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Xi X, Fan G, Xue H, Peng S, Huang W, Zhan J. Harnessing the Potential of Quinoa: Nutritional Profiling, Bioactive Components, and Implications for Health Promotion. Antioxidants (Basel) 2024; 13:829. [PMID: 39061898 DOI: 10.3390/antiox13070829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/01/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Quinoa, a globally cultivated "golden grain" belonging to Chenopodium in the Amaranthaceae family, is recognized for being gluten-free, with a balanced amino acid profile and multiple bioactive components, including peptides, polysaccharides, polyphenols, and saponins. The bioactive compounds extracted from quinoa offer multifaceted health benefits, including antioxidative, anti-inflammatory, antimicrobial, cardiovascular disease (CVD) improvement, gut microbiota regulation, and anti-cancer effects. This review aims to intricately outline quinoa's nutritional value, functional components, and physiological benefits. Importantly, we comprehensively provide conclusions on the effects and mechanisms of these quinoa-derived bioactive components on multiple cancer types, revealing the potential of quinoa seeds as promising and effective anti-cancer agents. Furthermore, the health-promoting role of quinoa in modulating gut microbiota, maintaining gut homeostasis, and protecting intestinal integrity was specifically emphasized. Finally, we provided a forward-looking description of the opportunities and challenges for the future exploration of quinoa. However, in-depth studies of molecular targets and clinical trials are warranted to fully understand the bioavailability and therapeutic application of quinoa-derived compounds, especially in cancer treatment and gut microbiota regulation. This review sheds light on the prospect of developing dietary quinoa into functional foods or drugs to prevent and manage human diseases.
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Affiliation(s)
- Xiaomin Xi
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Guanghe Fan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Huimin Xue
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Shuai Peng
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Weidong Huang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Jicheng Zhan
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
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2
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Chen J, Ji H, Luo J, Zhang D, Liu S. Two novel angiotensin-converting enzyme (ACE) and dipeptidyl peptidase IV (DPP-IV) inhibiting peptides from tilapia (Oreochromis mossambicus) skin and their molecular docking mechanism. J Food Sci 2024; 89:3603-3617. [PMID: 38638071 DOI: 10.1111/1750-3841.17059] [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: 09/25/2023] [Revised: 03/03/2024] [Accepted: 03/16/2024] [Indexed: 04/20/2024]
Abstract
In the study, papain was used to hydrolyze tilapia (Oreochromis mossambicus) skin to obtain a tilapia skin hydrolysate (TSH) with dual angiotensin-converting enzyme (ACE) and dipeptidyl peptidase IV (DPP-IV) inhibitory activities. The resulting TSH was sequentially fractionated by ultrafiltration, size exclusion separation chromatography, and reverse-phase high-performance liquid chromatography. Its inhibitory effects on ACE and DPP-IV were determined by commercial reagent kits. Two peptides purified from TSH were identified as Gly-Pro-Leu-Gly-Ala-Leu (GPLGAL) and Lys-Pro-Ala-Gly-Asn (KPAGN) by the ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Inhibitory concentration (IC50) of GPLGAL on ACE and DPP-IV were 117.20 ± 1.69 and 187.10 ± 2.75 µM, respectively. IC50 of KPAGN on ACE and DPP-IV were 137.40 ± 2.33 and 259.20 ± 2.85 µM, respectively. The molecular simulation demonstrated that the binding affinities of GPLGAL to ACE and DPP-IV proteins were -8.5 and -7.4 kcal/mol, respectively, whereas those of KPAGN to ACE and DPP-IV proteins were -7.9 and -6.7 kcal/mol, respectively. GPLGAL interacted with 21 amino acid residues of the ACE active site, whereas KPAGN engaged with 19 amino acid residues. Additionally, GPLGAL interacted with 10 amino acid residues of the DPP-IV active site, whereas KPAGN engaged with 13 amino acid residues. The two peptides predominantly occupied the active sites of ACE (His513, Tyr523, and Ala354) and DPP-IV (Tyr662 and Arg125) through hydrogen bonding. This leads to the deactivation of ACE and DPP-IV. PRACTICAL APPLICATION: Accelerate tilapia skin development and high-value utilization; provide foundation for preparing the peptides with dual ACE and DPP-IV inhibiting activity.
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Affiliation(s)
- Jiayi Chen
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, P. R. China
| | - Hongwu Ji
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, P. R. China
- Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Zhanjiang, P. R. China
- Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang, P. R. China
- Guangdong Provincial Engineering Technology Research Center of seafood, Zhanjiang, P. R. China
- Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, P. R. China
| | - Jing Luo
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, P. R. China
| | - Di Zhang
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, P. R. China
- Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Zhanjiang, P. R. China
| | - Shucheng Liu
- College of Food Science and Technology, Guangdong Ocean University, Zhanjiang, P. R. China
- Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Zhanjiang, P. R. China
- Guangdong Province Engineering Laboratory for Marine Biological Products, Zhanjiang, P. R. China
- Guangdong Provincial Engineering Technology Research Center of seafood, Zhanjiang, P. R. China
- Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang, P. R. China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, P. R. China
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3
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Xu Q, Zheng L, Huang M, Zhao M. Collagen derived Gly-Pro-type DPP-IV inhibitory peptides: Structure-activity relationship, inhibition kinetics and inhibition mechanism. Food Chem 2024; 441:138370. [PMID: 38199113 DOI: 10.1016/j.foodchem.2024.138370] [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: 10/20/2023] [Revised: 12/20/2023] [Accepted: 01/04/2024] [Indexed: 01/12/2024]
Abstract
Our previous study has demonstrated that both the amino acid at N3 position and peptide length affected the DPP-IV inhibitory activity of Gly-Pro-type peptides. To further elucidate their molecular mechanism, a combined approach of QSAR modeling, enzymatic kinetics and molecular docking was used. Results showed that the QSAR models of Gly-Pro-type tripeptides and Gly-Pro-type peptides containing 3-12 residues were successfully constructed by 5z-scale descriptor with R2 of 0.830 and 0.797, respectively. The lower values of electrophilicity, polarity, and side-chain bulk of amino acid at N3 position caused higher DPP-IV inhibitory activity of Gly-Pro-type peptides. Moreover, an appropriate increase in the length of Gly-Pro-type peptides did not change their competitive inhibition mode, but decreased their inhibition constants (Ki values) and increased interactions with DPP-IV. More importantly, the interactions between the residues at C-terminal of Gly-Pro-type peptides containing 5 ∼ 6 residues with S2 extensive subsites (Ser209, Phe357, Arg358) of DPP-IV increased the interactions of Gly residue at N1 position with the S2 subsites (Glu205, Glu206, Asn710, Arg125, Tyr662) and decreased the acylation level of DPP-IV-peptide complex, and thereby increasing peptides' DPP-IV inhibitory activity.
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Affiliation(s)
- Qiongyao Xu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China
| | - Lin Zheng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China.
| | - Mingtao Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou, 521000, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Chaozhou Branch of Chemistry and Chemical Engineering Guangdong Laboratory, Chaozhou, 521000, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510650, China.
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4
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Kröber TU, Holzer M, Kerpes R, Mittermeier-Kleßinger VK, Dawid C, Becker T. Enrichment and Quantitation of Dipeptidyl Peptidase IV Inhibitory Peptides in Quinoa upon Systematic Malting. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:11480-11492. [PMID: 38733562 PMCID: PMC11117401 DOI: 10.1021/acs.jafc.4c00570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/13/2024] [Accepted: 05/05/2024] [Indexed: 05/13/2024]
Abstract
Food-derived peptides with an inhibitory effect on dipeptidyl peptidase IV (DPP-IV) can be used as an additive treatment for type 2 diabetes. The inhibitory potential of food depends on technological protein hydrolysis and gastrointestinal digestion, as the peptides only act after intestinal resorption. The effect of malting as a hydrolytic step on the availability of these peptides in grains has yet to be investigated. In this study, quinoa was malted under systematic temperature, moisture, and time variations. In the resulting malts, the DPP-IV inhibition reached a maximum of 45.02 (±10.28) %, whereas the highest overall concentration of literature-known inhibitory peptides was 4.07 μmol/L, depending on the malting parameters. After in vitro gastrointestinal digest, the inhibition of most malts, as well as the overall concentration of inhibitory peptides, could be increased significantly. Additionally, the digested malts showed higher values in both the inhibition and the peptide concentration than the unmalted quinoa. Concerning the malting parameters, germination time had the highest impact on the inhibition and the peptide concentration after digest. An analysis of the protein sizes before and after malting gave first hints toward the origin of these peptides, or their precursors, in quinoa.
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Affiliation(s)
- Tabea
D. U. Kröber
- Chair
of Brewing and Beverage Technology, School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Steig 20, 85354 Freising, Germany
| | - Magdalena Holzer
- Chair
of Food Chemistry and Molecular Sensory Science, School of Life Sciences
Weihenstephan, Technical University of Munich, Lise-Meitner-Strasse 34, 85354 Freising, Germany
| | - Roland Kerpes
- Chair
of Brewing and Beverage Technology, School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Steig 20, 85354 Freising, Germany
| | - Verena K. Mittermeier-Kleßinger
- Chair
of Food Chemistry and Molecular Sensory Science, School of Life Sciences
Weihenstephan, Technical University of Munich, Lise-Meitner-Strasse 34, 85354 Freising, Germany
| | - Corinna Dawid
- Chair
of Food Chemistry and Molecular Sensory Science, School of Life Sciences
Weihenstephan, Technical University of Munich, Lise-Meitner-Strasse 34, 85354 Freising, Germany
- Professorship
for Functional Phytometabolomics, School of Life Sciences Weihenstephan, Technical University of Munich, Lise-Meitner-Strasse 34, 85354 Freising, Germany
| | - Thomas Becker
- Chair
of Brewing and Beverage Technology, School of Life Sciences Weihenstephan, Technical University of Munich, Weihenstephaner Steig 20, 85354 Freising, Germany
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5
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Wu Y, Zhang J, Zhu R, Zhang H, Li D, Li H, Tang H, Chen L, Peng X, Xu X, Zhao K. Mechanistic Study of Novel Dipeptidyl Peptidase IV Inhibitory Peptides from Goat's Milk Based on Peptidomics and In Silico Analysis. Foods 2024; 13:1194. [PMID: 38672866 PMCID: PMC11049645 DOI: 10.3390/foods13081194] [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: 03/01/2024] [Revised: 04/01/2024] [Accepted: 04/05/2024] [Indexed: 04/28/2024] Open
Abstract
Two novel dipeptidyl peptidase IV (DPP-IV) inhibitory peptides (YPF and LLLP) were discovered from goat milk protein by peptidomics, in silico analysis, and in vitro assessment. A total of 698 peptides (<23 AA) were successfully identified by LC-MS/MS from goat milk hydrolysates (hydrolyzed by papaian plus proteinase K). Then, 105 potential DPP-IV inhibitory peptides were screened using PeptideRanker, the ToxinPred tool, Libdock, iDPPIV-SCM, and sequence characteristics. After ADME, physicochemical property evaluation, and a literature search, 12 candidates were efficiently selected and synthesized in vitro for functional validation. Two peptides (YPF and LLLP) were found to exert relatively high in vitro chemical system (IC50 = 368.54 ± 12.97 μM and 213.99 ± 0.64 μM) and in situ (IC50 = 159.46 ± 17.40 μM and 154.96 ± 8.41 μM) DPP-IV inhibitory capacities, and their inhibitory mechanisms were further explored by molecular docking. Our study showed that the formation of strong non-bonding interactions with the core residues from the pocket of DPP-IV (such as ARG358, PHE357, GLU205, TYR662, TYR547, and TYR666) might primarily account for the DPP-IV inhibitory activity of two identified peptides. Overall, the two novel DPP-IV inhibitory peptides rapidly identified in this study can be used as functional food ingredients for the control of diabetes.
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Affiliation(s)
- Yulong Wu
- School of Public Health, Hangzhou Normal University, Hangzhou 311121, China; (Y.W.); (R.Z.)
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
| | - Jin Zhang
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
| | - Ruikai Zhu
- School of Public Health, Hangzhou Normal University, Hangzhou 311121, China; (Y.W.); (R.Z.)
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
| | - Hong Zhang
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
- College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710062, China
| | - Dapeng Li
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
- College of Life Science, Yantai University, Yantai 264005, China;
| | - Huanhuan Li
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
| | - Honggang Tang
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
| | - Lihong Chen
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
| | - Xinyan Peng
- College of Life Science, Yantai University, Yantai 264005, China;
| | - Xianrong Xu
- School of Public Health, Hangzhou Normal University, Hangzhou 311121, China; (Y.W.); (R.Z.)
| | - Ke Zhao
- Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; (J.Z.); (H.Z.); (D.L.); (H.L.); (H.T.); (L.C.)
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6
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Zhong W, Wang Q, Shen X. Quinoa protein/polysaccharide electrostatic complex stabilized vegan high internal phase emulsions for 3D printing: Role of complex state and gelling-type polysaccharides. Food Chem 2024; 434:137447. [PMID: 37716139 DOI: 10.1016/j.foodchem.2023.137447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/24/2023] [Accepted: 09/08/2023] [Indexed: 09/18/2023]
Abstract
Rational selection of the complex state and polysaccharide type may enhance the performance of electrostatic complex stabilized high internal phase emulsions (HIPEs). Herein, quinoa proteins were extracted to form electrostatic complexes separately with three gelling-type polysaccharides to fabricate HIPEs. Results showed that the complexes in soluble state (pH 8.4-5.6) exhibited moderate size, high negative potential and enhanced protein hydrophobicity, and could achieve HIPEs with 84% oil phase upon acidification to pH 6 at low concentrations. Its excellent interfacial structure enhanced stability during heating, freeze-thawing and long-term storage, and exhibited promising 3D printing potential. Furthermore, the complexes formed by sulfated polysaccharide carrageenan had higher amphiphilicity than those formed by carboxylated polysaccharide pectin or sodium alginate, and their stabilized HIPE had preferable droplet size, stability and 3D printing resolution than its counterparts. This study may provide new insights into the performance enhancement of protein/polysaccharide electrostatic complex stabilized HIPEs.
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Affiliation(s)
- Weigang Zhong
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Qi Wang
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China
| | - Xue Shen
- Department of Food Science, College of Food Science and Engineering, Jilin University, Changchun, Jilin 130062, China.
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7
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Wang L, Wu S, Chen T, Xiong L, Wang F, Song H, Zhou J, Wei S, Ren B, Shen X. A quinoa peptide protects impaired mucus barriers in colitis mice by inhibiting NF-κB-TRPV1 signaling and regulating the gut microbiota. Food Funct 2024; 15:1223-1236. [PMID: 38226896 DOI: 10.1039/d3fo04905a] [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: 01/17/2024]
Abstract
Inflammatory bowel diseases (IBD) are chronic inflammatory conditions that lead to the disruption of the colonic mucus barrier. Quinoa has a well-balanced profile of essential amino acids and exhibits excellent anti-inflammatory effects. We recently explored the beneficial effects and relevant mechanisms of a novel quinoa peptide TPGAFF on impaired mucus barriers in mice with chemically induced colitis. Our findings demonstrated that TPGAFF, administered in low and high doses for 28 days, effectively attenuated the pathological phenotype and reduced intestinal permeability in colitis mice. TPGAFF demonstrated its protective abilities by restoring the impaired mucus barrier, inhibiting the activation of inflammatory signaling and reducing inflammatory cytokine levels. Moreover, TPGAFF positively influenced the composition of the gut microbiota by reducing inflammation-related microbes. Additionally, TPGAFF inhibited the activation of TRPV1 nociceptor and decreased the levels of neuropeptides. Conclusively, our results indicated that oral administration of TPGAFF may be an optional approach for the treatment of mucus barrier damage.
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Affiliation(s)
- Luanfeng Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Shufeng Wu
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Tong Chen
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Ling Xiong
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Fang Wang
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Haizhao Song
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Jianxin Zhou
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
| | - Shixiang Wei
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Bo Ren
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China.
| | - Xinchun Shen
- College of Food Science and Engineering, Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and Safety, Nanjing 210023, China.
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8
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Agustia FC, Supriyadi, Murdiati A, Indrati R. Formation of dipeptidyl peptidase-IV (DPP-IV) inhibitory peptides from Jack Bean ( Canavalia ensiformis (L.) DC.) sprout in simulated digestion. Food Sci Biotechnol 2024; 33:645-655. [PMID: 38274189 PMCID: PMC10805686 DOI: 10.1007/s10068-023-01343-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/04/2023] [Accepted: 05/15/2023] [Indexed: 01/27/2024] Open
Abstract
Bean sprouts are potential plant proteins that produce DPP-IV inhibitory peptides. These peptides must be stable and active in the brush border membrane of the small intestine to inhibit DPP-IV. The purpose of this research is to evaluate the DPP-IV inhibitory activity of jack bean sprouts using pepsin-pancreatin during simulated digestion, as well as the absorption of these peptides through the everted gut sac method. The results showed that after 180 min of digestion simulation, the Mw < 1 kDa peptide fraction of jack bean hydrolysate, which germinated for 60 h (HG60), had the highest inhibitory activity. The duodenum absorbs most of the peptides with inhibitory activity of 61.77%, which is slightly lower than activity after digestion (62.19%). These outcomes suggest that the DPP-IV inhibitory activity of HG60 can be maintained after digestion and absorption. Two novel peptides KAVGDPI and QGVVLRP identified after absorption contain crucial amino acids confirming as DPP-IV inhibitor. Supplementary Information The online version contains supplementary material available at 10.1007/s10068-023-01343-9.
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Affiliation(s)
- Friska Citra Agustia
- Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
- Department of Nutrition Science, Faculty of Health Sciences, Universitas Jenderal Soedirman, Purwokerto, 53122 Indonesia
| | - Supriyadi
- Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
| | - Agnes Murdiati
- Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
| | - Retno Indrati
- Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, 55281 Indonesia
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9
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Sivaraman SA, Sabareesh V. An Update on Dipeptidyl Peptidase-IV Inhibiting Peptides. Curr Protein Pept Sci 2024; 25:267-285. [PMID: 38173201 DOI: 10.2174/0113892037287976231212104607] [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: 10/21/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024]
Abstract
Diabetes is a chronic metabolic disorder. According to the International Diabetes Federation, about 537 million people are living with diabetes. The two types of diabetes are type 1 diabetes mellitus (T1DM) and type 2 diabetes mellitus (T2DM), among which the population affected by T2DM is relatively higher. A major reason for T2DM is that insulin stimulation is hampered due to the inactivation of incretin hormones. Dipeptidyl peptidase-IV (DPP-IV) is a serine protease that is directly involved in the inactivation of incretin hormones, e.g., glucagon-like peptide-1 (GLP-1). Therefore, the inhibition of DPP-IV can be a promising method for managing T2DM, in addition to other enzyme inhibition strategies, such as inhibition of α-amylase and α -glucosidase. Currently, about 12 different gliptin drugs are available in the market that inhibit DPP-IV in a dose-dependent manner. Instead of gliptins, 'peptides' can also be employed as an alternative and promising way to inhibit DPP-IV. Peptide inhibitors of DPP-IV have been identified from various plants and animals. Chemically synthesized peptides have also been experimented for inhibiting DPP-IV. Most peptides have been analysed by biochemical assays, whereas some in vitro assays have also been reported. Molecular docking analysis has been applied to comprehend the mechanism of inhibition. In this review, certain aspects of natural as well as synthetic peptides are described that have been proven to inhibit DPP-IV.
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Affiliation(s)
- Sachithanantham Annapoorani Sivaraman
- Centre for Bio-Separation Technology (CBST), Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632 014, India
- School of Bio Sciences and Technology (SBST), Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632 014, India
| | - Varatharajan Sabareesh
- Centre for Bio-Separation Technology (CBST), Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632 014, India
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10
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Li Y, Zhang Y, Tuo Y, You H, Li J, Wang L, Liu X, Ding L. Quinoa protein and its hydrolysate ameliorated DSS-induced colitis in mice by modulating intestinal microbiota and inhibiting inflammatory response. Int J Biol Macromol 2023; 253:127588. [PMID: 37875182 DOI: 10.1016/j.ijbiomac.2023.127588] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Revised: 10/06/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023]
Abstract
The objective of this study was to investigate the protective effects of quinoa protein (QPro) and its derived peptides (QPep) in dextran sulfate sodium (DSS)-induced colitis in mice. The results demonstrated that oral administration of QPro and QPep significantly alleviated colitis symptoms, including diarrhea, abdominal pain, bloody stools, weight loss, as well as reduced colonic shortening, inflammatory factor release, and intestinal barrier injury. Short-chain fatty acids (SCFAs) production rose as QPro and QPep modulated the composition of the intestinal microbiota. Western blotting results revealed that QPro and QPep also suppressed TLR4 levels and inhibited IκB-α and NF-κB phosphorylation in colon tissue, implying that the TLR4/IκB-α/NF-κB signaling pathway may be involved in the amelioration of QPro and QPep in DSS-induced colitis. These results indicate the potential of quinoa protein and its hydrolysate to serve as bioactive components in functional diets for intestinal health and to significantly lower intestinal inflammation.
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Affiliation(s)
- Yiju Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuyu Zhang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yuanrong Tuo
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Haixi You
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jialu Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Liying Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Long Ding
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China.
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11
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Li Y, Feng Z, Wu T, You H, Wang W, Liu X, Ding L. Quinoa Peptides Alleviate Obesity in Mice Induced by a High-Fat Diet via Regulating of the PPAR-α/γ Signaling Pathway and Gut Microbiota. Mol Nutr Food Res 2023; 67:e2300258. [PMID: 37759395 DOI: 10.1002/mnfr.202300258] [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: 04/25/2023] [Revised: 08/21/2023] [Indexed: 09/29/2023]
Abstract
SCOPE The obesity epidemic continues to be a major global public health threat with limited effective treatments. Peptides are a group of promising bioactive molecules. Both in vivo and in vitro studies have demonstrated that quinoa has potential prebiotic benefits. Thus, the present study aims to investigate the influence of quinoa peptides (QP) consumption on obesity and its underlying mechanisms in high-fat diet (HFD)-induced mice. METHODS AND RESULTS QP (1000 mg kg-1 day-1 ) is administered to HFD mice for 8 weeks, and is found to significantly reduce the body weight, and plasma levels of triacylglycerol (TG) and total cholesterol (TC) compare to the HFD group. In addition, QP significantly decreases lipid accumulation in the liver caused by HFD. The liver transcriptome analysis shows that the alleviation of QP on obesity is related to the PPAR signaling pathway. QP upregulates the expressions of PPAR-α and its related genes and downregulates the expressions of PPAR-γ and its downstream genes. Furthermore, QP remodels the community composition of gut microbiota by lowering the ratio of Firmicutes c Bacteroidetes (F/B). CONCLUSION These findings suggest that QP consumption alleviates HFD-induced obesity by regulating the PPAR-α/γ signaling pathway in the liver and community structure of gut microbiota.
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Affiliation(s)
- Yiju Li
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Zhi Feng
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Tianliang Wu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Haixi You
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Wei Wang
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Long Ding
- College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, 712100, China
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12
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Hong Z, Shi C, Hu X, Chen J, Li T, Zhang L, Bai Y, Dai J, Sheng J, Xie J, Tian Y. Walnut Protein Peptides Ameliorate DSS-Induced Ulcerative Colitis Damage in Mice: An in Silico Analysis and in Vivo Investigation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:15604-15619. [PMID: 37815395 DOI: 10.1021/acs.jafc.3c04220] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Walnut (Juglans regia L.) is a food with food-medicine homology, whose derived protein peptides have been shown to have anti-inflammatory activity in vitro. However, the effects and mechanisms of walnut protein peptides on ulcerative colitis (UC) in vivo have not been systematically and thoroughly investigated. In this study, we applied virtual screening and network pharmacology screening of bioactive peptides to obtain three novel WPPs (SHTLP, HYNLN, and LGTYP) that may alleviate UC through TLR4-MAPK signaling. In vivo studies have shown that WPPs improve intestinal mucosal barrier dysfunction and reduce inflammation by inhibiting activation of the TLR4-MAPK pathway. In addition, WPPs restore intestinal microbial homeostasis by reducing harmful bacteria (Helicobacter and Bacteroides) and increasing the relative abundance of beneficial bacteria (Candidatus_Saccharimonas). Our study showed that the WPPs obtained by virtual screening were effective in ameliorating colitis, which has important implications for future screening of bioactive peptides from medicinal food homologues as drugs or dietary supplements.
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Affiliation(s)
- Zishan Hong
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Key Laboratory of Precision Nutrition and Personalized Food Manufacturing, Yunnan Agricultural University, Kunming 650201, China
| | - Chongying Shi
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming 650201, China
| | - Xia Hu
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming 650201, China
| | - Jinlian Chen
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming 650201, China
| | - Tingting Li
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming 650201, China
| | - Li Zhang
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming 650201, China
| | - Yuying Bai
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Engineering Research Center for Edible and Medicinal Homologous Functional Food, Yunnan Agricultural University, Kunming 650201, China
| | - Jingjing Dai
- School of Tea and Coffee, Puer University, Puer 665000, China
| | - Jun Sheng
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Key Laboratory of Pu-er Tea Science, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
| | - Jing Xie
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Key Laboratory of Precision Nutrition and Personalized Food Manufacturing, Yunnan Agricultural University, Kunming 650201, China
| | - Yang Tian
- Engineering Research Center of Development and Utilization of Food and Drug Homologous Resources, Ministry of Education, Yunnan Agricultural University, Kunming 650201, China
- Yunnan Provincial Key Laboratory of Precision Nutrition and Personalized Food Manufacturing, Yunnan Agricultural University, Kunming 650201, China
- School of Tea and Coffee, Puer University, Puer 665000, China
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13
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Li Y, Wang W, Wu T, You H, Liu H, Liu X, Wang L, Ding L. Preparation of quinoa protein with ultrasound pretreatment and its effects on the physicochemical properties, structural and digestion characterizations. Int J Biol Macromol 2023; 238:124202. [PMID: 36966857 DOI: 10.1016/j.ijbiomac.2023.124202] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 03/16/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023]
Abstract
This study aimed to investigate the effects of ultrasound pretreatment on the yield and the physicochemical properties, structural and digestion characterizations of quinoa protein (QP). Results showed that under the conditions of ultrasonic power density of 0.64 W/mL, ultrasonication time of 33 min, and the liquid-solid ratio of 24 mL/g, the highest yield of QP at 68.403 % was obtained, which was significantly higher than that without ultrasound pretreatment at 51.26 ± 1.76 % (P < 0.05). Ultrasound pretreatment decreased the average particle size and ζ-potential but increased the hydrophobicity of QP (P < 0.05). However, no significant protein degradation and secondary structure changes of QP by ultrasound pretreatment were observed. In addition, ultrasound pretreatment slightly improved the in vitro digestibility of QP and reduced the dipeptidyl peptidase IV (DPP-IV) inhibitory activity of the hydrolysate of QP by in vitro digestion. Overall, this work demonstrates that ultrasound-assisted extraction is appropriate for improving the extraction efficiency of QP.
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14
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Karami Z, Butkinaree C, Somsong P, Duangmal K. Assessment of the DPP‐IV inhibitory potential of mung bean and adzuki bean protein hydrolysates using enzymatic hydrolysis process: specificity of peptidases and novel peptides. Int J Food Sci Technol 2023. [DOI: 10.1111/ijfs.16422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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15
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Fan X, Ma X, Maimaitiyiming R, Aihaiti A, Yang J, Li X, Wang X, Pang G, Liu X, Qiu C, Abra R, Wang L. Study on the preparation process of quinoa anti-hypertensive peptide and its stability. Front Nutr 2023; 9:1119042. [PMID: 36742006 PMCID: PMC9889649 DOI: 10.3389/fnut.2022.1119042] [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: 12/08/2022] [Accepted: 12/31/2022] [Indexed: 01/20/2023] Open
Abstract
Quinoa seeds are a food resource rich in protein, vitamins, minerals, and other functional components such as polyphenols, polysaccharides, and saponins. The seeds have become favored by modern consumers due to being gluten-free and featuring a high protein content. This study focused on the preparation of quinoa peptides by short-time enzymatic-assisted fermentation. Quinoa flour (QF) was mixed with water in a certain ratio before being enzymatically digested with 0.5% amylase and 0.1% lipase for 6 h. Then, 16 bacterial taxa were used for fermentation, respectively. The peptide content in the resulting fermentation broths were determined by the biuret method. The dominant taxon was then identified and the peptide content, amino acid distribution, and molecular weight distribution of the prepared quinoa peptides were analyzed. Further, the temperature, pH, metal ions, organic solvents, ion concentration, and anti-enzyme stability of the quinoa anti-hypertensive peptides of different molecular weights after fermentation with the dominant taxon were investigated. Finally, the inhibitory activity of fermented quinoa peptides on bacteria was studied. The results show that the peptide content of the fermentation broth reached 58.72 ± 1.3% at 40 h of fermentation with Lactobacillus paracasei and the molecular weights of the hydrolyzed quinoa peptides were mainly distributed below 2 kDa by polyacrylamide gel. The Angiotensin Converting Enzyme (ACE) inhibition and peptide retention of the 0-3 kDa quinoa peptides were screened to be high and stable. At the same time, the inhibitory activity of quinoa peptide after fermentation on E. coli was obvious. This study provides a theoretical basis for further research on quinoa peptide and its application in industrial production, and also lays a foundation for the later application of polypeptides in new food and chemical products.
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Affiliation(s)
- Xing Fan
- College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Xuemei Ma
- College of Life Science and Technology, Xinjiang University, Urumqi, China
| | | | | | - Jiangyong Yang
- College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Xianai Li
- Xinjiang Arman Food Group Co. Ltd., Urumqi, China
| | - Xiaoyun Wang
- Xinjiang Arman Food Group Co. Ltd., Urumqi, China
| | - Guangxian Pang
- Shenxin Science and Technology Cooperation Base Co. Ltd., Urumqi, China
| | - Xiaolu Liu
- College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Chenggong Qiu
- College of Life Science and Technology, Xinjiang University, Urumqi, China
| | - Redili Abra
- Xinjiang Arman Food Group Co. Ltd., Urumqi, China,*Correspondence: Liang Wang ✉
| | - Liang Wang
- College of Life Science and Technology, Xinjiang University, Urumqi, China,Redili Abra ✉
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16
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A Proteomics Data Mining Strategy for the Identification of Quinoa Grain Proteins with Potential Immunonutritional Bioactivities. Foods 2023; 12:foods12020390. [PMID: 36673481 PMCID: PMC9858122 DOI: 10.3390/foods12020390] [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: 12/21/2022] [Revised: 01/10/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Quinoa proteins are attracting global interest for their wide amino acid profile and as a promising source for the development of biomedical treatments, including those against immune-mediated diseases. However, information about the bioactivity of quinoa proteins is scarce. In this study, a quinoa grain proteome map obtained by label-free mass spectrometry-based shotgun proteomics was investigated for the identification of quinoa grain proteins with potential immunonutritional bioactivities, including those related to cancer. After carefully examining the sequence similarities of the 1211 identified quinoa grain proteins against already described bioactive proteins from other plant organisms, 71, 48, and 3 of them were classified as antimicrobial peptides (AMPs), oxidative stress induced peptides (OSIPs), and serine-type protease inhibitors (STPIs), respectively, suggesting their potential as immunomodulatory, anti-inflammatory, and anticancer agents. In addition, data interpretation using Venn diagrams, heat maps, and scatterplots revealed proteome similarities and differences with respect to the AMPs, OSIPs, and STPIs, and the most relevant bioactive proteins in the predominant commercial quinoa grains (i.e., black, red, white (from Peru), and royal (white from Bolivia)). The presented proteomics data mining strategy allows easy screening for potentially relevant quinoa grain proteins and commercial classes for immunonutrition, as a basis for future bioactivity testing.
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17
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Zhu Z, Guo H, Xu Y, Pius Bassey A, Ali A, Huang M, Huang J. ACE Inhibitory Peptides Derived from Muscovy Duck ( Cairina moschata) Plasma. Foods 2022; 12:foods12010050. [PMID: 36613266 PMCID: PMC9818667 DOI: 10.3390/foods12010050] [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: 11/22/2022] [Revised: 12/17/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
In this study, angiotensin-converting enzyme inhibitory peptides (ACE-IPs) derived from Muscovy duck (Cairina moschata) plasma hydrolysate (MDPH) were investigated. According to the general research protocol for bioactive peptides, the crude ACE-IPs of Muscovy duck plasma were separated and purified by ultrafiltration, gel chromatography and reversed-phase high-performance liquid chromatography (RP-HPLC). Then the components with the highest ACE inhibition potential were selected for identification. Finally, the inhibition mechanism was explored by molecular docking and in silico simulated digestion. A total of 121 peptides was detected, and five were screened for synthesis verification and molecular docking. The peptide VALSSLRP revealed high ACE inhibitory activity (91.67 ± 0.73%) because this peptide bound tightly to the S1' pocket and formed 3 hydrogen bonds. Meaningfully, this work provides some new information about the generation of ACE-IPs derived from duck blood plasma.
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Affiliation(s)
- Zongshuai Zhu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Haoyu Guo
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Yan Xu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Anthony Pius Bassey
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ahtisham Ali
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ming Huang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Jichao Huang
- College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
- Correspondence:
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18
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Dang J, Du S, Wang L. Screening and Identification of Novel Soluble Epoxide Hydrolase Inhibitors from Corn Gluten Peptides. Foods 2022; 11:foods11223695. [PMID: 36429288 PMCID: PMC9689838 DOI: 10.3390/foods11223695] [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: 10/10/2022] [Revised: 11/13/2022] [Accepted: 11/16/2022] [Indexed: 11/19/2022] Open
Abstract
The objective of this study was to investigate the soluble epoxide hydrolase (sEH) inhibitory properties of corn gluten peptides. In total, 400 dipeptides and 8000 tripeptides were first virtually screened by molecular docking and 30 potential sEH inhibitory peptides were selected. Among them, WEY, WWY, WYW, YFW, and YFY showed the highest sEH inhibitory activities with IC50 values of 55.41 ± 1.55, 68.80 ± 7.72, 70.66 ± 9.90, 96.00 ± 7.5, and 94.06 ± 12.86 μM, respectively. These five peptides all behaved as mixed-type inhibitors and were predicted to form hydrogen bond interactions mainly with Asp333, a key residue located in the catalytic active site of sEH. Moreover, it was found that the corn gluten hydrolysates of Alcalase, Flavourzyme, pepsin and pancreatin all exhibited high sEH inhibitory activities, with IC50 values of 1.07 ± 0.08, 1.19 ± 0.24, and 1.46 ± 0.31 mg/mL, respectively. In addition, the sEH inhibitory peptides WYW, YFW, and YFY were successfully identified from the corn gluten hydrolysates by Alcalase using nano-LC-MS/MS. This study demonstrated the sEH inhibitory capacity of peptides for the first time and corn gluten might be a promising food protein source for discovering novel natural sEH inhibitory peptides.
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Affiliation(s)
- Jiamin Dang
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
| | - Shuangkui Du
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
- Engineering Research Center of Grain and Oil Functionalized Processing, Universities of Shaanxi Province, Xianyang 712100, China
| | - Liying Wang
- College of Food Science and Engineering, Northwest A&F University, Xianyang 712100, China
- Engineering Research Center of Grain and Oil Functionalized Processing, Universities of Shaanxi Province, Xianyang 712100, China
- Correspondence: ; Tel.: +86-029-87880246
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19
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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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