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Behringer KI, Kapeluch J, Fischer A, Hellwig M. Metabolization of Free Oxidized Aromatic Amino Acids by Saccharomyces cerevisiae. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5766-5776. [PMID: 38447044 DOI: 10.1021/acs.jafc.3c09007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
Abstract
The aromatic amino acids tryptophan, phenylalanine, and tyrosine are targets for oxidation during food processing. We investigated whether S. cerevisiae can use nonproteinogenic aromatic amino acids as substrates for degradation via the Ehrlich pathway. The metabolic fate of seven amino acids (p-, o-, m-tyrosine, 3,4-dihydroxyphenylalanine (DOPA), 3-nitrotyrosine, 3-chlorotyrosine, and dityrosine) in the presence of S. cerevisiae was assessed. All investigated amino acids except dityrosine were metabolized by yeast. The amino acids 3-nitrotyrosine and o-tyrosine were removed from the medium as fast as p-tyrosine, and m-tyrosine, 3-chlorotyrosine, and DOPA more slowly. In summary, 11 metabolites were identified by high-performance liquid chromatography-mass spectrometry (HPLC-MS/MS). DOPA, 3-nitrotyrosine, and p-tyrosine were metabolized predominantly to the Ehrlich alcohols, whereas o-tyrosine and m-tyrosine were metabolized predominantly to α-hydroxy acids. Our results indicate that nonproteinogenic aromatic amino acids can be taken up and transaminated by S. cerevisiae quite effectively but that decarboxylation and reduction to Ehrlich alcohols as the final metabolites is hampered by hydroxyl groups in the o- or m-positions of the phenyl ring. The data on amino acid metabolism were substantiated by the analysis of five commercial beer samples, which revealed the presence of hydroxytyrosol (ca. 0.01-0.1 mg/L) in beer for the first time.
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Affiliation(s)
- Kim Ina Behringer
- Institute of Food Chemistry, Technische Universität Braunschweig, Schleinitzstraße 20, 38106 Braunschweig, Germany
| | - Julia Kapeluch
- Institute of Food Chemistry, Technische Universität Braunschweig, Schleinitzstraße 20, 38106 Braunschweig, Germany
| | - Annik Fischer
- Institute of Food Chemistry, Technische Universität Braunschweig, Schleinitzstraße 20, 38106 Braunschweig, Germany
| | - Michael Hellwig
- Institute of Food Chemistry, Technische Universität Braunschweig, Schleinitzstraße 20, 38106 Braunschweig, Germany
- Chair of Special Food Chemistry, Technische Universität Dresden, Bergstraße 66, 01062 Dresden, Germany
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Liu X, Wang L, He B, Liu Q, Zhu H, Carrier AJ, Oakes KD, Zhang X. Mechanistic Insights into Myofibrillar Protein Oxidation by Fenton Chemistry Regulated by Gallic Acid. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12587-12596. [PMID: 37561819 DOI: 10.1021/acs.jafc.3c03284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Gallic acid (GA, 3,4,5-trihydroxybenzoic acid) is a widely used natural food additive of interest to food chemistry researchers, especially regarding its effects on myofibrillar protein (MP) oxidation. However, existing studies regarding MP oxidation by GA-combined with Fenton reagents are inconsistent, and the detailed mechanisms have not been fully elucidated. This work validated hydroxyl radical (HO·) as the primary oxidant for MP carbonylation; in addition, it revealed three functions of GA in the Fenton oxidation of MP. By coordination with Fe(III), GA reduces Fe(III) to generate Fe(II), which is the critical reagent for HO· generation; meanwhile, the coordination improves the availability and reactivity of Fe(III) under weakly acidic and near-neutral pH, i.e., pH 4-6. Second, the intermediates formed during GA oxidation, including semiquinone and quinone, promoted Fenton reactivity by accelerating Fe catalytic cycling. Finally, GA can scavenge HO· radicals, thus exhibiting a certain degree of antioxidant property. All three functions contribute to MP oxidation as observed in GA-containing meat.
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Affiliation(s)
- Xue Liu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Li Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Bowen He
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Qiao Liu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - He Zhu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Andrew J Carrier
- Department of Chemistry, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada
| | - Ken D Oakes
- Department of Biology, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada
| | - Xu Zhang
- Department of Chemistry, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada
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3
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Glucose boosts protein oxidation/nitration during simulated gastric digestion of myofibrillar proteins by creating a severe pro-oxidative environment. Food Chem 2022; 397:133805. [PMID: 35914463 DOI: 10.1016/j.foodchem.2022.133805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 07/21/2022] [Accepted: 07/25/2022] [Indexed: 11/24/2022]
Abstract
The severe pro-oxidative environment in the stomach promotes oxidation of dietary components. The pro-oxidant molecular mechanisms of reducing sugars on this environment are unknown. To investigate the mechanisms involved in protein oxidation and nitration during a simulated gastric digestion (porcine pepsin, 37 °C, 2 h) of meat proteins, these were exposed to several dietary reactive components namely myoglobin, glucose, glyoxal, myoglobin + glucose and myoglobin + glyoxal. Two versions of each experimental unit were prepared depending on the addition or absence of nitrite. Compared to control (only meat proteins), myoglobin + glucose showed the highest pro-oxidative and pro-nitrosative effect (p < 0.001), likely caused by an increase in ROS derived from the degradation of glucose during assay. Nitrite promoted the occurrence of protein nitration but decreased protein oxidation in myoglobin-added groups (p < 0.001) by, plausibly, stabilizing heme iron. These results indicate the relevant role of glyco-oxidation during digestion of red meat with other dietary components such as reducing sugars.
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Wang X, Yu Q, He L, Zhang Q, Ma J. Effects of nitrite concentrations on the quality and protein oxidation of salted meat. J Food Sci 2022; 87:3978-3994. [PMID: 35880694 DOI: 10.1111/1750-3841.16177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 03/17/2022] [Accepted: 04/18/2022] [Indexed: 11/26/2022]
Abstract
The objective of this study was to investigate the effects of different concentrations of sodium nitrite on the quality and protein oxidation of salted meat during 21 days of curing. The salted meat was treated with sodium nitrite at 50, 100, and 150 mg/kg for curing, and salted meat without sodium nitrite was used as a control. The results showed that in salted meat added with sodium nitrite, the carbonyl group, disulfide bond, dityrosine, surface hydrophobicity, and the transformation rate from α-helix to β-sheet were all significantly reduced, whereas the sulfhydryl group content of myofibrillar proteins was significantly increased compared to the control. Meanwhile, the total volatile basic nitrogen and aerobic plate content were significantly decreased, while both the pH and a* value were significantly increased with an increase in nitrite concentration compared to the control group. Importantly, this phenomenon was also observed in salted meat treated with low doses of sodium nitrite (50 mg/kg). In conclusion, the quality of salted beef can be improved by adding low-dose sodium nitrite to inhibit protein oxidation during the curing process. PRACTICAL APPLICATION: A low dose of sodium nitrite inhibited the rate of α-helix to β-sheet transformation of myofibrillar proteins in salted meat, reducing the exposure of hydrophobic groups and decreasing the production of protein oxidation products and TVB-N to improve the quality of salted meat. These results provided a theoretical basis and technical guidance for the application of low-dose sodium nitrite in meat processing enterprises.
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Affiliation(s)
- Xinyue Wang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Qunli Yu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Long He
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Qing Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Jibing Ma
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
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Peng R, Wang L, Yu P, Carrier AJ, Oakes KD, Zhang X. Exacerbated Protein Oxidation and Tyrosine Nitration through Nitrite-Enhanced Fenton Chemistry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:353-359. [PMID: 34963286 DOI: 10.1021/acs.jafc.1c04591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Nitrite is a common additive used during meat curing to prevent microbial contamination and retain an attractive red color in the product. However, the effects of nitrite on Fenton reactions catalyzed by free iron in meat products are not well understood, although such processes can induce protein oxidation and nitration, affecting the nutritional and aesthetic quality of meat products. This contribution reveals the mechanism through which nitrite affects Fenton reactions that generate reactive nitrogen and oxygen species by increasing the availability of Fe3+, facilitating its reduction and stabilizing Fe2+, and accelerating Fe3+/Fe2+ cycling, leading to exacerbated oxidative and nitrosative stress on proteins, with implications not only for meat processing but also in many biological and environmental processes due to the ubiquitous presence of iron, hydrogen peroxide, and nitrite in nature.
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Affiliation(s)
- Rui Peng
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Li Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Pinting Yu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
| | - Andrew J Carrier
- Department of Chemistry, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada
| | - Ken D Oakes
- Department of Biology, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada
| | - Xu Zhang
- Department of Chemistry, Cape Breton University, Sydney, Nova Scotia B1P 6L2, Canada
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Estaras M, Gonzalez-Portillo MR, Martinez R, Garcia A, Estevez M, Fernandez-Bermejo M, Mateos JM, Vara D, Blanco-Fernández G, Lopez-Guerra D, Roncero V, Salido GM, Gonzalez A. Melatonin Modulates the Antioxidant Defenses and the Expression of Proinflammatory Mediators in Pancreatic Stellate Cells Subjected to Hypoxia. Antioxidants (Basel) 2021; 10:antiox10040577. [PMID: 33918063 PMCID: PMC8070371 DOI: 10.3390/antiox10040577] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/01/2021] [Accepted: 04/05/2021] [Indexed: 12/11/2022] Open
Abstract
Pancreatic stellate cells (PSC) play a major role in the formation of fibrotic tissue in pancreatic tumors. On its side, melatonin is a putative therapeutic agent for pancreatic cancer and inflammation. In this work, the actions of melatonin on PSC subjected to hypoxia were evaluated. Reactive oxygen species (ROS) generation reduced (GSH) and oxidized (GSSG) levels of glutathione, and protein and lipid oxidation were analyzed. The phosphorylation of nuclear factor erythroid 2-related factor (Nrf2), nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB), and the regulatory protein nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor-alpha (IκBα) was studied. The expression of Nrf2-regulated antioxidant enzymes, superoxide dismutase (SOD) enzymes, cyclooxygenase 2 (COX-2), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) were also studied. Total antioxidant capacity (TAC) was assayed. Finally, cell viability was studied. Under hypoxia and in the presence of melatonin generation of ROS was observed. No increases in the oxidation of proteins or lipids were detected. The phosphorylation of Nrf2 and the expression of the antioxidant enzymes catalytic subunit of glutamate-cysteine ligase, catalase, NAD(P)H-quinone oxidoreductase 1, heme oxygenase-1, SOD1, and of SOD2 were augmented. The TAC was increased. Protein kinase C was involved in the effects of melatonin. Melatonin decreased the GSH/GSSG ratio at the highest concentration tested. Cell viability dropped in the presence of melatonin. Finally, melatonin diminished the phosphorylation of NF-kB and the expression of COX-2, IL-6, and TNF-α. Our results indicate that melatonin, at pharmacological concentrations, modulates the red-ox state, viability, and the expression of proinflammatory mediators in PSC subjected to hypoxia.
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Affiliation(s)
- Matias Estaras
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 10003 Caceres, Spain; (M.E.); (M.R.G.-P.); (G.M.S.)
| | - Manuel R. Gonzalez-Portillo
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 10003 Caceres, Spain; (M.E.); (M.R.G.-P.); (G.M.S.)
| | - Remigio Martinez
- Department of Animal Health, Veterinary Faculty, University of Extremadura, 10003 Caceres, Spain;
| | - Alfredo Garcia
- Department of Animal Production, CICYTEX-La Orden, 06187 Badajoz, Spain;
| | - Mario Estevez
- IPROCAR Research Institute, Food Technology, University of Extremadura, 10003 Cáceres, Spain;
| | - Miguel Fernandez-Bermejo
- Department of Gastroenterology, San Pedro de Alcantara Hospital, 10003 Caceres, Spain; (M.F.-B.); (J.M.M.); (D.V.)
| | - Jose M. Mateos
- Department of Gastroenterology, San Pedro de Alcantara Hospital, 10003 Caceres, Spain; (M.F.-B.); (J.M.M.); (D.V.)
| | - Daniel Vara
- Department of Gastroenterology, San Pedro de Alcantara Hospital, 10003 Caceres, Spain; (M.F.-B.); (J.M.M.); (D.V.)
| | - Gerardo Blanco-Fernández
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, 06080 Badajoz, Spain; (G.B.-F.); (D.L.-G.)
| | - Diego Lopez-Guerra
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, 06080 Badajoz, Spain; (G.B.-F.); (D.L.-G.)
| | - Vicente Roncero
- Unit of Histology and Pathological Anatomy, Veterinary Faculty, University of Extremadura, 10003 Caceres, Spain;
| | - Gines M. Salido
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 10003 Caceres, Spain; (M.E.); (M.R.G.-P.); (G.M.S.)
| | - Antonio Gonzalez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, 10003 Caceres, Spain; (M.E.); (M.R.G.-P.); (G.M.S.)
- Correspondence:
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7
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In vitro and in vivo digestion of red cured cooked meat: oxidation, intestinal microbiota and fecal metabolites. Food Res Int 2021; 142:110203. [PMID: 33773678 DOI: 10.1016/j.foodres.2021.110203] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 01/15/2021] [Accepted: 01/30/2021] [Indexed: 12/12/2022]
Abstract
Mechanisms explaining epidemiological associations between red (processed) meat consumption and chronic disease risk are not yet elucidated, but may involve oxidative reactions, microbial composition alterations, inflammation and/or the formation of toxic bacterial metabolites. First, in vitro gastrointestinal digestion of 23 cooked beef-lard minces, to which varying doses of nitrite salt (range 0-40 g/kg) and sodium ascorbate (range 0-2 g/kg) were added, showed that nitrite salt decreased protein carbonylation up to 3-fold, and inhibited lipid oxidation, demonstrated by up to 4-fold lower levels of 'thiobarbituric acid reactive substances', 32-fold lower 4-hydroxynonenal, and 21-fold lower hexanal values. The use of ascorbate increased the antioxidant effect of low nitrite salt levels, whereas it slightly increased protein carbonylation at higher doses of nitrite salt. The addition of a low dose of ascorbate without nitrite salt slightly promoted oxidation during digestion, whereas higher doses had varying antioxidant effects. Second, 40 rats were fed a diet of cooked chicken- or beef-lard minces, either or not cured, for three weeks. Beef, compared to chicken, consumption increased lipid oxidation (2- to 4-fold) during digestion, and gut protein fermentation (cecal iso-butyrate, (iso-)valerate, and fecal indole, cresol), but oxidative stress and inflammation were generally not affected. Cured, compared to fresh, meat consumption significantly increased stomach protein carbonylation (+16%), colonic Ruminococcaceae (2.1-fold) and cecal propionate (+18%), whereas it decreased cecal butyrate (-25%), fecal phenol (-69%) and dimethyl disulfide (-61%) levels. Fecal acetaldehyde and diacetyl levels were increased in beef-fed rats by 2.8-fold and 5.9-fold respectively, and fecal carbon disulfide was 4-fold higher in rats consuming cured beef vs. fresh chicken. Given their known toxicity, the role of acetaldehyde and carbon disulfide in the relation between meat consumption and health should be investigated in future studies.
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Estaras M, Ameur FZ, Estévez M, Díaz-Velasco S, Gonzalez A. The lysine derivative aminoadipic acid, a biomarker of protein oxidation and diabetes-risk, induces production of reactive oxygen species and impairs trypsin secretion in mouse pancreatic acinar cells. Food Chem Toxicol 2020; 145:111594. [PMID: 32738373 DOI: 10.1016/j.fct.2020.111594] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 02/06/2023]
Abstract
We have examined the effects of α-aminoadipic acid, an oxidized derivative from the amino acid lysine, on the physiology of mouse pancreatic acinar cells. Changes in intracellular free-Ca2+ concentration, the generation of reactive oxygen species, the levels of carbonyls and thiobarbituric-reactive substances, cellular metabolic activity and trypsin secretion were studied. Stimulation of mouse pancreatic cells with cholecystokinin (1 nM) evoked a transient increase in [Ca2+]i. In the presence of α-amoniadipic acid increases in [Ca2+]i were observed. In the presence of the compound, cholecystokinin induced a Ca2+ response that was smaller compared with that observed when cholecystokinin was applied alone. Stimulation of cells with cholecystokinin in the absence of Ca2+ in the extracellular medium abolished further mobilization of Ca2+ by α-aminoadipic acid. In addition, potential pro-oxidant conditions, reflected as increases in ROS generation, oxidation of proteins and lipids, were noted in the presence of α-aminoadipic acid. Finally, the compound impaired trypsin secretion induced by the secretagogue cholecystokinin. We conclude that the oxidized derivative from the amino acid lysine induces pro-oxidative conditions and the impairment of enzyme secretion in pancreatic acinar cells. α-aminoadipic acid thus creates a situation that could potentially lead to disorders in the physiology of the pancreas.
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Affiliation(s)
- Matias Estaras
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Cáceres, Spain
| | - Fatma Z Ameur
- Laboratoire de Physiologie de la Nutrition et de Sécurité Alimentaire, Université d'Oran1 Ahmed BenBella, Algeria
| | - Mario Estévez
- IPROCAR Research Institute, TECAL Research Group, University of Extremadura, 10003, Cáceres, Spain
| | - Silvia Díaz-Velasco
- IPROCAR Research Institute, TECAL Research Group, University of Extremadura, 10003, Cáceres, Spain
| | - Antonio Gonzalez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Cáceres, Spain.
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Commercial luncheon meat products and their in vitro gastrointestinal digests contain more protein carbonyl compounds but less lipid oxidation products compared to fresh pork. Food Res Int 2020; 136:109585. [PMID: 32846614 DOI: 10.1016/j.foodres.2020.109585] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 01/29/2023]
Abstract
Because of the large diversity in processed meat products and the potential involvement of oxidation processes in the association between red and processed meat consumption and chronic diseases, the concentration of oxidation products after gastrointestinal digestion of commercial luncheon meat products was investigated. A broad spectrum of meat products (n = 24), displaying large variation in macro- and micronutrient composition and processing procedures, was digested in vitro by simulating digestion fluids of the human gastrointestinal tract. Lipid and protein oxidation was assessed in the meat products before digestion and in the corresponding digests by measurement of free malondialdehyde, 4-hydroxy-2-nonenal, hexanal and protein carbonyl compounds. Compared to an unprocessed cooked pork mince, that was included as a reference in the digestion experiment, levels of lipid oxidation products were low in the digests of most meat products. Only the digests of Parma ham had slightly higher or comparable levels as the reference pork. In contrast, protein carbonyl compounds were comparable or up to 6 times higher in the processed meat products compared to the reference pork. Particularly raw-cooked and precooked-cooked meat products and corresponding digests had higher protein carbonyl levels, but also lower protein contents and higher fat to protein ratios. In conclusion, most luncheon meat products and corresponding digests contained lower amounts of free lipid oxidation products, but more protein carbonyl compounds compared to the reference pork.
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Estaras M, Martinez-Morcillo S, García A, Martinez R, Estevez M, Perez-Lopez M, Miguez MP, Fernandez-Bermejo M, Mateos JM, Vara D, Blanco G, Lopez D, Roncero V, Salido GM, Gonzalez A. Pancreatic stellate cells exhibit adaptation to oxidative stress evoked by hypoxia. Biol Cell 2020; 112:280-299. [PMID: 32632968 DOI: 10.1111/boc.202000020] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 05/31/2020] [Accepted: 06/04/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND INFORMATION Pancreatic stellate cells play a key role in the fibrosis that develops in diseases such as pancreatic cancer. In the growing tumour, a hypoxia condition develops under which cancer cells are able to proliferate. The growth of fibrotic tissue contributes to hypoxia. In this study, the effect of hypoxia (1% O2 ) on pancreatic stellate cells physiology was investigated. Changes in intracellular free-Ca2+ concentration, mitochondrial free-Ca2+ concentration and mitochondrial membrane potential were studied by fluorescence techniques. The status of enzymes responsible for the cellular oxidative state was analyzed by quantitative reverse transcription-polymerase chain reaction, high-performance liquid chromatography, spectrophotometric and fluorimetric methods and by Western blotting analysis. Cell viability and proliferation were studied by crystal violet test, 5-bromo-2-deoxyuridine cell proliferation test and Western blotting analysis. Finally, cell migration was studied employing the wound healing assay. RESULTS Hypoxia induced an increase in intracellular and mitochondrial free-Ca2+ concentration, whereas mitochondrial membrane potential was decreased. An increase in mitochondrial reactive oxygen species production was observed. Additionally, an increase in the oxidation of proteins and lipids was detected. Moreover, cellular total antioxidant capacity was decreased. Increases in the expression of superoxide dismutase 1 and 2 were observed and superoxide dismutase activity was augmented. Hypoxia evoked a decrease in the oxidized/reduced glutathione ratio. An increase in the phosphorylation of nuclear factor erythroid 2-related factor and in expression of the antioxidant enzymes catalytic subunit of glutamate-cysteine ligase, catalase, NAD(P)H-quinone oxidoreductase 1 and heme oxygenase-1 were detected. The expression of cyclin A was decreased, whereas expression of cyclin D and the content of 5-bromo-2-deoxyuridine were increased. This was accompanied by an increase in cell viability. The phosphorylation state of c-Jun NH2 -terminal kinase was increased, whereas that of p44/42 and p38 was decreased. Finally, cells subjected to hypoxia maintained migration ability. CONCLUSIONS AND SIGNIFICANCE Hypoxia creates pro-oxidant conditions in pancreatic stellate cells to which cells adapt and leads to increased viability and proliferation.
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Affiliation(s)
- Matias Estaras
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
| | | | - Alfredo García
- Department of Animal Production, Cicytex-La Orden, Badajoz, Spain
| | - Remigio Martinez
- Department of Animal Health, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | - Mario Estevez
- IPROCAR Research Institute, Food Technology, University of Extremadura, Caceres, 10003, Spain
| | - Marcos Perez-Lopez
- Unit of Toxicology, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | - Maria P Miguez
- Unit of Toxicology, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | | | - Jose M Mateos
- Department of Gastroenterology, San Pedro de Alcantara Hospital, Caceres, Spain
| | - Daniel Vara
- Department of Gastroenterology, San Pedro de Alcantara Hospital, Caceres, Spain
| | - Gerardo Blanco
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, Badajoz, Spain
| | - Diego Lopez
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, Badajoz, Spain
| | - Vicente Roncero
- Unit of Histology and Pathological Anatomy, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | - Gines M Salido
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
| | - Antonio Gonzalez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
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11
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Gonzalez A, Estaras M, Martinez-Morcillo S, Martinez R, García A, Estévez M, Santofimia-Castaño P, Tapia JA, Moreno N, Pérez-López M, Míguez MP, Blanco-Fernández G, Lopez-Guerra D, Fernandez-Bermejo M, Mateos JM, Vara D, Roncero V, Salido GM. Melatonin modulates red-ox state and decreases viability of rat pancreatic stellate cells. Sci Rep 2020; 10:6352. [PMID: 32286500 PMCID: PMC7156707 DOI: 10.1038/s41598-020-63433-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/30/2020] [Indexed: 12/13/2022] Open
Abstract
In this work we have studied the effects of pharmacological concentrations of melatonin (1 µM-1 mM) on pancreatic stellate cells (PSC). Cell viability was analyzed by AlamarBlue test. Production of reactive oxygen species (ROS) was monitored following CM-H2DCFDA and MitoSOX Red-derived fluorescence. Total protein carbonyls and lipid peroxidation were analyzed by HPLC and spectrophotometric methods respectively. Mitochondrial membrane potential (ψm) was monitored by TMRM-derived fluorescence. Reduced (GSH) and oxidized (GSSG) levels of glutathione were determined by fluorescence techniques. Quantitative reverse transcription-polymerase chain reaction was employed to detect the expression of Nrf2-regulated antioxidant enzymes. Determination of SOD activity and total antioxidant capacity (TAC) were carried out by colorimetric methods, whereas expression of SOD was analyzed by Western blotting and RT-qPCR. The results show that melatonin decreased PSC viability in a concentration-dependent manner. Melatonin evoked a concentration-dependent increase in ROS production in the mitochondria and in the cytosol. Oxidation of proteins was detected in the presence of melatonin, whereas lipids oxidation was not observed. Depolarization of ψm was noted with 1 mM melatonin. A decrease in the GSH/GSSG ratio was observed, that depended on the concentration of melatonin used. A concentration-dependent increase in the expression of the antioxidant enzymes catalytic subunit of glutamate-cysteine ligase, catalase, NAD(P)H-quinone oxidoreductase 1 and heme oxygenase-1 was detected in cells incubated with melatonin. Finally, decreases in the expression and in the activity of superoxide dismutase were observed. We conclude that pharmacological concentrations melatonin modify the redox state of PSC, which might decrease cellular viability.
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Affiliation(s)
- Antonio Gonzalez
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain.
| | - Matias Estaras
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
| | | | - Remigio Martinez
- Department of Animal Health, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | - Alfredo García
- Department of Animal Production, CICYTEX-La Orden, Guadajira, Badajoz, Spain
| | - Mario Estévez
- IPROCAR Research Institute, Food Technology, University of Extremadura, 10003, Cáceres, Spain
| | - Patricia Santofimia-Castaño
- Centre de Recherche en Cancérologie de Marseille, INSERM U1068, CNRS UMR 7258, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, Marseille, France
| | - Jose A Tapia
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
| | - Noelia Moreno
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
| | - Marcos Pérez-López
- Unit of Toxicology, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | - María P Míguez
- Unit of Toxicology, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | - Gerardo Blanco-Fernández
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, Badajoz, Spain
| | - Diego Lopez-Guerra
- Hepatobiliary-Pancreatic Surgery and Liver Transplant Unit, Infanta Cristina Hospital, Badajoz, Spain
| | | | - Jose M Mateos
- Department of Gastroenterology, San Pedro de Alcantara Hospital, Caceres, Spain
| | - Daniel Vara
- Department of Gastroenterology, San Pedro de Alcantara Hospital, Caceres, Spain
| | - Vicente Roncero
- Unit of Histology and Pathological Anatomy, Veterinary Faculty, University of Extremadura, Caceres, Spain
| | - Gines M Salido
- Institute of Molecular Pathology Biomarkers, University of Extremadura, Caceres, Spain
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12
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Ozyurt VH, Otles S. Investigation of the effect of sodium nitrite on protein oxidation markers in food protein suspensions. J Food Biochem 2020; 44:e13152. [PMID: 31950521 DOI: 10.1111/jfbc.13152] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/08/2019] [Accepted: 01/02/2020] [Indexed: 11/29/2022]
Abstract
The aim of this study is to investigate the effect of sodium nitrite (NaNO2 ) on protein oxidation and the use of 3-nitrotyrosine (3NT) as a protein oxidation marker in suspensions of the food protein. Food proteins, namely bovine serum albumin, casein, and myofibrillar protein, were suspended in 100 mM sodium phosphate buffer and nitrated with 25 µM iron (III) chloride, 2.5 mM hydrogen peroxide, and 150 mg/kg NaNO2 at 37°C for a period of 24 hr. The food protein suspensions were analyzed at different sampling periods for the loss of tryptophan (TRY) residues as well as the formation of Schiff bases (SBs), protein carbonyls, 3NT, and dityrosine (DT). It was found that NaNO2 has pro-oxidant activity in NaNO2 -added food protein suspensions due to the increased amounts of SBs, protein carbonyls, 3NT, and DT as well as decreased TRY fluorescence. Positive correlations between the 3NT and other protein oxidation markers except for TRY fluorescence were found in NaNO2 -added food protein suspensions. In conclusion, these findings on the detection of 3NT indicate that it might be a useful tool as a new protein oxidation biomarker in food samples. PRACTICAL APPLICATIONS: Sodium nitrite (NaNO2 ) supports protein oxidation in different food protein suspension. 3-nitrotyrosine (3NT) was found in food protein suspensions and can be a potential biomarker for protein nitration in food sample due to potential relationship between 3NT and other oxidation markers. The results showed that this study has formed novel insight into interaction between NaNO2 and food proteins and indicate that it might affect the food quality and its nutritional value. Moreover, the relationship between protein oxidation/nitration and food quality as well as the comprehension of the scientific and technological meaning of these phenomena has been hindered because of the lack of knowledge about the basic chemistry behind the protein oxidation and nitration pathways. For the clarification of these phenomena, further studies are still needed.
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Affiliation(s)
- Vasfiye Hazal Ozyurt
- Faculty of Engineering, Department of Food Engineering, Near East University, Lefkosa, Turkey.,Faculty of Engineering, Department of Food Engineering, Ege University, Izmir, Turkey
| | - Semih Otles
- Faculty of Engineering, Department of Food Engineering, Ege University, Izmir, Turkey
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13
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Immune Effects of the Nitrated Food Allergen Beta-Lactoglobulin in an Experimental Food Allergy Model. Nutrients 2019; 11:nu11102463. [PMID: 31618852 PMCID: PMC6835712 DOI: 10.3390/nu11102463] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/08/2019] [Accepted: 10/12/2019] [Indexed: 12/18/2022] Open
Abstract
Food proteins may get nitrated by various exogenous or endogenous mechanisms. As individuals might get recurrently exposed to nitrated proteins via daily diet, we aimed to investigate the effect of repeatedly ingested nitrated food proteins on the subsequent immune response in non-allergic and allergic mice using the milk allergen beta-lactoglobulin (BLG) as model food protein in a mouse model. Evaluating the presence of nitrated proteins in food, we could detect 3-nitrotyrosine (3-NT) in extracts of different foods and in stomach content extracts of non-allergic mice under physiological conditions. Chemically nitrated BLG (BLGn) exhibited enhanced susceptibility to degradation in simulated gastric fluid experiments compared to untreated BLG (BLGu). Gavage of BLGn to non-allergic animals increased interferon-γ and interleukin-10 release of stimulated spleen cells and led to the formation of BLG-specific serum IgA. Allergic mice receiving three oral gavages of BLGn had higher levels of mouse mast cell protease-1 (mMCP-1) compared to allergic mice receiving BLGu. Regardless of the preceding immune status, non-allergic or allergic, repeatedly ingested nitrated food proteins seem to considerably influence the subsequent immune response.
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14
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Zhang Y, Zhao G, Cheng P, Yan X, Li Y, Cheng D, Wang R, Chen J, Shen W. Nitrite accumulation during storage of tomato fruit as prevented by hydrogen gas. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2019. [DOI: 10.1080/10942912.2019.1651737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Yihua Zhang
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, China
| | - Gan Zhao
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Pengfei Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Xinyu Yan
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ying Li
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Dan Cheng
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
| | - Ren Wang
- Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Jun Chen
- Shennongjia Shi Zhen Water Structure Co., Ltd., Shennongjia, China
| | - Wenbiao Shen
- College of Life Sciences, Laboratory Center of Life Sciences, Nanjing Agricultural University, Nanjing, China
- Center of Hydrogen Science, Shanghai Jiao Tong University, Shanghai, China
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15
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Szumska M, Damasiewicz-Bodzek A, Czubilińska J, Długaszek M, Gawlik K, Krywult A, Synowiec K, Wielkoszyński T, Tyrpień-Golder K. Pregnancy-Associated Plasma Protein A (PAPP-A) Concentration in Population of Healthy Young People: Interactions with Tobacco Smoke and Anti-oxidative Status. Cardiovasc Toxicol 2019; 19:120-128. [PMID: 30302668 PMCID: PMC6469831 DOI: 10.1007/s12012-018-9479-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pregnancy-associated plasma protein A (PAPP-A) is a high-molecular zinc-binding metalloproteinase that was first detected in the serum of pregnant women. It can also be detected in men and non-pregnant women. Recently, a growing interest in determining the concentration of PAPP-A as a marker of oxidative stress and atherosclerotic processes has been observed. Among the factors that could potentially influence the PAPP-A formation is the exposure to tobacco smoke. Some components of tobacco smoke have an immediate effect on the body and also direct influence on the cardiovascular system. The aim of this study was to evaluate the relation between PAPP-A concentration and either passive or active exposure to tobacco smoke in the population of medicine students (n = 152). The relation between PAPP-A concentration and chosen markers of inflammatory response and anti-oxidative processes was analyzed. The samples of serum, urine, and saliva were collected and main nicotine metabolites in urine samples were determined using ELISA technique. Comparison of the PAPP-A concentrations in the study group revealed that in the group of active smokers, the concentration of the protein was significantly higher than in the group of passive smokers (p = .04) and the group of not-exposed students (p = .006). PAPP-A concentration showed significant positive correlation with the values of FRAP and main nicotine metabolites. The evident influence of both active and passive tobacco smoke exposure on PAPP-A levels in the studied population of young people who in general are not included in the group of high-risk cardiovascular incidents, shows how important early prevention of anti-health behaviors is.
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Affiliation(s)
- Magdalena Szumska
- Department of Chemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland.
| | - Aleksandra Damasiewicz-Bodzek
- Department of Chemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland
| | - Justyna Czubilińska
- Students Research Group of Chair and Department of Chemistry, Zabrze, Poland
| | - Michał Długaszek
- Students Research Group of Chair and Department of Chemistry, Zabrze, Poland
| | - Kaja Gawlik
- Students Research Group of Chair and Department of Chemistry, Zabrze, Poland
| | - Anna Krywult
- Students Research Group of Chair and Department of Chemistry, Zabrze, Poland
| | - Konrad Synowiec
- Students Research Group of Chair and Department of Chemistry, Zabrze, Poland
| | - Tomasz Wielkoszyński
- Analytical-Bacteriological Laboratory, NZOZ, Pulmonology Unit, Tarnowskie Góry, Poland
| | - Krystyna Tyrpień-Golder
- Department of Chemistry, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Silesia, Katowice, Poland
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16
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Estévez M, Xiong Y. Intake of Oxidized Proteins and Amino Acids and Causative Oxidative Stress and Disease: Recent Scientific Evidences and Hypotheses. J Food Sci 2019; 84:387-396. [DOI: 10.1111/1750-3841.14460] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/26/2018] [Accepted: 01/13/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Mario Estévez
- Meat and Meat Products Research Institute, TECAL Research Group; Univ. of Extremadura; Avda. Universidad s/n 10003 Cáceres Spain
| | - Youling Xiong
- Depart. of Animal and Food Sciences; Univ. of Kentucky; Lexington KY 40546-0215 U.S.A
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17
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Kuchakulla M, Masterson T, Arora H, Kulandavelu S, Ramasamy R. Effect of nitroso-redox imbalance on male reproduction. Transl Androl Urol 2018; 7:968-977. [PMID: 30505735 PMCID: PMC6256041 DOI: 10.21037/tau.2018.08.14] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Reactive oxygen species (ROS) and reactive nitrogen species (RNS) are byproducts of normal metabolic processes. They are necessary for normal cellular function and are kept in balance by antioxidant mechanisms. Alterations in levels of ROS and RNS can lead to nitroso-redox imbalance that in turn can negatively affect male reproduction. Strategies to decrease ROS/RNS involve evasion of exposures (smoking, meat intake, pollution, calorie-dense diet), managing lifestyle, and increasing the consumption of antioxidants (vitamin C, vitamin E, alpha-lipoic acid, taurine, quercetin). Targeted therapies focusing on nitroso-redox imbalance can be critical for treatment of male reproductive dysfunction. This review outlines endogenous and exogenous sources of ROS/RNS, adverse effect on male reproduction, and strategies to control nitroso-redox imbalance.
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Affiliation(s)
- Manish Kuchakulla
- 1Department of Urology, 2The Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Thomas Masterson
- 1Department of Urology, 2The Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Himanshu Arora
- 1Department of Urology, 2The Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Shathiyah Kulandavelu
- 1Department of Urology, 2The Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
| | - Ranjith Ramasamy
- 1Department of Urology, 2The Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, Miami, FL, USA
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18
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Pork proteins oxidative modifications under the influence of varied time-temperature thermal treatments: A chemical and redox proteomics assessment. Meat Sci 2018; 140:134-144. [DOI: 10.1016/j.meatsci.2018.03.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 03/09/2018] [Accepted: 03/09/2018] [Indexed: 12/21/2022]
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19
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Determination of 3-nitrotyrosine in food protein suspensions. Talanta 2017; 171:81-89. [DOI: 10.1016/j.talanta.2017.04.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 04/19/2017] [Accepted: 04/25/2017] [Indexed: 12/30/2022]
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20
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Berardo A, De Maere H, Stavropoulou DA, Rysman T, Leroy F, De Smet S. Effect of sodium ascorbate and sodium nitrite on protein and lipid oxidation in dry fermented sausages. Meat Sci 2016; 121:359-364. [PMID: 27424306 DOI: 10.1016/j.meatsci.2016.07.003] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 07/01/2016] [Accepted: 07/07/2016] [Indexed: 02/07/2023]
Abstract
The effects of sodium nitrite and ascorbate on lipid and protein oxidation were studied during the ripening process of dry fermented sausages. Samples were taken at day 0, 2, 8, 14, 21 and 28 of ripening to assess lipid (malondialdehyde) and protein (carbonyls and sulfhydryl groups) oxidation. Sodium ascorbate and nitrite were separately able to reduce the formation of malondialdehyde. Their combined addition resulted in higher amounts of carbonyl compounds compared to their separate addition or the treatment without any of both compounds. Moreover, sodium nitrite limited the formation of γ-glutamic semialdehyde whereas sodium ascorbate showed a pro-oxidant effect. A loss of thiol groups was observed during ripening, which was not affected by the use of sodium ascorbate nor sodium nitrite. In conclusion, sodium nitrite and ascorbate affected protein and lipid oxidation in different manners. The possible pro-oxidant effect of their combined addition on carbonyl formation might influence the technological and sensory properties of these products.
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Affiliation(s)
- A Berardo
- Laboratory for Animal Nutrition and Animal Product Quality, Faculty of Bioscience Engineering, Ghent University, Proefhoevestraat 10, Melle 9090, Belgium
| | - H De Maere
- Research Group for Technology and Quality of Animal Products, Department M(2)S, member of LFoRCe, KU Leuven Technology Campus, Gebroeders De Smetstraat 1, Ghent B-9000, Belgium
| | - D A Stavropoulou
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bio-engineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - T Rysman
- Technology and Food Science Unit, Institute for Agricultural and Fisheries Research (ILVO), Brusselsesteenweg 370, Melle, 9090, Belgium
| | - F Leroy
- Research Group of Industrial Microbiology and Food Biotechnology (IMDO), Faculty of Sciences and Bio-engineering Sciences, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium
| | - S De Smet
- Laboratory for Animal Nutrition and Animal Product Quality, Faculty of Bioscience Engineering, Ghent University, Proefhoevestraat 10, Melle 9090, Belgium.
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21
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Influence of sodium nitrite on protein oxidation and nitrosation of sausages subjected to processing and storage. Meat Sci 2016; 116:260-7. [DOI: 10.1016/j.meatsci.2016.01.017] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Revised: 01/24/2016] [Accepted: 01/30/2016] [Indexed: 12/17/2022]
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22
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Armenteros M, Morcuende D, Ventanas J, Estévez M. The application of natural antioxidants via brine injection protects Iberian cooked hams against lipid and protein oxidation. Meat Sci 2016; 116:253-9. [DOI: 10.1016/j.meatsci.2016.02.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 02/15/2016] [Accepted: 02/16/2016] [Indexed: 12/20/2022]
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23
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Feng X, Li C, Ullah N, Hackman RM, Chen L, Zhou G. Potential Biomarker of Myofibrillar Protein Oxidation in Raw and Cooked Ham: 3-Nitrotyrosine Formed by Nitrosation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:10957-10964. [PMID: 26593775 DOI: 10.1021/acs.jafc.5b04107] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The stability of cured meat products is increased by the protection of its proteins from oxidation by sodium nitrite (NaNO2) during processing. This study investigated the effects of NaNO2 (0, 50, 100, 200, and 400 mg/kg) on the physiochemical and structural characteristics of myofibrillar protein (MP) in raw and cooked ham. The NaNO2 showed a dose-dependent antioxidant effect, by inhibiting carbonyl formation, dityrosine formation, and denaturation of MP, and a nitrosative effect, through the formation of 3-Nitrotyrosine (3-NT). The 3-NT content within MP of raw ham had distinct negative correlations with sulfhydryl content and surface hydrophobicity. The 3-NT content within MP of cooked ham had significantly negative correlations with carbonyl, sulfhydryl content and turbidity and had significantly positive correlations with disulfide content. These results indicated that 3-NT may be a potential marker for protein oxidation in raw and cooked cured meat products.
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Affiliation(s)
- Xianchao Feng
- College of Food Science and Engineering, Northwest A&F University , No. 28 Xinong Road, Yangling, Shaanxi 712100, China
- National Center of Meat Quality and Safety Control, Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University , Nanjing, Jiangsu 210095, China
| | - Chenyi Li
- College of Food Science and Engineering, Northwest A&F University , No. 28 Xinong Road, Yangling, Shaanxi 712100, China
| | - Niamat Ullah
- College of Food Science and Engineering, Northwest A&F University , No. 28 Xinong Road, Yangling, Shaanxi 712100, China
- Department of Human Nutrition, The University Of Agriculture Peshawar , Khyber Pakhtunkhwa 25000, Pakistan
| | - Robert M Hackman
- Department of Nutrition, University of California-Davis , One Shields Avenue, Davis, California 95616, United States
| | - Lin Chen
- College of Food Science and Engineering, Northwest A&F University , No. 28 Xinong Road, Yangling, Shaanxi 712100, China
| | - Guanghong Zhou
- National Center of Meat Quality and Safety Control, Key Laboratory of Meat Processing and Quality Control, Ministry of Education, College of Food Science and Technology, Nanjing Agricultural University , Nanjing, Jiangsu 210095, China
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24
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Abstract
Poultry and poultry meat are particularly susceptible to oxidative reactions. Oxidation processes have been for decades the focus of animal and meat scientists owing to the negative impact of these reactions on animal growth, performance, and food quality. Lipid oxidation has been recognized a major threat to the quality of processed poultry products. The recent discoveries on the occurrence of protein oxidation in muscle foods have increased the scientific and technological interest in a topic that broadens the horizons of food biochemistry into innovative fields. Furthermore, in recent years we have witnessed a growing interest in consumers on the impact of diet and oxidation on health and aging. Hence, the general description of oxidative reactions as harmful phenomena goes beyond the actual impact on animal production and food quality and reaches the potential influence of oxidized foods on consumer health. Likewise, the current antioxidant strategies aim for the protection of the living tissues, the food systems, and a potential health benefit in the consumer upon ingestion. Along these lines, the application of phytochemicals and other microelements (Se, Cu) with antioxidant potential in the feeds or directly in the meat product are strategies of substantial significance. The present paper reviews in a concise manner the most relevant and novel aspects of the mechanisms and consequences of oxidative reactions in poultry and poultry meat, and describes current antioxidant strategies against these undesirable reactions.
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Affiliation(s)
- M Estévez
- IPROCAR Research Institute. Food Technology, University of Extremadura, 10003, Cáceres, Spain
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25
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Vossen E, De Smet S. Protein oxidation and protein nitration influenced by sodium nitrite in two different meat model systems. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:2550-2556. [PMID: 25700017 DOI: 10.1021/jf505775u] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The effect of NaNO2 on protein oxidation was studied in isolated myofibrillar protein isolates (100 and 1000 mg NaNO2/kg) and in porcine patties (18 and 180 mg NaNO2/kg). In addition, the potential use of 3-nitrotyrosine as a specific marker for reactive nitrogen species mediated nitration was investigated. Overall, no distinct pro- or antioxidant effect of NaNO2 against carbonyl formation was observed in the isolates or in the patties. However, in the isolates, higher protein carbonyl concentrations were found in the NaNO2-treated samples compared to the treatment without added nitrite immediately after the addition of oxidants and NaNO2. Addition of 180 mg NaNO2/kg to patties resulted in significantly lower thiol concentrations at 4 and 7 days of illuminated chilled display compared to the treatments with 0 and 18 mg/kg NaNO2, whereas no effect was observed in the isolates. No effect of NaNO2 was found on the protein solubility of either meat model. 3-Nitrotyrosine was present in all samples, but no clear effect of NaNO2 addition or oxidation time was observed.
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Affiliation(s)
- Els Vossen
- Laboratory for Animal Nutrition and Animal Product Quality, Department of Animal Production, Faculty of Bioscience Engineering, Ghent University , Proefhoevestraat 10, 9090 Melle, Belgium
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26
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Soladoye O, Juárez M, Aalhus J, Shand P, Estévez M. Protein Oxidation in Processed Meat: Mechanisms and Potential Implications on Human Health. Compr Rev Food Sci Food Saf 2015; 14:106-122. [DOI: 10.1111/1541-4337.12127] [Citation(s) in RCA: 299] [Impact Index Per Article: 33.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/04/2014] [Indexed: 01/07/2023]
Affiliation(s)
- O.P. Soladoye
- Dept. of Food and Bioproduct Science, College of Agriculture and Bioresources; Univ. of Saskatchewan; 51 Campus Drive S7N 5A Saskatoon Canada
- Lacombe Research Centre; Agriculture and Agri-Food Canada; 6000 C and E Trail T4L 1W1 Lacombe Alberta Canada
| | - M.L. Juárez
- Lacombe Research Centre; Agriculture and Agri-Food Canada; 6000 C and E Trail T4L 1W1 Lacombe Alberta Canada
| | - J.L. Aalhus
- Lacombe Research Centre; Agriculture and Agri-Food Canada; 6000 C and E Trail T4L 1W1 Lacombe Alberta Canada
| | - P. Shand
- Dept. of Food and Bioproduct Science, College of Agriculture and Bioresources; Univ. of Saskatchewan; 51 Campus Drive S7N 5A Saskatoon Canada
| | - M. Estévez
- IPROCAR Research Inst; Univ. of Extremadura; 10003 Caceres Spain
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27
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Nitrite promotes protein carbonylation and Strecker aldehyde formation in experimental fermented sausages: Are both events connected? Meat Sci 2014; 98:665-72. [DOI: 10.1016/j.meatsci.2014.06.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 06/13/2014] [Accepted: 06/16/2014] [Indexed: 11/18/2022]
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28
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Villaverde A, Morcuende D, Estévez M. Effect of Curing Agents on the Oxidative and Nitrosative Damage to Meat Proteins during Processing of Fermented Sausages. J Food Sci 2014; 79:C1331-42. [DOI: 10.1111/1750-3841.12481] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Accepted: 04/07/2014] [Indexed: 11/26/2022]
Affiliation(s)
- A. Villaverde
- Authors are with TECAL research group; Animal Production and Food Science; Univ. of Extremadura; 10003 Cáceres Spain
| | - D. Morcuende
- Authors are with TECAL research group; Animal Production and Food Science; Univ. of Extremadura; 10003 Cáceres Spain
| | - M. Estévez
- Authors are with TECAL research group; Animal Production and Food Science; Univ. of Extremadura; 10003 Cáceres Spain
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