1
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Cho HS, Park JH, Olawuyi IF, Nam JO, Lee WY. Optimization of ultrasound-assisted enzymatic hydrolysis Zophobas morio protein and its protective effects against H 2O 2-induced oxidative stress in RAW264.7 cells. Int J Biol Macromol 2025; 298:140111. [PMID: 39842604 DOI: 10.1016/j.ijbiomac.2025.140111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2024] [Revised: 01/13/2025] [Accepted: 01/18/2025] [Indexed: 01/24/2025]
Abstract
Zophobas morio protein (ZMP) is a promising protein resource with notable biological properties, and its hydrolysis could unlock enhanced bioactivities. This study investigated ultrasound-assisted enzymatic hydrolysis (UAEH) of ZMP using different enzymes (Alcalase, Neutrase, and Protamex) to determine its effect on the degree of hydrolysis (DH) compared to enzymatic hydrolysis (EH). UAEH showed greater hydrolysis efficiency than EH, with Alcalase exhibiting the highest DH. Response surface methodology (RSM) was applied to optimize UAEH conditions for Zophobas morio protein hydrolysate (ZMPH). Optimal conditions for producing ZMPH with the maximum DH were a substrate concentration of 3.52 % (w/v), enzyme to substrate ratio of 7.64 % (v/v), and pH of 8.35. Under the optimal condition, the maximum DH was 25.03 %. In addition, significant structural changes in the optimized ZMPH compared to ZMP were identified, showing decreased α-helix and β-sheet content, with increased β-turn and unordered coil. Moreover, the optimized ZMPH demonstrated significantly improved ABTS antioxidant activity and attenuated H2O2-induced cell death in RAW264.7 cells compared to ZMP, which was attributed to better mitigation of ROS production. These findings provide an effective enzymatic hydrolysis method for producing ZMPH with significant antioxidant activity, demonstrating the potential of ultrasound-assisted hydrolysis in enhancing the bioactivity of insect proteins.
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Affiliation(s)
- Ha-Seong Cho
- School of Food Science and Technology, Kyungpook National University, Daegu 702-701, Republic of Korea.
| | - Ju-Hwi Park
- School of Food Science and Technology, Kyungpook National University, Daegu 702-701, Republic of Korea; Research Institute of Tailored Food Technology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Ibukunoluwa Fola Olawuyi
- School of Food Science and Technology, Kyungpook National University, Daegu 702-701, Republic of Korea; Research Institute of Tailored Food Technology, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Ju-Ock Nam
- School of Food Science and Technology, Kyungpook National University, Daegu 702-701, Republic of Korea; Research Institute of Tailored Food Technology, Kyungpook National University, Daegu 41566, Republic of Korea.
| | - Won-Young Lee
- School of Food Science and Technology, Kyungpook National University, Daegu 702-701, Republic of Korea; Research Institute of Tailored Food Technology, Kyungpook National University, Daegu 41566, Republic of Korea.
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2
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Chen G, Ge X, Sun Y, Sui W, Jin Y, Geng J, Zhang M, Wu T. Identification of two novel α-amylase inhibitory activity peptide from Russian sea cucumber body wallprotein hydrolysate. Int J Biol Macromol 2025; 295:139499. [PMID: 39756766 DOI: 10.1016/j.ijbiomac.2025.139499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2024] [Revised: 12/27/2024] [Accepted: 01/02/2025] [Indexed: 01/07/2025]
Abstract
This study aimed to identify novel α-amylase inhibitory peptides from Russian sea cucumbers and elucidate their inhibitory mechanisms. Among the 52 identified sea cucumber peptide (SCP), two peptides with potential α-amylase inhibitory activity, FPSPPLVA (SCP1) and GPPMPPPPLP (SCP2), were selected from the sequences researched. The results showed that both SCP1 and SCP2 exhibited α-amylase inhibitory activity with IC50 of 0.92 ± 0.03 mg/mL (SCP1) and 2.01 ± 0.02 mg/mL (SCP2), respectively. Molecular docking studies revealed the potential interaction mechanism between these inhibitors and α-amylase. Two peptides interacted with Gln63, Tyr151, Thr163, Lys200, His201, His305, and Ala307 within the α-amylase active site. The formation of hydrogen bonds and hydrophobic interactions between the inhibitors and α-amylase impedes the formation of enzyme-substrate complexes and subsequent glycosylation. Lineweaver-Burk plot indicated that both SCP1 and SCP2 act as reversible mixed inhibitors of α-amylase. Furthermore, the results of infrared and circular dichroism spectroscopy confirmed the formation of non-covalent binding complexes between SCP and amylase, leading to alterations in the secondary structure of the enzyme.
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Affiliation(s)
- GuoXing Chen
- State Key Laboratory of Food Nutrition and Safety, Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Xiaofan Ge
- State Key Laboratory of Food Nutrition and Safety, Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Yuting Sun
- State Key Laboratory of Food Nutrition and Safety, Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Wenjie Sui
- State Key Laboratory of Food Nutrition and Safety, Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Yan Jin
- State Key Laboratory of Food Nutrition and Safety, Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jieting Geng
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology, Konan 4-5-7, Minato-ku, Tokyo 108-8477, Japan
| | - Min Zhang
- Tianjin Agricultural University, Tianjin 300384, China.
| | - Tao Wu
- State Key Laboratory of Food Nutrition and Safety, Engineering Research Center of Food Biotechnology, Ministry of Education, Tianjin University of Science & Technology, Tianjin 300457, China.
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3
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de Matos FM, Rasera GB, de Castro RJS. Multifunctional properties of peptides derived from black cricket (Gryllus assimilis) and effects of in vitro digestion simulation on their bioactivities. Food Res Int 2024; 196:115134. [PMID: 39614589 DOI: 10.1016/j.foodres.2024.115134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 09/17/2024] [Accepted: 09/20/2024] [Indexed: 12/01/2024]
Abstract
Insects are a rich source of proteins and are produced in systems that have lower environmental impact. As an alternative protein source, they can be consumed directly or used as an ingredient in other formulations. Recently, there has been growing interest in utilizing insect proteins as a substrate to obtain bioactive peptides as well as in investigating the maintenance of their biological properties under physiological conditions. This study aimed to evaluate the impact of simulated digestion on the bioactive properties of protein hydrolysates from black crickets (Gryllus assimilis). Following simulated digestion of the hydrolysate obtained through the application of Flavourzyme, the scavenging activities of ABTS and DPPH radicals, and ferric reducing antioxidant power (FRAP) increased by approximately 17 %, 246 %, and 173 %, respectively. For the hydrolysate obtained using the binary combination of Flavourzyme/Neutrase, the inhibitory activities of α-amylase and α-glucosidase after digestion were 47.87 % and 12.73 %, respectively, not significantly (p > 0.05) different from non-digested hydrolysates. The angiotensin-converting enzyme (ACE) inhibitory activity of the sample hydrolyzed with Flavourzyme/Alcalase proteases was 42.22 %, but this property was completely lost after in vitro digestion. Untargeted proteomic analysis allowed the identification of 22 peptides in the <3 kDa fraction of the digested black cricket protein. The LPPLP sequence was considered potentially bioactive for all activities tested in silico.
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Affiliation(s)
- Francielle Miranda de Matos
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Rua Monteiro Lobato, 80, Campinas, SP, Brazil.
| | - Gabriela Boscariol Rasera
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Rua Monteiro Lobato, 80, Campinas, SP, Brazil
| | - Ruann Janser Soares de Castro
- Department of Food Science and Nutrition, School of Food Engineering, University of Campinas, Rua Monteiro Lobato, 80, Campinas, SP, Brazil.
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4
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Teixeira CSS, Carriço-Sá B, Villa C, Costa J, Mafra I, Ferreira IMPLVO, Faria MA, Tavares TG. Uncovering the Potential Somatic Angiotensin-Converting Enzyme (sACE) Inhibitory Capacity of Peptides from Acheta domesticus: Insights from In Vitro Gastrointestinal Digestion. Foods 2024; 13:3462. [PMID: 39517245 PMCID: PMC11544891 DOI: 10.3390/foods13213462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2024] [Revised: 10/25/2024] [Accepted: 10/28/2024] [Indexed: 11/16/2024] Open
Abstract
Entomophagy is being proposed as a sustainable and nutritious alternative protein source. Additionally, insect consumption is also associated with some health benefits mediated by bioactive compounds produced during gastrointestinal (GI) digestion. The antihypertensive property resulting from the inhibition of the somatic angiotensin-converting enzyme (sACE) by small peptides is one of the most common bioactivities related to insect consumption. This study aimed to investigate the potential sACE-inhibitory capacity of six peptides (AVQPCF, CAIAW, IIIGW, QIVW, PIVCF, and DVW), previously identified by the in silico GI digestion of Acheta domesticus proteins, validate their formation after in vitro GI digestion of A. domesticus by LC-MS/MS, and assess the bioactivity of the bioaccessible digesta. The results showed that the IC50 values of AVQPCF, PIVCF, and CAIAW on sACE were 3.69 ± 0.25, 4.63 ± 0.16, and 6.55 ± 0.52 μM, respectively. The obtained digesta demonstrated a sACE-inhibitory capacity of 77.1 ± 11.8 µg protein/mL extract (IC50). This is the first report of the sACE-inhibitory capacity attributed to whole A. domesticus subjected to GI digestion without any pre-treatment or protein concentration. This evidence highlights the potential antihypertensive effect of both the digesta and the identified peptides.
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Affiliation(s)
- Carla S. S. Teixeira
- REQUIMTE-LAQV, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (B.C.-S.); (C.V.); (J.C.); (I.M.); (I.M.P.L.V.O.F.); (M.A.F.)
| | - Bruno Carriço-Sá
- REQUIMTE-LAQV, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (B.C.-S.); (C.V.); (J.C.); (I.M.); (I.M.P.L.V.O.F.); (M.A.F.)
| | - Caterina Villa
- REQUIMTE-LAQV, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (B.C.-S.); (C.V.); (J.C.); (I.M.); (I.M.P.L.V.O.F.); (M.A.F.)
| | - Joana Costa
- REQUIMTE-LAQV, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (B.C.-S.); (C.V.); (J.C.); (I.M.); (I.M.P.L.V.O.F.); (M.A.F.)
| | - Isabel Mafra
- REQUIMTE-LAQV, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (B.C.-S.); (C.V.); (J.C.); (I.M.); (I.M.P.L.V.O.F.); (M.A.F.)
| | - Isabel M. P. L. V. O. Ferreira
- REQUIMTE-LAQV, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (B.C.-S.); (C.V.); (J.C.); (I.M.); (I.M.P.L.V.O.F.); (M.A.F.)
| | - Miguel A. Faria
- REQUIMTE-LAQV, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (B.C.-S.); (C.V.); (J.C.); (I.M.); (I.M.P.L.V.O.F.); (M.A.F.)
| | - Tânia G. Tavares
- LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
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Chotphruethipong L, Senphan T, Sigh A, Hutamekalin P, Nuthong P, Benjakul S. Characteristics and Bioactivities of Protein Hydrolysate from Cricket ( Acheta domesticus) Powder Defatted Using Ethanol with Aid of Vacuum Impregnation. Foods 2024; 13:3250. [PMID: 39456312 PMCID: PMC11508068 DOI: 10.3390/foods13203250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2024] [Revised: 10/10/2024] [Accepted: 10/11/2024] [Indexed: 10/28/2024] Open
Abstract
Cricket is a potential proteinaceous source used for protein hydrolysate (PH) preparation, having several biological activities. Nevertheless, cricket has high lipid contents, which are susceptible to oxidation during PH preparation. Thus, ethanol was used together with vacuum impregnation (VI) to enhance defatting efficacy before PH preparation. Also, bioavailability of the digest of PH after gastrointestinal tract (GIT) digestion via the Caco-2 monolayer was assessed. Cricket powder was defatted using ethanol for 1-4 h. Lipid contents were decreased with enhancing time until 2 h. Additionally, the defatting efficacy was augmented when ethanol combined with VI at 4 cycles for 2 h (VI-E-2) was implemented. Lowered mono- and polyunsaturated fatty acid contents were also observed in the VI-E-2 sample. The VI-E-2 sample was used to prepare PH using Alcalase and Flavourzyme (0.2-0.4 units/g dry sample). PH prepared by Alcalase hydrolysis at 0.2 units/g dry sample (A-0.2) showed the higher ABTS radical-scavenging activity and FRAP, compared to that prepared by Flavourzyme hydrolysis (p < 0.05). Thus, the A-0.2 sample was selected for digestion via the GIT system. The obtained digest (500-1000 μg/mL) had bioavailability of peptides, depending on the levels used. Therefore, PH from defatted cricket powder could be a promising ingredient for food applications.
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Affiliation(s)
- Lalita Chotphruethipong
- Department of Food Science, Faculty of Science, Burapha University, Mueang Chonburi, Chonburi 20131, Thailand
| | - Theeraphol Senphan
- Program in Food Science and Technology, Faculty of Engineering and Agro-Industry, Maejo University, Sansai, Chiangmai 50290, Thailand;
| | - Avtar Sigh
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand; (A.S.); (S.B.)
| | - Pilaiwanwadee Hutamekalin
- Division of Health and Applied Sciences, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand;
| | - Pornpot Nuthong
- Office of Scientific Instrument and Testing, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand;
| | - Soottawat Benjakul
- International Center of Excellence in Seafood Science and Innovation, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand; (A.S.); (S.B.)
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6
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Summart R, Imsoonthornruksa S, Yongsawatdigul J, Ketudat-Cairns M, Udomsil N. Characterization and molecular docking of tetrapeptides with cellular antioxidant and ACE inhibitory properties from cricket ( Acheta domesticus) protein hydrolysate. Heliyon 2024; 10:e35156. [PMID: 39166016 PMCID: PMC11333913 DOI: 10.1016/j.heliyon.2024.e35156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 07/23/2024] [Accepted: 07/23/2024] [Indexed: 08/22/2024] Open
Abstract
Wide-ranging bioactivities of enzymatically digested insect protein to produce peptides have been targeted for functional food development. In this study, fractionated peptides obtained from cricket (Acheta domesticus) protein hydrolysate by alcalase digestion were identified and evaluated for their bioactivities. Peptide fractions F44, F45, and F46, isolated through size exclusion chromatography, demonstrated strong cytoprotective effects on SH-SY5Y and HepG2 cells exposed to H2O2. This was evidenced by a 2-fold decrease in reactive oxygen species (ROS) accumulation in the cells and a 3-fold upregulation of genes encoding antioxidant enzymes. The F45 peptide fractions also showed chemical antioxidant activities ranging from approximately 290 to 393 mg trolox/g peptide, measured by DPPH, ABTS, and FRAP assays. Furthermore, F45 demonstrated the highest angiotensin-converting enzyme I (ACE) inhibitory activity, 57.93 %. F45 induced higher levels of Nrf2, SOD1, SOD2, CAT, GSR, and GPx4 gene expression in SH-SY5Y and HepG2 cells compared to cells treated with H2O2 and no peptides (p < 0.05). Cells treated with H2O2 and F45 exhibited significantly increased antioxidant enzyme activity, including SOD, CAT, GSR, and GPx (p < 0.05). The F45B fraction from F45 was sequenced to obtain FVEG and FYDQ tetrapeptides. Molecular docking analysis revealed their high binding affinity to cellular antioxidant enzymes (SOD, CAT, GSR, GPx1, and GPx4), an antioxidant-related protein (Keap1), and ACE. These results suggest that the novel tetrapeptides from Acheta domesticus demonstrate important biological activities, establishing them as significant cellular antioxidant activities and a potential source of antihypertensive peptides.
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Affiliation(s)
- Ratasark Summart
- Division of Food Technology, Mahidol University Kanchanaburi Campus, Kanchanaburi, 71150, Thailand
| | - Sumeth Imsoonthornruksa
- Center for Biomolecular Structure Function and Application, School of Biotechnology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Jirawat Yongsawatdigul
- School of Food Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Mariena Ketudat-Cairns
- Center for Biomolecular Structure Function and Application, School of Biotechnology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Natteewan Udomsil
- Division of Food Technology, Mahidol University Kanchanaburi Campus, Kanchanaburi, 71150, Thailand
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7
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Li W, Yang S, An J, Wang M, Li H, Liu X. Statistical Characterization of Food-Derived α-Amylase Inhibitory Peptides: Computer Simulation and Partial Least Squares Regression Analysis. Molecules 2024; 29:395. [PMID: 38257308 PMCID: PMC10819330 DOI: 10.3390/molecules29020395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 01/04/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
α-Amylase inhibitory peptides are used to treat diabetes, but few studies have statistically characterized their interaction with α-amylase. This study performed the molecular docking of α-amylase with inhibitory peptides from published papers. The key sites, side chain chargeability, and hydrogen bond distribution characteristics were analyzed. Molecular dynamics simulated the role of key sites in complex stability. Moreover, partial least squares regression (PLSR) was used to analyze the contribution of different amino acids in the peptides to inhibition. The results showed that, for the α-amylase molecule, His201 and Gln63, with the highest interaction numbers (INs, 15, 15) and hydrogen bond values (HBVs, 11.50, 10.33), are the key sites on α-amylase, and amino acids with positively charged side chains were important for inhibitory activity. For the inhibitory peptides, Asp and Arg had the highest HBVs, and amino acids with charged side chains were more likely to form hydrogen bonds and exert inhibitory activity. In molecular dynamics simulations, peptides involving key binding sites formed more stable complexes with α-amylase than α-amylase alone, suggesting enhanced inhibitory effects. Further, PLSR results showed that amino acids close to the N-terminus of the inhibitory peptide, located in the third and fifth positions, were significantly correlated with its inhibitory activity. In conclusion, this study provides a new approach to developing and screening α-amylase inhibitors.
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Affiliation(s)
- Wenhui Li
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China; (W.L.); (S.Y.); (J.A.); (M.W.); (X.L.)
| | - Shangci Yang
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China; (W.L.); (S.Y.); (J.A.); (M.W.); (X.L.)
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiulong An
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China; (W.L.); (S.Y.); (J.A.); (M.W.); (X.L.)
| | - Min Wang
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China; (W.L.); (S.Y.); (J.A.); (M.W.); (X.L.)
| | - He Li
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China; (W.L.); (S.Y.); (J.A.); (M.W.); (X.L.)
| | - Xinqi Liu
- China Food Flavor and Nutrition Health Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China; (W.L.); (S.Y.); (J.A.); (M.W.); (X.L.)
- National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University (BTBU), Beijing 100048, China
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8
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Deng F, Liang Y, Lei Y, Xiong S, Rong J, Hu Y. Development and Identification of Novel α-Glucosidase Inhibitory Peptides from Mulberry Leaves. Foods 2023; 12:3917. [PMID: 37959036 PMCID: PMC10649714 DOI: 10.3390/foods12213917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/15/2023] [Accepted: 10/23/2023] [Indexed: 11/15/2023] Open
Abstract
The mulberry leaf is a botanical resource that possesses a substantial quantity of protein. In this study, alcalase hydrolysis conditions of mulberry leaf protein were optimized using the response surface method. The results showed that the optimum conditions were as follows: substrate protein concentration was 0.5% (w/v), enzymatic hydrolysis temperature was 53.0 °C, enzymatic hydrolysis time was 4.7 h, enzyme amount was 17,800 U/g, and pH was 10.5. Then mulberry leaf peptides were separated by ultrafiltration according to molecular weight. Peptides (<3 kDa) were screened and subsequently identified using LC-MS/MS after the evaluation of α-glucosidase inhibition across various fractions. Three novel potential bioactive peptides RWPFFAFM (1101.32 Da), AAGRLPGY (803.91 Da), and VVRDFHNA (957.04 Da) with the lowest average docking energy were screened for molecular dynamics simulation to examine their binding stability with enzymes in a 37 °C simulated human environment. Finally, they were prepared by solid phase synthesis for in vitro verification. The former two peptides exhibited better IC50 values (1.299 mM and 1.319 mM, respectively). These results suggest that the α-glucosidase inhibitory peptides from mulberry leaf protein are potential functional foods or drugs for diabetes treatment, but further in vivo studies are needed to identify the bioavailability and toxicity.
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Affiliation(s)
- Fanghui Deng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yihao Liang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yuelei Lei
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shanbai Xiong
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianhua Rong
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Yang Hu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Bioactive Peptide Technology Hubei Engineering Research Center, Jingzhou 434000, China
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9
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Ma Z, Mondor M, Goycoolea Valencia F, Hernández-Álvarez AJ. Current state of insect proteins: extraction technologies, bioactive peptides and allergenicity of edible insect proteins. Food Funct 2023; 14:8129-8156. [PMID: 37656123 DOI: 10.1039/d3fo02865h] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
This review aims to provide an updated overview of edible insect proteins and the bioactivity of insect-derived peptides. The essential amino acid content of edible insects is compared with well-known protein sources to demonstrate that edible insects have the potential to cover the protein quality requirements for different groups of the population. Then the current methodologies for insect protein extraction are summarized including a comparison of the protein extraction yield and the final protein content of the resulting products for each method. Furthermore, in order to improve our understanding of insect proteins, their functional properties (such as solubility, foaming capacity, emulsifying, gelation, water holding capacity and oil holding capacity) are discussed. Bioactive peptides can be released according to various enzymatic hydrolysis protocols. In this context, the bioactive properties of insect peptides (antihypertensive, antidiabetic, antioxidant and anti-inflammatory properties) have been discussed. However, the allergens present in insect proteins are still a major concern and an unsolved issue for insect-based product consumption; thus, an analysis of cross reactivity and the different methods available to reduce allergenicity are proposed. Diverse studies of insect protein hydrolysates/peptides have been ultimately promoting the utilization of insect proteins for future perspectives and the emerging processing technologies to enhance the wider utilization of insect proteins for different purposes.
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Affiliation(s)
- Zidan Ma
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK.
| | - Martin Mondor
- Saint-Hyacinthe Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Hyacinthe, QC, J2S 8E3, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, QC, G1V 0A6, Canada
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10
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Song P, Zhang X, Wang S, Xu W, Wang F, Fu R, Wei F. Microbial proteases and their applications. Front Microbiol 2023; 14:1236368. [PMID: 37779686 PMCID: PMC10537240 DOI: 10.3389/fmicb.2023.1236368] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 08/30/2023] [Indexed: 10/03/2023] Open
Abstract
Proteases (proteinases or peptidases) are a class of hydrolases that cleave peptide chains in proteins. Endopeptidases are a type of protease that hydrolyze the internal peptide bonds of proteins, forming shorter peptides; exopeptidases hydrolyze the terminal peptide bonds from the C-terminal or N-terminal, forming free amino acids. Microbial proteases are a popular instrument in many industrial applications. In this review, the classification, detection, identification, and sources of microbial proteases are systematically introduced, as well as their applications in food, detergents, waste treatment, and biotechnology processes in the industry fields. In addition, recent studies on techniques used to express heterologous microbial proteases are summarized to describe the process of studying proteases. Finally, future developmental trends for microbial proteases are discussed.
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Affiliation(s)
- Peng Song
- College of Life Sciences, Liaocheng University, Liaocheng, China
- Shandong Aobo Biotech Co. Ltd., Liaocheng, China
- Jiangxi Zymerck Biotech Co. Ltd., Nanchang, China
| | - Xue Zhang
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Shuhua Wang
- Shandong Aobo Biotech Co. Ltd., Liaocheng, China
| | - Wei Xu
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Fei Wang
- College of Life Sciences, Liaocheng University, Liaocheng, China
| | - Rongzhao Fu
- Jiangxi Zymerck Biotech Co. Ltd., Nanchang, China
| | - Feng Wei
- College of Life Sciences, Liaocheng University, Liaocheng, China
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11
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Teixeira CSS, Villa C, Sousa SF, Costa J, Ferreira IMPLVO, Mafra I. An in silico approach to unveil peptides from Acheta domesticus with potential bioactivity against hypertension, diabetes, cardiac and pulmonary fibrosis. Food Res Int 2023; 169:112847. [PMID: 37254421 DOI: 10.1016/j.foodres.2023.112847] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/30/2023] [Accepted: 04/14/2023] [Indexed: 06/01/2023]
Abstract
Entomophagy is a sustainable alternative source of proteins for human nutrition. Acheta domesticus is one of the three insect species that complies with the European Union Regulation on novel foods, but to date, there are no reports on their potential bioactive peptides. In this study, an in silico approach was applied to simulate the gastrointestinal (GI) digestion of six A. domesticus proteins and identify new peptides with potential anti-hypertensive and/or anti-diabetic properties, resulting from their capability to inhibit the somatic Angiotensin-I converting enzyme (sACE) and/or dipeptidyl peptidase 4 (DPP-4), respectively. A molecular docking protocol was applied to evaluate the binding interactions between the 43 peptides ranked with high probability of being bioactive and three drug targets: DPP-4 and two catalytic domains (N- and C-) of sACE. Five peptides (AVQPCF, CAIAW, IIIGW, DATW and QIVW) showed high docking scores for both enzymes, suggesting their potential to inhibit the DPP-4 and both catalytic domains of sACE, thus possessing multifunctional bioactive properties. Two peptides (PIVCF and DVW) showed higher docking scores for the N-domain of sACE, indicating a potential action as selective inhibitors and consequently with anti-cardiac and pulmonary fibrosis bioactivities. This is the first study identifying peptides originated from the simulated GI digestion of A. domesticus with potential activities against hypertension, diabetes, cardiac and pulmonary fibrosis.
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Affiliation(s)
- Carla S S Teixeira
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal.
| | - Caterina Villa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Sérgio F Sousa
- Associate Laboratory i4HB - Institute for Health and Bioeconomy, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal; UCIBIO - Applied Molecular Biosciences Unit, BioSIM - Department of Biomedicine, Faculty of Medicine, University of Porto, 4200-319 Porto, Portugal
| | - Joana Costa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Isabel M P L V O Ferreira
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
| | - Isabel Mafra
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
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12
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Zhang Y, Chen Y, Liu X, Wang W, Wang J, Li X, Sun S. Preparation and Identification of Peptides with α-Glucosidase Inhibitory Activity from Shiitake Mushroom ( Lentinus edodes) Protein. Foods 2023; 12:2534. [PMID: 37444272 DOI: 10.3390/foods12132534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
The shiitake mushroom is the most commonly cultivated edible mushroom in the world, and is rich in protein. This study aims to obtain the peptides with α-glucosidase inhibition activity from shiitake mushroom protein hydrolysate. The conditions of enzymatic hydrolysis of shiitake mushroom protein were optimized by response surface test. The results showed that the optimal conditions were as follows: the E/S was 3390 U/g, the solid-liquid ratio was 1:20, the hydrolysis temperature and time were 46 °C and 3.4 h, respectively, and the pH was 7. The active peptides were separated by gel filtration and identified by LC-MS/MS analysis and virtual screening. The results indicated that fourteen peptides were identified by LC-MS/MS. Among them, four new peptides (EGEPKLP, KDDLRSP, TPELKL, and LDYGKL) with the higher docking score were selected and chemically synthesized to verify their inhibition activity. The IC50 values of EGEPKLP, KDDLRSP, TPELKL, and LDYGKL for α-glucosidase inhibition activity ranged from 452 ± 36 μmol/L to 696 ± 39 μmol/L. The molecular docking results showed that the hydrogen bond and arene-cation bond were the two major interactions between four peptides and 2QMJ. The hydrogen bonds were crucial to the inhibition activity of α-glucosidase. The results indicate the potential of using the peptides from shiitake mushroom protein as functional food with α-glucosidase inhibition activity.
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Affiliation(s)
- Yu Zhang
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Key Laboratory of Agricultural Product Information Traceability, Ministry of Agriculture and Rural Affairs of China, Hangzhou 310021, China
- Zhejiang Provincial Key Laboratory of Food Safety, Hangzhou 310021, China
| | - Yu Chen
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Collage of Agriculture and Animal Husbandry, Qinghai University, Xining 810016, China
| | - Xinyang Liu
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- College of Wine, North West Agriculture and Forestry University, Xi'an 712199, China
| | - Wei Wang
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310012, China
| | - Junhong Wang
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Xue Li
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
- Key Laboratory of Agricultural Product Information Traceability, Ministry of Agriculture and Rural Affairs of China, Hangzhou 310021, China
- Zhejiang Provincial Key Laboratory of Food Safety, Hangzhou 310021, China
| | - Suling Sun
- Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
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13
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Teixeira CSS, Villa C, Costa J, Ferreira IMPLVO, Mafra I. Edible Insects as a Novel Source of Bioactive Peptides: A Systematic Review. Foods 2023; 12:2026. [PMID: 37238844 PMCID: PMC10216942 DOI: 10.3390/foods12102026] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/13/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023] Open
Abstract
The production of food and feed to meet the needs of the growing world's population will soon become a serious challenge. In search for sustainable solutions, entomophagy is being proposed as an alternative source of proteins, with economic and environmental advantages when compared to meat. Edible insects are not only a valuable source of important nutrients, but their gastrointestinal digestion also originates small peptides with important bioactive properties. The present work intends to provide an exhaustive systematic review on research articles reporting bioactive peptides identified from edible insects, as demonstrated by in silico, in vitro, and/or in vivo assays. A total of 36 studies were identified following the PRISMA methodology, gathering 211 potentially bioactive peptides with antioxidant, antihypertensive, antidiabetic, antiobesity, anti-inflammatory, hypocholesterolemia, antimicrobial, anti-severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2), antithrombotic, and immunomodulatory properties, originated from the hydrolysates of 12 different insect species. From these candidates, the bioactive properties of 62 peptides were characterized in vitro and 3 peptides were validated in vivo. Data establishing the scientific basis of the health benefits associated with the consumption of edible insects can be a valuable contribution to overcoming the cultural issues that hinder the introduction of insects in the Western diet.
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Affiliation(s)
| | | | | | | | - Isabel Mafra
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (C.S.S.T.); (C.V.); (J.C.); (I.M.P.L.V.O.F.)
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14
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Siddiqui SA, Li C, Aidoo OF, Fernando I, Haddad MA, Pereira JA, Blinov A, Golik A, Câmara JS. Unravelling the potential of insects for medicinal purposes - A comprehensive review. Heliyon 2023; 9:e15938. [PMID: 37206028 PMCID: PMC10189416 DOI: 10.1016/j.heliyon.2023.e15938] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/20/2023] [Accepted: 04/27/2023] [Indexed: 05/21/2023] Open
Abstract
Entomotherapy, the use of insects for medicinal purposes, has been practised for centuries in many countries around the world. More than 2100 edible insect species are eaten by humans, but little is known about the possibility of using these insects as a promising alternative to traditional pharmaceuticals for treating diseases. This review offers a fundamental understanding of the therapeutic applications of insects and how they might be used in medicine. In this review, 235 insect species from 15 orders are reported to be used as medicine. Hymenoptera contains the largest medicinal insect species, followed by Coleoptera, Orthoptera, Lepidoptera, and Blattodea. Scientists have examined and validated the potential uses of insects along with their products and by-products in treating various diseases, and records show that they are primarily used to treat digestive and skin disorders. Insects are known to be rich sources of bioactive compounds, explaining their therapeutic features such as anti-inflammatory, antimicrobial, antiviral, and so on. Challenges associated with the consumption of insects (entomophagy) and their therapeutic uses include regulation barriers and consumer acceptance. Moreover, the overexploitation of medicinal insects in their natural habitat has led to a population crisis, thus necessitating the investigation and development of their mass-rearing procedure. Lastly, this review suggests potential directions for developing insects used in medicine and offers advice for scientists interested in entomotherapy. In future, entomotherapy may become a sustainable and cost-effective solution for treating various ailments and has the potential to revolutionize modern medicine.
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Affiliation(s)
- Shahida Anusha Siddiqui
- Technical University of Munich Campus Straubing for Biotechnology and Sustainability, Essigberg 3, 94315 Straubing, Germany
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing Str. 7, 49610 D-Quakenbrück, Germany
- Corresponding author. Technical University of Munich Campus Straubing for Biotechnology and Sustainability, Essigberg 3, 94315 Straubing, Germany.
| | - Chujun Li
- Guangzhou Unique Biotechnology Co., Ltd, 510663, Guangzhou, China
- State Key Laboratory of Biocontrol, School of Life Science, Sun Yat-sen University, Guangzhou, 510006, China
| | - Owusu Fordjour Aidoo
- Department of Biological, Physical and Mathematical Sciences, University of Environment and Sustainable Development, 00233, Somanya, Ghana
| | - Ito Fernando
- Department of Plant Pest and Diseases, Faculty of Agriculture, Universitas Brawijaya, Malang, 65145, East Java, Indonesia
| | - Moawiya A. Haddad
- Department of Nutrition and Food Processing, Faculty of Agricultural Technology, Al-Balqa Applied University, 19117, Al-Salt, Jordan
| | - Jorge A.M. Pereira
- CQM – Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
| | - Andrey Blinov
- North Caucasus Federal University, Pushkina Street 1, 355009, Stavropol, Russia
| | - Andrey Golik
- North Caucasus Federal University, Pushkina Street 1, 355009, Stavropol, Russia
| | - José S. Câmara
- CQM – Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- Departamento de Química, Faculdade de Ciências Exatas e Engenharia, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
- Corresponding author. CQM – Centro de Química da Madeira, Universidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal.
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15
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Mirzaee H, Ahmadi Gavlighi H, Nikoo M, Udenigwe CC, Khodaiyan F. Relation of amino acid composition, hydrophobicity, and molecular weight with antidiabetic, antihypertensive, and antioxidant properties of mixtures of corn gluten and soy protein hydrolysates. Food Sci Nutr 2023; 11:1257-1271. [PMID: 36911847 PMCID: PMC10003021 DOI: 10.1002/fsn3.3160] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 12/12/2022] Open
Abstract
New mixed Alcalase-hydrolysates were developed using corn gluten meal (CP) and soy protein (SP) hydrolysates, namely CPH, SPH, SPH30:CPH70, SPH70:CPH30, and SPH50:CPH50. Amino acid profile, surface hydrophobicity (H 0), molecular weight (MW) distribution, antioxidant activity, angiotensin-converting enzyme (ACE), α-amylase, and α-glucosidase inhibitory activities, and functional characteristics of hydrolysates were determined. Hydrolysis changed the amount of hydrophilic and hydrophobic amino acid composition and significantly increased the H 0 values of hydrolysates, especially for CPH. The DPPH radical scavenging activity (RSA) was higher for CPH, SPH30:CPH70, and SPH50:CPH50 than SPH and SPH70:CPH30. Moreover, SPH, SPH70:CPH30, and SPH50:CPH50 showed lower MW than CPH, and this correlated with the higher hydrophilicity, and ABTS and hydroxyl RSA values obtained for SPH and the mixed hydrolysates with predominantly SPH. SPH70:CPH30 exhibited higher ACE, α-glucosidase, and α-amylase inhibitory activities among all samples due to its specific peptides with high capacity to interact with amino acid residues located at the enzyme active site and also low binding energy. At 15% degree of hydrolysis, both SPH and CPH showed enhanced solubility at pH 4.0, 7.0 and 9.0, emulsifying activity, and foaming capacity. Taken together, SPH70:CPH30 displayed strong antioxidant, antihypertensive, and antidiabetic attributes, emulsifying activity and stability indexes, and foaming capacity and foaming stability, making it a promising multifunctional ingredient for the development of functional food products.
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Affiliation(s)
- Homaira Mirzaee
- Department of Food Science and Technology, Faculty of AgricultureTarbiat Modares UniversityTehranIran
| | - Hassan Ahmadi Gavlighi
- Department of Food Science and Technology, Faculty of AgricultureTarbiat Modares UniversityTehranIran
- Institute for Natural Products and Medicinal PlantsTarbiat Modares UniversityTehranIran
| | - Mehdi Nikoo
- Department of Pathobiology and Quality Control, Artemia and Aquaculture Research InstituteUrmia UniversityUrmiaIran
| | | | - Faramarz Khodaiyan
- Bioprocessing and Biodetection Laboratory, Department of Food Science and EngineeringUniversity of TehranKarajIran
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16
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Identification and Molecular Binding Mechanism of Novel α-Glucosidase Inhibitory Peptides from Hot-Pressed Peanut Meal Protein Hydrolysates. Foods 2023; 12:foods12030663. [PMID: 36766195 PMCID: PMC9914213 DOI: 10.3390/foods12030663] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/20/2023] [Accepted: 01/29/2023] [Indexed: 02/05/2023] Open
Abstract
Hot-pressed peanut meal protein hydrolysates are rich in Arg residue, but there is a lack of research on their α-glucosidase inhibitory activity. In this study, different proteases were used to produce hot-pressed peanut meal protein hydrolysates (PMHs) to evaluate the α-glucosidase inhibitory activity. All PMHs showed good α-glucosidase inhibitory activity with the best inhibition effect coming from the dual enzyme system of Alcalase and Neutrase with an IC50 of 5.63 ± 0.19 mg/mL. The fractions with the highest inhibition effect were separated and purified using ultrafiltration and cation exchange chromatography. Four novel α-glucosidase inhibitory peptides (FYNPAAGR, PGVLPVAS, FFVPPSQQ, and FSYNPQAG) were identified by nano-HPLC-MS/MS and molecular docking. Molecular docking showed that peptides could occupy the active pocket of α-glucosidase through hydrogen bonding, hydrophobic interaction, salt bridges, and π-stacking, thus preventing the formation of complexes between α-glucosidase and the substrate. In addition, the α-glucosidase inhibitory activity of PMHs was stable against hot, pH treatment and in vitro gastrointestinal digestion. The study demonstrated that PMHs might be used as a natural anti-diabetic material with the potential to inhibit α-glucosidase.
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18
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Effects of a commercial peptidase on rheology, microstructure, gluten properties of wheat dough and bread quality. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113266] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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