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Zhang L, Miao J, Guo J, Liu J, Xia Z, Chen B, Ma F, Cao Y. Two Novel Angiotensin I-Converting Enzyme (ACE) Inhibitory Peptides from Rice ( Oryza sativa L.) Bran Protein. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:4153-4162. [PMID: 36812450 DOI: 10.1021/acs.jafc.2c07270] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
To realize the high-value utilization of rice byproducts, the rice bran protein hydrolysate was separated and purified by ultrafiltration and reversed-phase high-performance liquid chromatography (RP-HPLC), then the sequences of peptides were identified by liquid chromatography with tandem mass spectrometry (LC-MS/MS), and their molecular docking analysis and activities in vitro and in the cell were carried out. Two novel peptides FDGSPVGY (840.3654 Da) and VFDGVLRPGQ (1086.582 Da) were obtained with IC50 values of 0.079 mg/mL (94.05 μM) and 0.093 mg/mL (85.59 μM) on angiotensin I-converting enzyme (ACE) inhibitory activity in vitro, respectively. Molecular docking results showed that two peptides interacted with ACE receptor protein through hydrogen bonding, hydrophobic interactions, etc. Through the EA.hy926 cells, it was found that FDGSPVGY and VFDGVLRPGQ could promote the release of nitric oxide (NO) and reduce the content of ET-1 to achieve the effect of antihypertension. In conclusion, the peptides from rice bran protein exhibited significant antihypertension activity and may be expected to realize the high-value utilization of rice byproducts.
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Affiliation(s)
- Lingyu Zhang
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jianyin Miao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Junbin Guo
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Jie Liu
- China-Canada Joint Lab of Food Nutrition and Health, Beijing Technology and Business University (BTBU), Beijing 100048, China
| | - Zhen Xia
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Bingbing Chen
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Feng Ma
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
| | - Yong Cao
- Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou, Guangdong 510642, China
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Effect of Different Proportions of Phenolics on Antioxidant Potential: Pointers for Bioactive Synergy/Antagonism in Foods and Nutraceuticals. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES, INDIA SECTION B: BIOLOGICAL SCIENCES 2022; 92:939-946. [PMID: 35935740 PMCID: PMC9340677 DOI: 10.1007/s40011-022-01396-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 12/17/2021] [Accepted: 05/10/2022] [Indexed: 11/14/2022]
Abstract
Phenolic compounds include a broad variety of antioxidant plant substances such as flavonoids that have in common an aromatic ring with one or more hydroxyl groups. Nutraceuticals and health food supplements are designed from flavonoids as well as pure phytochemicals, often in isolation. However, studies on synergistic and antagonistic effects of such compounds are relatively few. In the current study, dual combinations prepared from five phenolic compounds (flavonoid and non-flavonoid) including rutin hydrate, quercetin dihydrate, hydroquinone, kaempferol, and resveratrol were tested for their antioxidant activities using DPPH· radical scavenging assay. The synergistic antioxidant interactions among these phenolics were evaluated by comparing their individual antioxidant effect with that obtained by a mixture of two compounds in various ratios. Quercetin dihydrate showed the highest antioxidant activity. Many combinations were found statistically synergistic in particular ratios. Rutin hydrate and resveratrol showed maximum synergy (1:1, 2:1, and 3:1 ratio). Antagonistic interactions were also identified. The results of this study could be used by industries to develop more potent nutraceutical supplements or guide the researchers for further bioactivity validation using in vivo assays.
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Antihypertensive Effects of IGTGIPGIW Peptide Purified from Hippocampus abdominalis: p-eNOS and p-AKT Stimulation in EA.hy926 Cells and Lowering of Blood Pressure in SHR Model. Mar Drugs 2022; 20:md20060354. [PMID: 35736156 PMCID: PMC9227393 DOI: 10.3390/md20060354] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was to assess the potential hypertensive effects of the IGTGIPGIW peptide purified from Hippocampus abdominalis alcalase hydrolysate (HA) for application in the functional food industry. We investigated the antihypertensive effects of IGTGIPGIW in vitro by assessing nitric oxide production in EA.hy926 endothelial cells, which is a major factor affecting vasorelaxation. The potential vasorelaxation effect was evaluated using 4-amino-5-methylamino-2′,7′-difluorofluorescein diacetate, a fluorescent stain. IGTGIPGIW significantly increased the expression of endothelial-derived relaxing factors, including endothelial nitric oxide synthase and protein kinase B, in EA.hy926 cells. Furthermore, oral administration of IGTGIPGIW significantly lowered the systolic blood pressure (183.60 ± 1.34 mmHg) and rapidly recovered the diastolic blood pressure (143.50 ± 5.55 mmHg) in the spontaneously hypertensive rat model in vivo. Our results demonstrate the antihypertensive activity of the IGTGIPGIW peptide purified from H. abdominalis and indicate its suitability for application in the functional food industry.
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SANDATE-FLORES L, MÉNDEZ-ZAMORA G, MORALES-CELAYA MF, LARA-REYES JA, AGUIRRE-ARZOLA VE, GUTIÉRREZ-DIEZ A, TORRES-CASTILLO JA, SINAGAWA-GARCÍA SR. Biofunctional properties of the bioactive peptide from protein isolates of jiotilla (Escontria chiotilla) and pitaya (Stenocereus pruinosus) seeds. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.57922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Huang Y, Jia F, Zhao J, Hou Y, Hu SQ. Novel ACE Inhibitory Peptides Derived from Yeast Hydrolysates: Screening, Inhibition Mechanisms and Effects on HUVECs. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:2412-2421. [PMID: 33593053 DOI: 10.1021/acs.jafc.0c06053] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The antihypertensive activity of yeast hydrolysate (YH) was confirmed in our previous study. However, the critical peptides in YH and the underlying mechanisms have not been fully elucidated. This study aimed to explore the angiotensin-converting enzyme (ACE) inhibitory peptides in YH and illustrate their molecular and cellular mechanisms. The potential of YH-derived peptides was evaluated by in silico methods, followed by in vitro verification. A new competitive ACE inhibitory peptide, VIPVPFF (V7), with an IC50 value of 10.27 μM, was screened. YH and V7 increased the nitric oxide (NO) levels, upregulated GUCY1A1 gene expression (approximately 15-fold), and functioned in several hypertension-related pathways in human umbilical vein endothelial cells (HUVECs). This study revealed the antihypertensive mechanisms of YH and V7, laying down a theoretical basis for their application.
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Affiliation(s)
- Yanbo Huang
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Sciences and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Feng Jia
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Sciences and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Jinsong Zhao
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Sciences and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Yi Hou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
| | - Song-Qing Hu
- Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), School of Food Sciences and Engineering, South China University of Technology, Guangzhou 510641, Guangdong, China
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Nam SH, Cho HS, Jeong H, Lee BB, Cho YS, Rameeza F, Eun JB. Physiochemical properties, dietary fibers, and functional characterization of three yuzu cultivars at five harvesting times. Food Sci Biotechnol 2021; 30:117-127. [PMID: 33552623 DOI: 10.1007/s10068-020-00850-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Revised: 11/03/2020] [Accepted: 11/17/2020] [Indexed: 11/30/2022] Open
Abstract
This research focused on physiochemical and nutritional properties and functional characterization of three cultivars of yuzu-Native, Tadanishiki yuzu, and Namhae1-during different seasons. According to the cultivar and harvest time, yuzu cultivars were analyzed for free sugar, dietary fiber, hesperidin, naringin, and flavonoid content as well as antioxidant and antihypertensive activity. During November, Namhae1 exhibited the highest fruit weight, °Brix/acidity ratio, and total dietary fiber content. Tadanishiki contained the highest fructose and sucrose levels, pectin and cellulose contents, and soluble dietary fiber. Tadanishiki also had the highest hesperidin content in October, while the naringin content and antioxidant activity were the greatest in November. Antihypertensive activity was also the strongest for Tadanishiki, which was picked in October and November. These results indicated that Tadanishiki in October or November was the best for consumption or favorable processing because of its excellent product quality and high levels of nutritional and functional compounds.
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Affiliation(s)
- Seung-Hee Nam
- Institute of Agricultural Science and Technology, Chonnam National University, Gwangju, 61186 Korea.,Department of Food Science and Technology, Chonnam National University, Gwangju, 61186 Korea
| | - Hye-Sung Cho
- Fruit Research Institute of Jeollanamdo Agricultural Research and Extension Services, Haenam, 59021 Jeonnam Korea
| | - Hana Jeong
- Institute of Agricultural Science and Technology, Chonnam National University, Gwangju, 61186 Korea
| | - Bo-Bae Lee
- Fruit Research Institute of Jeollanamdo Agricultural Research and Extension Services, Haenam, 59021 Jeonnam Korea
| | - Youn-Sup Cho
- Fruit Research Institute of Jeollanamdo Agricultural Research and Extension Services, Haenam, 59021 Jeonnam Korea
| | - Fatima Rameeza
- Department of Food Science and Technology, Chonnam National University, Gwangju, 61186 Korea
| | - Jong-Bang Eun
- Department of Food Science and Technology, Chonnam National University, Gwangju, 61186 Korea
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Lee SM, Kim HS, Park HJ, Oh KY, Kim JY, Lee SH, Jang JS, Lee MH. Comparison of Antioxidant Properties of Evening Primrose Seeds by Different Processing Methods, and Physiological Properties of Evening Primrose Seed Powder. Prev Nutr Food Sci 2020; 25:422-431. [PMID: 33505936 PMCID: PMC7813601 DOI: 10.3746/pnf.2020.25.4.422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 10/15/2020] [Indexed: 11/22/2022] Open
Abstract
This study proposes the processing method that could maximize the functional properties of evening primrose seeds (EPS) and its various nutritional components. EPS can be prepared by different methods, such as being left raw, roasting, steaming, and powdering. Processing of EPS to create EPS powder (EPSP) resulted in higher levels of vitamin E, fatty acids, total phenolic contents, and antioxidant activity, compared with the other processing methods. Also, EPSP maintained lipid peroxidation inhibitory activity for 49 days. In particular, the EPSP ethyl acetate (EtOAc) fraction exhibited high antioxidant, antidiabetic, and angiotensin I-converting enzyme inhibitory activities. The EPSP ethyl acetate fraction showed a high cytoprotective effect against H2O2-induced cell damage in both RAW264.7 and EA.hy926 cells. In addition, the EtOAc fraction showed anti-inflammatory activity by the inhibitory activity of nitric oxide (NO) in RAW264.7 cells, and antihypertensive activity by the activity of NO in EA.hy926 cells. These results suggest that EPSP could be useful as a food ingredient that assists the prevention of various diseases caused by oxidative stress.
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Affiliation(s)
- Song Min Lee
- Food Research Center, Angel Co., Ltd., Busan 46988, Korea
| | - Hee Sook Kim
- Food Research Center, Angel Co., Ltd., Busan 46988, Korea
| | - Hye-Jung Park
- Food Research Center, Angel Co., Ltd., Busan 46988, Korea
| | - Ka-Yoon Oh
- Food Research Center, Angel Co., Ltd., Busan 46988, Korea
| | - Ji-Youn Kim
- Food Research Center, Angel Co., Ltd., Busan 46988, Korea
| | - Sang-Hyeon Lee
- Department of Pharmaceutical Engineering, Silla University, Busan 46958, Korea
| | - Jeong Su Jang
- Food Research Center, Angel Co., Ltd., Busan 46988, Korea
| | - Mun Hyon Lee
- Food Research Center, Angel Co., Ltd., Busan 46988, Korea
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Ngamsuk S, Huang TC, Hsu JL. ACE Inhibitory Activity and Molecular Docking of Gac Seed Protein Hydrolysate Purified by HILIC and RP-HPLC. Molecules 2020; 25:E4635. [PMID: 33053699 PMCID: PMC7587174 DOI: 10.3390/molecules25204635] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/24/2020] [Accepted: 10/09/2020] [Indexed: 01/27/2023] Open
Abstract
Gac (Momordica cochinchinensis Spreng.) seed proteins (GSPs) hydrolysate was investigated for angiotensin I-converting enzyme (ACE) inhibitory activities. GSPs were hydrolyzed under simulated gastrointestinal digestion using a combination of enzymes, including pepsin, trypsin, and chymotrypsin. The screening of ACE inhibitory peptides from GSPs hydrolysate was performed using two sequential bioassay-guided fractionations, namely hydrophilic interaction liquid chromatography (HILIC) and reversed-phase high-performance liquid chromatography (RP-HPLC). Then, the peptides in the fraction with the highest ACE inhibitory activity were identified by LC-MS/MS. The flow-through (FT) fraction showed the most potent ACE inhibitory activity when HILIC fractionation was performed. This fraction was further separated using RP-HPLC, and the result indicated that fraction 8 (RP-F8) showed the highest ACE inhibitory activity. In the HILIC-FT/RP-F8 fraction, 14 peptides were identified using LC-MS/MS analysis coupled with de novo sequencing. These amino acid chains had not been recorded previously and their ACE inhibitory activities were analyzed in silico using the BIOPEP database. One fragment with the amino acid sequence of ALVY showed a significant ACE inhibitory activity (7.03 ± 0.09 µM). The Lineweaver-Burk plot indicated that ALVY is a competitive inhibitor. The inhibition mechanism of ALVY against ACE was further rationalized through the molecular docking simulation, which revealed that the ACE inhibitory activities of ALVY is due to interaction with the S1 (Ala354, Tyr523) and the S2 (His353, His513) pockets of ACE. Bibliographic survey allowed the identification of similarities between peptides reported as in gac fruit and other proteins. These results suggest that gac seed proteins hydrolysate can be used as a potential nutraceutical with inhibitory activity against ACE.
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Affiliation(s)
- Samuchaya Ngamsuk
- Department of Tropical Agriculture and International Cooperation, National Pingtung University of Science and Technology, 1 Shuefu Road, Neipu, Pingtung 91201, Taiwan
| | - Tzou-Chi Huang
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, 1 Shuefu Road, Neipu, Pingtung 91201, Taiwan;
| | - Jue-Liang Hsu
- Department of Biological Science and Technology, National Pingtung University of Science and Technology, 1 Shuefu Road, Neipu, Pingtung 91201, Taiwan;
- International Master’s Degree Program in Food Science, National Pingtung University of Science and Technology, 1 Shuefu Road, Neipu, Pingtung 91201, Taiwan
- Research Center for Animal Biologics, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
- Research Center for Tropic Agriculture, National Pingtung University of Science and Technology, Pingtung 91201, Taiwan
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