201
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Panyayai T, Ngamphiw C, Tongsima S, Mhuantong W, Limsripraphan W, Choowongkomon K, Sawatdichaikul O. FeptideDB: A web application for new bioactive peptides from food protein. Heliyon 2019; 5:e02076. [PMID: 31372542 PMCID: PMC6656964 DOI: 10.1016/j.heliyon.2019.e02076] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 06/11/2019] [Accepted: 07/08/2019] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Bioactive peptides derived from food are important sources for alternative medicine and possess therapeutic activity. Several biochemical methods have been achieved to isolate bioactive peptides from food, which are tedious and time consuming. In silico methods are an alternative process to reduce cost and time with respect to bioactive peptide production. In this paper, FeptideDB was used to collect bioactive peptide (BP) data from both published research articles and available bioactive peptide databases. FeptideDB was developed to assist in forecasting bioactive peptides from food by combining peptide cleavage tools and database matching. Furthermore, this application was able to predict the potential of cleaved peptides from 'enzyme digestion module' to identify new ACE (angiotensin converting enzyme) inhibitors using an automatic molecular docking approach. RESULTS The FeptideDB web application contains tools for generating all possible peptides cleaved from input protein by various available enzymes. This database was also used for analysis and visualization to assist in bioactive peptide discovery. One module of FeptideDB has the ability to create 3-dimensional peptide structures to further predict inhibitors for the target protein, ACE (angiotensin converting enzyme). CONCLUSIONS FeptideDB is freely available to researchers who are interested in exploring bioactive peptides. The FeptideDB interface is easy to use, allowing users to rapidly retrieve data based on desired search criteria. FeptideDB is freely available at http://www4g.biotec.or.th/FeptideDB/. Ultimately, FeptideDB is a computational aid for assessing peptide bioactivities.
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Affiliation(s)
- Thitima Panyayai
- Genetic Engineering Interdisciplinary Program, Graduate School, Kasetsart University, 50 Ngam Wong Wan Rd, Bangkok, Chatuchak, 10900, Thailand
- Department of Research and Development, Betagro Science Center Co. Ltd., Klong Luang, Pathumthani, 12120, Thailand
| | - Chumpol Ngamphiw
- National Biobank of Thailand, National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Sissades Tongsima
- National Biobank of Thailand, National Center for Genetic Engineering and Biotechnology (BIOTEC), Thailand Science Park, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Wuttichai Mhuantong
- Enzyme Technology Laboratory, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road Khlong Nueng, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Wachira Limsripraphan
- Department of Computer Engineering, Faculty of Industrial Technology, Pibulsongkram Rajabhat University, 156 Mu 5 Plaichumpol Sub-district, Muang District, Phitsanulok, 65000, Thailand
| | - Kiattawee Choowongkomon
- Department of Biochemistry, Faculty of Science, Kasetsart University, 50 Ngam, Wong Wan Rd, Bangkok, Chatuchak, 10900, Thailand
- Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok, 10900, Thailand
| | - Orathai Sawatdichaikul
- Department of Nutrition and Health, Institute of Food Research and Product Development, Kasetsart University, 50 Ngam Wong Wan Rd, Ladyaow, Chatuchak, Bangkok, 10900, Thailand
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202
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Analogues of Human Granulysin as Antimycobacterial Agents. Int J Pept Res Ther 2019. [DOI: 10.1007/s10989-018-9715-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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203
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Antihypertensive Effects of Corn Silk Extract and Its Novel Bioactive Constituent in Spontaneously Hypertensive Rats: The Involvement of Angiotensin-Converting Enzyme Inhibition. Molecules 2019; 24:molecules24101886. [PMID: 31100914 PMCID: PMC6572293 DOI: 10.3390/molecules24101886] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 05/08/2019] [Accepted: 05/14/2019] [Indexed: 12/31/2022] Open
Abstract
Corn silk tea has been used in folk medicine for anti-hypertensive healthcare. Angiotensin-converting enzyme (ACE) plays a crucial role on the homeostasis of blood pressure. However, effects of corn silk tea on ACE activity and the presence of ACE inhibitory constituents in corn silk are still unknown. Here we applied proteomics and bioinformatics approaches to identify corn silk bioactive peptides (CSBps) that target ACE from the boiling water extract of corn silk (CSE). CSE significantly reduced systolic blood pressure (SBP) levels in spontaneously hypertensive rats and inhibited the ACE activity. By proteomics coupled with bioinformatics analyses, we identified a novel ACE inhibitory peptide CSBp5 in CSE. CSBp5 significantly inhibited the ACE activity and decreased SBP levels in a dose-dependent manner. Docking analysis showed that CSBp5 occupied the substrate-binding channel of ACE and interacted with ACE via hydrogen bonds. In conclusion, we identified that CSE exhibited anti-hypertensive effects in SHRs via the inhibition of ACE, the target of most anti-hypertensive drugs. In addition, an ACE inhibitory phytopeptide CSBp5 that decreased SBP levels in rats was newly identified. Our findings supported the ethnomedical use of corn silk tea on hypertension. Moreover, the identification of ACE inhibitory phytopeptide in corn silk further strengthened our findings.
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204
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Semis M, Gugiu GB, Bernstein EA, Bernstein KE, Kalkum M. The Plethora of Angiotensin-Converting Enzyme-Processed Peptides in Mouse Plasma. Anal Chem 2019; 91:6440-6453. [PMID: 31021607 DOI: 10.1021/acs.analchem.8b03828] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Angiotensin-converting enzyme (ACE) converts angiotensin I into the potent vasoconstrictor angiotensin II, which regulates blood pressure. However, ACE activity is also essential for other physiological functions, presumably through processing of peptides unrelated to angiotensin. The goal of this study was to identify novel natural substrates and products of ACE through a series of mass-spectrometric experiments. This included comparing the ACE-treated and untreated plasma peptidomes of ACE-knockout (KO) mice, validation with select synthetic peptides, and a quantitative in vivo study of ACE substrates in mice with distinct genetic ACE backgrounds. In total, 244 natural peptides were identified ex vivo as possible substrates or products of ACE, demonstrating high promiscuity of the enzyme. ACE prefers to cleave substrates with Phe or Leu at the C-terminal P2' position and Gly in the P6 position. Pro in P1' and Iso in P1 are typical residues in peptides that ACE does not cleave. Several of the novel ACE substrates are known to have biological activities, including a fragment of complement C3, the spasmogenic C3f, which was processed by ACE ex vivo and in vitro. Analyses with N-domain-inactive (NKO) ACE allowed clarification of domain selectivity toward substrates. The in vivo ACE-substrate concentrations in WT, transgenic ACE-KO, NKO, and CKO mice correspond well with the in vitro observations in that higher levels of the ACE substrates were observed when the processing domain was knocked out. This study highlights the vast extent of ACE promiscuity and provides a valuable platform for further investigations of ACE functionality.
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Affiliation(s)
- Margarita Semis
- Department of Molecular Imaging and Therapy, Diabetes and Metabolism Research Institute , Beckman Research Institute of the City of Hope , Duarte , California 91010 , United States
| | - Gabriel B Gugiu
- Department of Molecular Imaging and Therapy, Diabetes and Metabolism Research Institute , Beckman Research Institute of the City of Hope , Duarte , California 91010 , United States.,Mass Spectrometry & Proteomics Core Facility , Beckman Research Institute of the City of Hope , Duarte , California 91010 , United States
| | - Ellen A Bernstein
- Departments of Biomedical Sciences, Pathology and Laboratory Medicine , Cedars-Sinai Medical Center , Los Angeles , California 90048 , United States
| | - Kenneth E Bernstein
- Departments of Biomedical Sciences, Pathology and Laboratory Medicine , Cedars-Sinai Medical Center , Los Angeles , California 90048 , United States
| | - Markus Kalkum
- Department of Molecular Imaging and Therapy, Diabetes and Metabolism Research Institute , Beckman Research Institute of the City of Hope , Duarte , California 91010 , United States.,Mass Spectrometry & Proteomics Core Facility , Beckman Research Institute of the City of Hope , Duarte , California 91010 , United States
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205
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Garcia-Vaquero M, Mora L, Hayes M. In Vitro and In Silico Approaches to Generating and Identifying Angiotensin-Converting Enzyme I Inhibitory Peptides from Green Macroalga Ulva lactuca. Mar Drugs 2019; 17:E204. [PMID: 30935056 PMCID: PMC6520958 DOI: 10.3390/md17040204] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 12/11/2022] Open
Abstract
A protein extract was generated from the macroalga Ulva lactuca, which was subsequently hydrolysed using the food-grade enzyme papain and angiotensin-converting Enzyme I and renin inhibitory peptides identified using a combination of enrichment strategies employing molecular weight cutoff filtration and mass spectrometry analysis. The generated hydrolysates with the most promising in vitro activity were further purified using preparative RP-HPLC and characterised. The 1 kDa hydrolysate (1 kDa-UFH), purified and collected by preparative RP-HPLC at minutes 41‒44 (Fr41‒44), displayed statistically higher ACE-I inhibitory activities ranging from 96.91% to 98.06%. A total of 48 novel peptides were identified from these four fractions by LC-MS/MS. A simulated gastrointestinal digestion of the identified peptide sequences was carried out using in silico enzyme cleavage simulation tools, resulting in 86 peptide sequences that were further assessed for their potential activity, toxicity and allergenicity using multiple predictive approaches. All the peptides obtained in this study were predicted to be non-toxic. However, 28 out of the 86 novel peptides released after the in silico gastrointestinal digestion were identified as potential allergens. The potential allergenicity of these peptides should be further explored to comply with the current labelling regulations in formulated food products containing U. lactuca protein hydrolysates.
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Affiliation(s)
- Marco Garcia-Vaquero
- School of Veterinary Medicine, University College Dublin (UCD), Belfield, Dublin 4, Ireland.
| | - Leticia Mora
- Instituto de Agroquímica y Tecnología de Alimentos (CSIC), Avenue Agustín Escardino 7, 46980 Paterna (Valencia), Spain.
| | - Maria Hayes
- Food Biosciences Department, TEAGASC, Food Research Centre, Ashtown, Dublin 15, Ireland.
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206
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Spänig S, Heider D. Encodings and models for antimicrobial peptide classification for multi-resistant pathogens. BioData Min 2019; 12:7. [PMID: 30867681 PMCID: PMC6399931 DOI: 10.1186/s13040-019-0196-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 02/24/2019] [Indexed: 01/10/2023] Open
Abstract
Antimicrobial peptides (AMPs) are part of the inherent immune system. In fact, they occur in almost all organisms including, e.g., plants, animals, and humans. Remarkably, they show effectivity also against multi-resistant pathogens with a high selectivity. This is especially crucial in times, where society is faced with the major threat of an ever-increasing amount of antibiotic resistant microbes. In addition, AMPs can also exhibit antitumor and antiviral effects, thus a variety of scientific studies dealt with the prediction of active peptides in recent years. Due to their potential, even the pharmaceutical industry is keen on discovering and developing novel AMPs. However, AMPs are difficult to verify in vitro, hence researchers conduct sequence similarity experiments against known, active peptides. Unfortunately, this approach is very time-consuming and limits potential candidates to sequences with a high similarity to known AMPs. Machine learning methods offer the opportunity to explore the huge space of sequence variations in a timely manner. These algorithms have, in principal, paved the way for an automated discovery of AMPs. However, machine learning models require a numerical input, thus an informative encoding is very important. Unfortunately, developing an appropriate encoding is a major challenge, which has not been entirely solved so far. For this reason, the development of novel amino acid encodings is established as a stand-alone research branch. The present review introduces state-of-the-art encodings of amino acids as well as their properties in sequence and structure based aggregation. Moreover, albeit a well-chosen encoding is essential, performant classifiers are required, which is reflected by a tendency towards specifically designed models in the literature. Furthermore, we introduce these models with a particular focus on encodings derived from support vector machines and deep learning approaches. Albeit a strong focus has been set on AMP predictions, not all of the mentioned encodings have been elaborated as part of antimicrobial research studies, but rather as general protein or peptide representations.
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Affiliation(s)
- Sebastian Spänig
- Department of Bioinformatics, Faculty of Mathematics and Computer Science, Philipps-University of Marburg, Marburg, Germany
| | - Dominik Heider
- Department of Bioinformatics, Faculty of Mathematics and Computer Science, Philipps-University of Marburg, Marburg, Germany
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207
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Peptides from Cauliflower By-Products, Obtained by an Efficient, Ecosustainable, and Semi-Industrial Method, Exert Protective Effects on Endothelial Function. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1046504. [PMID: 30881586 PMCID: PMC6381550 DOI: 10.1155/2019/1046504] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 11/04/2018] [Accepted: 11/12/2018] [Indexed: 12/19/2022]
Abstract
The large amount of cauliflower industry waste represents an unexplored source of bioactive compounds. In this work, peptide hydrolysates from cauliflower leaves were characterized by combined bioanalytical approaches. Twelve peptide fractions were studied to evaluate unexplored biological activities by effect-based cellular bioassays. A potent inhibition of intracellular xanthine oxidase activity was observed in human vascular endothelial cells treated with one fraction, with an IC50 = 8.3 ± 0.6 μg/ml. A different fraction significantly induced the antioxidant enzyme superoxide dismutase 1 and decreased the tumor necrosis factor α-induced VCAM-1 expression, thus leading to a significant improvement in the viability of human vascular endothelial cells. Shotgun peptidomics and bioinformatics were used to retrieve the most probable bioactive peptide sequences. Our study shows that peptides from cauliflower waste should be recycled for producing valuable products useful for the prevention of endothelial dysfunction linked to atherogenesis progression.
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208
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Fan F, Shi P, Chen H, Tu M, Wang Z, Lu W, Du M. Identification and availability of peptides from lactoferrin in the gastrointestinal tract of mice. Food Funct 2019; 10:879-885. [DOI: 10.1039/c8fo01998c] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The metabolic fate of lactoferrin in vivo.
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Affiliation(s)
- Fengjiao Fan
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Pujie Shi
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Hui Chen
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian 116034
- China
| | - Maolin Tu
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Zhenyu Wang
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian 116034
- China
| | - Weihong Lu
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
| | - Ming Du
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150090
- China
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209
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Tu M, Liu H, Cheng S, Mao F, Chen H, Fan F, Lu W, Du M. Identification and characterization of a novel casein anticoagulant peptide derived from in vivo digestion. Food Funct 2019; 10:2552-2559. [DOI: 10.1039/c8fo02546k] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A novel anticoagulant casein peptide has been identified by in vivo digestion.
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Affiliation(s)
- Maolin Tu
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Hanxiong Liu
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian 116034
- China
| | - Shuzhen Cheng
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian 116034
- China
| | - Fengjiao Mao
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian 116034
- China
| | - Hui Chen
- School of Food Science and Technology
- National Engineering Research Center of Seafood
- Dalian Polytechnic University
- Dalian 116034
- China
| | - Fengjiao Fan
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Weihong Lu
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
| | - Ming Du
- Department of Food Science and Engineering
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- China
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210
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Han R, Maycock J, Murray BS, Boesch C. Identification of angiotensin converting enzyme and dipeptidyl peptidase-IV inhibitory peptides derived from oilseed proteins using two integrated bioinformatic approaches. Food Res Int 2019; 115:283-291. [PMID: 30599943 DOI: 10.1016/j.foodres.2018.12.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 11/25/2018] [Accepted: 12/11/2018] [Indexed: 12/11/2022]
Abstract
Angiotensin-converting enzyme (ACE) and dipeptidyl peptidase-IV (DPP-IV) play critical roles in the development of hypertension and type 2 diabetes, respectively. Inhibiting ACE and DPP-IV activity using peptides has become part of new therapeutic strategies for supporting medicinal treatment of both diseases. In this study, oilseed proteins, including soybean, flaxseed, rapeseed, sunflower and sesame are evaluated for the possibility of generating ACE and DPP-IV inhibitory peptides using different integrated bioinformatic approaches (UniProt knowledgebase, ProtParam, BLAST, BIOPEP, PeptideRanker, Pepsite2 and ToxinPred), and three bovine proteins (β-lactoglobulin, β-casein and κ-casein) as comparisons. Compared with bovine proteins, the potency indices of ACE and DPP-IV inhibitory peptides, calculated using the BIOPEP database, suggest that oilseed proteins may be considered as good precursors of ACE inhibitory peptides but generate a relative lower yield of DPP-IV inhibitory peptides following subtilisin, pepsin (pH = 1.3) or pepsin (pH > 2) hydrolysis. Average scores aligned using PeptideRanker confirmed oilseed proteins as significant potential sources of bioactive peptides: over 105 peptides scored over 0.8. Pepsite2 predicted that these peptides would largely bind via Gln281, His353, Lys511, His513, Tyr520 and Tyr523 of ACE to inhibit the enzyme, while Trp629 would be the predominant binding site of peptides in reducing DPP-IV activity. All peptides were capable of inhibiting ACE and DPP-IV whilst 65 of these 105 peptides are not currently recorded in BIOPEP database. In conclusion, our in silico study demonstrates that oilseed proteins could be considered as good precursors of ACE and DPP-IV inhibitory peptides as well as so far unexplored peptides that potentially have roles in ACE and DPP-IV inhibition and beyond.
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Affiliation(s)
- Ruixian Han
- School of Food Science and Nutrition, University of Leeds, LS2 9JT Leeds, UK
| | - Joanne Maycock
- School of Food Science and Nutrition, University of Leeds, LS2 9JT Leeds, UK
| | - Brent S Murray
- School of Food Science and Nutrition, University of Leeds, LS2 9JT Leeds, UK
| | - Christine Boesch
- School of Food Science and Nutrition, University of Leeds, LS2 9JT Leeds, UK.
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211
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Corrêa JAF, Yurgel S, Udenigwe C, Luciano FB. Estabelecimento de sistema bacteriano de expressão de peptídeos derivados da enzima vegetal RuBisCO. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2019. [DOI: 10.1590/1981-6723.18018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Resumo O objetivo do presente estudo foi estabelecer um sistema bacteriano de expressão de peptídeos derivados da proteólise simulada in silico da enzima ribulose-1,5-bisfosfato carboxilase oxigenase (RuBisCO), proveniente de soja, visando viabilizar um método sustentável de produção dessas moléculas para futura aplicação industrial. Inicialmente, foi conferida à cepa Escherichia coli S17-1 cálcio-competência para propagação do plasmídeo de expressão pET-30a(+) contendo o inserto codificante da sequência peptídica GSIKAFKEATKVDKVVVLWTALVPR. Após extração de DNA plasmidial, o material foi transformado em células de alto rendimento E. coli Rosetta™(DE3)pLysS. As células Rosetta portando o plasmídeo de expressão foram induzidas e a produção dos peptídeos foi verificada por meio de eletroforese em gel vertical, confirmando o estabelecimento de um sistema de expressão viável para peptídeos heterólogos. Assim, a produção em maior escala de peptídeos derivados de RuBisCO – associando-se futuramente etapas de purificação e ativação – torna-se possível. Além disso, o método aqui estabelecido pode também ser aplicado utilizando diferentes sequências peptídicas com atividade antimicrobiana.
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212
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Identification of Pinto bean peptides with inhibitory effects on α-amylase and angiotensin converting enzyme (ACE) activities using an integrated bioinformatics-assisted approach. Food Chem 2018; 267:124-131. [DOI: 10.1016/j.foodchem.2017.04.166] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/17/2017] [Accepted: 04/26/2017] [Indexed: 11/22/2022]
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213
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Raveschot C, Cudennec B, Coutte F, Flahaut C, Fremont M, Drider D, Dhulster P. Production of Bioactive Peptides by Lactobacillus Species: From Gene to Application. Front Microbiol 2018; 9:2354. [PMID: 30386307 PMCID: PMC6199461 DOI: 10.3389/fmicb.2018.02354] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 09/13/2018] [Indexed: 11/19/2022] Open
Abstract
To compensate for their amino acid auxotrophy, lactobacilli have developed the ability to hydrolyze proteins present in their environment. This proteolytic activity not only generates the free amino acids needed by the bacteria, but also a large variety of peptides, some of which are endowed with biological activities. These so-called “bioactive peptides” (BAPs) are interesting from a nutrition and healthcare perspective. The use of lactic acid bacteria (LAB) such as lactobacilli is an effective strategy for production and valorization of new BAPs. The proteolytic activity of lactobacilli is exerted in a strain- and species-dependent manner: each species exhibits different proteinase content, leading to a large variety of proteolytic activities. This underlines the high potential of Lactobacillus strains to produce novel hydrolysates and BAPs of major interest. This review aims at discussing the potential of different Lactobacillus species to release BAPs from fermentation media and processes. Strategies used for peptide production are presented. Additionally, we propose a methodology to select the most promising Lactobacillus strains as sources of BAPs. This methodology combines conventional approaches and in silico analyses.
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Affiliation(s)
- Cyril Raveschot
- INRA, ISA, EA 7394-ICV Institut Charles Viollette, Université Lille, Université d'Artois, Université Littoral Côte d'Opale, Lille, France.,VF Bioscience, Parc Eurasanté, Loos-lez-Lille, France
| | - Benoit Cudennec
- INRA, ISA, EA 7394-ICV Institut Charles Viollette, Université Lille, Université d'Artois, Université Littoral Côte d'Opale, Lille, France
| | - François Coutte
- INRA, ISA, EA 7394-ICV Institut Charles Viollette, Université Lille, Université d'Artois, Université Littoral Côte d'Opale, Lille, France
| | - Christophe Flahaut
- INRA, ISA, EA 7394-ICV Institut Charles Viollette, Université Lille, Université d'Artois, Université Littoral Côte d'Opale, Lille, France
| | - Marc Fremont
- VF Bioscience, Parc Eurasanté, Loos-lez-Lille, France
| | - Djamel Drider
- INRA, ISA, EA 7394-ICV Institut Charles Viollette, Université Lille, Université d'Artois, Université Littoral Côte d'Opale, Lille, France
| | - Pascal Dhulster
- INRA, ISA, EA 7394-ICV Institut Charles Viollette, Université Lille, Université d'Artois, Université Littoral Côte d'Opale, Lille, France
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214
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Yi Y, Lv Y, Zhang L, Yang J, Shi Q. High Throughput Identification of Antihypertensive Peptides from Fish Proteome Datasets. Mar Drugs 2018; 16:E365. [PMID: 30279337 PMCID: PMC6212880 DOI: 10.3390/md16100365] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 09/21/2018] [Accepted: 09/24/2018] [Indexed: 12/14/2022] Open
Abstract
Antihypertensive peptides (AHTPs) are a group of small peptides with the main role to block key enzymes or receptors in the angiotensin genesis pathway. A great number of AHTPs have been isolated or digested from natural food resources; however, comprehensive studies on comparisons of AHTPs in various species from the perspective of big data are rare. Here, we established a simplified local AHTP database, and performed in situ mapping for high throughput identification of AHTPs with high antihypertensive activity from high-quality whole proteome datasets of 18 fish species. In the 35 identified AHTPs with reported high activity, we observed that Gly-Leu-Pro, Leu-Pro-Gly, and Val-Ser-Val are the major components of fish proteins, and AHTP hit numbers in various species demonstrated a similar distributing pattern. Interestingly, Atlantic salmon (Salmo salar) is in possession of far more abundant AHTPs compared with other fish species. In addition, collagen subunit protein is the largest group with more matching AHTPs. Further exploration of two collagen subunits (col4a5 and col8a1) in more fish species suggested that the hit pattern of these conserved proteins among teleost is almost the same, and their phylogeny is consistent with the evolution of these fish species. In summary, our present study provides basic information for the relationship of AHTPs with fish proteins, which sheds light on rapid discovery of marine drugs or food additives from fish protein hydrolysates to alleviate hypertension.
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Affiliation(s)
- Yunhai Yi
- School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen 518055, China.
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China.
| | - Yunyun Lv
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China.
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China.
| | - Lijun Zhang
- School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Jian Yang
- School of Applied Chemistry and Biotechnology, Shenzhen Polytechnic, Shenzhen 518055, China.
| | - Qiong Shi
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China.
- Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Academy of Marine Sciences, BGI Marine, BGI, Shenzhen 518083, China.
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215
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Rani S, Pooja K, Pal GK. Exploration of rice protein hydrolysates and peptides with special reference to antioxidant potential: Computational derived approaches for bio-activity determination. Trends Food Sci Technol 2018. [DOI: 10.1016/j.tifs.2018.07.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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216
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Corrochano AR, Arranz E, De Noni I, Stuknytė M, Ferraretto A, Kelly PM, Buckin V, Giblin L. Intestinal health benefits of bovine whey proteins after simulated gastrointestinal digestion. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.08.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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217
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Yu Z, Fan Y, Zhao W, Ding L, Li J, Liu J. Novel Angiotensin-Converting Enzyme Inhibitory Peptides Derived from Oncorhynchus mykiss Nebulin: Virtual Screening and In Silico Molecular Docking Study. J Food Sci 2018; 83:2375-2383. [PMID: 30101981 DOI: 10.1111/1750-3841.14299] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Revised: 06/08/2018] [Accepted: 06/24/2018] [Indexed: 12/17/2022]
Abstract
Excessive concentrations of angiotensin-converting enzyme (ACE) can give rise to high blood pressure, and is harmful to the body. ACE inhibitory peptides from food proteins are considered good sources of function food. However, the preparation of ACE inhibitory peptides by classical method faces many challenges. Three novel ACE inhibitory peptides were identified by in silico methods, and showed potent activity against ACE in vitro. The simulation hydrolysis of nebulin was performed with ExPASy PeptideCutter program. Potential activity, solubility, and absorption, distribution, metabolism, excretion, and toxicity properties of generated peptides were predicted using program online. Molecular docking displayed that EGF, HGR, and VDF were docked into the S1 and S2 pockets of ACE. Meanwhile, Phe and Arg at the C-terminal enhance ACE affinity. The IC50 values of EGF, HGR, and VDF were 474.65 ± 0.08, 106.21 ± 0.52, and 439.27 ± 0.09 μM, respectively. Three peptides EGF, HGR, and VDF from Oncorhynchus mykiss nebulin were identified, and the molecular mechanism between ACE and peptides was clarified using in silico methods. The results suggested that Oncorhynchus mykiss nebulin would be an attractive raw material of antihypertensive nutraceutical ingredients. PRACTICAL APPLICATION This study has shown the potential of Oncorhynchus mykiss nebulin as good sources for producing ACE inhibitory peptides. According to this finding, in silico approach is the feasible way for prediction and identification of food-derived ACE inhibitory peptides in emerging nutraceutical field.
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Affiliation(s)
- Zhipeng Yu
- College of Food Science and Engineering, Bohai Univ., Jinzhou, 121013, P.R. China
| | - Yue Fan
- College of Food Science and Engineering, Bohai Univ., Jinzhou, 121013, P.R. China
| | - Wenzhu Zhao
- College of Food Science and Engineering, Bohai Univ., Jinzhou, 121013, P.R. China
| | - Long Ding
- Lab of Nutrition and Functional Food, Jilin Univ., Changchun, 130062, P.R. China
| | - Jianrong Li
- College of Food Science and Engineering, Bohai Univ., Jinzhou, 121013, P.R. China
| | - Jingbo Liu
- Lab of Nutrition and Functional Food, Jilin Univ., Changchun, 130062, P.R. China
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218
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Tu M, Cheng S, Lu W, Du M. Advancement and prospects of bioinformatics analysis for studying bioactive peptides from food-derived protein: Sequence, structure, and functions. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2018.04.005] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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219
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Abstract
Since the 1980s, deep learning and biomedical data have been coevolving and feeding each other. The breadth, complexity, and rapidly expanding size of biomedical data have stimulated the development of novel deep learning methods, and application of these methods to biomedical data have led to scientific discoveries and practical solutions. This overview provides technical and historical pointers to the field, and surveys current applications of deep learning to biomedical data organized around five subareas, roughly of increasing spatial scale: chemoinformatics, proteomics, genomics and transcriptomics, biomedical imaging, and health care. The black box problem of deep learning methods is also briefly discussed.
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Affiliation(s)
- Pierre Baldi
- Department of Computer Science, Institute for Genomics and Bioinformatics, and Center for Machine Learning and Intelligent Systems, University of California, Irvine, California 92697, USA
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220
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Qiao M, Tu M, Chen H, Mao F, Yu C, Du M. Identification and In Silico Prediction of Anticoagulant Peptides from the Enzymatic Hydrolysates of Mytilus edulis Proteins. Int J Mol Sci 2018; 19:ijms19072100. [PMID: 30029529 PMCID: PMC6073223 DOI: 10.3390/ijms19072100] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 07/02/2018] [Accepted: 07/12/2018] [Indexed: 01/13/2023] Open
Abstract
Mytilus edulis is a typical marine bivalve mollusk. Many kinds of bioactive components with nutritional and pharmaceutical activities in Mytilus edulis were reported. In this study, eight different parts of Mytilus edulis tissues, i.e., the foot, byssus, pedal retractor muscle, mantle, gill, adductor muscle, viscera, and other parts, were separated and the proteins from these tissues were prepared. A total of 277 unique peptides from the hydrolysates of different proteins were identified by UPLC-Q-TOF-MS/MS, and the molecular weight distribution of the peptides in different tissues was investigated by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The bioactivity of the peptides was predicted through the Peptide Ranker database and molecular docking. Moreover, the peptides from the adductor muscle were chosen to do the active validation of anticoagulant activity. The active mechanism of three peptides from the adductor muscle, VQQELEDAEERADSAEGSLQK, RMEADIAAMQSDLDDALNGQR, and AAFLLGVNSNDLLK, were analyzed by Discovery Studio 2017, which also explained the anticoagulant activity of the hydrolysates of proteins from adductor muscle. This study optimized a screening and identification method of bioactive peptides from enzymatic hydrolysates of different tissues in Mytilus edulis.
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Affiliation(s)
- Meiling Qiao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
| | - Maolin Tu
- Department of Food Science and Engineering, Harbin Institute of Technology, Harbin 150090, China.
| | - Hui Chen
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
| | - Fengjiao Mao
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
| | - Cuiping Yu
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
| | - Ming Du
- National Engineering Research Center of Seafood, School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, China.
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221
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In silico methods to identify ACE and DPP-IV inhibitory activities of ribosomal hazelnut proteins. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2018. [DOI: 10.1007/s11694-018-9878-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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222
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Tu M, Liu H, Zhang R, Chen H, Fan F, Shi P, Xu X, Lu W, Du M. Bioactive hydrolysates from casein: generation, identification, and in silico toxicity and allergenicity prediction of peptides. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:3416-3426. [PMID: 29280148 DOI: 10.1002/jsfa.8854] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 12/15/2017] [Accepted: 12/15/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND Bioactive casein peptides have attracted considerable attention for their applications in industry. However, there is little clarity regarding mass spectrometric profiles for peptides in enzymatic hydrolysates of casein produced under varying conditions. In this study, the compositions of the peptides from casein hydrolysates were compared for different enzyme/substrate ratio (E/S) and hydrolysis times. The toxicity, allergenicity and bioactivity of the identified peptides were assessed in silico. RESULTS A total of 70 unique peptides were identified, and there were 28, 21, 13 and 8 peptides from αs1 -casein, αs2 -casein, β-casein and κ-casein respectively. The peptide number decreased with the increase in E/S and hydrolysis time. Moreover, peptides with relative molecular mass Mr ranging from 1000 to 1500 Da occupied the highest proportion of 31.43%, and almost all of the peptides showed Mr less than 5000 Da. In silico analysis showed that all of the peptides were non-toxic and non-allergenic, and several of them were assessed by PeptideRanker as having a relatively high likelihood of being bioactive peptides. CONCLUSIONS Composition of the peptides in the casein hydrolysates varied with the enzymolysis conditions. This study's results may facilitate the production of target bioactive peptides by controlling E/S and hydrolysis time, which is beneficial for the application of casein peptides in the functional food industry. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Maolin Tu
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Hanxiong Liu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Ruyi Zhang
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Hui Chen
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Fengjiao Fan
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Pujie Shi
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Xianbing Xu
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
| | - Weihong Lu
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
| | - Ming Du
- Department of Food Science and Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, China
- School of Food Science and Technology, National Engineering Research Center of Seafood, Dalian Polytechnic University, Dalian, China
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223
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Characterization of antioxidant and angiotensin-converting enzyme inhibitory peptides derived from cauliflower by-products by multidimensional liquid chromatography and bioinformatics. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.02.022] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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224
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Anekthanakul K, Hongsthong A, Senachak J, Ruengjitchatchawalya M. SpirPep: an in silico digestion-based platform to assist bioactive peptides discovery from a genome-wide database. BMC Bioinformatics 2018; 19:149. [PMID: 29678128 PMCID: PMC5910554 DOI: 10.1186/s12859-018-2143-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Accepted: 04/03/2018] [Indexed: 12/22/2022] Open
Abstract
Background Bioactive peptides, including biological sources-derived peptides with different biological activities, are protein fragments that influence the functions or conditions of organisms, in particular humans and animals. Conventional methods of identifying bioactive peptides are time-consuming and costly. To quicken the processes, several bioinformatics tools are recently used to facilitate screening of the potential peptides prior their activity assessment in vitro and/or in vivo. In this study, we developed an efficient computational method, SpirPep, which offers many advantages over the currently available tools. Results The SpirPep web application tool is a one-stop analysis and visualization facility to assist bioactive peptide discovery. The tool is equipped with 15 customized enzymes and 1–3 miscleavage options, which allows in silico digestion of protein sequences encoded by protein-coding genes from single, multiple, or genome-wide scaling, and then directly classifies the peptides by bioactivity using an in-house database that contains bioactive peptides collected from 13 public databases. With this tool, the resulting peptides are categorized by each selected enzyme, and shown in a tabular format where the peptide sequences can be tracked back to their original proteins. The developed tool and webpages are coded in PHP and HTML with CSS/JavaScript. Moreover, the tool allows protein-peptide alignment visualization by Generic Genome Browser (GBrowse) to display the region and details of the proteins and peptides within each parameter, while considering digestion design for the desirable bioactivity. SpirPep is efficient; it takes less than 20 min to digest 3000 proteins (751,860 amino acids) with 15 enzymes and three miscleavages for each enzyme, and only a few seconds for single enzyme digestion. Obviously, the tool identified more bioactive peptides than that of the benchmarked tool; an example of validated pentapeptide (FLPIL) from LC-MS/MS was demonstrated. The web and database server are available at http://spirpepapp.sbi.kmutt.ac.th. Conclusion SpirPep, a web-based bioactive peptide discovery application, is an in silico-based tool with an overview of the results. The platform is a one-stop analysis and visualization facility; and offers advantages over the currently available tools. This tool may be useful for further bioactivity analysis and the quantitative discovery of desirable peptides. Electronic supplementary material The online version of this article (10.1186/s12859-018-2143-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Krittima Anekthanakul
- Biotechnology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi (Bang Khun Thian), 49 Soi Thian Thale 25, Bang Khun Thian Chai Thale Rd., Tha Kham, Bang Khun Thian, Bangkok, 10150, Thailand
| | - Apiradee Hongsthong
- Biochemical Engineering and Pilot Plant Research and Development Unit, National Center for Genetic Engineering and Biotechnology at King Mongkut's University of Technology Thonburi, 49 Soi Thian Thale 25, Bang Khun Thian Chai Thale Rd., Tha Kham, Bang Khun Thian, Bangkok, 10150, Thailand
| | - Jittisak Senachak
- Biochemical Engineering and Pilot Plant Research and Development Unit, National Center for Genetic Engineering and Biotechnology at King Mongkut's University of Technology Thonburi, 49 Soi Thian Thale 25, Bang Khun Thian Chai Thale Rd., Tha Kham, Bang Khun Thian, Bangkok, 10150, Thailand
| | - Marasri Ruengjitchatchawalya
- Biotechnology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi (Bang Khun Thian), 49 Soi Thian Thale 25, Bang Khun Thian Chai Thale Rd., Tha Kham, Bang Khun Thian, Bangkok, 10150, Thailand. .,Bioinformatics and Systems Biology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi (Bang Khun Thian), 49 Soi Thian Thale 25, Bang Khun Thian Chai Thale Rd., Tha Kham, Bang Khun Thian, Bangkok, 10150, Thailand.
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225
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Evaristus NA, Wan Abdullah WN, Gan CY. Extraction and identification of α-amylase inhibitor peptides from Nephelium lappacheum and Nephelium mutabile seed protein using gastro-digestive enzymes. Peptides 2018; 102:61-67. [PMID: 29510154 DOI: 10.1016/j.peptides.2018.03.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/15/2018] [Accepted: 03/01/2018] [Indexed: 02/05/2023]
Abstract
The potential of N. lappacheum and N. mutabile seed as a source of α-amylase inhibitor peptides was explored based on the local traditional practice of using the seed. Different gastro-digestive enzymes (i.e. pepsin or chymotrypsin) or a sequential digestion were used to extract the peptides. The effects of digestion time and enzyme to substrate (E:S) ratio on the α-amylase inhibitory activity were investigated. Results showed that chymotrypsin was effective in producing the inhibitor peptides from rambutan seed protein at E:S ratio 1:20 for 1 h, whereas pepsin was more effective for pulasan seed protein under the same condition. A total of 20 and 31 novel inhibitor peptides were identified, respectively. These peptides could bind with the subsites of α-amylase (i.e. Trp58, Trp59, Tyr62, Asp96, Arg195, Asp197, Glu233, His299, Asp300, and His305) and formed a sliding barrier that preventing the formation of enzyme/substrate intermediate leading to lower α-amylase activity.
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Affiliation(s)
- Natashya Anak Evaristus
- Analytical Biochemistry Research Centre, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia; School of Industrial Technology, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
| | | | - Chee-Yuen Gan
- Analytical Biochemistry Research Centre, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia.
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226
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Mudgil P, Kamal H, Yuen GC, Maqsood S. Characterization and identification of novel antidiabetic and anti-obesity peptides from camel milk protein hydrolysates. Food Chem 2018; 259:46-54. [PMID: 29680061 DOI: 10.1016/j.foodchem.2018.03.082] [Citation(s) in RCA: 128] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 03/18/2018] [Accepted: 03/19/2018] [Indexed: 01/08/2023]
Abstract
In-vitro inhibitory properties of peptides released from camel milk proteins against dipeptidyl peptidase-IV (DPP-IV), porcine pancreatic α-amylase (PPA), and porcine pancreatic lipase (PPL) were studied. Results revealed that upon hydrolysis by different enzymes, camel milk proteins displayed dramatic increase in inhibition of DPP-IV and PPL, but slight improvement in PPA inhibition was noticed. Peptide sequencing revealed a total of 20 and 3 peptides for A9 and B9 hydrolysates respectively, obtained the score of 0.8 or more on peptide ranker and were categorized as potential DPP-IV inhibitory peptides. KDLWDDFKGL in A9 and MPSKPPLL in B9 were identified as most potent PPA inhibitory peptide. For PPL inhibition only 7 and 2 peptides qualified as PPL inhibitory peptides from hydrolysates A9 and B9, respectively. The present study report for the first time PPA and PPL inhibitory and only second for DPP-IV inhibitory potential of protein hydrolysates from camel milk.
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Affiliation(s)
- Priti Mudgil
- Food Science Department, College of Food and Agriculture, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Hina Kamal
- Food Science Department, College of Food and Agriculture, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Gan Chee Yuen
- Analytical Biochemistry Research Centre (ABrC), Universiti Sains Malaysia, 11800 USM Penang, Malaysia.
| | - Sajid Maqsood
- Food Science Department, College of Food and Agriculture, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.
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227
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Dingess KA, de Waard M, Boeren S, Vervoort J, Lambers TT, van Goudoever JB, Hettinga K. Human milk peptides differentiate between the preterm and term infant and across varying lactational stages. Food Funct 2018; 8:3769-3782. [PMID: 28959809 DOI: 10.1039/c7fo00539c] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Variations in endogenous peptide profiles, functionality, and the enzymes responsible for the formation of these peptides in human milk are understudied. Additionally, there is a lack of knowledge regarding peptides in donor human milk, which is used to feed preterm infants when mother's own milk is not (sufficiently) available. To assess this, 29 human milk samples from the Dutch Human Milk Bank were analyzed as three groups, preterm late lactation stage (LS) (n = 12), term early (n = 8) and term late LS (n = 9). Gestational age (GA) groups were defined as preterm (24-36 weeks) and term (≥37 weeks). LS was determined as days postpartum as early (16-36 days) or late (55-88 days). Peptides, analyzed by LC-MS/MS, and parent proteins (proteins from matched peptide sequences) were identified and quantified, after which peptide functionality and the enzymes responsible for protein cleavage were determined. A total of 16 different parent proteins were identified from human milk, with no differences by GA or LS. We identified 1104 endogenous peptides, of which, the majority were from the parent proteins β-casein, polymeric immunoglobulin receptor, αs1-casein, osteopontin, and κ-casein. The absolute number of peptides differed by GA and LS with 30 and 41 differing sequences respectively (p < 0.05) Odds likelihood tests determined that 32 peptides had a predicted bioactive functionality, with no significant differences between groups. Enzyme prediction analysis showed that plasmin/trypsin enzymes most likely cleaved the identified human milk peptides. These results explain some of the variation in endogenous peptides in human milk, leading to future targets that may be studied for functionality.
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Affiliation(s)
- Kelly A Dingess
- Dairy Science and Technology, Food Quality and Design Group, Wageningen University, The Netherlands.
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228
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Dullius A, Goettert MI, de Souza CFV. Whey protein hydrolysates as a source of bioactive peptides for functional foods – Biotechnological facilitation of industrial scale-up. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.063] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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229
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Ibrahim MA, Bester MJ, Neitz AW, Gaspar ARM. Tuber Storage Proteins as Potential Precursors of Bioactive Peptides: An In Silico Analysis. Int J Pept Res Ther 2018. [DOI: 10.1007/s10989-018-9688-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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230
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Fu Y, Therkildsen M, Aluko RE, Lametsch R. Exploration of collagen recovered from animal by-products as a precursor of bioactive peptides: Successes and challenges. Crit Rev Food Sci Nutr 2018; 59:2011-2027. [DOI: 10.1080/10408398.2018.1436038] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Yu Fu
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
| | | | - Rotimi E. Aluko
- Department of Human Nutritional Sciences, University of Manitoba, Winnipeg, MB, Winnipeg, Canada
| | - René Lametsch
- Department of Food Science, Faculty of Science, University of Copenhagen, Frederiksberg C, Denmark
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231
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Peptidomic strategy for purification and identification of potential ACE-inhibitory and antioxidant peptides in Tetradesmus obliquus microalgae. Anal Bioanal Chem 2018; 410:3573-3586. [DOI: 10.1007/s00216-018-0925-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/15/2018] [Accepted: 01/29/2018] [Indexed: 01/10/2023]
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232
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Garg S, Apostolopoulos V, Nurgali K, Mishra VK. Evaluation of in silico approach for prediction of presence of opioid peptides in wheat. J Funct Foods 2018. [DOI: 10.1016/j.jff.2017.12.022] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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233
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Recent trends and analytical challenges in plant bioactive peptide separation, identification and validation. Anal Bioanal Chem 2018; 410:3425-3444. [PMID: 29353433 DOI: 10.1007/s00216-018-0852-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/12/2017] [Accepted: 01/03/2018] [Indexed: 12/11/2022]
Abstract
Interest in research into bioactive peptides (BPs) is growing because of their health-promoting ability. Several bioactivities have been ascribed to peptides, including antioxidant, antihypertensive and antimicrobial properties. As they can be produced from precursor proteins, the investigation of BPs in foods is becoming increasingly popular. For the same reason, production of BPs from by-products has also emerged as a possible means of reducing waste and recovering value-added compounds suitable for functional food production and supplements. Milk, meat and fish are the most investigated sources of BPs, but vegetable-derived peptides are also of interest. Vegetables are commonly consumed, and agro-industrial wastes constitute a cheap, large and lower environmental impact source of proteins. The use of advanced analytical techniques for separation and identification of peptides would greatly benefit the discovery of new BPs. In this context, this review provides an overview of the most recent applications in BP investigations for vegetable food and by-products. The most important issues regarding peptide isolation and separation, by single or multiple chromatographic techniques, are discussed. Additionally, problems connected with peptide identification in plants and non-model plants are discussed regarding the particular case of BP identification. Finally, the issue of peptide validation to confirm sequence and bioactivity is presented. Graphical representation of the analytical workflow needed for investigation of bioactive peptides and applied to vegetables and vegetable wastes Graphical Abstract.
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234
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Yu Z, Wu S, Zhao W, Ding L, Shiuan D, Chen F, Li J, Liu J. Identification and the molecular mechanism of a novel myosin-derived ACE inhibitory peptide. Food Funct 2018; 9:364-370. [DOI: 10.1039/c7fo01558e] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The objective of this work was to identify a novel ACE inhibitory peptide from myosin using a number of in silico methods.
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Affiliation(s)
- Zhipeng Yu
- College of Food Science and Engineering
- Bohai University
- Jinzhou 121013
- P.R. China
- Department of Food Science and Human Nutrition
| | - Sijia Wu
- College of Food Science and Engineering
- Bohai University
- Jinzhou 121013
- P.R. China
| | - Wenzhu Zhao
- College of Food Science and Engineering
- Bohai University
- Jinzhou 121013
- P.R. China
| | - Long Ding
- Lab of Nutrition and Functional Food
- Jilin University
- Changchun 130062
- P.R. China
| | - David Shiuan
- College of Food Science and Engineering
- Bohai University
- Jinzhou 121013
- P.R. China
| | - Feng Chen
- Department of Food Science and Human Nutrition
- Clemson University
- Clemson
- USA
| | - Jianrong Li
- College of Food Science and Engineering
- Bohai University
- Jinzhou 121013
- P.R. China
| | - Jingbo Liu
- Lab of Nutrition and Functional Food
- Jilin University
- Changchun 130062
- P.R. China
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235
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Shang WH, Tang Y, Su SY, Han JR, Yan JN, Wu HT, Zhu BW. In silicoassessment and structural characterization of antioxidant peptides from major yolk protein of sea urchinStrongylocentrotus nudus. Food Funct 2018; 9:6435-6443. [DOI: 10.1039/c8fo01668b] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Sea urchin gonads have been demonstrated to contain major yolk protein (MYP), which can be hydrolyzed by enzymes to release biologically active peptides.
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Affiliation(s)
- Wen-Hui Shang
- School of Food Science and Technology
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Yue Tang
- School of Food Science and Technology
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
- National Engineering Research Center of Seafood
| | - Sheng-Yi Su
- School of Food Science and Technology
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Jia-Run Han
- School of Food Science and Technology
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Jia-Nan Yan
- School of Food Science and Technology
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
| | - Hai-Tao Wu
- School of Food Science and Technology
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
- National Engineering Research Center of Seafood
| | - Bei-Wei Zhu
- School of Food Science and Technology
- Dalian Polytechnic University
- Dalian 116034
- P. R. China
- National Engineering Research Center of Seafood
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236
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Ghorab H, Lammi C, Arnoldi A, Kabouche Z, Aiello G. Proteomic analysis of sweet algerian apricot kernels (Prunus armeniaca L.) by combinatorial peptide ligand libraries and LC–MS/MS. Food Chem 2018; 239:935-945. [DOI: 10.1016/j.foodchem.2017.07.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Revised: 06/09/2017] [Accepted: 07/11/2017] [Indexed: 12/31/2022]
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237
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Pooja K, Rani S, Prakash B. In silicoapproaches towards the exploration of rice bran proteins-derived angiotensin-I-converting enzyme inhibitory peptides. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2017.1368552] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Km Pooja
- Department of Botany, Chaudhary Charan Singh University, Meerut, Uttar Pradesh, India
| | - Sapna Rani
- Dairy Microbiology Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India
| | - Bhanu Prakash
- Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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238
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Enhancing bioactive peptide release and identification using targeted enzymatic hydrolysis of milk proteins. Anal Bioanal Chem 2017; 410:3407-3423. [PMID: 29260283 DOI: 10.1007/s00216-017-0793-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/21/2017] [Accepted: 11/28/2017] [Indexed: 12/29/2022]
Abstract
Milk proteins have been extensively studied for their ability to yield a range of bioactive peptides following enzymatic hydrolysis/digestion. However, many hurdles still exist regarding the widespread utilization of milk protein-derived bioactive peptides as health enhancing agents for humans. These mostly arise from the fact that most milk protein-derived bioactive peptides are not highly potent. In addition, they may be degraded during gastrointestinal digestion and/or have a low intestinal permeability. The targeted release of bioactive peptides during the enzymatic hydrolysis of milk proteins may allow the generation of particularly potent bioactive hydrolysates and peptides. Therefore, the development of milk protein hydrolysates capable of improving human health requires, in the first instance, optimized targeted release of specific bioactive peptides. The targeted hydrolysis of milk proteins has been aided by a range of in silico tools. These include peptide cutters and predictive modeling linking bioactivity to peptide structure [i.e., molecular docking, quantitative structure activity relationship (QSAR)], or hydrolysis parameters [design of experiments (DOE)]. Different targeted enzymatic release strategies employed during the generation of milk protein hydrolysates are reviewed herein and their limitations are outlined. In addition, specific examples are provided to demonstrate how in silico tools may help in the identification and discovery of potent milk protein-derived peptides. It is anticipated that the development of novel strategies employing a range of in silico tools may help in the generation of milk protein hydrolysates containing potent and bioavailable peptides, which in turn may be used to validate their health promoting effects in humans. Graphical abstract The targeted enzymatic hydrolysis of milk proteins may allow the generation of highly potent and bioavailable bioactive peptides.
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239
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Utilization of blood by-products: An in silico and experimental combined study for BSA usage. Sci Rep 2017; 7:17250. [PMID: 29222431 PMCID: PMC5722935 DOI: 10.1038/s41598-017-17029-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 11/21/2017] [Indexed: 11/08/2022] Open
Abstract
In order to exploit industrial discards, protein enzymatic hydrolysis is a currently popular methodology for obtaining bioactive peptides. However, once released, most promising peptides have to be selected from the mixture. In this work, the suitability of pepsin (EC 3.4.23.1) to hydrolyse serum albumin in order to obtain bioactive peptides was assessed. Then, a suitable process to obtain best separation of bioactive peptides was evaluated, using polyethersulfone membranes at different pH values. Serum albumin was easily hydrolysed by pepsin, reaching a DH value of the 65.64 ± 1.57% of the maximum possible. A 23.25% of the identified peptides possessed high bioactivity scores (greater than 0.5), and one of them had reported bioactivity (LLL). Charge mechanisms always predominated over the sieve effect, and best transmission was accomplished at pH values close to the peptides isoelectric points. Basic and neutral peptides with the highest scores were always the most transmitted. Membrane material had greater influence than NMWCO in determining peptide transmission. In order to obtain purified fractions rich in peptides with high bioactivity scores from serum albumin, polyethersulfone membranes (applicable to industrial scale) of 5 kDa MWCO should be used at basic pH values after pepsin digestion.
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240
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Bleakley S, Hayes M, O' Shea N, Gallagher E, Lafarga T. Predicted Release and Analysis of Novel ACE-I, Renin, and DPP-IV Inhibitory Peptides from Common Oat (Avena sativa) Protein Hydrolysates Using in Silico Analysis. Foods 2017; 6:E108. [PMID: 29207547 PMCID: PMC5742776 DOI: 10.3390/foods6120108] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 11/23/2017] [Accepted: 11/27/2017] [Indexed: 12/24/2022] Open
Abstract
The renin-angiotensin-aldosterone system (RAAS) plays an important role in regulating hypertension by controlling vasoconstriction and intravascular fluid volume. RAAS itself is largely regulated by the actions of renin (EC 3.4.23.15) and the angiotensin-I-converting enzyme (ACE-I; EC 3.4.15.1). The enzyme dipeptidyl peptidase-IV (DPP-IV; EC 3.4.14.5) also plays a role in the development of type-2 diabetes. The inhibition of the renin, ACE-I, and DPP-IV enzymes has therefore become a key therapeutic target for the treatment of hypertension and diabetes. The aim of this study was to assess the bioactivity of different oat (Avena sativa) protein isolates and their ability to inhibit the renin, ACE-I, and DPP-IV enzymes. In silico analysis was carried out to predictthe likelihood of bioactive inhibitory peptides occurring from oat protein hydrolysates following in silico hydrolysis with the proteases papain and ficin. Nine peptides, including FFG, IFFFL, PFL, WWK, WCY, FPIL, CPA, FLLA, and FEPL were subsequently chemically synthesised, and their bioactivities were confirmed using in vitro bioassays. The isolated oat proteins derived from seven different oat varieties were found to inhibit the ACE-I enzyme by between 86.5 ± 10.7% and 96.5 ± 25.8%, renin by between 40.5 ± 21.5% and 70.9 ± 7.6%, and DPP-IV by between 3.7 ± 3.9% and 46.2 ± 28.8%. The activity of the synthesised peptides was also determined.
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Affiliation(s)
- Stephen Bleakley
- Food Biosciences Department, Teagasc Food Research Centre, Ashtown, D15 Dublin, Ireland.
- School of Biological Sciences, College of Sciences and Health and Environment, Sustainability and Health Institute, DIT Kevin Street, D08 NF82 Dublin, Ireland.
| | - Maria Hayes
- Food Biosciences Department, Teagasc Food Research Centre, Ashtown, D15 Dublin, Ireland.
| | - Nora O' Shea
- Food Chemistry and Technology Department, Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork P61 C996, Ireland. Nora.O'
| | - Eimear Gallagher
- Food Quality and Sensory Science Department, Teagasc Food Research Centre, Ashtown, Dublin 15, Ireland.
| | - Tomas Lafarga
- Parc Científic I Tecnològic Agroalimentari de Lleida, Parc de Gardeny, Edifici Fruit Centre, Institut de Recerca, Tecnològia Agroalimentàries (IRTA), 25003 Lleida, Spain.
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241
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Aiello G, Lammi C, Boschin G, Zanoni C, Arnoldi A. Exploration of Potentially Bioactive Peptides Generated from the Enzymatic Hydrolysis of Hempseed Proteins. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:10174-10184. [PMID: 29096438 DOI: 10.1021/acs.jafc.7b03590] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The seed of industrial hemp is an underexploited protein source. In view of a possible use in functional foods, a hempseed protein concentrate was hydrolyzed with pepsin, trypsin, pancreatin, or a mixture of these enzymes. A detailed peptidomic analysis using data-dependent acquisition showed that the numbers of peptides identified ranged from 90 belonging to 33 parent proteins in the peptic hydrolysate to 9 belonging to 6 proteins in the pancreatin digest. The peptic and tryptic hydrolysates resulted to be the most efficient inhibitors of 3-hydroxymethyl-coenzyme A reductase activity when tested on the catalytic domain of the enzyme. Using the open access tools PeptideRanker and BIOPEP, a list of potentially bioactive peptides was generated: the alleged activities included the antioxidant property, the glucose uptake stimulating activity, the inhibition of dipeptidyl peptidase-IV and angiotensin-converting enzyme I.
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Affiliation(s)
- Gilda Aiello
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Carmen Lammi
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Giovanna Boschin
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Chiara Zanoni
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
| | - Anna Arnoldi
- Department of Pharmaceutical Sciences, University of Milan , via Luigi Mangiagalli 25, 20133 Milan, Italy
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242
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Iwaniak A, Darewicz M, Minkiewicz P. Peptides Derived from Foods as Supportive Diet Components in the Prevention of Metabolic Syndrome. Compr Rev Food Sci Food Saf 2017; 17:63-81. [PMID: 33350059 DOI: 10.1111/1541-4337.12321] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 10/02/2017] [Accepted: 10/20/2017] [Indexed: 12/25/2022]
Abstract
Metabolic syndrome (MSyn) includes physiological, biochemical, clinical, and metabolic abnormalities, leading to an increase in health problems like obesity, dyslipidemia, cardiovascular diseases, and diabetes, which contribute to an increase in mortality rate. One of the main factors having a key impact on our health is the food we consume. Thus, scientists work towards the discovery of novel bioactive compounds with therapeutic potential to address MSyn. According to scientific reports, peptides derived from food proteins exhibit bioactivities important for the prevention of MSyn diseases; that is, they regulate blood pressure and glycemia; reduce cholesterol level and body mass; and scavenge free radicals. The aim of this review is to study the potential role of peptides in the prevention of MSyn. Particularly peptides which exhibit the following activities: antihypertensive [angiotensin-converting enzyme (ACE) inhibition (EC 3.4.15.1)], antidiabetic [dipeptidyl peptidase IV (DPP-IV) (EC 3.4.14.5)/α-glucosidase (EC 3.2.1.20)/α-amylase (EC 3.2.1.1) inhibition)], cholesterol level reduction, antioxidative, and obesity prevention, were studied. If possible, special attention is paid in the review to the bioactivities of peptides that were measured in vivo. Some examples of peptides showing dual or multiple action against MSyn targets are presented. Moreover, using the database of bioactive peptide sequences (BIOPEP) we made a list of peptides serving simultaneous functions in counteracting MSyn dysfunctions. Such an approach may simplify the discovery of MSyn preventive peptides, as well as highlight some of them as potent bioactive ingredients that may be incorporated into foods. Moreover, the research strategy involving the in silico and in vitro/in vivo methodologies may be useful in the production of food protein hydrolysates supporting the treatment of MSyn dysfunctions.
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Affiliation(s)
- Anna Iwaniak
- Faculty of Food Science, Chair of Food Biochemistry, Univ. of Warmia and Mazury in Olsztyn, Pl. Cieszynski 1, 10-726 Olsztyn-Kortowo, Poland
| | - Małgorzata Darewicz
- Faculty of Food Science, Chair of Food Biochemistry, Univ. of Warmia and Mazury in Olsztyn, Pl. Cieszynski 1, 10-726 Olsztyn-Kortowo, Poland
| | - Piotr Minkiewicz
- Faculty of Food Science, Chair of Food Biochemistry, Univ. of Warmia and Mazury in Olsztyn, Pl. Cieszynski 1, 10-726 Olsztyn-Kortowo, Poland
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243
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Nielsen SD, Beverly RL, Dallas DC. Peptides Released from Foremilk and Hindmilk Proteins by Breast Milk Proteases Are Highly Similar. Front Nutr 2017; 4:54. [PMID: 29164128 PMCID: PMC5673630 DOI: 10.3389/fnut.2017.00054] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Accepted: 10/19/2017] [Indexed: 11/13/2022] Open
Abstract
Human milk contains active proteases that initiate hydrolysis of milk proteins within the mammary gland. Milk expressed at the beginning of feeding is known as foremilk and that at the end of feeding is known as hindmilk. As hindmilk contains higher fat, vitamins A and E, and higher calories than foremilk, feeding only hindmilk initially and reserving foremilk for later are practiced in some neonatal intensive care units. This study investigated the difference in peptide profiles, predicted milk protease activities, and bioactive peptides between foremilk and hindmilk. Bioactive peptides are short fragments of proteins that influence biological processes. Four mothers pumped 10 mL of their foremilk and 10 mL of their hindmilk into iced containers prepared with antiproteases and the samples were immediately frozen. The peptide profile of each sample was analyzed by liquid chromatography nano-electrospray ionization Orbitrap Fusion tandem mass spectrometry. Peptide abundance (sum of ion intensities) and count (number of unique peptide sequences) in each milk sample were determined from this analysis. The specific enzymes that participated in peptide release were predicted based on the amino acids positioned at each cleavage site. Peptide bioactivity was predicted based on homology to a known functional peptide database and two bioactivity prediction algorithms. Hindmilk contained a higher count of peptides than foremilk. The higher number of unique peptide sequences in hindmilk was related to hydrolysis of β-casein, osteopontin, αs1-casein and mucin-1 via plasmin and elastase cleavage, and possible aminopeptidase and carboxypeptidase activities. Though hindmilk contained a greater number of peptides than foremilk, the overall peptide abundance did not differ and most of the total peptide abundance derived from peptide sequences that were present in both milk types. The presence of higher numbers of predicted bioactive peptides in the hindmilk could indicate that the practice of providing hindmilk rather than foremilk to premature infants could positively impact health outcomes; however, as there are few differences in overall peptide abundance, the overall effect is likely limited.
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Affiliation(s)
- Søren D Nielsen
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, United States
| | - Robert L Beverly
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, United States
| | - David C Dallas
- Nutrition Program, School of Biological and Population Health Sciences, College of Public Health and Human Sciences, Oregon State University, Corvallis, OR, United States
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244
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Challenges in the quantitation of naturally generated bioactive peptides in processed meats. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.04.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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245
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Greening DW, Kapp EA, Simpson RJ. The Peptidome Comes of Age: Mass Spectrometry-Based Characterization of the Circulating Cancer Peptidome. Enzymes 2017; 42:27-64. [PMID: 29054270 DOI: 10.1016/bs.enz.2017.08.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Peptides play a seminal role in most physiological processes acting as neurotransmitters, hormones, antibiotics, and immune regulation. In the context of tumor biology, it is hypothesized that endogenous peptides, hormones, cytokines, growth factors, and aberrant degradation of select protein networks (e.g., enzymatic activities, protein shedding, and extracellular matrix remodeling) are fundamental in mediating cancer progression. Analysis of peptides in biological fluids by mass spectrometry holds promise of providing sensitive and specific diagnostic and prognostic information for cancer and other diseases. The identification of circulating peptides in the context of disease constitutes a hitherto source of new clinical biomarkers. The field of peptidomics can be defined as the identification and comprehensive analysis of physiological and pathological peptides. Like proteomics, peptidomics has been advanced by the development of new separation strategies, analytical detection methods such as mass spectrometry, and bioinformatic technologies. Unlike proteomics, peptidomics is targeted toward identifying endogenous protein and peptide fragments, defining proteolytic enzyme substrate specificity, as well as protease cleavage recognition (degradome). Peptidomics employs "top-down proteomics" strategies where mass spectrometry is applied at the proteoform level to analyze intact proteins and large endogenous peptide fragments. With recent advances in prefractionation workflows for separating peptides, mass spectrometry instrumentation, and informatics, peptidomics is an important field that promises to impact on translational medicine. This review covers the current advances in peptidomics, including top-down and imaging mass spectrometry, comprehensive quantitative peptidome analyses (developments in reproducibility and coverage), peptide prefractionation and enrichment workflows, peptidomic data analyses, and informatic tools. The application of peptidomics in cancer biomarker discovery will be discussed.
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Affiliation(s)
- David W Greening
- La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia.
| | - Eugene A Kapp
- Systems Biology & Personalised Medicine Division, Walter & Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia; Florey Institute of Neuroscience, Parkville, Victoria, Australia; University of Melbourne, Parkville, Victoria, Australia
| | - Richard J Simpson
- La Trobe Institute for Molecular Science (LIMS), La Trobe University, Melbourne, Victoria, Australia.
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246
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Parker BL, Burchfield JG, Clayton D, Geddes TA, Payne RJ, Kiens B, Wojtaszewski JFP, Richter EA, James DE. Multiplexed Temporal Quantification of the Exercise-regulated Plasma Peptidome. Mol Cell Proteomics 2017; 16:2055-2068. [PMID: 28982716 DOI: 10.1074/mcp.ra117.000020] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Indexed: 01/06/2023] Open
Abstract
Exercise is extremely beneficial to whole body health reducing the risk of a number of chronic human diseases. Some of these physiological benefits appear to be mediated via the secretion of peptide/protein hormones into the blood stream. The plasma peptidome contains the entire complement of low molecular weight endogenous peptides derived from secretion, protease activity and PTMs, and is a rich source of hormones. In the current study we have quantified the effects of intense exercise on the plasma peptidome to identify novel exercise regulated secretory factors in humans. We developed an optimized 2D-LC-MS/MS method and used multiple fragmentation methods including HCD and EThcD to analyze endogenous peptides. This resulted in quantification of 5,548 unique peptides during a time course of exercise and recovery. The plasma peptidome underwent dynamic and large changes during exercise on a time-scale of minutes with many rapidly reversible following exercise cessation. Among acutely regulated peptides, many were known hormones including insulin, glucagon, ghrelin, bradykinin, cholecystokinin and secretogranins validating the method. Prediction of bioactive peptides regulated with exercise identified C-terminal peptides from Transgelins, which were increased in plasma during exercise. In vitro experiments using synthetic peptides identified a role for transgelin peptides on the regulation of cell-cycle, extracellular matrix remodeling and cell migration. We investigated the effects of exercise on the regulation of PTMs and proteolytic processing by building a site-specific network of protease/substrate activity. Collectively, our deep peptidomic analysis of plasma revealed that exercise rapidly modulates the circulation of hundreds of bioactive peptides through a network of proteases and PTMs. These findings illustrate that peptidomics is an ideal method for quantifying changes in circulating factors on a global scale in response to physiological perturbations such as exercise. This will likely be a key method for pinpointing exercise regulated factors that generate health benefits.
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Affiliation(s)
- Benjamin L Parker
- From the ‡Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
| | - James G Burchfield
- From the ‡Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
| | - Daniel Clayton
- §School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Thomas A Geddes
- From the ‡Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia
| | - Richard J Payne
- §School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| | - Bente Kiens
- ¶Department of Nutrition, Exercise and Sports, August Krogh Centre, University of Copenhagen, Copenhagen 2100, Denmark
| | - Jørgen F P Wojtaszewski
- ¶Department of Nutrition, Exercise and Sports, August Krogh Centre, University of Copenhagen, Copenhagen 2100, Denmark
| | - Erik A Richter
- ¶Department of Nutrition, Exercise and Sports, August Krogh Centre, University of Copenhagen, Copenhagen 2100, Denmark
| | - David E James
- From the ‡Charles Perkins Centre, School of Life and Environmental Sciences, University of Sydney, Sydney, NSW 2006, Australia; .,‖School of Medicine, University of Sydney, Sydney, NSW 2006, Australia
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247
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Zhang P, Roytrakul S, Sutheerawattananonda M. Production and purification of glucosamine and angiotensin-I converting enzyme (ACE) inhibitory peptides from mushroom hydrolysates. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.06.049] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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248
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Joubran Y, Moscovici A, Portmann R, Lesmes U. Implications of the Maillard reaction on bovine alpha-lactalbumin and its proteolysis during in vitro infant digestion. Food Funct 2017; 8:2295-2308. [PMID: 28589996 DOI: 10.1039/c7fo00588a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This study investigated the functionality and digestibility of Maillard reaction products (MRPs) of alpha-lactalbumin (α-la), a major whey protein and component of infant formulas. The impact of different carbohydrates (glucose, galactose or galacto-oligosaccharides (GOS)) and heating duration was studied. SDS-PAGE, UV and color measurements monitored reaction extent, which varied between carbohydrates whereby galactose reacted more readily than glucose. Surface hydrophobicity and antioxidant capacity were found to be significantly (p < 0.05) higher following Maillard conjugation, with GOS-based MRPs elevating antioxidant capacity ∼50-fold compared to α-la. In addition, the digestive proteolysis of MRPs was evaluated using an infant in vitro gastro-duodenal model. SDS-PAGE analyses of digesta revealed Maillard conjugation generally increased α-la's susceptibility to proteolysis. Interestingly, GOS-based MRPs presented an optimization challenge, since heating for 12 h delayed proteolysis, while extended heating resulted in the highest susceptibility to proteolysis. Proteomic analyses further demonstrated the differences in enzymatic cleavage patterns and helped identify bioactive peptides rendered bioaccessible during the digestion of α-la or its MRPs. Bioinformatic mining of the proteomic data using PeptideRanker also gave rise to two potentially novel bioactive peptides, FQINNKIW and GINYWLAHKALCS. Finally, antioxidant capacity of luminal contents, measured by DPPH, revealed Maillard conjugation increased the antioxidant capacity of both gastric and duodenal digesta. Overall, this work draws a link between the Maillard reaction, digestive proteolysis and the bioaccessibility of bioactive peptides and antioxidant species in the infant alimentary canal. This could help rationally process infant formulas towards improved nutritional and extra-nutritional benefits.
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Affiliation(s)
- Yousef Joubran
- Department of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Haifa 32000, Israel.
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249
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Mirzapour M, Rezaei K, Sentandreu MA. Identification of Potent ACE Inhibitory Peptides from Wild Almond Proteins. J Food Sci 2017; 82:2421-2431. [PMID: 28833139 DOI: 10.1111/1750-3841.13840] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 07/06/2017] [Accepted: 07/14/2017] [Indexed: 11/29/2022]
Abstract
In this study, the production, fractionation, purification and identification of ACE (angiotensin-I-converting enzyme) inhibitory peptides from wild almond (Amygdalus scoparia) proteins were investigated. Wild almond proteins were hydrolyzed using 5 different enzymes (pepsin, trypsin, chymotrypsin, alcalase and flavourzyme) and assayed for their ACE inhibitory activities. The degree of ACE inhibiting activity obtained after hydrolysis was found to be in the following order: alcalase > chymotrypsin > trypsin/pepsin > flavourzyme. The hydrolysates obtained from alcalase (IC50 = 0.8 mg/mL) were fractionated by sequential ultrafiltration at 10 and 3 kDa cutoff values and the most active fraction (<3 kDa) was further separated using reversed phase high-performance liquid chromatography (RP-HPLC). Peptide sequence identifications were carried out on highly potential fractions obtained from RP-HPLC by means of liquid chromatography coupled to electrospray ionization and tandem mass spectrometry (LC-ESI-MS/MS). Sequencing of ACE inhibitory peptides present in the fraction 26 of RP-HPLC resulted in the identification of 3 peptide sequences (VVNE, VVTR, and VVGVD) not reported previously in the literature. Sequence identification of fractions 40 and 42 from RP-HPLC, which showed the highest ACE inhibitory activities (84.1% and 86.9%, respectively), resulted in the identification of more than 40 potential ACE inhibitory sequences. The results indicate that wild almond protein is a rich source of potential antihypertensive peptides and can be suggested for applications in functional foods and drinks with respect to hindrance and mitigation of hypertension after in vivo assessment. PRACTICAL APPLICATION This study has shown the potential of wild almond proteins as good sources for producing ACE-inhibitory active peptides. According to this finding, peptides with higher ACE inhibitory activities could be released during the gastrointestinal digestion and contribute to the health- promoting activities of this natural protein source.
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Affiliation(s)
- Mozhgan Mirzapour
- Dept. of Food Science, Engineering and Technology, Univ. of Tehran, Karaj, 31587-77871, Iran
| | - Karamatollah Rezaei
- Dept. of Food Science, Engineering and Technology, Univ. of Tehran, Karaj, 31587-77871, Iran.,Center of Excellence for Application of Modern Technologies for Producing Functional Foods and Drinks, Univ. of Tehran, Karaj, 31587-77871, Iran
| | - Miguel Angel Sentandreu
- Inst. de Agroquímica y Tecnología de Alimentos (CSIC), Avd. Agustín Escardino 7, 46980, Paterna, Valencia, Spain
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250
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Pal GK, Suresh P. Physico-chemical characteristics and fibril-forming capacity of carp swim bladder collagens and exploration of their potential bioactive peptides by in silico approaches. Int J Biol Macromol 2017; 101:304-313. [DOI: 10.1016/j.ijbiomac.2017.03.061] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/06/2017] [Accepted: 03/10/2017] [Indexed: 11/15/2022]
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