCID: PMC8991613 DOI: 10.1016/j.fochms.2021.100048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 10/18/2021] [Accepted: 10/23/2021] [Indexed: 11/27/2022]
Abstract
A simpler strategy was carried out to identify dipeptides in dry-cured ham. Ultrafiltration following MALDI-ToF MS allows a rapid peptide identification. AH, AL, DD, EV and VF were identified in samples with different processing times. Bioactive or tasting food-derived dipeptides can be identified by this methodology.
The processing of dry-cured ham results in the generation of small peptides by the action of endogenous enzymes on muscle proteins. Common proteomic workflows involve previous separation techniques based on liquid chromatography which are expensive and time-consuming. In this study, a convenient proteomic approach based on MALDI-ToF is proposed for the first time for the detection of dipeptides in Spanish dry-cured ham. Dipeptides AH, AL, DD, EV, and VF were identified in hams of 18 and 24 months of dry-curing. This work provides insights on the efficiency of a new peptidomic workflow for the short peptide identification from a complex food matrix and permits to evaluate the sample in terms of the presence of taste-related and bioactive dipeptides.
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10
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Characterization of Umami Dry-Cured Ham-Derived Dipeptide Interaction with Metabotropic Glutamate Receptor (mGluR) by Molecular Docking Simulation. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11178268] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Dry-cured ham-derived dipeptides, generated along a dry-curing process, are of high importance since they play a role in flavor development of dry-cured ham. The objective of this study was to analyze the residues of the less-studied metabotropic glutamate receptor 1 (mGluR1) implicated in the recognition of umami dry-cured ham dipeptides by molecular docking simulation using the AutoDock Suite tool. AH, DA, DG, EE, ES, EV, and VG (and glutamate) were found to attach the enzyme with inhibition constants ranging from 12.32 µM (AH) to 875.75 µM (ES) in the case if Rattus norvegicus mGluR1 and 17.44 µM (VG) to 294.68 µM (DG) in the case of Homo sapiens, in the open–open conformations. Main interactions were done with key receptor residues Tyr74, Ser186, Glu292, and Lys409; and Ser165, Ser186, and Asp318, respectively, for the two receptors in the open–open conformations. However, more residues may be involved in the complex stabilization. Specifically, AH, EE and ES relatively established a higher number of H-bonds, but AH, EV, and VG presented relatively lower Ki values in all cases. The results obtained here could provide information about structure and taste relationships and constitute a theoretical reference for the interactions of novel umami food-derived peptides.
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11
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Heres A, Mora L, Toldrá F. Inhibition of 3-hydroxy-3-methyl-glutaryl-coenzyme A reductase enzyme by dipeptides identified in dry-cured ham. FOOD PRODUCTION, PROCESSING AND NUTRITION 2021. [DOI: 10.1186/s43014-021-00058-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AbstractHigh cholesterolemia is a key risk factor for the development of cardiovascular diseases, which are the main cause of mortality in developed countries. Most therapies are focused on the modulation of its biosynthesis through 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMG-CoAR) inhibitors. In this sense, food-derived bioactive peptides might act as promising health alternatives through their ability to interact with crucial enzymes involved in metabolic pathways, avoiding the adverse effects of synthetic drugs. Dry-cured ham has been widely described as an important source of naturally-generated bioactive peptides exerting ACEI-inhibitory activity, antioxidant activity, and anti-inflammatory activity between others. Based on these findings, the aim of this work was to assess, for the first time, the in vitro inhibitory activity of HMG-CoAR exerted by dipeptides generated during the manufacturing of dry-cured ham, previously described with relevant roles on other bioactivities.The in vitro inhibitory activity of the dipeptides was assessed by measuring the substrate consumption rate of the 3-hydroxy-3-methylglutaryl CoA reductase in their presence, with the following pertinent calculations.Further research was carried out to estimate the possible interactions of the most bioactive dipeptides with the enzyme by performing in silico analysis consisting of molecular docking approaches.Main findings showed DA, DD, EE, ES, and LL dipeptides as main HMG-CoAR inhibitors. Additionally, computational analysis indicated statin-like interactions of the dipeptides with HMG-CoAR.This study reveals, for the first time, the hypocholesterolemic potential of dry-cured ham-derived dipeptides and, at the same time, converges in the same vein as many reports that experimentally argue the cardiovascular benefits of dry-cured ham consumption due to its bioactive peptide content.
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12
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Zhou CY, Pan DD, Cao JX, Zhou GH. A comprehensive review on molecular mechanism of defective dry-cured ham with excessive pastiness, adhesiveness, and bitterness by proteomics insights. Compr Rev Food Sci Food Saf 2021; 20:3838-3857. [PMID: 34118135 DOI: 10.1111/1541-4337.12779] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 04/14/2021] [Accepted: 05/03/2021] [Indexed: 02/01/2023]
Abstract
Excessive bitterness, pastiness, and adhesiveness are the main organoleptic and textural defects of dry-cured ham, which often cause a lot of financial losses to manufacturers and seriously damage the quality of the product. These sensory and textural defects are related to the protein degradation of dry-cured ham. Proteomics shows great potential to improve our understanding of the molecular mechanism of sensory and textural defects and identify biomarkers for monitoring their quality traits. This review presents some of the major achievements and considerations in organoleptic and textural defects of dry-cured ham by proteomics analysis in the recent decades and gives an overview about how to correct sensory and textural defects of dry-cured ham. Proteomics reveals that muscle proteins derived from myofibril and cytoskeleton and involved in metabolic enzymes and oxygen transport have been identified as potential biomarkers in defective dry-cured ham. Relatively high residual activities of cathepsin B and L are responsible for the excessive degradation of these protein biomarkers in defective dry-cured ham. Ultrasound-assisted mild thermal or high-pressure treatment shows a good correction for the organoleptic and textural defects of dry-cured ham by changing microstructure and conformation of muscle proteins by accelerating degradation of proteins and polypeptides into free amino acids.
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Affiliation(s)
- Chang-Yu Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China.,Key Laboratory of Meat Processing and Quality Control, MOE, Nanjing Agricultural University, Nanjing, P.R. China.,Key Laboratory of Meat Processing, MOA, Nanjing Agricultural University, Nanjing, P.R. China.,Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, Nanjing Agricultural University, Nanjing, P.R. China
| | - Dao-Dong Pan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Jin-Xuan Cao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China.,Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food & Pharmaceutical Sciences, Ningbo University, Ningbo, P.R. China
| | - Guang-Hong Zhou
- Key Laboratory of Meat Processing and Quality Control, MOE, Nanjing Agricultural University, Nanjing, P.R. China.,Key Laboratory of Meat Processing, MOA, Nanjing Agricultural University, Nanjing, P.R. China.,Jiangsu Synergetic Innovation Center of Meat Processing and Quality Control, Nanjing Agricultural University, Nanjing, P.R. China
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13
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Li KJ, Brouwer-Brolsma EM, Burton-Pimentel KJ, Vergères G, Feskens EJM. A systematic review to identify biomarkers of intake for fermented food products. GENES AND NUTRITION 2021; 16:5. [PMID: 33882831 PMCID: PMC8058972 DOI: 10.1186/s12263-021-00686-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 03/30/2021] [Indexed: 12/22/2022]
Abstract
Background Fermented foods are ubiquitous in human diets and often lauded for their sensory, nutritious, and health-promoting qualities. However, precise associations between the intake of fermented foods and health have not been well-established. This is in part due to the limitations of current dietary assessment tools that rely on subjective reporting, making them prone to memory-related errors and reporting bias. The identification of food intake biomarkers (FIBs) bypasses this challenge by providing an objective measure of intake. Despite numerous studies reporting on FIBs for various types of fermented foods and drinks, unique biomarkers associated with the fermentation process (“fermentation-dependent” biomarkers) have not been well documented. We therefore conducted a comprehensive, systematic review of the literature to identify biomarkers of fermented foods commonly consumed in diets across the world. Results After title, abstract, and full-text screening, extraction of data from 301 articles resulted in an extensive list of compounds that were detected in human biofluids following the consumption of various fermented foods, with the majority of articles focusing on coffee (69), wine (69 articles), cocoa (62), beer (34), and bread (29). The identified compounds from all included papers were consolidated and sorted into FIBs proposed for a specific food, for a food group, or for the fermentation process. Alongside food-specific markers (e.g., trigonelline for coffee), and food-group markers (e.g., pentadecanoic acid for dairy intake), several fermentation-dependent markers were revealed. These comprised compounds related to the fermentation process of a particular food, such as mannitol (wine), 2-ethylmalate (beer), methionine (sourdough bread, cheese), theabrownins (tea), and gallic acid (tea, wine), while others were indicative of more general fermentation processes (e.g., ethanol from alcoholic fermentation, 3-phenyllactic acid from lactic fermentation). Conclusions Fermented foods comprise a heterogeneous group of foods. While many of the candidate FIBs identified were found to be non-specific, greater specificity may be observed when considering a combination of compounds identified for individual fermented foods, food groups, and from fermentation processes. Future studies that focus on how fermentation impacts the composition and nutritional quality of food substrates could help to identify novel biomarkers of fermented food intake. Supplementary Information The online version contains supplementary material available at 10.1186/s12263-021-00686-4.
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Affiliation(s)
- Katherine J Li
- Division of Human Nutrition and Health, Department of Agrotechnology and Food Science, Wageningen University & Research, Wageningen, Netherlands. .,Food Microbial Systems Research Division, Federal Department of Economic Affairs, Education and Research (EAER), Federal Office for Agriculture (FOAG), Agroscope, Bern, Switzerland.
| | - Elske M Brouwer-Brolsma
- Division of Human Nutrition and Health, Department of Agrotechnology and Food Science, Wageningen University & Research, Wageningen, Netherlands
| | - Kathryn J Burton-Pimentel
- Food Microbial Systems Research Division, Federal Department of Economic Affairs, Education and Research (EAER), Federal Office for Agriculture (FOAG), Agroscope, Bern, Switzerland
| | - Guy Vergères
- Food Microbial Systems Research Division, Federal Department of Economic Affairs, Education and Research (EAER), Federal Office for Agriculture (FOAG), Agroscope, Bern, Switzerland
| | - Edith J M Feskens
- Division of Human Nutrition and Health, Department of Agrotechnology and Food Science, Wageningen University & Research, Wageningen, Netherlands
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14
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López-Pedrouso M, Lorenzo JM, Gagaoua M, Franco D. Application of Proteomic Technologies to Assess the Quality of Raw Pork and Pork Products: An Overview from Farm-To-Fork. BIOLOGY 2020; 9:E393. [PMID: 33187082 PMCID: PMC7696211 DOI: 10.3390/biology9110393] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 11/05/2020] [Accepted: 11/10/2020] [Indexed: 12/11/2022]
Abstract
The quality assurance of pork meat and products includes the study of factors prior to slaughter such as handling practices, diet and castration, and others during the post-mortem period such as aging, storage, and cooking. The development over the last two decades of high-throughput techniques such as proteomics offer great opportunities to examine the molecular mechanisms and study a priori the proteins in the living pigs and main post-mortem changes and post-translational modifications during the conversion of the muscle into the meat. When the most traditional crossbreeding and rearing strategies to improve pork quality were assessed, the main findings indicate that metabolic pathways early post-mortem were affected. Among the factors, it is well documented that pre-slaughter stress provokes substantial changes in the pork proteome that led to defective meat, and consequently, novel protein biomarkers should be identified and validated. Additionally, modifications in pork proteins had a strong effect on the sensory attributes due to the impact of processing, either physical or chemical. Maillard compounds and protein oxidation should be monitored in order to control proteolysis and volatile compounds. Beyond this, the search of bioactive peptides is becoming a paramount goal of the food and nutraceutical industry. In this regard, peptidomics is a major tool to identify and quantify these peptides with beneficial effects for human health.
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Affiliation(s)
- María López-Pedrouso
- Department of Zoology, Genetics and Physical Anthropology, University of Santiago de Compostela, 15872 Santiago de Compostela, Spain;
| | - José M. Lorenzo
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia N° 4, Parque Tecnológico de Galicia, 32900 San Cibrao das Viñas, Spain;
- Área de Tecnología de los Alimentos, Facultad de Ciencias de Ourense, Universidad de Vigo, 32004 Ourense, Spain
| | - Mohammed Gagaoua
- Food Quality and Sensory Science Department, Teagasc Ashtown Food Research Centre, Ashtown, D15 DY05 Dublin 15, Ireland;
| | - Daniel Franco
- Centro Tecnológico de la Carne de Galicia, Rúa Galicia N° 4, Parque Tecnológico de Galicia, 32900 San Cibrao das Viñas, Spain;
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Xiao C, Toldrá F, Zhou F, Gallego M, Zhao M, Mora L. Effect of cooking and in vitro digestion on the peptide profile of chicken breast muscle and antioxidant and alcohol dehydrogenase stabilization activity. Food Res Int 2020; 136:109459. [DOI: 10.1016/j.foodres.2020.109459] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 06/12/2020] [Accepted: 06/16/2020] [Indexed: 02/03/2023]
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16
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Insights into the evolution of myosin light chain isoforms and its effect on sensory defects of dry-cured ham. Food Chem 2020; 315:126318. [PMID: 32035317 DOI: 10.1016/j.foodchem.2020.126318] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 01/22/2020] [Accepted: 01/27/2020] [Indexed: 01/15/2023]
Abstract
To better understand the contribution of myosin light chain (MLC) isoforms to sensory defects in Jinhua ham, dipeptidyl peptidase (DPP) activities, peptide fragments, cleavage sites and the potential of DPP to develop sensory defects of dry-cured ham were evaluated and discussed in normal and defective hams. Higher residual activities of DPP I were found in defective ham compared with normal ham; approximate 3-fold peptide fragments were identified in defective ham than in normal ham. These regions of positions 11-35 and 116-141 in MLC 1, 13-53 and 139-156 in MLC 2, and 18-50 in MLC 3 contributed to the intense generation of peptide fragments in defective ham. PLS-DA further revealed DPP I showing intense response to degrade peptides. Cleavage sites including Glu-128, Tyr-132 and Glu-133 were responsible for the intense release of dipeptides in defective ham. These cleavages could play key role in discriminating taste attributes between defective and normal hams.
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17
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Gallego M, Mauri L, Aristoy MC, Toldrá F, Mora L. Antioxidant peptides profile in dry-cured ham as affected by gastrointestinal digestion. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103956] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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18
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Zhou CY, Wu JQ, Tang CB, Li G, Dai C, Bai Y, Li CB, Xu XL, Zhou GH, Cao JX. Comparing the proteomic profile of proteins and the sensory characteristics in Jinhua ham with different processing procedures. Food Control 2019. [DOI: 10.1016/j.foodcont.2019.06.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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19
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Zhou CY, Wang C, Tang CB, Dai C, Bai Y, Yu XB, Li CB, Xu XL, Zhou GH, Cao JX. Label-free proteomics reveals the mechanism of bitterness and adhesiveness in Jinhua ham. Food Chem 2019; 297:125012. [DOI: 10.1016/j.foodchem.2019.125012] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 06/10/2019] [Accepted: 06/13/2019] [Indexed: 12/22/2022]
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20
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Gallego M, Mora L, Toldrá F. The relevance of dipeptides and tripeptides in the bioactivity and taste of dry-cured ham. FOOD PRODUCTION, PROCESSING AND NUTRITION 2019. [DOI: 10.1186/s43014-019-0002-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Mora L, M G, F T. Degradation of myosin heavy chain and its potential as a source of natural bioactive peptides in dry-cured ham. FOOD BIOSCI 2019. [DOI: 10.1016/j.fbio.2019.100416] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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22
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Bioactive peptides and free amino acids profiles in different types of European dry-fermented sausages. Int J Food Microbiol 2018; 276:71-78. [DOI: 10.1016/j.ijfoodmicro.2018.04.009] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/22/2018] [Accepted: 04/04/2018] [Indexed: 12/12/2022]
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23
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Gallego M, Mora L, Toldrá F. Perspectives in the Use of Peptidomics in Ham. Proteomics 2018; 18:e1700422. [DOI: 10.1002/pmic.201700422] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 05/28/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Marta Gallego
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC); Avenue Agustín Escardino 7; 46980 Paterna Valencia Spain
| | - Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC); Avenue Agustín Escardino 7; 46980 Paterna Valencia Spain
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC); Avenue Agustín Escardino 7; 46980 Paterna Valencia Spain
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Abstract
Peptidomics is the comprehensive characterization of peptides from biological sources mainly by HPLC and mass spectrometry. Mass spectrometry allows the detection of a multitude of single peptides in complex mixtures. The term first appeared in full papers in the year 2001, after over 100 years of peptide research with a main focus on one or a few specific peptides. Within the last 15 years, this new field has grown to over 1200 publications. Mass spectrometry techniques, in combination with other analytical methods, were developed for the fast and comprehensive analysis of peptides in proteomics and specifically adjusted to implement peptidomics technologies. Although peptidomics is closely linked to proteomics, there are fundamental differences with conventional bottom-up proteomics. The development of peptidomics is described, including the most important implementations for its technological basis. Different strategies are covered which are applied to several important applications, such as neuropeptidomics and discovery of bioactive peptides or biomarkers. This overview includes links to all other chapters in the book as well as recent developments of separation, mass spectrometric, and data processing technologies. Additionally, some new applications in food and plant peptidomics as well as immunopeptidomics are introduced.
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25
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Challenges in the quantitation of naturally generated bioactive peptides in processed meats. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.04.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Gallego M, Mora L, Hayes M, Reig M, Toldrá F. Effect of cooking and in vitro digestion on the antioxidant activity of dry-cured ham by-products. Food Res Int 2017; 97:296-306. [PMID: 28578055 DOI: 10.1016/j.foodres.2017.04.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 04/21/2017] [Accepted: 04/24/2017] [Indexed: 11/26/2022]
Abstract
Dry-cured ham by-products have been traditionally used in Mediterranean household cooking of broths and stews. The aim of this work was to evaluate the effect of cooking treatments and in vitro gastrointestinal digestion on the antioxidant activity of natural peptides found in bones from Spanish dry-cured hams. The antioxidant activity was tested using five different assays and results demonstrated that cooking using conventional household methods increased the antioxidant activity of ham by-products when assessed using different antioxidant assays with the exception of the ABTS radical scavenging measurement assay. Simulated gastrointestinal digestion showed no significant effect on the antioxidant activity of ham by-products and antioxidant activity decreased when assessed using the ORAC and β-carotene bleaching assays. Analysis by MALDI-TOF MS revealed a considerable breakdown of peptides due to the action of gastrointestinal enzymes, mainly in samples cooked at 100°C for 1h. In addition, 459 peptides derived from 57 proteins were identified and quantified using mass spectrometry in tandem, evidencing that peptides derived from collagen protein were responsible for the differences in antioxidant activities observed between the uncooked and cooked samples after digestion. The results show the potential of dry-cured ham bones as a source of antioxidant peptides that retain their bioactivity after household cooking preparations and gastrointestinal digestion.
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Affiliation(s)
- Marta Gallego
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain.
| | - Maria Hayes
- Teagasc, The Irish Agricultural and Food Development Authority, Food BioSciences Department, Ashtown, Dublin 15, Ireland
| | - Milagro Reig
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universidad Politécnica de Valencia, Camino de Vera s/n, 46022, Valencia, Spain
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
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27
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Changes in the Profiles of Metabolites Originating from Protein Degradation During Ripening of Dry Cured Ham. FOOD BIOPROCESS TECH 2017. [DOI: 10.1007/s11947-017-1894-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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28
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Petrova I, Tolstorebrov I, Mora L, Toldrá F, Eikevik TM. Evolution of proteolytic and physico-chemical characteristics of Norwegian dry-cured ham during its processing. Meat Sci 2016; 121:243-249. [DOI: 10.1016/j.meatsci.2016.06.023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 06/17/2016] [Accepted: 06/20/2016] [Indexed: 11/16/2022]
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29
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Castellano P, Mora L, Escudero E, Vignolo G, Aznar R, Toldrá F. Antilisterial peptides from Spanish dry-cured hams: Purification and identification. Food Microbiol 2016; 59:133-41. [DOI: 10.1016/j.fm.2016.05.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Revised: 05/18/2016] [Accepted: 05/30/2016] [Indexed: 11/27/2022]
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30
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Kęska P, Libera J, Stadnik J. Comparison of Antioxidant Activity of Protein Isolates Derived from Selected Dry-Cured Meat Products. J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.12933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Paulina Kęska
- Department of Meat Technology and Food Quality, Faculty of Food Science and Biotechnology; University of Life Sciences in Lublin; Lublin Poland
| | - Justyna Libera
- Department of Meat Technology and Food Quality, Faculty of Food Science and Biotechnology; University of Life Sciences in Lublin; Lublin Poland
| | - Joanna Stadnik
- Department of Meat Technology and Food Quality, Faculty of Food Science and Biotechnology; University of Life Sciences in Lublin; Lublin Poland
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31
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Wang W, Xia W, Gao P, Xu Y. Sarcoplasmic Protein Hydrolysis Activity ofLactobacillus plantarum120 Isolated from Suanyu: A Traditional Chinese Low Salt Fermented Fish. J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.12821] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weixin Wang
- School of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
- College of Life Science; Huanggang Normal University; Huanggang Hubei 438000 China
| | - Wenshui Xia
- School of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Pei Gao
- School of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
| | - Yanshun Xu
- School of Food Science and Technology; Jiangnan University; Wuxi Jiangsu 214122 China
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32
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Gallego M, Mora L, Toldrá F. Peptidomics as a tool for quality control in dry-cured ham processing. J Proteomics 2016; 147:98-107. [PMID: 26926439 DOI: 10.1016/j.jprot.2016.02.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 02/03/2016] [Accepted: 02/22/2016] [Indexed: 11/16/2022]
Abstract
Spanish dry-cured ham is a high quality product whose economic value is mainly given by its curing time. An intense proteolysis takes place throughout the dry-cured processing, which results in the generation of a high amount of peptides and free amino acids responsible for the final quality of dry-cured hams. In this work, a peptidomics approach has been used to study the evolution of peptides throughout the ham dry-curing process, identifying and quantifying the generated peptides in order to define potential quality biomarkers. For this purpose, dry-cured ham extracts at different processing times (0, 2, 3.5, 5, 6.5 and 9months) were fractionated by size-exclusion chromatography and analysed by nanoliquid chromatography coupled to tandem mass spectrometry. Differences obtained in the relative quantification of peptides by using a label-free methodology were useful to establish differences between processing times, being peptides generated by the degradation of myosin light chain 1 protein mainly responsible for the observed differences during the last stages of curing. In particular, APAPAPAPPKEEKI and PAPAPAPAPAPAPAPPKE, exclusively identified at 9months of curing, would be potential markers to control the time of curing and thus the final quality of dry-cured hams. Biological significance A peptidomics approach has been used to study the evolution of peptides throughout the ham dry-curing process, identifying peptides APAPAPAPPKEEKI and PAPAPAPAPAPAPAPPKE, which were only detected at 9months of process. So, they would constitute good potential markers to control the time of processing and thus the final quality of dry-cured hams.
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Affiliation(s)
- Marta Gallego
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna, Valencia, Spain.
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33
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Mora L, Escudero E, Arihara K, Toldrá F. Antihypertensive effect of peptides naturally generated during Iberian dry-cured ham processing. Food Res Int 2015; 78:71-78. [PMID: 28433319 DOI: 10.1016/j.foodres.2015.11.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/02/2015] [Accepted: 11/04/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos, CSIC, Avenida Agustín Escardino, 7, 46980 Paterna, Valencia, Spain
| | - Elizabeth Escudero
- Instituto de Agroquímica y Tecnología de Alimentos, CSIC, Avenida Agustín Escardino, 7, 46980 Paterna, Valencia, Spain
| | - Keizo Arihara
- Faculty of Animal Science, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada-shi 0348628, Japan
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos, CSIC, Avenida Agustín Escardino, 7, 46980 Paterna, Valencia, Spain.
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34
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Evidence of peptide oxidation from major myofibrillar proteins in dry-cured ham. Food Chem 2015; 187:230-5. [DOI: 10.1016/j.foodchem.2015.04.102] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Revised: 03/24/2015] [Accepted: 04/22/2015] [Indexed: 12/20/2022]
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35
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Mora L, Gallego M, Escudero E, Reig M, Aristoy MC, Toldrá F. Small peptides hydrolysis in dry-cured meats. Int J Food Microbiol 2015; 212:9-15. [PMID: 25944374 DOI: 10.1016/j.ijfoodmicro.2015.04.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 04/01/2015] [Accepted: 04/12/2015] [Indexed: 10/23/2022]
Abstract
Large amounts of different peptides are naturally generated in dry-cured meats as a consequence of the intense proteolysis mechanisms which take place during their processing. In fact, meat proteins are extensively hydrolysed by muscle endo-peptidases (mainly calpains and cathepsins) followed by exo-peptidases (mainly, tri- and di-peptidyl peptidases, dipeptidases, aminopeptidases and carboxypeptidases). The result is a large amount of released free amino acids and a pool of numerous peptides with different sequences and lengths, some of them with interesting sequences for bioactivity. This manuscript is presenting the proteomic identification of small peptides resulting from the hydrolysis of four target proteins (glyceraldehyde-3-phosphate dehydrogenase, beta-enolase, myozenin-1 and troponin T) and discusses the enzymatic routes for their generation during the dry-curing process. The results indicate that the hydrolysis of peptides follows similar exo-peptidase mechanisms. In the case of dry-fermented sausages, most of the observed hydrolysis is the result of the combined action of muscle and microbial exo-peptidases except for the hydrolysis of di- and tri-peptides, mostly due to microbial di- and tri-peptidases, and the release of amino acids at the C-terminal that appears to be mostly due to muscle carboxypeptidases.
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Affiliation(s)
- Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Paterna, Valencia, Spain
| | - Marta Gallego
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Paterna, Valencia, Spain
| | - Elizabeth Escudero
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Paterna, Valencia, Spain
| | - Milagro Reig
- Instituto de Ingeniería de Alimentos para el Desarrollo, Universidad Politécnica de Valencia, Spain
| | - M-Concepción Aristoy
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Paterna, Valencia, Spain
| | - Fidel Toldrá
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Paterna, Valencia, Spain.
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