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Masotti F, Stuknytė M, Da Costa I, De Noni I, Cattaneo S. Whey-based sports supplements: Heat damage and protein breakdown after in vitro gastrointestinal digestion. Food Res Int 2024; 191:114622. [PMID: 39059896 DOI: 10.1016/j.foodres.2024.114622] [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: 04/12/2024] [Revised: 06/06/2024] [Accepted: 06/06/2024] [Indexed: 07/28/2024]
Abstract
This study was aimed to evaluate the effect of heat damage on the release of total amino acids (AA), essential AA (EAA), branched-chain AA (BCAA) and bioactive peptides following in vitro static simulated gastrointestinal digestion (SGID) of four commercial whey-protein based sports supplements. The extent of protein glycation and denaturation was evaluated through the determination of the content of furosine and soluble whey proteins. The strongest protein breakdown (41.3 %) and the highest release of AA, EAA and BCAA (36.20, 27.78, and 11.30 g/100 g protein, respectively) was observed in the sports supplement characterised by the lowest (52.5 %) level of soluble whey proteins; whereas the protein glycation had a negligible impact on the studied parameters. The SGID also led to the release of several peptides with various reported bioactivities that may be beneficial to sports activity.
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Affiliation(s)
- Fabio Masotti
- Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente, Università degli Studi di Milano, via G. Celoria 2, Milan, Italy
| | - Milda Stuknytė
- Unitech COSPECT - COmprehensive Substances characterization via advanced sPECTtroscopy, Università degli Studi di Milano, via C. Golgi 19, Milan, Italy
| | - Irene Da Costa
- Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente, Università degli Studi di Milano, via G. Celoria 2, Milan, Italy
| | - Ivano De Noni
- Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente, Università degli Studi di Milano, via G. Celoria 2, Milan, Italy.
| | - Stefano Cattaneo
- Dipartimento di Scienze per gli Alimenti, la Nutrizione e l'Ambiente, Università degli Studi di Milano, via G. Celoria 2, Milan, Italy
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Barbosa JRM, Santos ASGG, Viana AT, Gonçalves AG, Nunes OC, Pereira MFR, Soares OSGP. Carbon-based materials for water disinfection and heavy metals removal. ENVIRONMENTAL TECHNOLOGY 2024; 45:1810-1828. [PMID: 36469607 DOI: 10.1080/09593330.2022.2154173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 11/24/2022] [Indexed: 06/17/2023]
Abstract
The presence of heavy metals and/or harmful bacteria in drinking water represents significant risks to human health. This study aimed to develop a low-cost water treatment technology using synthesized nanocomposites with metal nanoparticles supported on activated carbon (AC) for bacteria and heavy metal removal. In addition, the performance of the developed nanomaterials was compared with that of commercial materials - carbon fibers of three different typologies. The chemical and textural properties of all tested materials were characterized. To simulate a technology to be applied in a water outlet point, removal tests were carried out in a continuous system using suspensions of Escherichia coli and/or Staphylococcus aureus, wherein the contact time with the two phases was minimal (1 min). The obtained results revealed that iron and copper oxides supported on AC with a calcination treatment (CuFeO/AC-C) was the nanocomposite with the best performance, achieving a 6 log reduction for both bacteria in the same suspension up to 9 h operation. A mix of bacteria and heavy metals, simulating a real water, was treated with CuFeO/AC-C obtaining a 6 log reduction of bacteria, a Pb2+ removal >99.9% and Cd2+ removal between 97 and 98% over 180 passage times.
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Affiliation(s)
- José R M Barbosa
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - A Sofia G G Santos
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - A T Viana
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Universidade do Porto, Porto, Portugal
| | | | - Olga C Nunes
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory for Process Engineering, Environment, Biotechnology and Energy (LEPABE), Universidade do Porto, Porto, Portugal
| | - M Fernando R Pereira
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
| | - O Salomé G P Soares
- Departamento de Engenharia Química, Faculdade de Engenharia, Laboratory of Separation and Reaction Engineering - Laboratory of Catalysis and Materials (LSRE-LCM), Universidade do Porto, Porto, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Porto, Portugal
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Szerszunowicz I, Kozicki S. Plant-Derived Proteins and Peptides as Potential Immunomodulators. Molecules 2023; 29:209. [PMID: 38202792 PMCID: PMC10780438 DOI: 10.3390/molecules29010209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/26/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
The immune response of humans may be modulated by certain biopeptides. The present study aimed to determine the immunomodulatory potential of plant-derived food proteins and hydrolysates obtained from these proteins via monocatalytic in silico hydrolysis (using ficin, stem bromelainm or pepsin (pH > 2)). The scope of this study included determinations of the profiles of select bioactivities of proteins before and after hydrolysis and computations of the frequency of occurrence of selected bioactive fragments in proteins (parameter A), frequency/relative frequency of the release of biopeptides (parameters AE, W) and the theoretical degree of hydrolysis (DHt), by means of the resources and programs available in the BIOPEP-UWM database. The immunomodulating (ImmD)/immunostimulating (ImmS) peptides deposited in the database were characterized as well (ProtParam tool). Among the analyzed proteins of cereals and legumes, the best precursors of ImmD immunopeptides (YG, YGG, GLF, TPRK) turned out to be rice and garden pea proteins, whereas the best precursors of ImmS peptides appeared to be buckwheat (GVM, GFL, EAE) and broad bean (LLY, EAE) proteins. The highest number of YG sequences was released by stem bromelain upon the simulated hydrolysis of rice proteins (AE = 0.0010-0.0820, W = 0.1994-1.0000, DHt = 45-82%). However, antibacterial peptides (IAK) were released by ficin only from rice, oat, and garden pea proteins (DHt = 41-46%). Biopeptides (YG, IAK) identified in protein hydrolysates are potential immunomodulators, nutraceuticals, and components of functional food that may modulate the activity of the human immune system. Stem bromelain and ficin are also active components that are primed to release peptide immunomodulators from plant-derived food proteins.
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Affiliation(s)
- Iwona Szerszunowicz
- Department of Food Biochemistry, University of Warmia and Mazury in Olsztyn, Plac Cieszyński 1, 10-726 Olsztyn-Kortowo, Poland
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Magouz O, Mehanna N, Khalifa M, Sakr H, Gensberger-Reigl S, Dalabasmaz S, Pischetsrieder M. Profiles, antioxidative and ACE inhibitory activity of peptides released from fermented buttermilk before and after simulated gastrointestinal digestion. INNOV FOOD SCI EMERG 2023. [DOI: 10.1016/j.ifset.2022.103266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Iram D, Kindarle UA, Sansi MS, Meena S, Puniya AK, Vij S. Peptidomics-based identification of an antimicrobial peptide derived from goat milk fermented by Lactobacillus rhamnosus (C25). J Food Biochem 2022; 46:e14450. [PMID: 36226982 DOI: 10.1111/jfbc.14450] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/03/2022] [Accepted: 09/20/2022] [Indexed: 01/14/2023]
Abstract
Antimicrobial peptides (AMPs) are emerging as promising novel drug applicants. In the present study, goat milk was fermented using Lactobacillus rhamnosus C25 to generate bioactive peptides (BAPs). The peptide fractions generated were separated using ultrafiltration membranes with molecular weight cut-offs of 3, 5, and 10 kDa, and their antimicrobial activity toward Gram-positive and Gram-negative bacteria was investigated. Isolated AMPs were characterized using RP-HPLC and identified by LC-MS/MS. A total of 569 sequences of peptides were identified by mass spectrometry. Out of the 569, 36 were predicted as AMPs, 21 were predicted as cationic, and out of 21, 6 AMPs were helical peptides. In silico analysis indicated that the majority of peptides were antimicrobial and cationic in nature, an important factor for peptide interaction with the negative charge membrane of bacteria. The results showed that the peptides of <5 kDa exhibited maximum antibacterial activity against E. faecalis, E. coli, and S. typhi. Further, molecular docking was used to evaluate the potent MurD ligase inhibitors. On the basis of ligand binding energy, six predicted AMPs were selected and then analyzed by AutoDock tools. Among the six AMPs, peptides IGHFKLIFSLLRV (-7.5 kcal/mol) and KSFCPAPVAPPPPT (-7.6 kcal/mol), were predicted as a high-potent antimicrobial. Based on these findings, in silico investigations reveal that proteins of goat milk are a potential source of AMPs. This is for the first time that the antimicrobial peptides produced by Lactobacillus rhamnosus (C25) fermentation of goat milk have been identified via LC-MS/MS and predicted as AMPs, cationic charges, helical structure in nature, and potent MurD ligase inhibitors. These peptides can be synthesized and improved for use as antimicrobial agents. PRACTICAL APPLICATIONS: Goat milk is considered a high-quality source of milk protein. According to this study, goat milk protein is a potential source of AMPs, Fermentation can yield goat milk-derived peptides with a broad antibacterial activity spectrum at a low cost. The approach described here could be beneficial in that the significant AMPs can be synthesized and used in the pharmaceutical and food industries.
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Affiliation(s)
- Daraksha Iram
- Antimicrobial Peptides, Biofunctional Probiotics & Peptidomics Laboratory, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Uday Arun Kindarle
- Antimicrobial Peptides, Biofunctional Probiotics & Peptidomics Laboratory, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Manish Singh Sansi
- Biofunctional Peptidomics & Metabolic Syndrome Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Sunita Meena
- Biofunctional Peptidomics & Metabolic Syndrome Laboratory, Animal Biochemistry Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Anil Kumar Puniya
- Anaerobic Microbial Fermentation Laboratory, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
| | - Shilpa Vij
- Antimicrobial Peptides, Biofunctional Probiotics & Peptidomics Laboratory, Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, India
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Ashokbhai JK, Basaiawmoit B, Sakure A, Das S, Patil GB, Mankad M, Hati S. Purification and characterization of antioxidative and antimicrobial peptides from lactic-fermented sheep milk. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:4262-4272. [PMID: 36193483 PMCID: PMC9525493 DOI: 10.1007/s13197-022-05493-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 04/29/2022] [Accepted: 05/18/2022] [Indexed: 06/16/2023]
Abstract
This study aims to identify antioxidant and antimicrobial peptides from sheep milk produced using Lactobacillus plantarum (KGL3A). It was inferred that antioxidative and antimicrobial activities increased with increasing incubation time, and antioxidative properties (ABTS assay, superoxide free radical & hydroxyl free radical scavenging activity were 34.5, 34.7, and 29.2% respectively) and antimicrobial properties against Escherichia coli, S. typhimurium, E. faecalis, & B. cereus were 11.3, 12.7, 13.3, & 12.3 mm. However, inoculation of culture at a level of 2.5% and 48 h fermentation give the highest proteolysis activities. Fermented sheep milk fractions of 3 & 10 kDa were analysed for antioxidative and antimicrobial activity, and the 10 kDa permeate showed the highest ABTS assay. The hydroxyl free radical scavenging activity was greatest in 10 kDa retentate and superoxide free radical scavenging activity was observed in 3 kDa permeate (34.7, 43.4, and 34.6%, respectively). Antimicrobial activity of 10 kDa retentate against B. cereus & E. coli (13.3 mm) was greater than 3 and 10 kDa retentate against S. typhimurium (13 mm) and 3 kDa retentate against E. faecalis (13.7 mm). The molecular weight of the protein was estimated using SDS-PAGE. On electrophoresis on a 2-D gel, 6 peptides were identified using RP-LC/MS. BIOPEP, a database for antioxidative and antimicrobial peptides, validated the antioxidative & antimicrobial activities of several peptides in sheep's milk that has been fermented. Sheep milk fermented using Lactobacillus could be considered a novel source of antioxidative and antimicrobial proteins. Supplementary Information The online version contains supplementary material available at 10.1007/s13197-022-05493-2.
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Affiliation(s)
- Jodhani Keyur Ashokbhai
- Department of Dairy Microbiology, Anand Agricultural University, Anand, 388110 Gujarat India
| | - Bethsheba Basaiawmoit
- Department of Rural Development and Agricultural Production, North-Eastern Hill University, Tura campus, Tura, 794002 Meghalaya India
| | - Amar Sakure
- Department of Agriculture Biotechnology, Anand Agricultural University, Anand, 388110 Gujarat India
| | - Sujit Das
- Department of Rural Development and Agricultural Production, North-Eastern Hill University, Tura campus, Tura, 794002 Meghalaya India
| | - G. B. Patil
- Department of Tissue Culture, Anand Agricultural University, Anand, 388110 Gujarat India
| | - Maunil Mankad
- Department of Tissue Culture, Anand Agricultural University, Anand, 388110 Gujarat India
| | - Subrota Hati
- Department of Dairy Microbiology, Anand Agricultural University, Anand, 388110 Gujarat India
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Koh J, Kim BJ, Qu Y, Huang H, Dallas DC. Top-Down Glycopeptidomics Reveals Intact Glycomacropeptide Is Digested to a Wide Array of Peptides in Human Jejunum. J Nutr 2022; 152:429-438. [PMID: 34850069 DOI: 10.1093/jn/nxab400] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/30/2021] [Accepted: 11/19/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Bovine milk κ-casein-derived caseinomacropeptide (CMP) is produced in large quantities during cheese-making and has various biological activities demonstrated via in vitro and in vivo experiments. Previous studies examined protein degradation and peptide release after casein or whey protein consumption. However, whether purified intact CMP that is partially glycosylated survives intact to its presumed site of bioactivity within the gut remains unknown. OBJECTIVES The aim of this study was to determine the extent to which purified intact CMP (including glycosylated forms) is digested into peptide fragments within the jejunum of healthy human adults after consumption. METHODS Jejunal fluids were collected from 3 adult participants (2 men and 1 woman, age: 27 ± 7 y; BMI: 23 ± 1 kg/m2) for 3 h after consuming 37.5 g of purified intact CMP. CMP and CMP-derived peptides were isolated from the collected jejunal fluids by ethanol precipitation and solid-phase extraction and identified by MS-based top-down glycopeptidomics. Relative abundances of CMP and CMP-derived peptides were compared qualitatively between the feed and the jejunal fluids. RESULTS Intact CMP was dominant in feeding material, accounting for 90% of the total ion abundance of detected peptides, and in very low abundance (<2%) in the jejunal fluids. CMP-derived fragment peptides ranging from 11 to 20 amino acids in length were predominant (accounting for 68-88% of the total peptide ion abundance) in jejunal fluids during 1-3 h post consumption. CONCLUSIONS This study demonstrates that intact CMP (including glycosylated forms) is mostly digested in the human jejunum, releasing a wide array of CMP-derived peptide fragments. Some of the CMP-derived peptides with high homology to known bioactive peptides consistently survived across 3 h of digestion. Therefore, future research should examine the biological effects of the partially digested form-the CMP-derived fragments-rather than those of intact CMP.
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Affiliation(s)
- Jeewon Koh
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Bum Jin Kim
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA
| | - Yunyao Qu
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA.,Department of Food Science and Technology, Oregon State University, Corvallis, OR, USA
| | - Honggang Huang
- Research and Development, Arla Foods Ingredients Group P/S, Viby J, Denmark
| | - David C Dallas
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, USA.,Department of Food Science and Technology, Oregon State University, Corvallis, OR, USA
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Liu M, Zhang T, Liang X, Yuan Q, Zeng X, Wu Z, Pan D, Tao M, Guo Y. Production and transepithelial transportation of casein-derived peptides and identification a novel antioxidant peptide LHSMK. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.112194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Venardou B, O'Doherty JV, McDonnell MJ, Mukhopadhya A, Kiely C, Ryan MT, Sweeney T. Evaluation of the in vitro effects of the increasing inclusion levels of yeast β-glucan, a casein hydrolysate and its 5 kDa retentate on selected bacterial populations and strains commonly found in the gastrointestinal tract of pigs. Food Funct 2021; 12:2189-2200. [PMID: 33589892 DOI: 10.1039/d0fo02269a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Previously, the 5 kDa retentate (5kDaR) of a casein hydrolysate (CH) and yeast β-glucan (YBG) were identified as promising anti-inflammatory dietary supplements for supporting intestinal health in pigs post-weaning. However, their direct effects on intestinal bacterial populations are less well-known. The main objectives of this study were to determine if the increasing concentrations of the CH, 5kDaR and YBG individually, can: (1) alter the bacterial and short-chain fatty acid profiles in a weaned pig faecal batch fermentation assay, and (2) directly influence the growth of selected beneficial (Lactobacillus plantarum, L. reuteri, Bifidobacterium thermophilum) and pathogenic (Enterotoxigenic Escherichia coli, Salmonella Typhimurium) bacterial strains in individual pure culture growth assays. The potential of CH as a comparable 5kDaR substitute was also evaluated. The 5kDaR increased lactobacilli counts and butyrate concentration in the batch fermentation assay (P < 0.05) and increased L. plantarum (linear, P < 0.05), L. reuteri (quadratic, P < 0.05) and B. thermophilum (linear, P < 0.05) counts and reduced S. typhimurium (quadratic, P = 0.058) counts in the pure culture growth assays. CH increased butyrate concentration (P < 0.05) in the batch fermentation assay. YBG reduced Prevotella spp. counts (P < 0.05) and butyrate concentration (P < 0.05) in the batch fermentation assay. Both CH and YBG had no major effects in the pure culture growth assays. In conclusion, the 5kDaR had the most beneficial effects associated with increased counts of Lactobacillus and Bifidobacterium genera and butyrate production and reduced S. typhimurium counts in vitro indicating its potential to promote gastrointestinal health.
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Affiliation(s)
- Brigkita Venardou
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - John V O'Doherty
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Mary J McDonnell
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Anindya Mukhopadhya
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland. and Food for Health Ireland, University College Dublin, Belfield, Dublin 4, Ireland
| | - Claire Kiely
- School of Agriculture and Food Science, University College Dublin, Belfield, Dublin 4, Ireland
| | - Marion T Ryan
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Torres Sweeney
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland. and Food for Health Ireland, University College Dublin, Belfield, Dublin 4, Ireland
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Um J, Manguy J, Anes J, Jacquier JC, Hurley D, Dillon ET, Wynne K, Fanning S, O'Sullivan M, Shields DC. Enriching antimicrobial peptides from milk hydrolysates using pectin/alginate food-gels. Food Chem 2021; 352:129220. [PMID: 33684717 DOI: 10.1016/j.foodchem.2021.129220] [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: 09/18/2020] [Revised: 01/22/2021] [Accepted: 01/22/2021] [Indexed: 01/15/2023]
Abstract
Cationic antimicrobial peptides have raised interest as attractive alternatives to classical antibiotics, and also have utility in preventing food spoilage. We set out to enrich cationic antimicrobial peptides from milk hydrolysates using gels containing various ratios of anionic pectin/alginate. All processes were carried out with food-grade materials in order to suggest food-safe methods suited for producing food ingredients or supplements. Hydrolysed caseinate peptides retained in the gel fraction, identified by mass spectrometry, were enriched for potential antimicrobial peptides, as judged by a computational predictor of antimicrobial activity. Peptides retained in a 60:40 pectin:alginate gel fraction had a strong antimicrobial effect against 8 tested bacterial strains with a minimal inhibitory concentration of 1.5-5 mg/mL, while the unfractionated hydrolysate only had a detectable effect in one of the eight strains. Among 110 predicted antimicrobial peptides in the gel fraction, four are known antimicrobial peptides, HKEMPFPK, TTMPLW, YYQQKPVA and AVPYPQR. These results highlight the potential of pectin/alginate food-gels based processes as safe, fast, cost-effective methods to separate and enrich for antimicrobial peptides from complex food protein hydrolysates.
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Affiliation(s)
- Jounghyun Um
- Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin, Ireland; UCD Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
| | - Jean Manguy
- Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin, Ireland
| | - João Anes
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland
| | - Jean-Christophe Jacquier
- UCD Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
| | - Daniel Hurley
- UCD-Centre for Food Safety, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland
| | - Eugene T Dillon
- Mass Spectrometry Resource, Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin 4, Ireland
| | - Kieran Wynne
- Mass Spectrometry Resource, Conway Institute of Biomolecular and Biomedical Science, University College Dublin, Dublin 4, Ireland
| | - Séamus Fanning
- UCD-Centre for Food Safety, School of Public Health, Physiotherapy and Population Science, University College Dublin, Dublin, Ireland
| | - Michael O'Sullivan
- UCD Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland.
| | - Denis C Shields
- Conway Institute of Biomolecular and Biomedical Research, School of Medicine, University College Dublin, Dublin, Ireland.
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In vitro and in silico analysis of dual-function peptides derived from casein hydrolysate. FOOD SCIENCE AND HUMAN WELLNESS 2021. [DOI: 10.1016/j.fshw.2020.08.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Oh HY, Go HJ, Park NG. Identification and characterization of SaRpAMP, a 60S ribosomal protein L27-derived antimicrobial peptide from amur catfish, Silurus asotus. FISH & SHELLFISH IMMUNOLOGY 2020; 106:480-490. [PMID: 32711152 DOI: 10.1016/j.fsi.2020.06.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 06/17/2020] [Accepted: 06/17/2020] [Indexed: 06/11/2023]
Abstract
Aquatic freshwater fish like catfish, Silurus asotus, lives in microbe-rich environments, which enable this fish to develop necessary defense mechanisms. Antimicrobial peptides, along with other innate immune factors, are regarded as an important group in this defense. An antimicrobial peptide, which was isolated from the skin of S. asotus, was identified as a C-terminal fragment of 60S ribosomal protein L27 from S. asotus. The peptide was, then, designated Silurus asotus 60S ribosomal protein L27-derived antimicrobial peptide, SaRpAMP. Primary structure analyses and cDNA cloning revealed that SaRpAMP was 4185.36 Da and composed of 33 amino acids (AAs). Its precursor had a total of 136 AAs containing a pro-sequence of 103 AAs encoded by the nucleotide sequence of 512 bp that comprises a 5' untranslated region (UTR) of 32 bp, an open reading frame (ORF) of 411 bp, and a 3' UTR of 69 bp. Secondary structure analyses showed that SaRpAMP had two α-helices with turns and coils and an amphiphilic structure, a finding consistent with the 3D model of the peptide. SaRpAMP exhibited potent antibacterial activity comparable to piscidin 1, a powerful positive control. Its antimicrobial activity against fungus C. albicans was relatively weak. The antimicrobial activity of SaRpAMP was not diminished by heat treatment and changes in pH but was abolished by proteolytic enzyme digestion. Membrane permeability assays suggested that SaRpAMP interacts with both the outer and inner bacterial membranes. This was consistent with the results of lipid titration and quenching of Trp fluorescence that demonstrated SaRpAMP's interaction with acidic liposomes. Collectively, these findings suggest that the identified peptide, SaRpAMP, was the first antimicrobial peptide reported to be derived from the C-terminal region of 60S ribosomal protein L27. The findings also suggest that the action mechanism of SaRpAMP involved the interaction of the peptide with the bacterial membranes.
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Affiliation(s)
- Hye Young Oh
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, South Korea
| | - Hye-Jin Go
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, South Korea
| | - Nam Gyu Park
- Department of Biotechnology, College of Fisheries Sciences, Pukyong National University, 45 Yongso-ro, Nam-gu, Busan, 48513, South Korea.
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David S, Magram Klaiman M, Shpigelman A, Lesmes U. Addition of Anionic Polysaccharide Stabilizers Modulates In Vitro Digestive Proteolysis of a Chocolate Milk Drink in Adults and Children. Foods 2020; 9:foods9091253. [PMID: 32906813 PMCID: PMC7555934 DOI: 10.3390/foods9091253] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/19/2020] [Accepted: 08/31/2020] [Indexed: 12/16/2022] Open
Abstract
There is a need to better understand the possible anti-nutritional effect of food stabilizers on the digestibility of important macronutrients, like proteins. This study hypothesized that the anionic nature of κ-, ι-, λ-, Carrageenan (CGN) and xanthan gum directs their interactions with food proteins leading to their subsequent attenuated digestive proteolysis. Model chocolate milk drinks were tested for their colloidal properties, viscosity and proteolytic breakdown in adults and children using in vitro digestion models coupled with proteomic analyses. SDS-PAGE analyses of gastro-intestinal effluents highlight stabilizers hinder protein breakdown in adults and children. Zeta potential and colloidal particle size were the strongest determinants of stabilizers’ ability to hinder proteolysis. LC-MS proteomic analyses revealed stabilizer addition significantly reduced bioaccessibility of milk-derived bioactive peptides with differences in liberated peptide sequences arising mainly from their location on the outer rim of the protein structures. Further, liberation of bioactive peptides emptying from a child stomach into the intestine were most affected by the presence of ι-CGN. Overall, this study raises the notion that stabilizer charge and other properties of edible proteins are detrimental to the ability of humans to utilize the nutritional potential of such formulations. This could help food professionals and regulatory agencies carefully consider the use of anionic stabilizers in products aiming to serve as protein sources for children and other liable populations.
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14
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Bioprospecting for Bioactive Peptide Production by Lactic Acid Bacteria Isolated from Fermented Dairy Food. FERMENTATION-BASEL 2019. [DOI: 10.3390/fermentation5040096] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
With rapidly ageing populations, the world is experiencing unsustainable healthcare from chronic diseases such as metabolic, cardiovascular, neurodegenerative, and cancer disorders. Healthy diet and lifestyle might contribute to prevent these diseases and potentially enhance health outcomes in patients during and after therapy. Fermented dairy foods (FDFs) found their origin concurrently with human civilization for increasing milk shelf-life and enhancing sensorial attributes. Although the probiotic concept has been developed more recently, FDFs, such as milks and yoghurt, have been unconsciously associated with health-promoting effects since ancient times. These health benefits rely not only on the occurrence of fermentation-associated live microbes (mainly lactic acid bacteria; LAB), but also on the pro-health molecules (PHMs) mostly derived from microbial conversion of food compounds. Therefore, there is a renaissance of interest toward traditional fermented food as a reservoir of novel microbes producing PHMs, and “hyperfoods” can be tailored to deliver these healthy molecules to humans. In FDFs, the main PHMs are bioactive peptides (BPs) released from milk proteins by microbial proteolysis. BPs display a pattern of biofunctions such as anti-hypertensive, antioxidant, immuno-modulatory, and anti-microbial activities. Here, we summarized the BPs most frequently encountered in dairy food and their biological activities; we reviewed the main studies exploring the potential of dairy microbiota to release BPs; and delineated the main effectors of the proteolytic LAB systems responsible for BPs release.
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15
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Ali E, Nielsen SD, Abd-El Aal S, El-Leboudy A, Saleh E, LaPointe G. Use of Mass Spectrometry to Profile Peptides in Whey Protein Isolate Medium Fermented by Lactobacillus helveticus LH-2 and Lactobacillus acidophilus La-5. Front Nutr 2019; 6:152. [PMID: 31681785 PMCID: PMC6803757 DOI: 10.3389/fnut.2019.00152] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 09/06/2019] [Indexed: 11/13/2022] Open
Abstract
Peptides in the 3-kDa ultrafiltrate of fermented whey protein isolate (WPI) medium could be responsible for the antivirulence activity of Lactobacillus helveticus LH-2 and Lactobacillus acidophilus La-5 against Salmonella Typhimurium. Non-fermented and fermented media containing 5.6% WPI were fractionated at a 3 kDa cut-off and the filtrate was analyzed by mass spectrometry. The non-fermented WPI medium contained 109 milk derived peptides, which originated from β-casein (52), αs1-casein (22), αs2-casein (10), κ-casein (8), and β-lactoglobulin (17). Most of these peptides were not found in the fermented media, except for 14 peptides from β-casein and one peptide from αs2-casein. Database searches confirmed that 39 out of the 109 peptides had established physiological functions, including angiotensin-converting-enzyme (ACE) inhibitory, antioxidant, antimicrobial, or immunomodulating activity. A total of 75 peptides were found in the LH-2 cell free spent medium (CFSM): 54 from β-casein, 14 from k-casein, 4 from β-lactoglobulin and 3 from αs2-casein. From these peptides, 19 have previously been associated with several categories of bioactivity. For La-5 CFSM, a total of 15 peptides were sequenced: 8 from β-casein, 5 from αs1-casein, 2 from β-lactoglobulin. Only 5 of these have previously been reported as having bioactivity. Many of the peptides remaining in the fermented medium would contain low-affinity residues for oligopeptide binding proteins and higher resistance to peptidase hydrolysis. These properties of the sequenced peptides could explain their accumulation after fermentation despite the active proteolytic enzymes of LH-2 and La-5 strains. Down-regulated expression of hilA and ssrB genes in S. Typhimurium was observed in the presence of La-5 and LH-2 CFSM. Downregulation was not observed for the Salmonella oppA mutant strain exposed to the same CFSM used to treat the S. Typhimurium DT104 wild-type strain. This result suggests the importance of peptide transport by S. Typhimurium for down regulation of virulence genes in Salmonella.
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Affiliation(s)
- Eman Ali
- Food Hygiene Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
- Canadian Research Institute for Food Safety, University of Guelph, Guelph, ON, Canada
| | - Søren D. Nielsen
- Department of Food Science, Faculty of Science and Technology, Aarhus University, Aarhus, Denmark
| | - Salah Abd-El Aal
- Food Control Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Ahlam El-Leboudy
- Food Hygiene Department, Faculty of Veterinary Medicine, Alexandria University, Alexandria, Egypt
| | - Ebeed Saleh
- Food Hygiene Department, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Gisèle LaPointe
- Canadian Research Institute for Food Safety, University of Guelph, Guelph, ON, Canada
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Barac M, Vucic T, Zilic S, Pesic M, Sokovic M, Petrovic J, Kostic A, Sredovic Ignjatovic I, Milincic D. The Effect of In Vitro Digestion on Antioxidant, ACE-Inhibitory and Antimicrobial Potentials of Traditional Serbian White-Brined Cheeses. Foods 2019; 8:E94. [PMID: 30871005 PMCID: PMC6462927 DOI: 10.3390/foods8030094] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/01/2019] [Accepted: 03/07/2019] [Indexed: 12/14/2022] Open
Abstract
This study deals with the effect of in vitro digestion on the functional potential of traditional Serbian white-brined cheeses. The total antioxidant capacity, reducing power and iron (II) chelating properties as well as angiotensin-converting enyzme-inhibitory (ACE-inhibitory) and antimicrobial activities of traditional Serbian white-brined cheeses before and after in vitro digestion were assayed. The traditional cheeses had different antioxidant properties as well as different ACE-inhibitory activities. In vitro digestion improved the total antioxidant capacity (8.42⁻58.56 times) and the reducing power (by 17.90⁻99.30%) of investigated cheeses, whereas their chelating ability was slightly improved or unaffected after digestion. In vitro digestion reduced the ACE-inhibitory potential of water-soluble protein fractions, and digested water-insoluble fractions were the major source of ACE-inhibitory peptides. The digestates did not exhibit any antibacterial potential, whereas they showed moderate antifungal potential toward selected micromycetes. The best antifungal potential had Svrljig ovine cheese and Homolje cow cheese. The results of this study clearly point to a significant functionality of traditional white-brined cheeses.
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Affiliation(s)
- Miroljub Barac
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11081 Belgrade, Serbia.
| | - Tanja Vucic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11081 Belgrade, Serbia.
| | - Sladjana Zilic
- Maize Research Institute, Slobodana Bajica 1, 11081 Belgrade, Serbia.
| | - Mirjana Pesic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11081 Belgrade, Serbia.
| | - Marina Sokovic
- Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 11000 Belgrade, Serbia.
| | - Jovana Petrovic
- Institute for Biological Research "Sinisa Stankovic", University of Belgrade, 11000 Belgrade, Serbia.
| | - Aleksandar Kostic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11081 Belgrade, Serbia.
| | | | - Danijel Milincic
- Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11081 Belgrade, Serbia.
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Khan MU, Pirzadeh M, Förster CY, Shityakov S, Shariati MA. Role of Milk-Derived Antibacterial Peptides in Modern Food Biotechnology: Their Synthesis, Applications and Future Perspectives. Biomolecules 2018; 8:biom8040110. [PMID: 30301185 PMCID: PMC6316258 DOI: 10.3390/biom8040110] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/25/2018] [Accepted: 09/26/2018] [Indexed: 12/11/2022] Open
Abstract
Milk-derived antibacterial peptides (ABPs) are protein fragments with a positive influence on the functions and conditions of a living organism. Milk-derived ABPs have several useful properties important for human health, comprising a significant antibacterial effect against various pathogens, but contain toxic side-effects. These compounds are mainly produced from milk proteins via fermentation and protein hydrolysis. However, they can also be produced using recombinant DNA techniques or organic synthesis. This review describes the role of milk-derived ABPs in modern food biotechnology with an emphasis on their synthesis and applications. Additionally, we also discuss the mechanisms of action and the main bioproperties of ABPs. Finally, we explore future perspectives for improving ABP physicochemical properties and diminishing their toxic side-effects.
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Affiliation(s)
- Muhammad Usman Khan
- Bioproducts Sciences and Engineering Laboratory (BSEL), Washington State University, Richland, 99354 WA, USA.
- Department of Energy Systems Engineering, Faculty of Agricultural Engineering and Technology, University of Agriculture, 38000 Faisalabad, Pakistan.
| | - Maryam Pirzadeh
- Department of Food Science and Technology, Faculty of Agriculture, Sarvestan Branch, Islamic Azad University, 73451-173 Sarvestan, Iran.
| | - Carola Yvette Förster
- Department of Anesthesia and Critical Care, University of Würzburg, 97080 Würzburg, Germany.
| | - Sergey Shityakov
- Department of Anesthesia and Critical Care, University of Würzburg, 97080 Würzburg, Germany.
| | - Mohammad Ali Shariati
- Laboratory of Biocontrol and Antimicrobial Resistance, Orel state University Named After I.S. Turgenev, 302026 Orel, Russia.
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18
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Sutherland TD, Sriskantha A, Rapson TD, Kaehler BD, Huttley GA. Did aculeate silk evolve as an antifouling material? PLoS One 2018; 13:e0203948. [PMID: 30240428 PMCID: PMC6150510 DOI: 10.1371/journal.pone.0203948] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 08/30/2018] [Indexed: 01/23/2023] Open
Abstract
Many of the challenges we currently face as an advanced society have been solved in unique ways by biological systems. One such challenge is developing strategies to avoid microbial infection. Social aculeates (wasps, bees and ants) mitigate the risk of infection to their colonies using a wide range of adaptations and mechanisms. These adaptations and mechanisms are reliant on intricate social structures and are energetically costly for the colony. It seems likely that these species must have had alternative and simpler mechanisms in place to ensure the maintenance of hygienic domicile conditions prior to the evolution of these complex behaviours. Features of the aculeate coiled-coil silk proteins are reminiscent of those of naturally occurring α-helical antimicrobial peptides (AMPs). In this study, we demonstrate that peptides derived from the aculeate silk proteins have antimicrobial activity. We reconstruct the predicted ancestral silk sequences of an aculeate ancestor that pre-dates the evolution of sociality and demonstrate that these ancestral sequences also contained peptides with antimicrobial properties. It is possible that the silks evolved as an antifouling material and facilitated the evolution of sociality. These materials serve as model materials for consideration in future biomaterial development.
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Affiliation(s)
- Tara D. Sutherland
- CSIRO (The Commonwealth Scientific and Industrial Research Organisation), Health and Biosecurity, Canberra, Australian Capital Territory, Australia
| | - Alagacone Sriskantha
- CSIRO (The Commonwealth Scientific and Industrial Research Organisation), Health and Biosecurity, Canberra, Australian Capital Territory, Australia
| | - Trevor D. Rapson
- CSIRO (The Commonwealth Scientific and Industrial Research Organisation), Health and Biosecurity, Canberra, Australian Capital Territory, Australia
| | - Benjamin D. Kaehler
- Research School of Biology, Australian National University, Australian Capital Territory, Australia
| | - Gavin A. Huttley
- Research School of Biology, Australian National University, Australian Capital Territory, Australia
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19
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Carrillo W, Lucio A, Gaibor J, Morales D, Vásquez G. Isolation of Antibacterial Hydrolysates from Hen Egg White Lysozyme and Identification of Antibacterial Peptides. J Med Food 2018; 21:808-818. [DOI: 10.1089/jmf.2017.0134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Wilman Carrillo
- Research Department, Faculty of Health and Human Sciences, Bolivar State University, Guaranda, Ecuador
| | - Araceli Lucio
- Research Department, Faculty of Health and Human Sciences, Bolivar State University, Guaranda, Ecuador
| | - Juan Gaibor
- Research Department, Faculty of Health and Human Sciences, Bolivar State University, Guaranda, Ecuador
| | - Dayana Morales
- Laboratory of Functional Foods, Faculty of Foods Science and Engineering, Technical University of Ambato, Ambato, Ecuador
| | - Grace Vásquez
- Escuela Superior Politécnica del Litoral, ESPOL, Faculty of Mechanical Engineering and Production Sciences, Guayaquil, Ecuador
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20
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Carrillo W, Ramos M. Identification of Antimicrobial Peptides of Native and Heated Hydrolysates from Hen Egg White Lysozyme. J Med Food 2018; 21:915-926. [PMID: 29688795 DOI: 10.1089/jmf.2017.0132] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Hen eggs are a source of bioactive compounds, of which the hen egg white lysozyme (HEWL) protein. HEWL has a demonstrated antibacterial activity. The aim of this study was to evaluate the antimicrobial activity of native and heated HEWL hydrolysates obtained through hydrolysis with pepsin and to identify their peptides using the reversed phase high performance liquid chromatography-electrospray ionization-tandem mass spectrometry (RP-HPLC-ESI-MS-MS) analysis. Native and heat-treated HEWL was hydrolyzed with pepsin at pH 1.2, and their antibacterial activity was tested against Escherichia coli and Staphylococcus carnosus. Two of the hydrolysates obtained presented high antibacterial activity against Gram-positive and Gram-negative bacteria. Native HEWL hydrolysate was a bactericide at 2.0 mg/mL against E. coli. Fifty-one peptide sequences were identified on the two hydrolysates. Peptides identified are cationic peptides. These peptides are rich in Lys and Arg cationic amino acids and have Trp in their sequences.
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Affiliation(s)
- Wilman Carrillo
- 1 Laboratory of Functional Foods, Faculty of Foods Science and Engineering, Technical University of Ambato , Ambato, Ecuador .,2 Research Institute of Food Science CIAL (CSIC-UAM) , Madrid, Spain
| | - Mercedes Ramos
- 2 Research Institute of Food Science CIAL (CSIC-UAM) , Madrid, Spain
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21
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Moreno-Montoro M, Jauregi P, Navarro-Alarcón M, Olalla-Herrera M, Giménez-Martínez R, Amigo L, Miralles B. Bioaccessible peptides released by in vitro gastrointestinal digestion of fermented goat milks. Anal Bioanal Chem 2018. [PMID: 29523944 DOI: 10.1007/s00216-018-0983-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
In this study, ultrafiltered goat milks fermented with the classical starter bacteria Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus salivarus subsp. thermophilus or with the classical starter plus the Lactobacillus plantarum C4 probiotic strain were analyzed using ultra-high performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS) and/or high performance liquid chromatography-ion trap (HPLC-IT-MS/MS). Partial overlapping of the identified sequences with regard to fermentation culture was observed. Evaluation of the cleavage specificity suggested a lower proteolytic activity of the probiotic strain. Some of the potentially identified peptides had been previously reported as angiotensin-converting enzyme (ACE) inhibitory, antioxidant, and antibacterial and might account for the in vitro activity previously reported for these fermented milks. Simulated digestion of the products was conducted in the presence of a dialysis membrane to retrieve the bioaccessible peptide fraction. Some sequences with reported physiological activity resisted digestion but were found in the non-dialyzable fraction. However, new forms released by digestion, such as the antioxidant αs1-casein 144YFYPQL149, the antihypertensive αs2-casein 90YQKFPQY96, and the antibacterial αs2-casein 165LKKISQ170, were found in the dialyzable fraction of both fermented milks. Moreover, in the fermented milk including the probiotic strain, the k-casein dipeptidyl peptidase IV inhibitor (DPP-IV) 51INNQFLPYPY60 as well as additional ACE inhibitory or antioxidant sequences could be identified. With the aim of anticipating further biological outcomes, quantitative structure activity relationship (QSAR) analysis was applied to the bioaccessible fragments and led to potential ACE inhibitory sequences being proposed. Graphical abstract Ultrafiltered goat milks were fermented with the classical starter bacteria (St) and with St plus the L. plantarum C4 probiotic strain. Samples were analyzed using HPLC-IT-MS/MS and UPLC-Q-TOF-MS/MS. After simulated digestion and dialysis, some of the active sequences remained and new peptides with reported beneficial activities were released.
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Affiliation(s)
- Miriam Moreno-Montoro
- Department of Nutrition and Food Science, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071, Granada, Spain
| | - Paula Jauregi
- Department of Food and Nutritional Sciences, The University of Reading, Whiteknights, PO Box 226, Reading, RG6 6AP, UK
| | - Miguel Navarro-Alarcón
- Department of Nutrition and Food Science, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071, Granada, Spain
| | - Manuel Olalla-Herrera
- Department of Nutrition and Food Science, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071, Granada, Spain
| | - Rafael Giménez-Martínez
- Department of Nutrition and Food Science, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071, Granada, Spain
| | - Lourdes Amigo
- Department of Bioactivity and Food Analysis, Institute of Food Science Research (CIAL, CSIC-UAM), c/Nicolas Cabrera 9, 28049, Madrid, Spain
| | - Beatriz Miralles
- Department of Bioactivity and Food Analysis, Institute of Food Science Research (CIAL, CSIC-UAM), c/Nicolas Cabrera 9, 28049, Madrid, Spain.
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22
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23
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Basilicata MG, Pepe G, Sommella E, Ostacolo C, Manfra M, Sosto G, Pagano G, Novellino E, Campiglia P. Peptidome profiles and bioactivity elucidation of buffalo-milk dairy products after gastrointestinal digestion. Food Res Int 2017; 105:1003-1010. [PMID: 29433190 DOI: 10.1016/j.foodres.2017.12.038] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/12/2017] [Accepted: 12/13/2017] [Indexed: 11/17/2022]
Abstract
Buffalo milk is highly appreciated for its nutritive properties and highly employed in dairy products, despite this the release of bioactive peptides has not been investigated thoroughly. The aim of this work was to characterize in detail the bioaccesible peptides from buffalo-milk dairy products. Six products were subjected to in vitro simulated gastrointestinal digestion and then analyzed by LC-HRMS. The identified peptides were 165 in Yoghurt, 152 in Scamorza, 146 in Mozzarella, 136 in Grana and Ricotta, 120 in Ice Cream samples, belonging to both buffalo caseins (αs1-, β-, k-CN) and whey proteins (α-LA, β-LG). The identified peptide sequences were subjected to a database driven bioactivity search. Results highlighted a wide range of potential bioactive peptides, including antihypertensive, immunomodulatory, antimicrobial, antidiabetic, anticancer and antioxidant activity. These data evidence the content of healthy peptides released from buffalo-milk dairy products and suggest that the specific technological process influence their bioaccessibility.
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Affiliation(s)
- Manuela Giovanna Basilicata
- Department of Pharmacy, School of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy; PhD Program in Drug Discovery and Development, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy
| | - Giacomo Pepe
- Department of Pharmacy, School of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy; Pineta Grande Hospital, Via Domitiana, I-81130 Castelvolturno, CE, Italy
| | - Eduardo Sommella
- Department of Pharmacy, School of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy
| | - Carmine Ostacolo
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, I-80131 Napoli, Italy
| | - Michele Manfra
- Department of Science, University of Basilicata, Viale dell'Ateneo Lucano 10, I-85100 Potenza, Italy
| | - Gennaro Sosto
- Azienda Sanitaria Regionale del Molise, Via Ugo Petrella 1, I-86100 Campobasso, Italy
| | - Giuseppe Pagano
- San Salvatore Dairy Factory, Via Dioniso, I-84050 Giungano, SA, Italy
| | - Ettore Novellino
- Department of Pharmacy, University of Naples Federico II, Via D. Montesano 49, I-80131 Napoli, Italy
| | - Pietro Campiglia
- Department of Pharmacy, School of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano, SA, Italy; European Biomedical Research Institute of Salerno, Via De Renzi 50, I-84125 Salerno, Italy.
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24
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Pei J, Feng Z, Ren T, Sun H, Han H, Jin W, Dang J, Tao Y. Purification, characterization and application of a novel antimicrobial peptide from Andrias davidianus
blood. Lett Appl Microbiol 2017; 66:38-43. [DOI: 10.1111/lam.12823] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 10/09/2017] [Accepted: 10/11/2017] [Indexed: 11/26/2022]
Affiliation(s)
- J. Pei
- Shaanxi Key Laboratory of Biology and Bioresources; Shaanxi University of Technology; Shaanxi China
- Qinghai Key Laboratory of Tibetan Medicine Research; Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
| | - Z. Feng
- Shaanxi Key Laboratory of Biology and Bioresources; Shaanxi University of Technology; Shaanxi China
| | - T. Ren
- Shaanxi Key Laboratory of Biology and Bioresources; Shaanxi University of Technology; Shaanxi China
| | - H. Sun
- Shaanxi Key Laboratory of Biology and Bioresources; Shaanxi University of Technology; Shaanxi China
| | - H. Han
- Shaanxi Key Laboratory of Biology and Bioresources; Shaanxi University of Technology; Shaanxi China
| | - W. Jin
- Shaanxi Key Laboratory of Biology and Bioresources; Shaanxi University of Technology; Shaanxi China
| | - J. Dang
- Qinghai Key Laboratory of Tibetan Medicine Research; Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
| | - Y. Tao
- Qinghai Key Laboratory of Tibetan Medicine Research; Northwest Institute of Plateau Biology; Chinese Academy of Sciences; Xining China
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25
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Pei J, Jiang H, Li X, Jin W, Tao Y. Antimicrobial peptides sourced from post-butter processing waste yak milk protein hydrolysates. AMB Express 2017; 7:217. [PMID: 29210028 PMCID: PMC5716961 DOI: 10.1186/s13568-017-0497-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 10/26/2017] [Indexed: 01/08/2023] Open
Abstract
Yak butter is one of the most important foods for the Tibetan people. Of note, its production yields waste yak milk as a by-product. In this work, waste yak milk protein hydrolysates made via Pepsin hydrolysis were shown to have antimicrobial activity. Furthermore, an innovative method of magnetic liposome adsorption combined with reversed-phase high performance liquid chromatography (RP-HPLC) was developed to screen for and purify the antimicrobial peptides. Two antimicrobial peptides were obtained and their amino acid sequences were determined by N-sequencing, namely Arg-Val-Met-Phe-Lys-Trp-Ala and Lys-Val-Ile-Ser-Met-Ile. The antimicrobial activity spectra of Arg-Val-Met-Phe-Lys-Trp-Ala included Bacillus subtilis, Staphylcoccus aureus, Listeria innocua, Escherichia coli, Enterobacter cloacae and Salmonella paratyphi, while the Lys-Val-Ile-Ser-Met-Ile peptide shows not only bacterial growth inhibition but also of fungi. Haemolytic testing suggested that these two antimicrobial peptides could be considered to have no haemolytic effect at their minimum inhibitory concentrations (MICs).
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26
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Sah BNP, Vasiljevic T, McKechnie S, Donkor ON. Antioxidative and antibacterial peptides derived from bovine milk proteins. Crit Rev Food Sci Nutr 2017; 58:726-740. [DOI: 10.1080/10408398.2016.1217825] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- B. N. P. Sah
- Advanced Food Systems Research Unit, College of Health and Biomedicine
| | - T. Vasiljevic
- Advanced Food Systems Research Unit, College of Health and Biomedicine
| | - S. McKechnie
- Advanced Food Systems Research Unit, College of Engineering and Science, Victoria University, Werribee Campus, Melbourne, Victoria, Australia
| | - O. N. Donkor
- Advanced Food Systems Research Unit, College of Health and Biomedicine
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27
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Kim SH, Lee JY, Balolong MP, Kim JE, Paik HD, Kang DK. Identification and Characterization of a Novel Antioxidant Peptide from Bovine Skim Milk Fermented by Lactococcus lactis SL6. Korean J Food Sci Anim Resour 2017; 37:402-409. [PMID: 28747826 PMCID: PMC5516067 DOI: 10.5851/kosfa.2017.37.3.402] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/17/2017] [Accepted: 05/27/2017] [Indexed: 11/06/2022] Open
Abstract
A novel peptide having free radical scavenging activity was separated, using an on-line high-performance liquid chromatography (HPLC) - ABTS screening method, from bovine skim milk fermented by Lactococcus lactis SL6 (KCTC 11865BP). It was further purified using reverse phase-HPLC (RP-HPLC) and sequenced by RP-HPLC-tandem mass spectrometry. The amino acid sequence of the identified peptide was determined to be Phe-Ser-Asp-Ile-Pro-Asn-Pro-Ile-Gly-Ser-Glu-Asn-Ser-Glu-Lys-Thr-Thr-Met-Pro-Leu-Trp (2,362 Da), which is corresponding to the C-terminal fragment of bovine αs1-casein (f179-199). The hydroxyl radicals scavenging activity (IC50 28.25±0.96 μM) of the peptide chemically synthesized based on the MS/MS data showed a slightly lower than that of the natural antioxidant Trolox (IC50 15.37±0.52 μM). Furthermore, derivatives of the antioxidant peptide were synthesized. The antioxidative activity of the derivatives whose all three proline residues replaced by alanine significantly decreased, whereas replacement of two proline residues in N-terminal region did not affect its antioxidative activity, indicating that 3rd proline in C-terminal region is critical for the antioxidative activity of the peptide identified in this study. In addition, N-terminal region of the antioxidant peptide did not show its activity, whereas C-terminal region maintained antioxidative activity, suggesting that C-terminal region of the peptide is important for antioxidative activity.
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Affiliation(s)
- Sang Hoon Kim
- Department of Animal Resource Science, Dankook University, Cheonan 31116, Korea
| | - Ji Yoon Lee
- National Instrumentation Center for Environmental Management, Seoul National University, Seoul 08826, Korea
| | - Marilen P Balolong
- Department of Animal Resource Science, Dankook University, Cheonan 31116, Korea.,Department of Biology, College of Arts and Sciences, University of Philippines, Manila 1000, Philippines
| | - Jin-Eung Kim
- R&D Center, Cell Biotech Co., Ltd., Gimpo 10003, Korea
| | - Hyun-Dong Paik
- Department of Food Science and Biotechnology of Animal Resources, Konkuk University, Seoul 05029, Korea
| | - Dae-Kyung Kang
- Department of Animal Resource Science, Dankook University, Cheonan 31116, Korea
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Wada Y, Phinney BS, Weber D, Lönnerdal B. In vivo digestomics of milk proteins in human milk and infant formula using a suckling rat pup model. Peptides 2017; 88:18-31. [PMID: 27979737 DOI: 10.1016/j.peptides.2016.11.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/09/2016] [Accepted: 11/23/2016] [Indexed: 12/19/2022]
Abstract
Human milk is the optimal mode of infant feeding for the first several months of life, and infant formulas serve as an alternative when breast-feeding is not possible. Milk proteins have a balanced amino acid composition and some of them provide beneficial bioactivities in their intact forms. They also encrypt a variety of bioactive peptides, possibly contributing to infant health and growth. However, there is limited knowledge of how milk proteins are digested in the gastrointestinal tract and bioactive peptides are released in infants. A peptidomic analysis was conducted to identify peptides released from milk proteins in human milk and infant formula, using a suckling rat pup model. Among the major milk proteins targeted, α-lactalbumin and β-casein in human milk, and β-lactoglobulin and β-casein in infant formula were the main sources of peptides, and these peptides covered large parts of the parental proteins' sequences. Release of peptides was concentrated to specific regions, such as residues 70-92 of β-casein in human milk, residues 39-55 of β-lactoglobulin in infant formula, and residues 57-96 and 145-161 of β-CN in infant formula, where resistance to gastrointestinal digestion was suggested. In the context of bioactive peptides, release of fragments containing known bioactive peptides was confirmed, such as β-CN-derived opioid and antihypertensive peptides. It is therefore likely that these fragments are of biological significance in neonatal health and development.
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Affiliation(s)
- Yasuaki Wada
- Department of Nutrition, University of California, Davis, One Shields Ave., Davis, CA 95616, USA; Nutritional Science Institute, Morinaga Milk Industry Co., Ltd., 5-1-83, Higashihara, Zama, Kanagawa-Pref. 252-8583, Japan
| | - Brett S Phinney
- Genome Center Proteomics Core Facility, University of California, Davis, 451 E. Health Sciences Dr., Davis, CA 95616, USA
| | - Darren Weber
- Genome Center Proteomics Core Facility, University of California, Davis, 451 E. Health Sciences Dr., Davis, CA 95616, USA
| | - Bo Lönnerdal
- Department of Nutrition, University of California, Davis, One Shields Ave., Davis, CA 95616, USA.
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Peptidomic analysis of bioactive peptides in zebra blenny (Salaria basilisca) muscle protein hydrolysate exhibiting antimicrobial activity obtained by fermentation with Bacillus mojavensis A21. Process Biochem 2016. [DOI: 10.1016/j.procbio.2016.08.021] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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30
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Rafiq S, Huma N, Pasha I, Shahid M, Xiao H. Angiotensin-converting enzyme-inhibitory and antithrombotic activities of soluble peptide extracts from buffalo and cow milk Cheddar cheeses. INT J DAIRY TECHNOL 2016. [DOI: 10.1111/1471-0307.12373] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saima Rafiq
- National Institute of Food Science and Technology; University of Agriculture; Faisalabad 38040 Pakistan
| | - Nuzhat Huma
- National Institute of Food Science and Technology; University of Agriculture; Faisalabad 38040 Pakistan
| | - Imran Pasha
- National Institute of Food Science and Technology; University of Agriculture; Faisalabad 38040 Pakistan
| | - Muhammad Shahid
- Department of Biochemistry; University of Agriculture; Faisalabad 38040 Pakistan
| | - Hang Xiao
- Department of Food Science; College of Natural Sciences; University of Massachusetts Amherst; Amherst MA 01003 USA
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31
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Detailed peptide profiling of “Scotta”: from a dairy waste to a source of potential health-promoting compounds. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/s13594-016-0297-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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32
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Isolation and identification of some antibacterial peptides in the plasmin-digest of β-casein. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.12.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Jin Y, Yu Y, Qi Y, Wang F, Yan J, Zou H. Peptide profiling and the bioactivity character of yogurt in the simulated gastrointestinal digestion. J Proteomics 2016; 141:24-46. [PMID: 27108547 DOI: 10.1016/j.jprot.2016.04.010] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 03/24/2016] [Accepted: 04/09/2016] [Indexed: 02/07/2023]
Abstract
UNLABELLED This study investigated the relationship between peptide profiles and the bioactivity character of yogurt in simulated gastrointestinal trials. A total of 250, 434 and 466 peptides were identified by LC-MS/MS analyses of yogurt, gastric digest and pancreatic digest. Forty peptides of yogurt survived in gastrointestinal digestion. κ-CN and β-CN contributed the diversity of peptides during the fermentation process and gastrointestinal digestion, respectively. The favorite of κ-CN by lactic acid bacteria complemented gut digestion by hydrolyzing κ-CN, the low abundance milk proteins. The potential bioactivities were evaluated by in vitro ACE and DPP-IV inhibition assays. The ACE inhibition rate of the pancreatic digests was ~4 - and ~2 - fold greater than that of yogurt and the gastric digests. The ACE inhibitory peptides generated during gastrointestinal digestion improved the ACE inhibitory activity of the gastric and pancreatic digests. The DPP-IV inhibition rate of the pancreatic digest was ~6 - and ~3 - fold greater than that of yogurt and the gastric digest. The numbers of potential DPP-IV inhibitory peptides were positively correlated to the DPP-IV inhibitory activity of the gastric and pancreatic digests. BIOLOGICAL SIGNIFICANCE The present study describes the characters and bioactivities of peptides from yogurt in a simulated gastrointestinal digestion. The number of peptides identified from yogurt and gastrointestinal digests by LC-MS/MS increased in the simulated gastrointestinal trials. The in vitro ACE and DPP-IV inhibition bioactivities revealed that the bioactivity of yogurt was enhanced during gastrointestinal digestion. The correlation between peptides and bioactivity in vitro indicated that not only the peptides amount but also the proportion of peptides with high bioactivities contributed to increased bioactivity during gastrointestinal digestion. The study of peptides identified from yogurt and digests revealed that the number of released peptides was not determined by the abundance of the parent proteins but by whether the enzymes favored the protein. In summary, peptide profiling and bioactivities of yogurt in simulated gastrointestinal digestion helped to elucidate the health benefits of yogurt peptides. The results further revealed that pre-digestion of milk by lactic acid bacteria are complementary to generate bioactive peptides and to provide particular yogurt functions.
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Affiliation(s)
- Yan Jin
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
| | - Yang Yu
- Dalian Ocean University, Dalian, China; Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Yanxia Qi
- Dalian Ocean University, Dalian, China
| | - Fangjun Wang
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Jiaze Yan
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China
| | - Hanfa Zou
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.
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Carrillo W, Gómez-Ruiz JA, Miralles B, Ramos M, Barrio D, Recio I. Identification of antioxidant peptides of hen egg-white lysozyme and evaluation of inhibition of lipid peroxidation and cytotoxicity in the Zebrafish model. Eur Food Res Technol 2016. [DOI: 10.1007/s00217-016-2677-1] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Wada Y, Lönnerdal B. Bioactive peptides released by in vitro digestion of standard and hydrolyzed infant formulas. Peptides 2015; 73:101-5. [PMID: 26385395 DOI: 10.1016/j.peptides.2015.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Revised: 09/05/2015] [Accepted: 09/12/2015] [Indexed: 01/21/2023]
Abstract
Hydrolyzed infant formulas serve as appropriate nutritional sources for infants afflicted with cow's milk allergy, and milk proteins in hydrolyzed formulas are industrially hydrolyzed extensively or partially. To investigate whether industrial hydrolysis may modulate the digestive trajectory of milk proteins, thereby releasing different profiles of bioactive peptides compared with standard formulas, both standard and hydrolyzed formulas were subjected to in vitro digestion and formation of bioactive peptides were compared. One standard, one extensively hydrolyzed, and one partially hydrolyzed infant formula were digested in vitro with pepsin and pancreatin, taking into account the higher gastric pH of infants, and the digesta were subjected to peptidomic analysis. The standard formula released a larger variety of bioactive peptides than from the hydrolyzed formulas, indicating that industrial hydrolysis of milk proteins may generally attenuate their indigenous bioactivities such as antibacterial, immuno-regulatory, and anti-oxidative activities. Conversely, industrial hydrolysis may facilitate the formation of bioactive peptides from hydrophobic proteins/regions such as β-LG and the "strategic zone" of β-CN, which encrypt bioactive peptides including a dipeptidyl dipeptidase-4-inhibitory, hypocholesterolemic, and opioid peptides. Infants fed hydrolyzed infant formulas may be influenced by milk protein-derived bioactive peptides in a manner different from those fed standard formula.
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Affiliation(s)
- Yasuaki Wada
- Department of Nutrition, University of California, Davis, One Shields Ave., Davis, CA 95616, USA; Nutritional Science Institute, Morinaga Milk Industry Co., Ltd., 5-1-83, Higashihara, Zama, Kanagawa Pref. 252-8583, Japan
| | - Bo Lönnerdal
- Department of Nutrition, University of California, Davis, One Shields Ave., Davis, CA 95616, USA.
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Mohanty D, Jena R, Choudhury PK, Pattnaik R, Mohapatra S, Saini MR. Milk Derived Antimicrobial Bioactive Peptides: A Review. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2015. [DOI: 10.1080/10942912.2015.1048356] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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37
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Hernández-Ledesma B, García-Nebot MJ, Fernández-Tomé S, Amigo L, Recio I. Dairy protein hydrolysates: Peptides for health benefits. Int Dairy J 2014. [DOI: 10.1016/j.idairyj.2013.11.004] [Citation(s) in RCA: 139] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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38
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39
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Dziuba B, Dziuba M. New milk protein-derived peptides with potential antimicrobial activity: an approach based on bioinformatic studies. Int J Mol Sci 2014; 15:14531-45. [PMID: 25141106 PMCID: PMC4159866 DOI: 10.3390/ijms150814531] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Revised: 07/14/2014] [Accepted: 07/16/2014] [Indexed: 11/26/2022] Open
Abstract
New peptides with potential antimicrobial activity, encrypted in milk protein sequences, were searched for with the use of bioinformatic tools. The major milk proteins were hydrolyzed in silico by 28 enzymes. The obtained peptides were characterized by the following parameters: molecular weight, isoelectric point, composition and number of amino acid residues, net charge at pH 7.0, aliphatic index, instability index, Boman index, and GRAVY index, and compared with those calculated for known 416 antimicrobial peptides including 59 antimicrobial peptides (AMPs) from milk proteins listed in the BIOPEP database. A simple analysis of physico-chemical properties and the values of biological activity indicators were insufficient to select potentially antimicrobial peptides released in silico from milk proteins by proteolytic enzymes. The final selection was made based on the results of multidimensional statistical analysis such as support vector machines (SVM), random forest (RF), artificial neural networks (ANN) and discriminant analysis (DA) available in the Collection of Anti-Microbial Peptides (CAMP database). Eleven new peptides with potential antimicrobial activity were selected from all peptides released during in silico proteolysis of milk proteins.
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Affiliation(s)
- Bartłomiej Dziuba
- University of Warmia and Mazury in Olsztyn, Chair of Industrial and Food Microbiology, Cieszynski Square 1, Olsztyn 10-957, Poland.
| | - Marta Dziuba
- University of Warmia and Mazury in Olsztyn, Chair of Food Biochemistry, Cieszynski Square 1, Olsztyn 10-957, Poland.
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40
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Dairy-derived antimicrobial peptides: Action mechanisms, pharmaceutical uses and production proposals. Trends Food Sci Technol 2014. [DOI: 10.1016/j.tifs.2014.01.002] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Abstract
This study investigated the antibacterial properties of plasmin, the plasmin hydrolysis of bovine κ-casein and the fractions (named κC1, κC2, κC3, κC4, and κC5) liberated from it using RP-HPLC. The target bacteria wereEscherichia coli, Staphylococcus aureus(pathogenic),Lactobacillus caseiandLactobacillus acidophilus(probiotic). Three peptides (kC1, kC3, and kC4) were found to have antibacterial activity, with κC3 peptide being the most active. The plasmin digest of bovine κ-casein proved to be stronger than any of its fractions in terms of antibacterial potential. Measurement of the minimum inhibitory concentration (MIC) showed that Gram-positive bacteria are generally more sensitive to antibacterial activity than Gram-negative bacteria. The MIC of nisin, as a bacteriocin peptide, was also measured. The three antibacterial peptides were identified using LC-Mass. The molecular mass of kC1, kC3, and kC4 corresponded to the f(17–21), f(22–24), and f(1–3) of bovine κ-casein, respectively. It was also found that the positive charge and hydrophobicity of a peptide are not key factors in antibacterial activity. On the whole, the present study demonstrated that the plasmin digest of κ-casein has a high antibacterial potential and can be considered as a natural antibacterial agent in the food chain.
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42
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Sedaghati M, Ezzatpanah H, Mashhadiakbar Boojar M, Tajabadi Ebrahimi M, Aminafshar M. Plasmin-digest of β-lactoglobulin with antibacterial properties. FOOD AGR IMMUNOL 2014. [DOI: 10.1080/09540105.2014.893998] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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43
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Sánchez-Rivera L, Diezhandino I, Gómez-Ruiz JÁ, Fresno JM, Miralles B, Recio I. Peptidomic study of Spanish blue cheese (Valdeón) and changes after simulated gastrointestinal digestion. Electrophoresis 2014; 35:1627-36. [DOI: 10.1002/elps.201300510] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Laura Sánchez-Rivera
- Instituto de Investigación en Ciencias de la Alimentación; CIAL (CSIC-UAM, CEI UAM+CSIC); Madrid Spain
| | - Isabel Diezhandino
- Departamento de Higiene y Tecnología de los Alimentos; Facultad de Veterinaria; Universidad de León; León Spain
| | - José Ángel Gómez-Ruiz
- Instituto de Investigación en Ciencias de la Alimentación; CIAL (CSIC-UAM, CEI UAM+CSIC); Madrid Spain
| | - José María Fresno
- Departamento de Higiene y Tecnología de los Alimentos; Facultad de Veterinaria; Universidad de León; León Spain
| | - Beatriz Miralles
- Instituto de Investigación en Ciencias de la Alimentación; CIAL (CSIC-UAM, CEI UAM+CSIC); Madrid Spain
| | - Isidra Recio
- Instituto de Investigación en Ciencias de la Alimentación; CIAL (CSIC-UAM, CEI UAM+CSIC); Madrid Spain
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Català-Clariana S, Benavente F, Giménez E, Barbosa J, Sanz-Nebot V. Identification of bioactive peptides in hypoallergenic infant milk formulas by CE-TOF-MS assisted by semiempirical model of electromigration behavior. Electrophoresis 2014; 34:1886-94. [PMID: 23564639 DOI: 10.1002/elps.201200547] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 03/06/2013] [Accepted: 03/07/2013] [Indexed: 02/05/2023]
Abstract
Biologically active peptides derived from complex bovine milk protein hydrolysates are of particular interest in food science and nutrition because they have been shown to play different physiological roles, providing benefits in human health. In this study, we used CE-TOF-MS for separation and identification of bioactive peptides in three hypoallergenic infant milk formulas. An appropriate sample cleanup using a citrate buffer with DTT and urea followed by SPE with Sep-Pack® C18 and StrataX™ cartridges allowed the detection of a large number of low molecular mass bioactive peptides. This preliminary identification was solely based on the measured experimental monoisotopic molecular mass values (M(exp)). Later, we evaluated the classical semiempirical relationships between electrophoretic mobility and charge-to-mass ratio (m(e) vs. q/M(α), α = 1/2 for the classical polymer model) to describe their migration behavior. The assistance of migration prediction proved to be useful to improve reliability of the identification, avoiding misinterpretations and solving some identity conflicts. After revision, the identity of 24, 30, and 38 bioactive peptides was confirmed in each of the three infant milk formulas. A significant number of these peptides were reported as inhibitors of angiotensin-converting enzyme, however, the presence of sequences with other biological activities such as antihypertensive, antithrombotic, hypocholesterolemic, immunomodulation, cytotoxicity, antioxidant, antimicrobial, antigenic, or opioid was also confirmed.
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Affiliation(s)
- Sergio Català-Clariana
- Department of Analytical Chemistry, Nutrition and Food Safety Research Institute-INSA-UB, University of Barcelona, Barcelona, Spain
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45
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Penetration of milk-derived antimicrobial peptides into phospholipid monolayers as model biomembranes. Biochem Res Int 2013; 2013:914540. [PMID: 24455264 PMCID: PMC3877611 DOI: 10.1155/2013/914540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 08/27/2013] [Accepted: 08/27/2013] [Indexed: 12/18/2022] Open
Abstract
Three antimicrobial peptides derived from bovine milk proteins were examined with regard to penetration into insoluble monolayers formed with 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) or 1,2-dipalmitoyl-sn-glycero-3-phospho-rac-(1-glycerol) sodium salt (DPPG). Effects on surface pressure (Π) and electric surface potential (ΔV) were measured, Π with a platinum Wilhelmy plate and ΔV with a vibrating plate. The penetration measurements were performed under stationary diffusion conditions and upon the compression of the monolayers. The two type measurements showed greatly different effects of the peptide-lipid interactions. Results of the stationary penetration show that the peptide interactions with DPPC monolayer are weak, repulsive, and nonspecific while the interactions with DPPG monolayer are significant, attractive, and specific. These results are in accord with the fact that antimicrobial peptides disrupt bacteria membranes (negative) while no significant effect on the host membranes (neutral) is observed. No such discrimination was revealed from the compression isotherms. The latter indicate that squeezing the penetrant out of the monolayer upon compression does not allow for establishing the penetration equilibrium, so the monolayer remains supersaturated with the penetrant and shows an under-equilibrium orientation within the entire compression range, practically.
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46
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Jiang Z, Wang L, Wu W, Wang Y. Biological activities and physicochemical properties of Maillard reaction products in sugar–bovine casein peptide model systems. Food Chem 2013; 141:3837-45. [DOI: 10.1016/j.foodchem.2013.06.041] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2012] [Revised: 05/03/2013] [Accepted: 06/11/2013] [Indexed: 10/26/2022]
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47
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Cheng X, Tang X, Wang Q, Mao X. Antibacterial effect and hydrophobicity of yak κ-casein hydrolysate and its fractions. Int Dairy J 2013. [DOI: 10.1016/j.idairyj.2012.12.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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48
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Cavazos A, Gonzalez de Mejia E. Identification of Bioactive Peptides from Cereal Storage Proteins and Their Potential Role in Prevention of Chronic Diseases. Compr Rev Food Sci Food Saf 2013; 12:364-380. [DOI: 10.1111/1541-4337.12017] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2013] [Accepted: 03/27/2013] [Indexed: 01/11/2023]
Affiliation(s)
- Ariel Cavazos
- Dept. of Food Science and Human Nutrition; Univ. of Illinois at Urbana Champaign; 228 ERML; 1201 W. Gregory Drive; Urbana; IL 61801; U.S.A
| | - Elvira Gonzalez de Mejia
- Dept. of Food Science and Human Nutrition; Univ. of Illinois at Urbana Champaign; 228 ERML; 1201 W. Gregory Drive; Urbana; IL 61801; U.S.A
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Rodríguez Saint-Jean S, De las Heras A, Carrillo W, Recio I, Ortiz-Delgado JB, Ramos M, Gomez-Ruiz JA, Sarasquete C, Pérez-Prieto SI. Antiviral activity of casein and αs2 casein hydrolysates against the infectious haematopoietic necrosis virus, a rhabdovirus from salmonid fish. JOURNAL OF FISH DISEASES 2013; 36:467-481. [PMID: 23167612 DOI: 10.1111/j.1365-2761.2012.01448.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2011] [Revised: 10/31/2011] [Accepted: 11/07/2011] [Indexed: 06/01/2023]
Abstract
Salmonid fish viruses, such as infectious haematopoietic necrosis virus (IHNV), are responsible for serious losses in the rainbow trout and salmon-farming industries, and they have been the subject of intense research in the field of aquaculture. Thus, the aim of this work is to study the antiviral effect of milk-derived proteins as bovine caseins or casein-derived peptides at different stages during the course of IHNV infection. The results indicate that the 3-h fraction of casein and α(S2) -casein hydrolysates reduced the yield of infectious IHNV in a dose-dependent manner and impaired the production of IHNV-specific antigens. Hydrolysates of total casein and α(S2) -casein target the initial and later stages of viral infection, as demonstrated by the reduction in the infective titre observed throughout multiple stages and cycles. In vivo, more than 50% protection was observed in the casein-treated fish, and the kidney sections exhibited none of the histopathological characteristics of IHNV infection. The active fractions from casein were identified, as well as one of the individual IHNV-inhibiting peptides. Further studies will be required to determine which other peptides possess this activity. These findings provide a basis for future investigations on the efficacy of these compounds in treating other viral diseases in farmed fish and to elucidate the underlying molecular mechanisms of action. However, the present results provide convincing evidence in support of a role for several milk casein fractions as suitable candidates to prevent and treat some fish viral infections.
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Affiliation(s)
- S Rodríguez Saint-Jean
- Departamento de Microbiologia Molecular y Biología de la Infección, Centro de Investigaciones Biológicas, CSIC, Madrid, Spain
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50
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Théolier J, Hammami R, Labelle P, Fliss I, Jean J. Isolation and identification of antimicrobial peptides derived by peptic cleavage of whey protein isolate. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.01.014] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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