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Huang M, Wang T, Wang Y, Deng Q, Chen J, Li L, Luo H, Lu Y. Marine sourced tripeptide SRP and its sustained-release formulation SRP-PLGA-MS exhibiting antihypertensive effect in spontaneously hypertensive rats and HUVECs. Front Nutr 2024; 11:1423098. [PMID: 38933890 PMCID: PMC11199895 DOI: 10.3389/fnut.2024.1423098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 05/27/2024] [Indexed: 06/28/2024] Open
Abstract
Biopeptides from Sipunculus nudus were reported with good ACE inhibitory activity, and the tripeptide SRP was one with the highest ACE inhibition rate. However, the disadvantage of short half-life limited the development of peptide drugs. Moreover, the distinct mechanism of the peptide inhibiting ACE remained unknown. Thus, in this study, a sustained release formulation of SRP-PLGA-MS was designed and prepared. Its long-lasting antihypertensive effect as well as improvement of vascular pathomorphology was verified in spontaneously hypertensive rat (SHR). In addition, the anti-oxidant activity of SRP in human umbilical vein endothelial cells (HUVECs) was evaluated. The results showed that SRP inhibited the production of ROS and NO, which involve the NADPH oxidase, and Keap1/Nrf2 signaling pathway. This study demonstrated that SRP-PLGA-MS had the potential to develop sustained-release drugs for hypertension treatment.
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Affiliation(s)
- Miaoen Huang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- College of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Tianji Wang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- College of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Yinghao Wang
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- Zhanjiang Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Qingyan Deng
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- College of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Jinjun Chen
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- Zhanjiang Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Li Li
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- College of Pharmacy, Guangdong Medical University, Zhanjiang, China
| | - Hui Luo
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- College of Pharmacy, Guangdong Medical University, Zhanjiang, China
- Zhanjiang Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
| | - Yingnian Lu
- Guangdong Key Laboratory for Research and Development of Natural Drugs, Guangdong Medical University, Zhanjiang, China
- College of Pharmacy, Guangdong Medical University, Zhanjiang, China
- Zhanjiang Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, China
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Li W, Chen W, Wang J, Zhang Z, Wu D, Liu P, Li Z, Ma H, Yang Y. Revealing the ACE receptor binding properties and interaction mechanisms of salty oligopeptides from Stropharia rugosoannulata mushroom by molecular simulation and antihypertensive evaluation. Food Funct 2024; 15:5527-5538. [PMID: 38700280 DOI: 10.1039/d4fo00596a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
The salty oligopeptides from Stropharia rugosoannulata have been proven to be potential ACE inhibitors. To investigate the ACE receptor binding properties and interaction mechanisms of salty oligopeptides, the molecular interaction, dynamics simulation, and antihypertensive evaluation cross-validation strategy were employed to reveal the oligopeptides' binding reactions and modes with the ACE receptor. Single oligopeptide (ESPERPFL, KSWDDFFTR) had exothermic and specific binding reactions with the ACE receptor, driven by hydrogen bonds and van der Waals forces. The coexistence of the multiple oligopeptide molecules did not produce the apparent ACE receptor competition binding reactions. The molecular dynamics simulation verified that the two oligopeptides disturbed the ACE receptor's different residue regions. Both oligopeptides could form stable complexes with the ACE receptor. Based on the classification of 50 oligopeptides' binding modes, ESPERPFL and KSWDDFFTR belonged to different classes, and their receptor binding modes and sites complemented, resulting in a potential synergistic effect on ACE inhibition. The antihypertensive effect of KSWDDFFTR and its distribution in the body were evaluated using SHR rats orally and ICR mice by tail vein injection, and KSWDDFFTR had antihypertensive effects within 8 h. The study provides a theoretical basis for understanding salty oligopeptides' ACE receptor binding mechanism and their antihypertensive effects.
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Affiliation(s)
- Wen Li
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, People's Republic of China.
- Shanghai Guosen Bio-tech Co. Ltd, Shanghai 201403, China
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Wanchao Chen
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, People's Republic of China.
- Shanghai Guosen Bio-tech Co. Ltd, Shanghai 201403, China
| | - Jinbin Wang
- Institute of Biotechnology Research, Shanghai Academy of Agricultural Sciences, Key Laboratory of Agricultural Genetics and Breeding, Shanghai 201106, China
| | - Zhong Zhang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, People's Republic of China.
- Shanghai Guosen Bio-tech Co. Ltd, Shanghai 201403, China
| | - Di Wu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, People's Republic of China.
- Shanghai Guosen Bio-tech Co. Ltd, Shanghai 201403, China
| | - Peng Liu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, People's Republic of China.
- Shanghai Guosen Bio-tech Co. Ltd, Shanghai 201403, China
| | - Zhengpeng Li
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, People's Republic of China.
- Shanghai Guosen Bio-tech Co. Ltd, Shanghai 201403, China
| | - Haile Ma
- School of Food & Biological Engineering, Institute of Food Physical Processing, Jiangsu University, Zhenjiang 212013, China.
| | - Yan Yang
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, National Engineering Research Center of Edible Fungi, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, People's Republic of China.
- Shanghai Guosen Bio-tech Co. Ltd, Shanghai 201403, China
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Xie J, Chen S, Huan P, Wang S, Zhuang Y. A novel angiotensin I-converting enzyme inhibitory peptide from walnut (Juglans sigillata) protein hydrolysates and its evaluation in Ang II-induced HUVECs and hypertensive rats. Int J Biol Macromol 2024; 266:131152. [PMID: 38556230 DOI: 10.1016/j.ijbiomac.2024.131152] [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: 12/02/2023] [Revised: 02/28/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
This study aims to seek angiotensin-I-converting enzyme inhibitory (ACEi) peptides from walnut using different enzymatic hydrolysis, and further to validate the potent ACEi peptides identified and screened via peptidomics and in silico analysis against hypertension in spontaneously hypertensive rats (SHRs). Results showed that walnut protein hydrolysate (WPH) prepared by combination of alcalase and simulated gastrointestinal digestion exhibited high ACEi activity. WPH was separated via Sephadex-G25, and four peptides were identified, screened and verified based on their PeptideRanker score, structural characteristic and ACE inhibition. Interestingly, FDWLR showed the highest ACEi activity with IC50 value of 8.02 μg/mL, which might be related to its close affinity with ACE observed in molecular docking. Subsequently, high absorption and non-toxicity of FDWLR was predicted via in silico absorption, distribution, metabolism, excretion and toxicity. Furthermore, FDWLR exhibited positively vasoregulation in Ang II-induced human umbilical vein endothelial cells, and great blood pressure lowering effect in SHRs.
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Affiliation(s)
- Jinxiang Xie
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, No. 727 South Jingming Road, Kunming, Yunnan 650500, China
| | - Shupeng Chen
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, No. 727 South Jingming Road, Kunming, Yunnan 650500, China
| | - Pengtao Huan
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, No. 727 South Jingming Road, Kunming, Yunnan 650500, China
| | - Shuguang Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, No. 727 South Jingming Road, Kunming, Yunnan 650500, China.
| | - Yongliang Zhuang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, No. 727 South Jingming Road, Kunming, Yunnan 650500, China.
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Hu YD, Xi QH, Kong J, Zhao YQ, Chi CF, Wang B. Angiotensin-I-Converting Enzyme (ACE)-Inhibitory Peptides from the Collagens of Monkfish ( Lophius litulon) Swim Bladders: Isolation, Characterization, Molecular Docking Analysis and Activity Evaluation. Mar Drugs 2023; 21:516. [PMID: 37888451 PMCID: PMC10608021 DOI: 10.3390/md21100516] [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: 09/10/2023] [Revised: 09/25/2023] [Accepted: 09/27/2023] [Indexed: 10/28/2023] Open
Abstract
The objective of this study was to isolate and characterize collagen and angiotensin-I-converting enzyme (ACE)-inhibitory (ACEi) peptides from the swim bladders of monkfish (Lophius litulon). Therefore, acid-soluble collagen (ASC-M) and pepsin-soluble collagen (PSC-M) with yields of 4.27 ± 0.22% and 9.54 ± 0.51%, respectively, were extracted from monkfish swim bladders using acid and enzyme methods. The ASC-M and PSC-M contained Gly (325.2 and 314.9 residues/1000 residues, respectively) as the major amino acid, but they had low imino acid content (192.5 and 188.6 residues/1000 residues, respectively) in comparison with collagen from calf skins (CSC) (216.6 residues/1000 residues). The sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) patterns and ultraviolet (UV) absorption spectrums of ASC-M and PSC-M illustrated that they were mainly composed of type I collagen. Subsequently, three ACEi peptides were isolated from a PSC-M hydrolysate prepared via a double-enzyme system (alcalase + neutrase) and identified as SEGPK (MHP6), FDGPY (MHP7) and SPGPW (MHP9), with molecular weights of 516.5, 597.6 and 542.6 Da, respectively. SEGPK, FDGPY and SPGPW displayed remarkable anti-ACE activity, with IC50 values of 0.63, 0.94 and 0.71 mg/mL, respectively. Additionally, a molecular docking assay demonstrated that the affinities of SEGPK, FDGPY and SPGPW with ACE were -7.3, -10.9 and -9.4 kcal/mol, respectively. The remarkable ACEi activity of SEGPK, FDGPY and SPGPW was due to their connection with the active pockets and/or sites of ACE via hydrogen bonding, hydrophobic interaction and electrostatic force. Moreover, SEGPK, FDGPY and SPGPW could protect HUVECs by controlling levels of nitric oxide (NO) and endothelin-1 (ET-1). Therefore, this work provides an effective means for the preparation of collagens and novel ACEi peptides from monkfish swim bladders, and the prepared ACEi peptides, including SEGPK, FDGPY and SPGPW, could serve as natural functional components in the development of health care products to control hypertension.
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Affiliation(s)
- Yu-Dong Hu
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Qing-Hao Xi
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Jing Kong
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Yu-Qin Zhao
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Chang-Feng Chi
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Bin Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
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Zhu WY, Wang YM, Ge MX, Wu HW, Zheng SL, Zheng HY, Wang B. Production, identification, in silico analysis, and cytoprotection on H 2O 2-induced HUVECs of novel angiotensin-I-converting enzyme inhibitory peptides from Skipjack tuna roes. Front Nutr 2023; 10:1197382. [PMID: 37502715 PMCID: PMC10369073 DOI: 10.3389/fnut.2023.1197382] [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: 03/31/2023] [Accepted: 06/26/2023] [Indexed: 07/29/2023] Open
Abstract
Background Exceeding 50% tuna catches are regarded as byproducts in the production of cans. Given the high amount of tuna byproducts and their environmental effects induced by disposal and elimination, the valorization of nutritional ingredients from these by-products receives increasing attention. Objective This study was to identify the angiotensin-I-converting enzyme (ACE) inhibitory (ACEi) peptides from roe hydrolysate of Skipjack tuna (Katsuwonus pelamis) and evaluate their protection functions on H2O2-induced human umbilical vein endothelial cells (HUVECs). Methods Protein hydrolysate of tuna roes with high ACEi activity was prepared using flavourzyme, and ACEi peptides were isolated from the roe hydrolysate using ultrafiltration and chromatography methods and identified by ESI/MS and Procise Protein/Peptide Sequencer for the N-terminal amino acid sequence. The activity and mechanism of action of isolated ACEi peptides were investigated through molecular docking and cellular experiments. Results Four ACEi peptides were identified as WGESF (TRP3), IKSW (TRP6), YSHM (TRP9), and WSPGF (TRP12), respectively. The affinity of WGESF (TRP3), IKSW (TRP6), YSHM (TRP9), and WSPGF (TRP12) with ACE was -8.590, -9.703, -9.325, and -8.036 kcal/mol, respectively. The molecular docking experiment elucidated that the significant ACEi ability of WGESF (TRP3), IKSW (TRP6), YSHM (TRP9), and WSPGF (TRP12) was mostly owed to their tight bond with ACE's active sites/pockets via hydrophobic interaction, electrostatic force and hydrogen bonding. Additionally, WGESF (TRP3), IKSW (TRP6), YSHM (TRP9), and WSPGF (TRP12) could dramatically elevate the Nitric Oxide (NO) production and bring down endothelin-1 (ET-1) secretion in HUVECs, but also abolish the opposite impact of norepinephrine (0.5 μM) on the production of NO and ET-1. Moreover, WGESF (TRP3), IKSW (TRP6), YSHM (TRP9), and WSPGF (TRP12) could lower the oxidative damage and apoptosis rate of H2O2-induced HUVECs, and the mechanism indicated that they could increase the content of NO and activity of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) to decrease the generation of reactive oxygen species (ROS) and malondialdehyde (MDA). Conclusion WGESF (TRP3), IKSW (TRP6), YSHM (TRP9), and WSPGF (TRP12) are beneficial ingredients for healthy products ameliorating hypertension and cardiovascular diseases.
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Affiliation(s)
- Wang-Yu Zhu
- Cell and Molecular Biology Laboratory, Zhoushan Hospital, Zhejiang Province, Zhoushan, China
| | - Yu-Mei Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Ming-Xue Ge
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Hua-Wei Wu
- Ningbo Today Food Co., Ltd., Ningbo, China
| | - Shuo-Lei Zheng
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
| | - Huai-Yu Zheng
- Cell and Molecular Biology Laboratory, Zhoushan Hospital, Zhejiang Province, Zhoushan, China
| | - Bin Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan, China
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Chen Y, Zhang Y, Qi Q, Liang F, Wang N, Chen Q, Li X, Sun S, Wang X, Bai K, Wang W, Jiao Y. Preparation and activity evaluation of angiotensin-I converting enzyme inhibitory peptides from protein hydrolysate of mulberry leaf. Front Nutr 2023; 9:1064526. [PMID: 36825069 PMCID: PMC9941179 DOI: 10.3389/fnut.2022.1064526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 11/04/2022] [Indexed: 02/10/2023] Open
Abstract
Angiotensin-I converting enzyme (ACE) inhibitory peptides drew wide attention in the food industry because of their natural reliability, non-toxicity, and safety. However, the characteristics of ACE inhibitory peptides obtained from protein hydrolysate of mulberry leaf prepared by Flavourzyme were still unclear. Based on the single-factor test, the Plackett-Burman test and response surface test were used to determine the key factors affecting the ACE inhibition rate in mulberry leaf protein hydrolysate and the optimum conditions of enzymatic hydrolysis. The results showed that the optimum technical parameters were as follows: the ratio of material to liquid is 1: 25 (w / v, g/mL), the Flavourzyme to substrate ratio was 3,000 U/g, the temperature of enzymatic hydrolysis was 50°C, pH was 6.3, and the time of enzymatic hydrolysis was 2.9 h. The ACE inhibitory peptides in the mulberry leaf protein hydrolysates were purified by ultrafiltration and gel filtration, aiming to obtain the highest active component. The 12 peptide sequences were identified by reverse liquid chromatography-mass spectrometry, and then, they were docked to the crystal structure of human angiotensin-I converting enzyme (1O8A), and the interaction mechanisms of 12 peptide sequences and 1O8A were analyzed. The docking results showed that among the 12 peptide sequences, ERFNVE (792.37 Da), TELVLK (351.72 Da), MELVLK (366.72 Da), and FDDKLD (376.67 Da), all had the lowest docking energy, and inhibition constant. The chemosynthetic ERFNVE (IC50: 2.65 mg/mL), TELVLK (IC50: 0.98 mg/mL), MELVLK (IC50:1.90 mg/mL) and FDDKLD (IC50:0.70 mg/mL) demonstrated high ACE-inhibitory activity with competitive inhibition mode. These results indicated that the ACE-inhibiting peptides from mulberry leaf protein hydrolyzed (FHMP) had the potential activities to inhibit ACE and could be used as functional food or drugs to inhibit ACE. This work provides positive support for mining the biological activity of mulberry leaves in the treatment of hypertension.
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Affiliation(s)
- Yu Chen
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, China,Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yu Zhang
- Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China,Key Laboratory of Agricultural Product Information Traceability, Ministry of Agriculture and Rural Affairs of China, Hangzhou, China,Zhejiang Provincial Key Laboratory of Food Safety, Hangzhou, China
| | - Qianhui Qi
- Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Feng Liang
- Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China,College of Food Science and Engineering, Bohai University, Jinzhou, China
| | - Nan Wang
- Zhejiang Shuren University, Hangzhou, China
| | - Qihe Chen
- School of Biological Systems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Xue Li
- Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China,Key Laboratory of Agricultural Product Information Traceability, Ministry of Agriculture and Rural Affairs of China, Hangzhou, China,Zhejiang Provincial Key Laboratory of Food Safety, Hangzhou, China
| | - Suling Sun
- Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Xinquan Wang
- Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Kaiwen Bai
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China
| | - Wei Wang
- Institute of Agricultural Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China,School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China,*Correspondence: Wei Wang,
| | - Yingchun Jiao
- College of Agriculture and Animal Husbandry, Qinghai University, Xining, China,Yingchun Jiao,
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Zhu Q, Xue J, Wang P, Wang X, Zhang J, Fang X, He Z, Wu F. Identification of a Novel ACE Inhibitory Hexapeptide from Camellia Seed Cake and Evaluation of Its Stability. Foods 2023; 12:foods12030501. [PMID: 36766030 PMCID: PMC9914026 DOI: 10.3390/foods12030501] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
The camellia seed cake proteins (CP) used in this study were individually hydrolyzed with neutral protease, alkaline protease, papain, and trypsin. The results showed that the hydrolysate had the highest ACE inhibitory activity at 67.36 ± 0.80% after four hours of neutral protease hydrolysis. Val-Val-Val-Pro-Gln-Asn (VVVPQN) was then obtained through ultrafiltration, Sephadex G-25 gel chromatography separation, LC-MS/MS analysis, and in silico screening. VVVPQN had ACE inhibitory activity with an IC50 value of 0.13 mg/mL (198.66 μmol/L), and it inhibited ACE in a non-competitive manner. The molecular docking indicated that VVVPQN can combine with ACE to form eight hydrogen bonds. The results of the stability study showed that VVVPQN maintained high ACE-inhibitory activity in weakly acidic and neutral environments and that heat treatment (20-80 °C) and Na+, Mg2+, as well as Fe3+ metal ions had little effect on the activity of VVVPQN. Moreover, it remained relatively stable after in vitro simulated gastrointestinal digestion. These results revealed that VVVPQN identified in camellia seed cake has the potential to be applied in functional food or antihypertensive drugs.
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Affiliation(s)
- Qiaonan Zhu
- College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Jiawen Xue
- College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Peng Wang
- College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Xianbo Wang
- Zhejiang Feixiangyuan Food Co., Ltd., Lishui 323400, China
| | - Jiaojiao Zhang
- College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
| | - Xuezhi Fang
- Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou 311400, China
| | - Zhiping He
- College of Food and Health, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
- Correspondence: (Z.H.); (F.W.)
| | - Fenghua Wu
- College of Advanced Agricultural Sciences, Zhejiang Agriculture and Forestry University, Hangzhou 311300, China
- Correspondence: (Z.H.); (F.W.)
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Li S, Du G, Shi J, Zhang L, Yue T, Yuan Y. Preparation of antihypertensive peptides from quinoa via fermentation with
Lactobacillus paracasei. EFOOD 2022. [DOI: 10.1002/efd2.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Shuai Li
- College of Food Science and Engineering Northwest A&F University Yangling China
- Laboratory of Quality & Safety Risk Assessment for Agro‐products (Yangling) Ministry of Agriculture Yangling China
| | - Gengan Du
- College of Food Science and Engineering Northwest A&F University Yangling China
- Laboratory of Quality & Safety Risk Assessment for Agro‐products (Yangling) Ministry of Agriculture Yangling China
| | - Jiajun Shi
- College of Food Science and Engineering Northwest A&F University Yangling China
- Laboratory of Quality & Safety Risk Assessment for Agro‐products (Yangling) Ministry of Agriculture Yangling China
| | - Lin Zhang
- College of Food Science and Engineering Northwest A&F University Yangling China
- Laboratory of Quality & Safety Risk Assessment for Agro‐products (Yangling) Ministry of Agriculture Yangling China
| | - Tianli Yue
- College of Food Science and Engineering Northwest A&F University Yangling China
- Laboratory of Quality & Safety Risk Assessment for Agro‐products (Yangling) Ministry of Agriculture Yangling China
- College of Food Science and Techonology Northwest University Xi'an China
| | - Yahong Yuan
- College of Food Science and Engineering Northwest A&F University Yangling China
- Laboratory of Quality & Safety Risk Assessment for Agro‐products (Yangling) Ministry of Agriculture Yangling China
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