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Liu A, Yang L, Yang Y, Lei S, Li Z, He P. Simultaneous detection of glycinin and β-conglycinin in processed soybean products by high-performance liquid chromatography-tandem mass spectrometry with stable isotope-labeled standard peptides. Food Res Int 2023; 173:113387. [PMID: 37803724 DOI: 10.1016/j.foodres.2023.113387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 10/08/2023]
Abstract
Glycinin and β-conglycinin are the two main allergic proteins in soybean. Due to their complex structures and lack of protein standards, it is difficult to achieve quantitative determination of these proteins in soybeans. In this study, an HPLC-MS/MS method was developed for the simultaneous determination of five subunits of glycinin (G1, G2, G3, G4, and G5) and three subunits of β-conglycinin (α, α', and β) in processed soybean products based on 8 specific peptides and their stable isotope-labeled peptides. Here, each specific peptide was derived from one of the above 8 subunits. When soy protein was extracted and digested with trypsin, 8 specific peptides, and corresponding stable isotope-labeled peptides were analyzed by HPLC-MS/MS. The linear range for the specific peptides was between 3.2 and 1000 ng/mL (R2 > 0.9955). The recoveries of added peptides ranged from 83.4% to 117.8%, and the intra-day precisions (% CV) were below 17.4%. The limit of quantification of each subunit of glycinin and β-conglycinin in processed soybean products (in terms of protein amount) was between 15.1 and 156.1 g/g. This method was successfully applied to the analysis of 8 subunits of glycinin and β-conglycinin in 68 different processed soybean products, which provides technical support for processed product quality evaluation and monitoring soybean processing technology.
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Affiliation(s)
- Anguo Liu
- State Key Laboratory of Animal Nutrition, Frontiers Science Center for Molecular Design Breeding (MOE), China Agricultural University, Beijing 100193, PR China
| | - Luqing Yang
- State Key Laboratory of Animal Nutrition, Frontiers Science Center for Molecular Design Breeding (MOE), China Agricultural University, Beijing 100193, PR China
| | - Yuanhe Yang
- State Key Laboratory of Animal Nutrition, Frontiers Science Center for Molecular Design Breeding (MOE), China Agricultural University, Beijing 100193, PR China
| | - Siqi Lei
- State Key Laboratory of Animal Nutrition, Frontiers Science Center for Molecular Design Breeding (MOE), China Agricultural University, Beijing 100193, PR China
| | - Zhen Li
- State Key Laboratory of Plant Environmental Resilience, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China
| | - Pingli He
- State Key Laboratory of Animal Nutrition, Frontiers Science Center for Molecular Design Breeding (MOE), China Agricultural University, Beijing 100193, PR China.
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2
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Hu S, Liu C, Liu X. The Beneficial Effects of Soybean Proteins and Peptides on Chronic Diseases. Nutrients 2023; 15:nu15081811. [PMID: 37111030 PMCID: PMC10144650 DOI: 10.3390/nu15081811] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/29/2023] Open
Abstract
With lifestyle changes, chronic diseases have become a public health problem worldwide, causing a huge burden on the global economy. Risk factors associated with chronic diseases mainly include abdominal obesity, insulin resistance, hypertension, dyslipidemia, elevated triglycerides, cancer, and other characteristics. Plant-sourced proteins have received more and more attention in the treatment and prevention of chronic diseases in recent years. Soybean is a low-cost, high-quality protein resource that contains 40% protein. Soybean peptides have been widely studied in the regulation of chronic diseases. In this review, the structure, function, absorption, and metabolism of soybean peptides are introduced briefly. The regulatory effects of soybean peptides on a few main chronic diseases were also reviewed, including obesity, diabetes mellitus, cardiovascular diseases (CVD), and cancer. We also addressed the shortcomings of functional research on soybean proteins and peptides in chronic diseases and the possible directions in the future.
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Affiliation(s)
- Sumei Hu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Caiyu Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
| | - Xinqi Liu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, National Soybean Processing Industry Technology Innovation Center, Beijing Technology and Business University, Beijing 100048, China
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3
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Rebollo-Hernanz M, Bringe NA, Gonzalez de Mejia E. Selected Soybean Varieties Regulate Hepatic LDL-Cholesterol Homeostasis Depending on Their Glycinin:β-Conglycinin Ratio. Antioxidants (Basel) 2022; 12:antiox12010020. [PMID: 36670883 PMCID: PMC9855081 DOI: 10.3390/antiox12010020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/15/2022] [Accepted: 12/17/2022] [Indexed: 12/24/2022] Open
Abstract
Clinical studies indicate that the consumption of soybean protein might reduce cholesterol and LDL levels preventing the development of atherosclerotic cardiovascular diseases. However, soybean variety can influence soybean protein profile and therefore affect soybean protein health-promoting properties. This study investigated the composition and effects of nineteen soybean varieties digested under simulated gastrointestinal conditions on hepatic cholesterol metabolism and LDL oxidation in vitro. Soybean varieties exhibited a differential protein hydrolysis during gastrointestinal digestion. Soybean varieties could be classified according to their composition (high/low glycinin:β-conglycinin ratio) and capacity to inhibit HMGCR (IC50 from 59 to 229 µg protein mL−1). According to multivariate analyses, five soybean varieties were selected. These soybean varieties produced different peptide profiles and differently reduced cholesterol concentration (43−55%) by inhibiting HMGCR in fatty-acid-stimulated HepG2 hepatocytes. Selected digested soybean varieties inhibited cholesterol esterification, triglyceride production, VLDL secretion, and LDL recycling by reducing ANGPTL3 and PCSK9 and synchronously increasing LDLR expression. In addition, selected soybean varieties hindered LDL oxidation, reducing the formation of lipid peroxidation early (conjugated dienes) and end products (malondialdehyde and 4-hydroxynonenal). The changes in HMGCR expression, cholesterol esterification, triglyceride accumulation, ANGPTL3 release, and malondialdehyde formation during LDL oxidation were significantly (p < 0.05) correlated with the glycinin:β-conglycinin ratio. Soybean varieties with lower glycinin:β-conglycinin exhibited a better potential in regulating cholesterol and LDL homeostasis in vitro. Consumption of soybean flour with a greater proportion of β-conglycinin may, consequently, improve the potential of the food ingredient to maintain healthy liver cholesterol homeostasis and cardiovascular function.
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Affiliation(s)
- Miguel Rebollo-Hernanz
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | | | - Elvira Gonzalez de Mejia
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
- Correspondence: ; Tel.: +1-217-244-3196
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4
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Yang J, Zou Y, Guo J, Yang X, Jin B. Protective effect of isoflavone enriched soy β-conglycinin on osteoporosis in ovariectomized rats. J Food Biochem 2022; 46:e14507. [PMID: 36334298 DOI: 10.1111/jfbc.14507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 11/07/2022]
Abstract
Research shows that the consumption of soybean foods can reduce the incidence rate of bone fractures in women after menopause. The aim of this study was to investigate the effects of different complex of soy β-conglycinin (7S) and isoflavones (7S-ISO) on osteoporosis in ovariectomized rats. All treatments were administrated intragastrically to the groups every afternoon for 3 months. The treatments were administrated at 1 mL·(100 g)-1 , the animals were given 50 mg·kg-1 ·d-1 ISO, and the concentration of protein was about 2 wt. %. The bone mineral density (BMD) and the bone biomechanics results of left tibia' maximum load in the 7S-ISO group is significantly higher than in the ovariectomized group and the 7S group (p < .05). Otherwise, the serum tartrate-resistant acid phosphatase (s-TRACP), serum osteocalcin (s-BGP), and serum estradiol (s-E2 ) levels in 7S-ISO were all significantly different from the OVX, OVX + casein, and the OVX + 7S group (p < .05). The serum calcium (s-Ca) level was not significantly different among all the groups. 7S-ISO may exhibit moderate estrogenic activities and as compared to 7S and ISO in osteoporosis (OP) of ovariectomized rats. PRACTICAL APPLICATIONS: The effects of soy proteins on the health of females have always been a concern. It has been extensively reported soy 7S globulin (7S) as a type of trimer glycoprotein can depress blood fats. The aim of this study was to investigate the effects of different complex of soy β-conglycinin and isoflavones (ISO), the main storage proteins and polyphenols in soy, on osteoporosis in ovariectomized rats.
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Affiliation(s)
- Juan Yang
- College of Food Science and Engineering, Lingnan Normal University, Zhanjiang, P. R. China.,Western Guangdong Characteristic Biology and Medicine Engineering and Research Center, Zhanjiang, P. R. China
| | - Yuan Zou
- College of Food Science, South China Agricultural University, Guangzhou, P. R. China
| | - Jian Guo
- School of Food Science and Engineering, South China University of Technology, Guangzhou, P. R. China.,Research and Development Centre of Food Proteins, Department of Food Science and Technology, South China University of Technology, Guangzhou, P. R. China
| | - Xiaoquan Yang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, P. R. China.,Research and Development Centre of Food Proteins, Department of Food Science and Technology, South China University of Technology, Guangzhou, P. R. China
| | - Bei Jin
- College of Food Science and Engineering, Lingnan Normal University, Zhanjiang, P. R. China
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5
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Berg A, McCarthy HD. A soy-yoghurt-honey product as a therapeutic functional food: mode of action and narrative review. Heliyon 2022; 8:e11011. [DOI: 10.1016/j.heliyon.2022.e11011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/18/2022] [Accepted: 10/05/2022] [Indexed: 11/06/2022] Open
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Abstract
Legumes are an essential food source worldwide. Their high-quality proteins, complex carbohydrates, dietary fiber, and relatively low-fat content make these an important functional food. Known to possess a multitude of health benefits, legume consumption is associated with the prevention and treatment of cardiovascular diseases (CVD). Legume crude protein isolates and purified peptides possess many cardiopreventive properties. Here, we review selected economically valued legumes, their taxonomy and distribution, biochemical composition, and their protein components and the mechanism(s) of action associated with cardiovascular health. Most of the legume protein studies had shown upregulation of low-density lipoprotein (LDL) receptor leading to increased binding and uptake, in effect significantly reducing total lipid levels in the blood serum and liver. This is followed by decreased biosynthesis of cholesterol and fatty acids. To understand the relationship of identified genes from legume studies, we performed gene network analysis, pathway, and gene ontology (GO) enrichment. Results showed that the genes were functionally interrelated while enrichment and pathway analysis revealed involvement in lipid transport, fatty acid and triglyceride metabolic processes, and regulatory processes. This review is the first attempt to collate all known mechanisms of action of legume proteins associated with cardiovascular health. This also provides a snapshot of possible targets leading to systems-level approaches to further investigate the cardiometabolic potentials of legumes.
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Singh BP, Aluko RE, Hati S, Solanki D. Bioactive peptides in the management of lifestyle-related diseases: Current trends and future perspectives. Crit Rev Food Sci Nutr 2021; 62:4593-4606. [PMID: 33506720 DOI: 10.1080/10408398.2021.1877109] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Lifestyle-related diseases constitute a major concern in the twenty-first century, with millions dying worldwide each year due to chosen lifestyles and associated complications such as obesity, type 2 diabetes, hypertension, and hypercholesterolemia. Although synthetic drugs have been shown to be quite effective in the treatment of these conditions, safety of these compounds remains a concern. Natural alternatives to drugs include food-derived peptides are now being explored for the prevention and treatment of lifestyle-related complications. Peptides are fragments nascent in the primary protein sequences and could impart health benefits beyond basic nutritional advantages. Evidence suggests that by controlling adipocyte differentiation and lipase activities, bioactive peptides may be able to prevent obesity. Bioactive peptides act as agents against type 2 diabetes because of their ability to inhibit enzymatic activities of DPP-IV, α-amylase, and α-glucosidase. Moreover, bioactive peptides can act as competitive inhibitors of angiotensin-converting enzyme, thus eliciting an antihypertensive effect. Bioactive peptides may have a hypocholesterolemic effect by inhibiting cholesterol metabolism pathways and cholesterol synthesis. This review addresses current knowledge of the impact of food-derived bioactive peptides on lifestyle diseases. In addition, future insights on the clinical trials, allergenicity, cytotoxicity, gastrointestinal stability, and regulatory approvals have also been considered.
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Affiliation(s)
- Brij Pal Singh
- Department of Microbiology, School of Science, RK University, Rajkot, Gujarat, India
| | - Rotimi E Aluko
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Subrota Hati
- SMC College of Dairy Science, Anand Agricultural University, Anand, Gujarat, India
| | - Divyang Solanki
- SMC College of Dairy Science, Anand Agricultural University, Anand, Gujarat, India
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8
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Simultaneous Ultrasound and Heat Enhance Functional Properties of Glycosylated Lactoferrin. Molecules 2020; 25:molecules25235774. [PMID: 33297553 PMCID: PMC7730217 DOI: 10.3390/molecules25235774] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/03/2020] [Accepted: 12/04/2020] [Indexed: 01/07/2023] Open
Abstract
Protein-polysaccharide covalent complexes exhibit better physicochemical and functional properties than single protein or polysaccharide. To promote the formation of the covalent complex from lactoferrin (LF) and beet pectin (BP), we enhanced the Maillard reaction between LF and BP by using an ultrasound-assisted treatment and studied the structure and functional properties of the resulting product. The reaction conditions were optimized by an orthogonal experimental design, and the highest grafting degree of 55.36% was obtained by ultrasonic treatment at 300 W for 20 min and at LF concentration of 20 g/L and BP concentration of 9 g/L. The formation of LF-BP conjugates was confirmed by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and Fourier transform infrared (FTIR) spectroscopy. Ultrasound-assisted treatment can increase the surface hydrophobicity, browning index, 1,1-diphenyl-2-picryl-hydrazyl (DPPH) and 2,2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) free radicals scavenging activity of LF due to the changes in the spatial configuration and formation of Maillard reaction products. The thermal stability, antioxidant activity and emulsifying property of LF were significantly improved after combining with BP. These findings reveal the potential application of modified proteins by ultrasonic and heat treatment.
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9
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Zheng H, Yan G, Marquez S, Andler S, Dersjant-Li Y, de Mejia EG. Molecular size and immunoreactivity of ethanol extracted soybean protein concentrate in comparison with other products. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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10
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Particle degradation and nutrient bioavailability of soybean milk during in vitro digestion. FOOD BIOPHYS 2020. [DOI: 10.1007/s11483-020-09649-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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11
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Jia H, Zhou T, Zhu H, Shen L, He P. Quantification of Gly m 5.0101 in Soybean and Soy Products by Liquid Chromatography-Tandem Mass Spectrometry. Molecules 2018; 24:E68. [PMID: 30585221 PMCID: PMC6337133 DOI: 10.3390/molecules24010068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 12/17/2018] [Accepted: 12/19/2018] [Indexed: 01/06/2023] Open
Abstract
Gly m 5.0101, the alpha subunit of β-conglycinin, is one of the major allergens found in soybeans that has been identified as causing an allergic reaction. Here, we developed a quantification method of Gly m 5.0101 with multiple reaction monitoring using the synthetic peptide 194NPFLFGSNR202 as the external standard. Firstly, the ground soybean was defatted and extracted with a protein extraction buffer. Then the crude extract was on-filter digested by trypsin and analyzed by liquid chromatography-tandem mass spectrometry. The selected peptide exhibited a detection limit of 0.48 ng/mL and a linear relationship in a concentration range from 1.6 to 500 ng/mL (r² > 0.99). The developed method was successfully applied to quantify the Gly m 5.0101 level in dozens of soybean varieties from different sources and soybean products derived from different processing techniques. The developed method could be used to further analyze β-conglycinin in soybean seeds combined with sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis.
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Affiliation(s)
- Hongmin Jia
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Tianjiao Zhou
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Hong Zhu
- Key Laboratory of Urban Agriculture (North China), Ministry of Agriculture, Beijing University of Agriculture, Beijing 102206, China.
| | - Li Shen
- Key Laboratory of Urban Agriculture (North China), Ministry of Agriculture, Beijing University of Agriculture, Beijing 102206, China.
- Logistics School, Beijing Wuzi University, Beijing 101149, China.
| | - Pingli He
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
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12
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Chatterjee C, Gleddie S, Xiao CW. Soybean Bioactive Peptides and Their Functional Properties. Nutrients 2018; 10:E1211. [PMID: 30200502 PMCID: PMC6164536 DOI: 10.3390/nu10091211] [Citation(s) in RCA: 212] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 08/27/2018] [Accepted: 08/29/2018] [Indexed: 02/06/2023] Open
Abstract
Soy consumption has been associated with many potential health benefits in reducing chronic diseases such as obesity, cardiovascular disease, insulin-resistance/type II diabetes, certain type of cancers, and immune disorders. These physiological functions have been attributed to soy proteins either as intact soy protein or more commonly as functional or bioactive peptides derived from soybean processing. These findings have led to the approval of a health claim in the USA regarding the ability of soy proteins in reducing the risk for coronary heart disease and the acceptance of a health claim in Canada that soy protein can help lower cholesterol levels. Using different approaches, many soy bioactive peptides that have a variety of physiological functions such as hypolipidemic, anti-hypertensive, and anti-cancer properties, and anti-inflammatory, antioxidant, and immunomodulatory effects have been identified. Some soy peptides like lunasin and soymorphins possess more than one of these properties and play a role in the prevention of multiple chronic diseases. Overall, progress has been made in understanding the functional and bioactive components of soy. However, more studies are required to further identify their target organs, and elucidate their biological mechanisms of action in order to be potentially used as functional foods or even therapeutics for the prevention or treatment of chronic diseases.
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Affiliation(s)
- Cynthia Chatterjee
- Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, 251 Sir Frederick Banting Drive, Ottawa, ON K1A 0K9, Canada.
- Ottawa Research & Development Centre, Central Experimental Farm, Agriculture and Agri-Food Canada, 960 Carling Avenue Building#21, Ottawa, ON K1A 0C6, Canada.
| | - Stephen Gleddie
- Ottawa Research & Development Centre, Central Experimental Farm, Agriculture and Agri-Food Canada, 960 Carling Avenue Building#21, Ottawa, ON K1A 0C6, Canada.
| | - Chao-Wu Xiao
- Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, 251 Sir Frederick Banting Drive, Ottawa, ON K1A 0K9, Canada.
- Food and Nutrition Science Program, Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada.
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13
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González-Montoya M, Hernández-Ledesma B, Silván JM, Mora-Escobedo R, Martínez-Villaluenga C. Peptides derived from in vitro gastrointestinal digestion of germinated soybean proteins inhibit human colon cancer cells proliferation and inflammation. Food Chem 2018; 242:75-82. [PMID: 29037738 DOI: 10.1016/j.foodchem.2017.09.035] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 07/25/2017] [Accepted: 09/07/2017] [Indexed: 01/07/2023]
Abstract
The aim was to investigate the potential of germinated soybean proteins asa source of peptides with anticancer and anti-inflammatory activities produced after simulated gastrointestinal digestion. Protein concentrate from germinated soybean was hydrolysed with pepsin/pancreatin and fractionated by ultrafiltration. Whole digest and fractions>10, 5-10, and<5kDa caused cytotoxicity to Caco-2, HT-29, HCT-116 human colon cancer cells, and reduced inflammatory response caused by lipopolysaccharide in macrophages RAW 264.7. Antiproliferative and anti-inflammatory effects were generally higher in 5-10kDa fractions. This fraction was further purified by semi-preparative chromatography and characterised by HPLC-MS/MS. The most potent fraction was mainly composed of β-conglycinin and glycinin fragments rich in glutamine. This is the first report on the anti-cancer and anti-inflammatory effects of newly isolated and identified peptides from germinated soybean released during gastrointestinal digestion. These findings highlight the potential of germination as a process to obtain functional foods or nutraceuticals for colon cancer prevention.
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Affiliation(s)
- Marcela González-Montoya
- Escuela Nacional de Ciencias Biológicas-Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Wilfrido Massieu s/n., 07738 Ciudad de México, Mexico
| | - Blanca Hernández-Ledesma
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM, CEI UAM+CSIC), Nicolás Cabrera, 9, 28049 Madrid, Spain
| | - Jose Manuel Silván
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | - Rosalva Mora-Escobedo
- Escuela Nacional de Ciencias Biológicas-Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Wilfrido Massieu s/n., 07738 Ciudad de México, Mexico
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14
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Rizzo G, Baroni L. Soy, Soy Foods and Their Role in Vegetarian Diets. Nutrients 2018; 10:E43. [PMID: 29304010 PMCID: PMC5793271 DOI: 10.3390/nu10010043] [Citation(s) in RCA: 175] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 11/30/2017] [Accepted: 01/03/2018] [Indexed: 02/07/2023] Open
Abstract
Soy is a basic food ingredient of traditional Asian cuisine used for thousands of years. In Western countries, soybeans have been introduced about a hundred years ago and recently they are mainly used for surrogate foods production. Soy and soy foods are common nutritional solutions for vegetarians, due to their high protein content and versatility in the production of meat analogues and milk substitutes. However, there are some doubts about the potential effects on health, such as the effectiveness on cardiovascular risk reduction or, conversely, on the possible disruption of thyroid function and sexual hormones. The soy components that have stimulated the most research interest are isoflavones, which are polyphenols with estrogenic properties highly contained in soybeans. In this review, we discuss the characteristics of soy and soy foods, focusing on their nutrient content, including phytoestrogens and other bioactive substances that are noteworthy for vegetarians, the largest soy consumers in the Western countries. The safety of use will also be discussed, given the growing trend in adoption of vegetarian styles and the new soy-based foods availability.
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Affiliation(s)
| | - Luciana Baroni
- Primary Care Unit, Northern District, Local Health Unit 2, 31100 Treviso, Italy.
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15
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Xia EQ, Zhu SS, He MJ, Luo F, Fu CZ, Zou TB. Marine Peptides as Potential Agents for the Management of Type 2 Diabetes Mellitus-A Prospect. Mar Drugs 2017; 15:md15040088. [PMID: 28333091 PMCID: PMC5408234 DOI: 10.3390/md15040088] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/17/2017] [Accepted: 03/20/2017] [Indexed: 01/09/2023] Open
Abstract
An increasing prevalence of diabetes is known as a main risk for human health in the last future worldwide. There is limited evidence on the potential management of type 2 diabetes mellitus using bioactive peptides from marine organisms, besides from milk and beans. We summarized here recent advances in our understanding of the regulation of glucose metabolism using bioactive peptides from natural proteins, including regulation of insulin-regulated glucose metabolism, such as protection and reparation of pancreatic β-cells, enhancing glucose-stimulated insulin secretion and influencing the sensitivity of insulin and the signaling pathways, and inhibition of bioactive peptides to dipeptidyl peptidase IV, α-amylase and α-glucosidase activities. The present paper tried to understand the underlying mechanism involved and the structure characteristics of bioactive peptides responsible for its antidiabetic activities to prospect the utilization of rich marine organism proteins.
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Affiliation(s)
- En-Qin Xia
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Shan-Shan Zhu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Min-Jing He
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Fei Luo
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Cheng-Zhan Fu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Tang-Bin Zou
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
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16
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Dalaram IS. Evaluation of total polyphenol content and antioxidant capacity of different verity lupin seeds. POTRAVINARSTVO 2017. [DOI: 10.5219/678] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Legumes, including lupins, beans, lentil and chickpea, are one of the most important crops in the world because of their nutritional quality. Lupin seeds have been used as human food and animal feed since ancient times. It was known that antioxidant photochemical in foods have many health benefits including prevention of various diseases associated with oxidative stress such as cancer, cardiovascular disease, neuro-degeneration and diabetes. Lupin grains are rich sources of complex carbohydrates, protein, vitamins and minerals. Antioxidants can be found naturally in foods. Total polyphenols content and antioxidant activity were measured in four varieties of lupin, namely in white lupin, blue lupin, yellow lupin and Mutabilis lupin species. A majority of antioxidants naturally present in foods occur in phenolic structures and especially in flavonoid structures. The content of the total polyphenols was determined by using the Folin-Ciocalteu reagent (FCR). Antioxidant activity was measured by using a compound DPPH˙ (2.2-diphenyl-1-picrylhydrazyl). In the present experiment according to the average contents of total polyphenols (TPC) in dry matter of lupin seeds there was the following line: L. Angustifolius (blue) lupin (696.212 mg GAE.100g-1) > L. Albus (white) lupin (614.13 mg GAE.100g-1) > L. Luteus (yellow) lupin (467.78 mg GAE.100g-1) > L. Mutabilis (pearl) lupin (367.36 mg GAE.100g-1). Based on the measured values of total antioxidant capacity (TAC) of lupin samples can be classified as follows: L. Albus (white) lupin (43.44%) >L. Angustifolius (blue) lupin (38.27%) >L. Luteus (yellow) lupin (22.29%) >L. Mutabilis (Pearl) lupin (20.80%). The relationship of antioxidant capacity with total polyphenolic was discussed. According to used statistical analyzes. Correlation between the phenolic contents and antioxidant capacity was significantly positive (r = 0.88). Our results confirmed that legumes can be a good source of bioactive compounds in the human nutrition. The main objective of the present work was to evaluated the content of total polyphenols and an antioxidant capacity of four Lupine species.
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Oseguera Toledo ME, Gonzalez de Mejia E, Sivaguru M, Amaya-Llano SL. Common bean ( Phaseolus vulgaris L.) protein-derived peptides increased insulin secretion, inhibited lipid accumulation, increased glucose uptake and reduced the phosphatase and tensin homologue activation in vitro. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.09.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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de Castro RJS, Inacio RF, de Oliveira ALR, Sato HH. Statistical optimization of protein hydrolysis using mixture design: Development of efficient systems for suppression of lipid accumulation in 3T3-L1 adipocytes. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2015.12.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Carbonaro M, Maselli P, Nucara A. Structural aspects of legume proteins and nutraceutical properties. Food Res Int 2015. [DOI: 10.1016/j.foodres.2014.11.007] [Citation(s) in RCA: 110] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Lammi C, Zanoni C, Arnoldi A, Vistoli G. Two Peptides from Soy β-Conglycinin Induce a Hypocholesterolemic Effect in HepG2 Cells by a Statin-Like Mechanism: Comparative in Vitro and in Silico Modeling Studies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:7945-7951. [PMID: 26310992 DOI: 10.1021/acs.jafc.5b03497] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Two peptides from soybean β-conglycinin, i.e., YVVNPDNDEN (peptide 2) and YVVNPDNNEN (peptide 3), are known to be absorbed by human enterocytes. The former is a fragment of LRVPAGTTFYVVNPDNDENLRMIA (peptide 1), previously shown to increase the low-density lipoprotein (LDL) uptake and degradation in hepatocytes. Research carried out in silico on their interactions with the catalytic site of 3-hydroxy-3-methylglutaryl CoA reductase (HMGCoAR) demonstrated that they behave as competitive inhibitors of HMGCoAR activity with a statin-like mechanism, confirmed by direct inhibition experiments. Research in HepG2 cells aimed at investigating the effects of these peptides on cholesterol metabolism showed that compared to mock treatment peptide 2 at 350 μM up-regulates the mature SREBP2 protein level by 134.0 ± 10.5%, increases the LDLR protein level by 152.0 ± 20.0%, and enhances the HMGCoAR protein production by 171 ± 29.9%, whereas peptide 3 up-regulates the mature SREBP2 protein level by 158.0 ± 9.2%, increases the LDL level 164.0 ± 17.9%, and induces a HMGCoAR protein increase by 170 ± 50.0%.
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Affiliation(s)
- Carmen Lammi
- Department of Pharmaceutical Sciences, University of Milan , via Mangiagalli 25, Milan 20133, Italy
| | - Chiara Zanoni
- Cardio-toraco-vascular Department, Niguarda Hospital , Milan 20162, Italy
| | - Anna Arnoldi
- Department of Pharmaceutical Sciences, University of Milan , via Mangiagalli 25, Milan 20133, Italy
| | - Giulio Vistoli
- Department of Pharmaceutical Sciences, University of Milan , via Mangiagalli 25, Milan 20133, Italy
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Examination of the Causes of Instability of Soy Protein Isolate During Storage Through Probing of the Heat-Induced Aggregation. J AM OIL CHEM SOC 2015. [DOI: 10.1007/s11746-015-2684-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Geng T, Liu K, Frazier R, Shi L, Bell E, Glenn K, Ward JM. Development of a Sandwich ELISA for Quantification of Gly m 4, a Soybean Allergen. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:4947-53. [PMID: 25946567 DOI: 10.1021/acs.jafc.5b00792] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Gly m 4 is a key soybean allergen that causes allergic symptoms in the skin, gastrointestinal tract, or respiratory tract of sensitive individuals. To understand naturally variable levels of Gly m 4 among conventional soybean varieties, a sandwich ELISA was developed and validated using a mouse anti-Gly m 4 monoclonal antibody and a goat anti-Gly m 4 polyclonal antibody as capture and detection antibodies, respectively. The ELISA shows high specificity to Gly m 4 without any cross-reactivity to other soybean proteins and has a quantification range of 7.8-250 ng/mL using an Escherichia coli-produced recombinant Gly m 4, with 2.1 ng/mL being the limit of detection. Within the quantification range, the coefficients of variation of the intra-assay and interassay precision are less than 5 and 12%, respectively. Moreover, extraction efficiency and dilutional parallelism experiments were completed to demonstrate the assay is accurate. The validated assay was used to quantify Gly m 4 levels in 128 soybean samples from 24 conventional soybean varieties grown at 8 distinct geographical locations. There was a 13-fold difference between the least and greatest amounts of Gly m 4 concentrations among the samples, and the results demonstrate that the most significant sources of variability in Gly m 4 levels in the conventional varieties were related to location and variety.
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Affiliation(s)
- Tao Geng
- Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, Missouri 63167, United States
| | - Kang Liu
- Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, Missouri 63167, United States
| | - Ronald Frazier
- Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, Missouri 63167, United States
| | - Lifang Shi
- Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, Missouri 63167, United States
| | - Erin Bell
- Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, Missouri 63167, United States
| | - Kevin Glenn
- Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, Missouri 63167, United States
| | - Jason M Ward
- Monsanto Company, 800 North Lindbergh Boulevard, St. Louis, Missouri 63167, United States
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So KH, Suzuki Y, Yonekura S, Suzuki Y, Lee CH, Kim SW, Katoh K, Roh SG. Soluble extract of soybean fermented with Aspergillus oryzae GB107 inhibits fat accumulation in cultured 3T3-L1 adipocytes. Nutr Res Pract 2015; 9:439-44. [PMID: 26244085 PMCID: PMC4523490 DOI: 10.4162/nrp.2015.9.4.439] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 01/30/2015] [Accepted: 02/16/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND/OBJECTIVES This study was conducted to investigate the effects of fermented soybean (FS) extract on adipocyte differentiation and fat accumulation using cultured 3T3-L1 adipocytes. MATERIALS/METHODS 3T3-L1 adipocytes were treated with FS and nonfermented soybean (NFS) extract during differentiation for 10 days in vitro. Oil red O staining was performed and glycerol-3-phosphate dehydrogenase (GPDH) activity was measured for analysis of fat accumulation. Expressions of adipogenic genes were measured. RESULTS Soluble extract of soybean fermented with Aspergillus oryzae GB107 contained higher levels of low-molecular-weight protein than conventional soybean protein did. FS extract (50 µg/ml) inhibited adipocyte differentiation and fat accumulation during differentiation of 3T3-L1 preadipocytes for 10 days in vitro. Significantly lower GPDH activity was observed in differentiated adipocytes treated with the FS extract than those treated with NFS extract. Treatment with FS extract resulted in decreased expression levels of leptin, adiponectin, and adipogenin genes, which are associated with adipogenesis. CONCLUSIONS This report is the first to demonstrate that the water-soluble extract from FS inhibits fat accumulation and lipid storage in 3T3-L1 adipocytes. Thus, the soybean extract fermented with A. oryzae GB107 could be used to control lipid accumulation in adipocytes.
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Affiliation(s)
- Kyoung-Ha So
- Laboratory of Animal Physiology, Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai 981-8555, Japan
| | - Yasuki Suzuki
- Faculty of Agriculture, Shinshu University, Nagano-ken 399-4598, Japan
| | - Shinichi Yonekura
- Faculty of Agriculture, Shinshu University, Nagano-ken 399-4598, Japan
| | - Yutaka Suzuki
- Laboratory of Animal Physiology, Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai 981-8555, Japan
| | | | - Sung Woo Kim
- Department of Animal Science, North Carolina State University, Raleigh, NC 27695, USA
| | - Kazuo Katoh
- Laboratory of Animal Physiology, Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai 981-8555, Japan
| | - Sang-Gun Roh
- Laboratory of Animal Physiology, Graduate School of Agricultural Science, Tohoku University, Aoba-ku, Sendai 981-8555, Japan
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de Castro RJS, Sato HH. Biologically active peptides: Processes for their generation, purification and identification and applications as natural additives in the food and pharmaceutical industries. Food Res Int 2015; 74:185-198. [PMID: 28411983 DOI: 10.1016/j.foodres.2015.05.013] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 05/01/2015] [Accepted: 05/08/2015] [Indexed: 12/01/2022]
Abstract
Recent technological advances have created great interest in the use of biologically active peptides. Bioactive peptides can be defined as specific portions of proteins with 2 to 20 amino acids that have desirable biological activities, including antioxidant, anti-hypertensive, antithrombotic, anti-adipogenic, antimicrobial and anti-inflammatory effects. Specific characteristics, including low toxicity and high specificity, make these molecules of particular interest to the food and pharmaceutical industries. This review focuses on the production of bioactive peptides, with special emphasis on fermentation and enzymatic hydrolysis. The combination of different technologies and the use of auxiliary processes are also addressed. A survey of isolation, purification and peptide characterization methods was conducted to identify the major techniques used to determine the structures of bioactive peptides. Finally, the antioxidant, antimicrobial, anti-hypertensive, anti-adipogenic activities and probiotic-bacterial growth-promoting aspects of various peptides are discussed.
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Affiliation(s)
- Ruann Janser Soares de Castro
- Department of Food Science, School of Food Engineering, University of Campinas, 80 Rua Monteiro Lobato, Campinas, SP, Brazil.
| | - Hélia Harumi Sato
- Department of Food Science, School of Food Engineering, University of Campinas, 80 Rua Monteiro Lobato, Campinas, SP, Brazil
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Chen Q, Wood C, Gagnon C, Cober ER, Frégeau-Reid JA, Gleddie S, Xiao CW. The α' subunit of β-conglycinin and the A1-5 subunits of glycinin are not essential for many hypolipidemic actions of dietary soy proteins in rats. Eur J Nutr 2014; 53:1195-207. [PMID: 24276222 DOI: 10.1007/s00394-013-0620-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Accepted: 11/08/2013] [Indexed: 12/18/2022]
Abstract
PURPOSE This study examined the effects of dietary soy protein (SP) lacking different storage protein subunits and isoflavones (ISF) on the abdominal fat, blood lipids, thyroid hormones, and enzymatic activities in rats. METHODS Weanling Sprague-Dawley rats (8 males and 8 females/group) were fed diets containing either 20 % casein without or with supplemental isoflavones or alcohol-washed SP isolate or SP concentrates (SPC) prepared from 6 different soy bean lines for 8 weeks. RESULTS Feeding of diets containing SPC regardless of their subunit compositions significantly lowered relative liver weights, blood total, free, and LDL cholesterol in both genders (P < 0.05) and also reduced serum free fatty acids (FFA) and abdominal fat in females (P < 0.05) compared to the casein or casein + ISF diets. Dietary SPC significantly elevated the plasma free triiodothyronine (T3) in both genders and total T3 in females compared to the casein diet (P < 0.05). The SPC lacking β-conglycinin α' and either the glycinin A1-3 or A1-5 subunits increased total T3 in males and reduced plasma enzymatic activities of creatine kinase and lactate dehydrogenase compared to casein or casein + ISF diet (P < 0.05). CONCLUSIONS Soy isoflavones were mainly responsible for the hypocholesterolemic effects and increased plasma free T3, whereas reduction in FFA, abdominal fat, liver weight and increased plasma total T3 were the effects of the soy proteins. Neither the α' subunit of β-conglycinin nor the A1-5 subunits of glycinin are essential for the hypolipidemic properties of soy proteins.
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Affiliation(s)
- Qixuan Chen
- Nutrition Research Division, Food Directorate, Health Products and Food Branch, Health Canada, Banting Research Centre, Ottawa, ON, K1A 0K9, Canada
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Amigo-Benavent M, Clemente A, Caira S, Stiuso P, Ferranti P, del Castillo MD. Use of phytochemomics to evaluate the bioavailability and bioactivity of antioxidant peptides of soybean β-conglycinin. Electrophoresis 2014; 35:1582-9. [PMID: 24375550 DOI: 10.1002/elps.201300527] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 12/17/2013] [Accepted: 12/18/2013] [Indexed: 12/21/2022]
Abstract
This research investigates how in vitro digestion contributes to the release of antioxidant peptides crypted in soybean β-conglycinin (7S) and its deglycosylated form (D7S). It also investigates the uptake of the bioactive peptides by human intestinal Caco-2 cells using a bicameral system, and their effect on the antioxidant cell defense. Phytochemomics is used as a tool for achieving this goal. The peptides are obtained by mimicking human physiological gastrointestinal digestion conditions. The antioxidant capacity of the peptides is tested by ABTS•(+) radical cation decolorization (2,2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS)) and oxygen radical absorbance capacity assays. The antioxidant power of the peptides recovered from the basolateral chamber is also evaluated by an analysis of biomarkers of cellular oxidative stress such as cell proliferation, alkaline phosphatase, and secretion of nitric oxide, lipid peroxidation, superoxide dismutase and catalase. Peptides from D7S were more active than those of 7S in the modulation of the cell proliferation, oxidative status and differentiation of Caco-2 cells treated with H2 O2 . Differences in the bioactivity of the peptides of both proteins can be explained by analysis of the structural data obtained by mass spectrophotometry. Our findings support the bioavailability of antioxidant peptides of 7S. The antioxidant properties of 7S soy protein were influenced by events such as glycosylation, digestion, and absorption. Deglycosylation seems to be an innovative strategy for improving the properties of 7S. Deglycosylation might enhance 7S antioxidant power and reduce its immunoreactivity. The combined use of advanced analytical techniques and biochemical analyses (phytochemomics) has been a key part of this study.
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Tachibana N, Yamashita Y, Nagata M, Wanezaki S, Ashida H, Horio F, Kohno M. Soy β-conglycinin improves glucose uptake in skeletal muscle and ameliorates hepatic insulin resistance in Goto-Kakizaki rats. Nutr Res 2014; 34:160-7. [PMID: 24461318 DOI: 10.1016/j.nutres.2013.12.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 11/19/2013] [Accepted: 12/01/2013] [Indexed: 12/21/2022]
Abstract
Although the underlying mechanism is unclear, β-conglycinin (βCG), the major component of soy proteins, regulates blood glucose levels. Here, we hypothesized that consumption of βCG would normalize blood glucose levels by ameliorating insulin resistance and stimulating glucose uptake in skeletal muscles. To test our hypothesis, we investigated the antidiabetic action of βCG in spontaneously diabetic Goto-Kakizaki (GK) rats. Our results revealed that plasma adiponectin levels and adiponectin receptor 1 messenger RNA expression in skeletal muscle were higher in βCG-fed rats than in casein-fed rats. Phosphorylation of adenosine monophosphate-activated protein kinase (AMP kinase) but not phosphatidylinositol-3 kinase was activated in βCG-fed GK rats. Subsequently, βCG increased translocation of glucose transporter 4 to the plasma membrane. Unlike the results in skeletal muscle, the increase in adiponectin receptor 1 did not lead to AMP kinase activation in the liver of βCG-fed rats. The down-regulation of sterol regulatory element-binding factor 1, which is induced by low insulin levels, promoted the increase in hepatic insulin receptor substrate 2 expression. Based on these findings, we concluded that consumption of soy βCG improves glucose uptake in skeletal muscle via AMP kinase activation and ameliorates hepatic insulin resistance and that these actions may help normalize blood glucose levels in GK rats.
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Affiliation(s)
- Nobuhiko Tachibana
- Food Science Research Institute, Fuji Oil Co, Ltd, 1 Sumiyoshi-cho, Izumisano 598-8540, Japan.
| | - Yoko Yamashita
- Laboratory of Biochemistry Frontiers, Graduate School of Agricultural Sciences, Kobe University, Kobe 657-8501, Japan
| | - Mayuko Nagata
- Food Science Research Institute, Fuji Oil Co, Ltd, 1 Sumiyoshi-cho, Izumisano 598-8540, Japan
| | - Satoshi Wanezaki
- Food Science Research Institute, Fuji Oil Co, Ltd, 1 Sumiyoshi-cho, Izumisano 598-8540, Japan
| | - Hitoshi Ashida
- Laboratory of Biochemistry Frontiers, Graduate School of Agricultural Sciences, Kobe University, Kobe 657-8501, Japan
| | - Fumihiko Horio
- Department of Molecular Biosciences, Graduate School of Bioagricultural Sciences, Nagoya University, Nagoya 464-8601, Japan
| | - Mitsutaka Kohno
- Food Science Research Institute, Fuji Oil Co, Ltd, 1 Sumiyoshi-cho, Izumisano 598-8540, Japan
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Margatan W, Ruud K, Wang Q, Markowski T, Ismail B. Angiotensin converting enzyme inhibitory activity of soy protein subjected to selective hydrolysis and thermal processing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:3460-3467. [PMID: 23514371 DOI: 10.1021/jf4001555] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Soy protein isolate (SPI) and β-conglycinin- and glycinin-rich fractions were hydrolyzed using papain and pepsin. Protein denaturation, profiling, and peptide identification were carried out following DSC, SDS-PAGE, and liquid chromatography-tandem mass spectrometry (LC-MS/MS) analysis. The in vitro antihypertensive activity of the hydrolysates was compared by determining the angiotensin converting enzyme (ACE) inhibitory activity. SDS-PAGE and LC-MS/MS analysis confirmed pepsin selectivity to glycinin and papain partial selectivity to β-conglycinin when the protein is least denatured. Both the papain-hydrolyzed SPI and the papain-hydrolyzed β-conglycinin-rich fraction had more than double the ACE inhibitory activity of that of pepsin-hydrolyzed SPI and pepsin-hydrolyzed glycinin-rich fraction. This observation indicated that β-conglycinin is a better precursor for antihypertensive peptides than glycinin. Additionally, the inhibitory activity of the papain-hydrolyzed SPI was thermally stable. This work demonstrated, for the first time, that selective hydrolysis to release peptides with ACE inhibitory activity can be accomplished without inducing extensive hydrolysis and performing unnecessary fractionation.
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Affiliation(s)
- Wynnie Margatan
- Food Science and Nutrition, University of Minnesota, St. Paul, Minnesota 55108-1038, United States
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Fernandez-Raudales D, Hoeflinger JL, Bringe NA, Cox SB, Dowd SE, Miller MJ, Gonzalez de Mejia E. Consumption of different soymilk formulations differentially affects the gut microbiomes of overweight and obese men. Gut Microbes 2012; 3:490-500. [PMID: 22895080 PMCID: PMC3495786 DOI: 10.4161/gmic.21578] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The effects of consuming foods on the intestinal microbiome of obese individuals remain unclear. The objective of this study was to compare the effects of consuming low glycinin soymilk (LGS, 49.5% β-conglycinin/6% glycinin), conventional soymilk (S, 26.5% β-conglycinin/38.7% glycinin) or bovine milk (M, 0% β-conglycinin/0% glycinin) on the intestinal microbiome in overweight and obese men. In a randomized double-blind study, participants (64 men, BMI > 25, 20-45 y old), organized in three groups, consumed 500 mL of LGS, S or M daily for 3 mo. Three fecal samples were collected before (baseline) and after 3 mo of consumption. Dietary energy and macronutrient intake were monitored monthly and remained constant throughout the study (p > 0.05). Microbial composition was analyzed with qPCR and bTEFAP. Within groups, qPCR analysis showed that the total bacteria increased in all treatments over time (p < 0.001). Bacteroides-Prevotella (p = 0.001) and Lactobacillus (p < 0.001) increased in LGS and M, respectively. Bifidobacterium was significantly reduced in LGS (p = 0.003) and S (p < 0.001). Bacterial diversity decreased for LGS, S and M (p = 0.004, 0.005, 0.001; respectively). Unweighted UniFrac analysis revealed that the microbial communities were more similar within than between individuals. The Firmicutes to Bacteroidetes ratio decreased in both LGS and S groups and remained relatively unchanged in the M group (Time p = 0.012; Interaction p = 0.059). Indicator analysis revealed several genera that were indicative of each treatment including Lactobacillus and Prevotella. Consumption of the three beverages differentially altered the microbiota in overweight and obese men including a potentially beneficial alteration of the Firmicutes to Bacteroidetes ratio in both soymilk groups.
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Affiliation(s)
- Dina Fernandez-Raudales
- Department of Food Science and Human Nutrition; University of Illinois at Urbana Champaign; Urbana, IL USA
| | - Jennifer L. Hoeflinger
- Department of Food Science and Human Nutrition; University of Illinois at Urbana Champaign; Urbana, IL USA
| | | | | | | | - Michael J. Miller
- Department of Food Science and Human Nutrition; University of Illinois at Urbana Champaign; Urbana, IL USA,Correspondence to: Michael J. Miller, and Elvira Gonzalez de Mejia,
| | - Elvira Gonzalez de Mejia
- Department of Food Science and Human Nutrition; University of Illinois at Urbana Champaign; Urbana, IL USA,Correspondence to: Michael J. Miller, and Elvira Gonzalez de Mejia,
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Cederroth CR, Zimmermann C, Nef S. Soy, phytoestrogens and their impact on reproductive health. Mol Cell Endocrinol 2012; 355:192-200. [PMID: 22210487 DOI: 10.1016/j.mce.2011.05.049] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 05/06/2011] [Accepted: 05/13/2011] [Indexed: 11/24/2022]
Abstract
There is growing interest in the potential health threats posed by endocrine-disrupting chemicals (EDCs) to the reproductive system. Soybean is the most important dietary source of isoflavones, an important class of phytoestrogen. While consumption of soy food or phytoestrogen supplements has been frequently associated with beneficial health effects, the potentially adverse effects on development, fertility, and the reproductive and endocrine systems are likely underappreciated. Here we review the available epidemiological, clinical and animal data on the effects of soy and phytoestrogens on the development and function of the male and female reproductive system, and weigh the evidence as to their detrimental impact.
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Affiliation(s)
- Christopher Robin Cederroth
- Department of Genetic Medicine and Development, University of Geneva Medical School, 1211 Geneva, Switzerland
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Guo J, Yang XQ, He XT, Wu NN, Wang JM, Gu W, Zhang YY. Limited aggregation behavior of β-conglycinin and its terminating effect on glycinin aggregation during heating at pH 7.0. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:3782-3791. [PMID: 22429197 DOI: 10.1021/jf300409y] [Citation(s) in RCA: 99] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
In this work, different thermal aggregation behaviors of soy β-conglycinin and glycinin at pH 7.0 were characterized with size exclusion chromatography and low-angle light scattering. Limited aggregation that grew via the consumption of "monomers" was detected in β-conglycinin, forming soluble aggregates. For glycinin, the association between the aggregates that led to the appearance of insoluble materials was observed. Heated with β-conglycinin, the assembly between the glycinin aggregates was terminated and its solubility was recovered. The structure of the soluble and insoluble aggregates was analyzed by small-angle X-ray scattering and dynamic light scattering. Unlike the β-conglycinin soluble aggregates that possessed limited size and less compact conformation, particles with a denser core and a less dense outer shell were found in the glycinin insoluble aggregates. Evidence is presented to reveal the transition between the soluble and insoluble aggregates and the role of β-conglycinin in the solubilization of the soy protein aggregates during heating.
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Affiliation(s)
- Jian Guo
- Protein Research and Development Center, Department of Food Science and Technology, South China University of Technology, Guangzhou, People's Republic of China
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Yamazaki T, Kishimoto K, Miura S, Ezaki O. Dietary β-conglycinin prevents fatty liver induced by a high-fat diet by a decrease in peroxisome proliferator-activated receptor γ2 protein. J Nutr Biochem 2012; 23:123-32. [DOI: 10.1016/j.jnutbio.2010.11.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 10/31/2010] [Accepted: 11/09/2010] [Indexed: 12/31/2022]
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Quiroga AV, Aphalo P, Ventureira JL, Martínez EN, Añón MC. Physicochemical, functional and angiotensin converting enzyme inhibitory properties of amaranth (Amaranthus hypochondriacus) 7S globulin. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2012; 92:397-403. [PMID: 21834100 DOI: 10.1002/jsfa.4590] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 06/07/2011] [Accepted: 07/01/2011] [Indexed: 05/31/2023]
Abstract
BACKGROUND Amaranth 7S globulin is a minor globulin component and its impact on the properties of an amaranth protein ingredient depends on its proportion in the variety of amaranth being considered. Some physicochemical, functional and angiotesin I-converting enzyme (ACE) inhibitory properties of amaranth vicilin were studied in this work and compared with the 11S globulin. RESULTS Fluorescence spectroscopy results indicated that 7S globulin tryptophans were more exposed to the solvent and, by calorimetry, the 7S globulin denaturation temperature (T(d) ) was found lower than the 11S globulin T(d) , suggesting a more flexible structure. The 7S globulin surface hydrophobicity was higher than that of the 11S globulin, which is in agreement with the better emulsifying properties of the 7S globulin. The solubility in neutral buffer of the 7S globulin (851 ± 25 g kg(-1) ) was also higher than that of the 11S globulin (195 ± 6 g kg(-1) ). Bioinformatic analyses showed the presence of ACE inhibitory peptides encrypted in 7S tryptic sequences and peptides released after in vitro gastrointestinal digestion showed a high ACE-inhibitory capacity (IC(50) = 0.17 g L(-1) ), similar to that of 11S globulin peptides. CONCLUSION Compared with the 11S globulin, the 7S globulin presents similar ACE inhibitory activity and some functional advantages, better solubility and emulsifying activity, which suits some food requirements. The functional behavior has been related with the structural properties.
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Affiliation(s)
- Alejandra V Quiroga
- Facultad de Ciencias Exactas, Centro de Investigación y Desarrollo en Criotecnología de Alimentos (CIDCA), Universidad Nacional de La Plata y Consejo Nacional de Investigaciones Científicas y Técnicas, calle 47 y 116, 1900 La Plata, Argentina
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Soya protein hydrolysates modify the expression of various pro-inflammatory genes induced by fatty acids in ovine phagocytes. Br J Nutr 2011; 108:1246-55. [DOI: 10.1017/s0007114511006520] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The objective of the present study was to test the hypothesis that fatty acids are the circulating mediators acting in a pro-inflammatory manner towards activated circulating ovine monocyte/macrophages and neutrophils. Furthermore, whether soya protein hydrolysates (SPH) inhibit the fatty acid-induced increase in the production of pro-inflammatory responses by ovine phagocytes was tested in vitro. All the fatty acids tested (myristic, palmitic, palmitoleic, stearic and oleic) increased (P < 0·01; C18>C16>C14) membrane-bound urokinase plasminogen activator (u-PA) and u-PA free binding sites in cell membranes of activated ovine blood monocytes/macrophages, but only the C18 fatty acids (stearic, oleic) were effective towards blood neutrophils. The C18 fatty acids up-regulated (P < 0·05) the gene expression of u-PA, u-PA receptor, intercellular adhesion molecule 1 and inducible NO synthase (in monocytes) but not that of cyclo-oxygenase-2, integrin α X and plasminogen activator inhibitor types 1 and 2 by ovine phagocytes. SPH blocked completely or partially all C18 fatty acid-induced changes in the expression of various pro-inflammatory genes. In conclusion, fatty acids selectively ‘activate’ ovine phagocytes, suggesting that these cells ‘sense’ metabolic signals derived from adipocytes. Soya protein peptides inhibit all changes in gene expression induced by fatty acids in ovine phagocytes in vitro. This constitutes a novel mechanism of action.
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Matemu AO, Nakamura K, Kayahara H, Murasawa H, Katayama S, Nakamura S. Enhanced antiviral activity of soybean β-conglycinin-derived peptides by acylation with saturated fatty acids. J Food Sci 2011; 76:M299-304. [PMID: 22417502 DOI: 10.1111/j.1750-3841.2011.02248.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Peptide mixtures prepared from soybean β-conglycinin (7S-peptides) were acylated with saturated fatty acids of different chain length (6C-18C) in order to improve their antiviral activity against Feline calicivirus (FCV) strain F9 which is a typical norovirus surrogate. Among the fatty acids varieties, it was revealed that 7S-peptides acylated with myristic and palmitic acids potently inhibited FCV replication. Myristorylation and palmitoylation of 7S-peptides kept host cells viability at 91.51% and 98.90%, respectively. The infectivity of FCV on Crandell-Reese feline kidney cells was further determined after exposure of initial titer of 10(6.47) TCID₅₀/mL. Myristoylated and palmitoylated 7S-peptides significantly (P < 0.006) reduced FCV infectivity as compared to native 7S-peptides. Native 7S-peptides showed 25% FCV inhibitory activity while myristoylated and palmitoylated 7S-peptides exhibited 98.59% and 99.98% reduction in FCV infectivity, respectively. Myristoylated and palmitoylated 7S-peptides demonstrated higher anti-FCV activity in a wide range of concentration with complete reduction at 25 μg/mL. Surface hydrophobicity was significantly (P < 0.05) increased after attachment of long hydrocarbon fatty acids to 7S-peptides as supported by changes in fluorescence intensity. Enzymatic hydrolysis together with acylation will give an insight into surface and physiological functional lipopeptides derived from soy β-conglycinin.
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Affiliation(s)
- Athanasia O Matemu
- Dept. of Bioscience and Biotechnology, Shinshu Univ., 8304 Minamiminowamura, Nagano 399-4598, Japan
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Malaki Nik A, Wright AJ, Corredig M. Micellization of Beta‐Carotene from Soy‐Protein Stabilized Oil‐in‐Water Emulsions under In Vitro Conditions of Lipolysis. J AM OIL CHEM SOC 2011. [DOI: 10.1007/s11746-011-1806-z] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amir Malaki Nik
- Department of Food ScienceUniversity of GuelphGuelphONN1G 2W1Canada
| | - Amanda J. Wright
- Department of Human Health and Nutritional SciencesUniversity of GuelphGuelphONN1G 2W1Canada
| | - Milena Corredig
- Department of Food ScienceUniversity of GuelphGuelphONN1G 2W1Canada
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Ma Y, Wang T. Identification and Validation of Soy Peptides with In‐vitro Hemagglutination Activity. J AM OIL CHEM SOC 2010. [DOI: 10.1007/s11746-010-1725-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yating Ma
- Department of Food Science and Human NutritionIowa State University2312 Food Sciences BuildingAmesIA50011‐1061USA
| | - Tong Wang
- Department of Food Science and Human NutritionIowa State University2312 Food Sciences BuildingAmesIA50011‐1061USA
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Ikeda K, Kitagawa S, Tada T, Iefuji H, Inoue Y, Izawa S. Modification of yeast characteristics by soy peptides: cultivation with soy peptides represses the formation of lipid bodies. Appl Microbiol Biotechnol 2010; 89:1971-7. [DOI: 10.1007/s00253-010-3001-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 10/31/2010] [Accepted: 11/01/2010] [Indexed: 01/09/2023]
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Amigo-Benavent M, Athanasopoulos VI, del Castillo MD. Ion exchange chromatographic conditions for obtaining individual subunits of soybean beta-conglycinin. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2453-6. [PMID: 20724230 DOI: 10.1016/j.jchromb.2010.07.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Revised: 06/11/2010] [Accepted: 07/20/2010] [Indexed: 11/26/2022]
Abstract
Soybean beta-conglycinin is a complex protein possessing health-promoting properties. beta-Conglycinin is a trimeric glycoprotein. Little information related to methods for separation of the individual chains forming beta-conglycinin has been so far published and it is of great interest. As a consequence, less data on the bioactivities of alpha, alpha' and beta subunits of this glycoprotein have been published. The present research aimed to find out new alternative chromatographic conditions to obtain beta-conglycinin subunits that are free of contaminating proteins. In the present short communication, we propose the use of a two-step ion exchange chromatographic protocol to achieve this goal. Firstly, beta subunit was separated by means of anionic exchange fast protein liquid chromatography. Secondly, alpha and alpha' chains were separated from each other by cationic exchange. Our data indicated the feasibility of proposed fractionation protocol to separate soybean beta-conglycinin alpha and alpha' subunits from other contaminating proteins and to obtain enough amounts of the three individual chains forming this glycoprotein for further characterization and application. The procedure may be easily up-scaled.
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Affiliation(s)
- Miryam Amigo-Benavent
- Food Analysis and Bioactivity Department, Instituto de Investigación en Ciencias de Alimentación, CSIC-UAM, Nicolas Cabrera 9, Campus de la Universidad Autonoma de Madrid, 28049 Madrid, Spain.
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Darmawan R, Bringe NA, de Mejia EG. Antioxidant capacity of alcalase hydrolysates and protein profiles of two conventional and seven low glycinin soybean cultivars. PLANT FOODS FOR HUMAN NUTRITION (DORDRECHT, NETHERLANDS) 2010; 65:233-40. [PMID: 20809410 DOI: 10.1007/s11130-010-0185-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Soy protein hydrolysates are considered a potential dietary source of natural antioxidants with important biological activities. This study was conducted to compare the effect of two conventional and seven low glycinin soybean cultivars on the antioxidant capacity (AC) of soy hydrolysates. Nine cultivars were grown in Bloomington, IL, Findlay, OH and Huxley, IA. The hydrolysates were produced enzymatically using alcalase and analyzed for AC using oxygen radical absorbance capacity (ORAC) assay and soluble protein. Statistical differences were observed in the protein profiles and AC among the different cultivars tested (P < 0.05). The hydrolysate from low glycinin cultivar 3 enriched in β-conglycinin, grown in Bloomington, exhibited the highest AC, compared to the other cultivars across all locations. On average, soy cultivars rich in BC and purified BC hydrolysates (36.2 and 31.8 μM Trolox equivalents (TE)/μg soluble protein, respectively) (P > 0.05) had higher AC than purified glycinin (GL) hydrolysate (28.5 μM TE/μg soluble protein) (P < 0.05). It was possible to select a soybean cultivar that produced a higher antioxidant capacity upon alcalase hydrolysis.
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Affiliation(s)
- Rudy Darmawan
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 228 ERML, MC-051, 1201 W. Gregory Drive, Urbana, IL 61801, USA
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KELLOGG JOSHUA, WANG JINZHI, FLINT COURTNEY, RIBNICKY DAVID, KUHN PETER, DE MEJIA ELVIRAGONZÁLEZ, RASKIN ILYA, LILA MARYANN. Alaskan wild berry resources and human health under the cloud of climate change. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:3884-900. [PMID: 20025229 PMCID: PMC2850959 DOI: 10.1021/jf902693r] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Wild berries are integral dietary components for Alaska Native people and a rich source of polyphenolic metabolites that can ameliorate metabolic disorders such as obesity and diabetes. In this study, five species of wild Alaskan berries (Vaccinium ovalifolium , Vaccinium uliginosum , Rubus chamaemorus , Rubus spectabilis , and Empetrum nigrum) were screened for bioactivity through a community-participatory research method involving three geographically distinct tribal communities. Compositional analysis by HPLC and LC-MS(2) revealed substantial site-specific variation in anthocyanins (0.01-4.39 mg/g of FW) and proanthocyanidins (0.74-6.25 mg/g of FW) and identified A-type proanthocyanidin polymers. R. spectabilis increased expression levels of preadipocyte factor 1 (182%), and proanthocyanidin-enriched fractions from other species reduced lipid accumulation in 3T3-L1 adipocytes. Selected extracts reduced serum glucose levels in C57BL/6J mice by up to 45%. Local observations provided robust insights into effects of climatic fluctuations on berry abundance and quality, and preliminary site-specific compositional and bioactivity differences were noted, suggesting the need to monitor this Alaska Native resource as climate shifts affect the region.
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Affiliation(s)
- JOSHUA KELLOGG
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana,IL
| | - JINZHI WANG
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana,IL
| | - COURTNEY FLINT
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana,IL
| | - DAVID RIBNICKY
- Biotech Center, SEBS, Rutgers University, New Brunswick, NJ
| | - PETER KUHN
- Biotech Center, SEBS, Rutgers University, New Brunswick, NJ
| | | | - ILYA RASKIN
- Biotech Center, SEBS, Rutgers University, New Brunswick, NJ
| | - MARY ANN LILA
- Department of Natural Resources and Environmental Sciences, University of Illinois, Urbana,IL
- Department of Food, Bioprocessing, and Nutrition Sciences, Plants for Human Health Institute, North Carolina State University, Kannapolis, NC
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Gonzalez de Mejia E, Martinez-Villaluenga C, Roman M, Bringe N. Fatty acid synthase and in vitro adipogenic response of human adipocytes inhibited by α and α′ subunits of soybean β-conglycinin hydrolysates. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.09.044] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Purification, characterisation, and quantification of the soy allergen profilin (Gly m 3) in soy products. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.09.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Martinez-Villaluenga C, Rupasinghe SG, Schuler MA, Gonzalez de Mejia E. Peptides from purified soybean β-conglycinin inhibit fatty acid synthase by interaction with the thioesterase catalytic domain. FEBS J 2010; 277:1481-93. [DOI: 10.1111/j.1742-4658.2010.07577.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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López-Guel EC, Lozano-Bautista F, Mora-Escobedo R, Farrera-Rebollo RR, Chanona-Pérez J, Gutiérrez-López GF, Calderón-Domínguez G. Effect of Soybean 7S Protein Fractions, Obtained from Germinated and Nongerminated Seeds, on Dough Rheological Properties and Bread Quality. FOOD BIOPROCESS TECH 2009. [DOI: 10.1007/s11947-009-0277-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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46
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Martinez-Villaluenga C, Dia VP, Berhow M, Bringe NA, Gonzalez de Mejia E. Protein hydrolysates from beta-conglycinin enriched soybean genotypes inhibit lipid accumulation and inflammation in vitro. Mol Nutr Food Res 2009; 53:1007-18. [PMID: 19603404 DOI: 10.1002/mnfr.200800473] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Obesity is a worldwide health concern and a well recognized predictor of premature mortality associated with a state of chronic inflammation. The objective was to evaluate the effect of soy protein hydrolysates (SPH) produced from different soybean genotypes by alcalase (SAH) or simulated gastrointestinal digestion (SGIH) on lipid accumulation in 3T3-L1 adipocytes. The anti-inflammatory effect of SPH produced by alcalase on LPS-induced macrophage RAW 264.7 cell line was also investigated. SAH (100 microM) derived from soybean enriched in beta-conglycinin (BC) (up to 47% total protein) decreased lipid accumulation (33-37% inhibition) through downregulation of gene expression of lipoprotein lipase (LPL) and fatty acid synthase (FAS). SGIH (100 microM) inhibited lipid accumulation to a lesser extent (8-14% inhibition) through inhibition of LPL gene expression. SAH (5 microM) decreased the production of nitric oxide (NO) (18-35%) and prostaglandin E(2) (PGE(2)) (47-71%) and the expression of inducible nitric oxide synthase (iNOS) (31-53%) and cycloxygenase-2 (COX-2) (30-52%). This is the first investigation showing that soy hydrolysates inhibit LPS-induced iNOS/NO and COX-2/PGE(2 )pathways in macrophages. Soybeans enriched in BCs can provide hydrolysates that limit fat accumulation in fat cells and inflammatory pathways in vitro and therefore warrant further studies as a healthful food.
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