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Cortés-Avendaño P, Quispe-Roque J, Macavilca EA, Condezo-Hoyos L. High methoxyl pectin grafted onto gallic acid by one- and two-pot redox-pair procedures. Food Chem 2024; 455:139865. [PMID: 38823133 DOI: 10.1016/j.foodchem.2024.139865] [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: 02/27/2024] [Revised: 05/11/2024] [Accepted: 05/26/2024] [Indexed: 06/03/2024]
Abstract
The aim of this research was to graft gallic acid (GA) onto high methoxyl pectin (HMP) through the redox-pair of ascorbic acid (Aa) and hydrogen peroxide (H2O2) with one- and two-pot procedures. The effectiveness of the both procedures and the chemical, physical and antioxidant properties of the obtained HMP-GA were evaluated. HMP-GAone-pot (23.3 ± 0.21 mg GA Equivalent (GAE)/g) and HMP-GAtwo-pot (32.3 ± 0.52 mg GAE/g) were best obtained at H2O2/Aa molar ratio-HMP/GA weight ratio of 9.0-0.5 and 16.0-0.5, respectively. The UV-Vis and FT-IR spectra and along with their derivative and thermal gravimetric analyses, revealed differences between HMP-GAone-pot and HMP-GAtwo-pot. The latter exhibited a greater antioxidant capacity than the former in single electron transfer (ET), hydrogen atom transfer (HAT), and ET-HAT mixed assays. The chemical differences can be attributed to side reactions that may have interfered with the grafting reaction. Consequently, HMP-GA, possessing unique antioxidant and prebiotic properties, can be synthesized through redox-pair procedures.
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Affiliation(s)
- Paola Cortés-Avendaño
- Innovative Technology, Food and Health Research Group, Facultad de Industrias Alimentarias, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Peru
| | - Jacqueline Quispe-Roque
- Innovative Technology, Food and Health Research Group, Facultad de Industrias Alimentarias, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Peru
| | - Edwin A Macavilca
- Universidad Nacional José Faustino Sánchez Carrión, Departamento Académico de Ingeniería en Industrias Alimentarias, Huacho, Peru
| | - Luis Condezo-Hoyos
- Innovative Technology, Food and Health Research Group, Facultad de Industrias Alimentarias, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Peru; Instituto de Investigación de Bioquímica y Biología Molecular, Universidad Nacional Agraria La Molina, Av. La Molina s/n, Lima, Peru.
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Coêlho ML, Islam MT, Laylson da Silva Oliveira G, Oliveira Barros de Alencar MV, Victor de Oliveira Santos J, Campinho dos Reis A, Oliveira Ferreira da Mata AM, Correia Jardim Paz MF, Docea AO, Calina D, Sharifi-Rad J, Amélia de Carvalho Melo-Cavalcante A. Cytotoxic and Antioxidant Properties of Natural Bioactive Monoterpenes Nerol, Estragole, and 3,7-Dimethyl-1-Octanol. Adv Pharmacol Pharm Sci 2022; 2022:8002766. [PMID: 36465700 PMCID: PMC9712021 DOI: 10.1155/2022/8002766] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 10/28/2022] [Accepted: 11/04/2022] [Indexed: 01/27/2024] Open
Abstract
The therapeutic potential of medicinal plants is noted because of the presence of varieties of biochemicals. The monoterpenes, like nerol, estragole, and 3,7-dimethyl-1-octanol, have been reported for antimicrobial, antifungal, anthelmintic, and antioxidant activities. This study evaluated the toxic, cytotoxic, and oxidant/antioxidant effects of these compounds by several in vitro (DPPH and ABTS radical scavenging, and ferric reducing potential), ex vivo (hemolysis), and in vivo (Artemia Salina and Saccharomyces cerevisiae) assays. Results suggest that estragole and 3,7-dimethyl-1-octanol at 31.25-500 μg/mL did not exhibit significant cytotoxic effects in the A. Salina and hemolysis tests. Nerol showed significant cytotoxic effects on these test systems at all test concentrations. The monoterpenes showed radical (ABTS•+ and DPPH•) scavenging capacities in a concentration-dependent manner in vitro tests. However, they did not oxidize the genetic material of S. cerevisiae (SODWT, Sod1Δ, Sod2Δ, Sod1/Sod2Δ, Cat1Δ, and Cat1Δ/Sod1Δ) lines. Among the three monoterpenes, nerol may be a good candidate for antioxidant and anti-tumor therapies.
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Affiliation(s)
- Mayara Ladeira Coêlho
- Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
- Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Brazil
| | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj 8100, Bangladesh
| | - George Laylson da Silva Oliveira
- Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
- Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Brazil
| | - Marcus Vinicius Oliveira Barros de Alencar
- Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
- Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Brazil
| | | | | | | | - Márcia Fernanda Correia Jardim Paz
- Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
- Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Brazil
| | - Anca Oana Docea
- Department of Toxicology, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | | | - Ana Amélia de Carvalho Melo-Cavalcante
- Northeast Biotechnology Network (RENORBIO), Federal University of Piauí, Teresina, Brazil
- Post-Graduation Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Brazil
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Martin-Lobera C, Aranda F, Lozano-Martinez P, Caballero I, Blanco CA. Bread as a Valuable Raw Material in Craft Ale Beer Brewing. Foods 2022; 11:foods11193013. [PMID: 36230089 PMCID: PMC9563417 DOI: 10.3390/foods11193013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
One of the ingredients used for brewing is barley, which should be malted; it is considered the most polluting agricultural input. On the other hand, food wastage is today a widespread problem that causes significant environmental damage and also generates large economic losses worldwide. One of the most wasted food products is bread; it is estimated that hundreds of tons of bread are wasted every day worldwide. In this study, the brewing of ale beers with bread was carried out. For this purpose, up to 50% of the malt weight was replaced by different types of bread: wheat bread, whole wheat bread, rye bread, and corn bread. A physicochemical and sensory comparison was made with 100% malt ale beer. All beers brewed with bread had an alcoholic strength similar to that of the control beer, except the corn beer. Beers brewed with whole grain bread showed a higher antioxidant capacity and a higher total polyphenol content. The sensory analysis presented different profiles depending on the type of bread; in general, the addition of bread created a greater olfactory intensity in nose. Thus, it was found that it is possible to brew beer with bread substituting up to 50% of the malt. In addition, it was also shown that the beer brewed with whole wheat bread had similar characteristics to the control beer, even improving some beneficial health properties, representing a great advantage for the brewing industry all over the world.
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Affiliation(s)
- Carlos Martin-Lobera
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
| | - Fernando Aranda
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
| | | | - Isabel Caballero
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
| | - Carlos A. Blanco
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
- Correspondence:
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de Menezes BB, Frescura LM, Duarte R, Villetti MA, da Rosa MB. A critical examination of the DPPH method: Mistakes and inconsistencies in stoichiometry and IC 50 determination by UV-Vis spectroscopy. Anal Chim Acta 2021; 1157:338398. [PMID: 33832588 DOI: 10.1016/j.aca.2021.338398] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 03/04/2021] [Accepted: 03/07/2021] [Indexed: 10/21/2022]
Abstract
The DPPH method has been reported with misconceptions in a large number of studies, thus precluding comparison of results. Attention is drawn to a common mistake in the unit used to express the IC50 of ascorbic acid and other antioxidant substances. Concentration of the antioxidant is widely misused with a total disregard for the DPPH• concentration, while the molar ratio of antioxidant/DPPH• would be the correct choice. Data from 26 studies with widely varying IC50 values were renormalized according to reaction stoichiometry, resulting in values which are more coherent and closer to the ideal one of 0.25 for at least 15 of them. In addition, the model which is currently being used to calculate the DPPH• concentration can lead to an overestimation of around 7%, as it does not take into account the small contribution of the reaction product. In view of that, we present a mathematical model to correct the overestimation of the DPPH• concentration.
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Affiliation(s)
- Bryan Brummelhaus de Menezes
- Federal University of Santa Maria - UFSM, Department of Chemistry, Av. Roraima, 1000, 97105-900, Santa Maria, RS, Brazil
| | - Lucas Mironuk Frescura
- Federal University of Santa Maria - UFSM, Department of Chemistry, Av. Roraima, 1000, 97105-900, Santa Maria, RS, Brazil
| | - Rafael Duarte
- Federal University of Santa Maria - UFSM, Department of Chemistry, Av. Roraima, 1000, 97105-900, Santa Maria, RS, Brazil
| | - Marcos Antonio Villetti
- Federal University of Santa Maria - UFSM, Department of Physics, Av. Roraima, 1000, 97105-900, Santa Maria, RS, Brazil
| | - Marcelo Barcellos da Rosa
- Federal University of Santa Maria - UFSM, Department of Chemistry, Av. Roraima, 1000, 97105-900, Santa Maria, RS, Brazil.
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5
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Macavilca EA, Condezo-Hoyos L. Assessment of total antioxidant capacity of altiplano colored quinoa (Chenopodium quinoa willd) by visible and near-infrared diffuse reflectance spectroscopy and chemometrics. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.110182] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Antiglycation Activities and Common Mechanisms Mediating Vasculoprotective Effect of Quercetin and Chrysin in Metabolic Syndrome. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:3439624. [PMID: 32802123 PMCID: PMC7403910 DOI: 10.1155/2020/3439624] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 06/16/2020] [Accepted: 07/03/2020] [Indexed: 12/30/2022]
Abstract
Multiple risk factors combine to increase the risk of vascular dysfunction in patients suffering from metabolic syndrome (MetS). The current study investigates the extent to which quercetin (Q) and chrysin (CH) protect against vascular dysfunction in MetS rats. MetS was induced by feeding rats a high-salt diet (3%) and fructose-enriched water (10%) for 12 weeks. Thoracic aorta was isolated from MetS rats and from control rats, with the latter being injured by methylglyoxal (MG). Aortae were incubated with CH and Q, and vascular reactivity was evaluated through the analysis of aortic contraction and relaxation in response to PE and ACh, respectively. The formation of advanced glycation end products (AGEs) and the free radical scavenging activity of 1,1-diphenyl-2-picrylhydrazyl (DPPH) were also evaluated following the introduction of CH and Q. The increased vasoconstriction and impaired vasodilation in MetS aortae were significantly ameliorated by Q and CH. Similarly, they ameliorated glycation-associated exaggerated vasoconstriction and impaired vasodilation produced by MG in control aortae. In addition, both Q and CH were effective in reducing the formation of AGEs and inhibition of glycosylation in response to MG or fructose treatment. Finally, Q successfully scavenged DPPH free radicals while CH showed significant vasodilation of precontracted aorta that was inhibited by L-NAME. In conclusion, Q and CH provide protection against vascular dysfunction in MetS by interfering with AGEs formations and AGEs-associated vascular deterioration, with CH being largely dependent on NO-mediated mechanisms of vasodilation.
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Lee BW, Ha JH, Shin HG, Jeong SH, Kim JH, Lee J, Park JY, Kwon HJ, Jung K, Lee WS, Ryu YB, Jeong JH, Lee IC. Lindera obtusiloba Attenuates Oxidative Stress and Airway Inflammation in a Murine Model of Ovalbumin-Challenged Asthma. Antioxidants (Basel) 2020; 9:antiox9070563. [PMID: 32605045 PMCID: PMC7402094 DOI: 10.3390/antiox9070563] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/17/2020] [Accepted: 06/24/2020] [Indexed: 12/13/2022] Open
Abstract
Lindera obtusiloba is widespread in northeast Asia and used for treatment of improvement of blood circulation and anti-inflammation. In this study, we investigated anti-inflammatory and anti-oxidant effects of the methanolic extract of L. obtusiloba leaves (LOL) in an ovalbumin (OVA)-challenged allergic asthma model and tumor necrosis factor (TNF)-α-stimulated NCI-H292 cell. Female BALB/c mice were sensitized with OVA by intraperitoneal injection on days 0 and 14, and airway-challenged with OVA from days 21 to 23. Mice were administered 50 and 100 mg/kg of LOL by oral gavage 1 h before the challenge. LOL treatment effectively decreased airway hyper-responsiveness and inhibited inflammatory cell recruitment, Th2 cytokines, mucin 5AC (MUC5AC) in bronchoalveolar lavage fluid in OVA-challenged mice, which were accompanied by marked suppression of airway inflammation and mucus production in the lung tissue. LOL pretreatment inhibited the phosphorylation of mitogen-activated protein kinases (MAPKs) and nuclear factor-kappa B (NF-κB) with suppression of activator protein (AP)-1 and MUC5AC in the lung tissue. LOL also down-regulated expression of inflammatory cytokines, and inhibited the activation of NF-κB in TNF-α-stimulated NCI-H292 cells. LOL elevated the translocation of nuclear factor-erythroid 2-related factor (Nrf-2) into nucleus concurrent with increase of heme oxyngenase-1 (HO-1) and NAD(P)H quinine oxidoreductase 1 (NQO1). Moreover, LOL treatment exhibited a marked increase in the anti-oxidant enzymes activities, whereas effectively suppressed the production of reactive oxygen species and nitric oxide, as well as lipid peroxidation in lung tissue of OVA-challenged mice and TNF-α-stimulated NCI-H292 cells. These findings suggest that LOL might serve as a therapeutic agent for the treatment of allergic asthma.
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Affiliation(s)
- Ba-Wool Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea
| | - Ji-Hye Ha
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Chonnam National University, Gwangju 61186, Korea
| | - Han-Gyo Shin
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Seong-Hun Jeong
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Ju-Hong Kim
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Jihye Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Ji-Young Park
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Hyung-Jun Kwon
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Kyungsook Jung
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Woo-Song Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Young-Bae Ryu
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
| | - Jae-Ho Jeong
- Department of Microbiology, Chonnam National University Medical School, Gwangju 61186, Korea
- Correspondence: (J.-H.J.); (I.-C.L.); Tel.: +82-61-379-2747 (J.-H.J.); +82-63-570-5241 (I.-C.L.); Fax: +82-62-232-9708 (J.-H.J.); +82-63-570-5239 (I.-C.L.)
| | - In-Chul Lee
- Functional Biomaterial Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup-si, Jeollabuk-do 56212, Korea; (B.-W.L.); (J.-H.H.); (H.-G.S.); (S.-H.J.); (J.-H.K.); (J.L.); (J.-Y.P.); (H.-J.K.); (K.J.); (W.-S.L.); (Y.-B.R.)
- Correspondence: (J.-H.J.); (I.-C.L.); Tel.: +82-61-379-2747 (J.-H.J.); +82-63-570-5241 (I.-C.L.); Fax: +82-62-232-9708 (J.-H.J.); +82-63-570-5239 (I.-C.L.)
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Paper microzone plate based on DPPH as a simple colorimetric assay of the total antioxidant content of herbal extracts. Journal of Food Science and Technology 2020; 57:1971-1976. [PMID: 32327808 DOI: 10.1007/s13197-020-04378-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 02/10/2020] [Accepted: 03/27/2020] [Indexed: 10/24/2022]
Abstract
The human body needs an antioxidant-rich diet that comes from foods, beverages, and herbal products to support the physiological antioxidant systems. Thus, the development of an analytical tool for a simple assay of the total antioxidant capacity (TAC) of the rich antioxidant samples is crucial. The current work demonstrates a simple colorimetric assay of TAC of the herbal extract on the paper microzone plate (PµZP) that was constructed in the 70-well of patterned paper using the screen printing technique. The PµZP was constructed by immobilizing DPPH (2,2-diphenyl-1-picrylhydrazyl) onto 70-well of PµZP as a sensing zone for colorimetric detection. The purple-sensing zone exhibited a good response to gallic acid (GA), by producing slightly gray to pale yellow color that can be captured using a scanner and then analyzed using the ImageJ program. The paper-based sensor showed a linear response toward GA at 0.05-0.6 mM (r = 0.9895), reproducible response (RSD < 4%), and accurate measurement with 91 to 106% recovery for measuring TAC of herbal extract, presented as mM gallic acid equivalent and showed a good agreement with the standard DPPH method. The results suggested that the proposed method can be applied for simple TAC measurement in the herbal extract.
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Tripathi VC, Horam S, Singh A, Lata M, Reddy TJ, Arockiaraj J, Pasupuleti M. The discovery of antioxidants in marine microorganisms and their protective effects on the hepatic cells from chemical-induced oxidative stress. Free Radic Res 2020; 54:150-161. [PMID: 32013646 DOI: 10.1080/10715762.2020.1725499] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The marine environment is emerging as a biodiversity resource for the discovery of natural molecules or chemical scaffolds with pharmaceutical activity. Marine microbes have a tremendous ability to sense and respond to their surroundings to survive in a stressful environment by producing different molecules. As oxidative stress is directly or indirectly involved in various pathological conditions in humans, we believe that marine-derived antioxidant molecules will have a great prospect as a novel antioxidant molecule. We, in this work, explored the marine microbial resources from the Gulf of Mannar, Bay of Bengal, India. High-throughput screening of antioxidant molecule producing marine microbes has revealed that extract from Kocuria marina CDMP 10, can effectively reduce the DPPH free radical. Methanolic crude extract obtained by the freeze-thawing was fractionated and purified by using activity guided purification with the help of reverse phase HPLC and analysed through UPLC-MS. Chemical analysis, as well as MS-spectra, indicated that marine bacteria K. marina CDMP 10 derived antioxidant fraction contains the short peptides. The antioxidant activity of the three highly hydrophobic peptides, (Ser-Ser-Gln, Phe-Glu, Asp-Ile and Leu-Glu) was confirmed by in vitro as well as a cell-based assay. These small peptide molecules are noncytotoxic and can prevent the human cells from chemical-induced oxidative stress. Ser-Ser-Gln peptide demonstrated a potent free radical scavenging activity in Hepatocellular carcinoma cell lines. This study suggests that these short peptides from K. marina CDMP 10 may serve as a potential pharmaceutical candidate with antioxidant activity.
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Affiliation(s)
- Vikash Chandra Tripathi
- Microbiology Division, Council of Scientific and Industrial Research, Central Drug Research Institute, Lucknow, India
| | - Soyar Horam
- Microbiology Division, Council of Scientific and Industrial Research, Central Drug Research Institute, Lucknow, India
| | - Anoop Singh
- Microbiology Division, Council of Scientific and Industrial Research, Central Drug Research Institute, Lucknow, India
| | - Manjul Lata
- Microbiology Division, Council of Scientific and Industrial Research, Central Drug Research Institute, Lucknow, India
| | - Thota Jagadeshwar Reddy
- Council of Scientific and Industrial Research, Indian Institute of Chemical Technology, Hyderabad, India
| | - Jesu Arockiaraj
- SRM Research Institute, SRM Institute of Science and Technology, Kattankulathur, India
| | - Mukesh Pasupuleti
- Microbiology Division, Council of Scientific and Industrial Research, Central Drug Research Institute, Lucknow, India
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Ahmed OAA, El-Bassossy HM, Azhar AS, Tarkhan MM, El-Mas MM. Interference with AGEs formation and AGEs-induced vascular injury mediates curcumin vascular protection in metabolic syndrome. Sci Rep 2020; 10:315. [PMID: 31941978 PMCID: PMC6962217 DOI: 10.1038/s41598-019-57268-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 12/23/2019] [Indexed: 12/15/2022] Open
Abstract
Vascular dysfunction predisposes to cardiovascular complications of metabolic syndrome (MetS). The current study investigated the mechanism(s) of curcumin's (CUR) protective effect against vascular reactivity irregularities in MetS. MetS was induced by feeding rats on high fructose high salt diet. Tension studies were undertaken in aortic rings to assess the influence of CUR on vasoconstrictor or vasorelaxant responses. The effect on advanced glycation endproducts (AGEs) was studied by incubating aortic tissues with methylglyoxal, the AGEs precursor, in the absence and presence of CUR. In addition, CUR effects on in-vitro generation of AGEs and diphenyl-2-picrylhydrazyl (DPPH) free radicals were studied. The incubation with CUR for 1 hr produced significant and concentration-dependent alleviation of the exaggerated vasoconstriction observed in aortas isolated from MetS, however failed to improve the concomitant attenuation of vasodilatory responses to ACh in PE-precontracted aortas. By contrast, CUR caused direct concentration-dependent vasodilations of precontracted aortas, effects that were blunted after nitric oxide synthase inhibition by L-NAME. Similar to its effects in MetS aortas, CUR alleviated exaggerated PE vasoconstriction but did not affect impaired ACh vasodilations in AGEs-exposed aortas. In addition, CUR showed significant dose-dependent DPPH free radicals scavenging activity and inhibited both MG and fructose induced AGEs formation at the level of protein oxidation step as evident from the effect on dityrosine and N-formylkyramine. CUR alleviates exaggerated vasoconstriction in MetS through interfering with AGEs formation and AGEs-induced vascular injury. Free radical scavenging and direct vasodilatory activities could also participate in the advantageous vascular actions of CUR.
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Affiliation(s)
- Osama A A Ahmed
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, KSA, Saudi Arabia. .,Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Minia University, Minia, Egypt.
| | - Hany M El-Bassossy
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Ahmad S Azhar
- Pediatric Cardiac Center of Excellence, Faculty of Medicine, King Abdulaziz University, Jeddah, KSA, Saudi Arabia
| | - Mayada M Tarkhan
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, KSA, Saudi Arabia
| | - Mahmoud M El-Mas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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11
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Ouyang X, Li X, Liu J, Liu Y, Xie Y, Du Z, Xie H, Chen B, Lu W, Chen D. Structure–activity relationship and mechanism of four monostilbenes with respect to ferroptosis inhibition. RSC Adv 2020; 10:31171-31179. [PMID: 35520676 PMCID: PMC9056428 DOI: 10.1039/d0ra04896h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 08/08/2020] [Indexed: 12/20/2022] Open
Abstract
Erastin-treated bone marrow-derived mesenchymal stem cells (bmMSCs) were prepared and used to compare the ferroptosis inhibitory bioactivities of four monostilbenes, including rhapontigenin (1a), isorhapontigenin (1b), piceatannol-3′-O-glucoside (1c), and rhapontin (1d). Their relative levels were 1c ≈ 1b > 1a ≈ 1d in 4,4-difluoro-5-(4-phenyl-1,3-butadienyl)-4-bora-3a,4a-diaza-s-indacene-3-undecanoic acid (C11-BODIPY), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), and flow cytometric assays. The comparison highlighted two 4′-OH-containing monostilbenes (1c and 1b) in ferroptosis inhibitory bioactivity. Similar structure–activity relationships were also observed in antioxidant assays, including 1,1-diphenyl-2-picryl-hydrazl radical (DPPH˙)-trapping, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide radical (PTIO˙)-trapping, and Fe3+-reducing assays. UPLC-ESI-Q-TOF-MS analysis of the DPPH˙-trapping reaction of the monostilbenes revealed that they can inhibit ferroptosis in erastin-treated bmMSCs through a hydrogen donation-based antioxidant pathway. After hydrogen donation, these monostilbenes usually produce the corresponding stable dimers; additionally, the hydrogen donation potential was enhanced by the 4′-OH. The enhancement by 4′-OH can be attributed to the transannular resonance effect. This effect can be used to predict the inhibition potential of other π–π conjugative phenolics. Erastin-treated bone marrow-derived mesenchymal stem cells (bmMSCs) were prepared and used to compare the ferroptosis inhibitory bioactivities of four monostilbenes, including rhapontigenin (1a), isorhapontigenin (1b), piceatannol-3′-O-glucoside (1c), and rhapontin (1d).![]()
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Affiliation(s)
- Xiaojian Ouyang
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Xican Li
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Jie Liu
- School of Basic Medical Science
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
- The Research Center of Basic Integrative Medicine
| | - Yangping Liu
- School of Basic Medical Science
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
- The Research Center of Basic Integrative Medicine
| | - Yulu Xie
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Zhongcun Du
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Hong Xie
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Ban Chen
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Wenbiao Lu
- School of Chinese Herbal Medicine
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
| | - Dongfeng Chen
- School of Basic Medical Science
- Guangzhou University of Chinese Medicine
- Guangzhou 510006
- China
- The Research Center of Basic Integrative Medicine
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12
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Mycofabrication of bioactive silver nanoparticle: Photo catalysed synthesis and characterization to attest its augmented bio-efficacy. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.07.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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13
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Abdallah HM, Zakaria EM, El-Halawany AM, Mohamed GA, Safo MK, El-Bassossy HM. Psiadia punctulata major flavonoids alleviate exaggerated vasoconstriction produced by advanced glycation end products. PLoS One 2019; 14:e0222101. [PMID: 31491007 PMCID: PMC6730914 DOI: 10.1371/journal.pone.0222101] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 08/21/2019] [Indexed: 12/02/2022] Open
Abstract
Exaggerated vasoconstriction plays important roles in vascular complication in aging and many diseases like diabetes. Here, we investigated the protective effect of Psiadia punctulata (PP) on advanced glycation end products (AGEs)-induced aggravated vasoconstriction. The effect of total methanol extract of PP leaves (PPT) on AGE-induced vascular injury was studied through bioassay-guided fractionation procedures in order to find the bioactive fraction and isolate the bioactive compounds. Vascular reactivity was studied using the isolated artery technique by adding cumulative concentrations of phenylephrine (PE) or acetyl choline (ACh). In addition, the antiglycating effect, as well as the effect on AGEs intermediates dityrosine and N`-formylkynurenine and their radical scavenging activity were measured. The results showed that PPT alleviated the AGEs-induced aggravated vasoconstriction in a concentration-dependent manner. The bioassay guided fractionation procedures suggested the chloroform fraction (Fr I) to be responsible for the activity. Chemical investigation of this fraction resulted in isolation of four major bioactive compounds that were identified as: umuhengerin (1), gardenin (2), luteolin-3`,4`-dimethyl ether (3), and 5,3`-dihydroxy-6,7,4`,5`-tetramethoxyflavone (4). The four compounds alleviated the exaggerated vasoconstriction in a dose dependent manner. In search for their mechanism of action, we observed that PPT, Fr. I and the isolated compounds did not improve the impaired vasodilation associated with AGEs exposure. PPT, Fr. I and the isolated compounds 1–4 inhibited AGEs formation and their protein oxidation intermediates. Furthermore, PPT, Fr. I and the isolated compounds 1–4 showed weak radical scavenging activity with compound 4 as the most potent. In conclusion, PPT appears to protect against AGEs-induced exaggerated vasoconstriction through antiglycation and radical scavenging activities.
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Affiliation(s)
- Hossam M. Abdallah
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
- * E-mail:
| | - Esraa M. Zakaria
- Department of Pharmacology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Ali M. El-Halawany
- Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Gamal A. Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assuit Branch, Assuit, Egypt
| | - Martin K. Safo
- Department of Medicinal Chemistry, Institute for Structural Biology, Drug Discovery and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Hany M. El-Bassossy
- Department of Pharmacology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
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14
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Tarkhan MM, Balamsh KS, El-Bassossy HM. Cinnamaldehyde protects from methylglyoxal-induced vascular damage: Effect on nitric oxide and advanced glycation end products. J Food Biochem 2019; 43:e12907. [PMID: 31353699 DOI: 10.1111/jfbc.12907] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 05/08/2019] [Accepted: 05/08/2019] [Indexed: 12/12/2022]
Abstract
The protective effect and mechanism(s) of action of cinnamaldehyde on the highly reactive secondary sugar derivative, methylglyoxal, induced vascular damage were investigated using isolated rat thoracic aorta. Aorta was incubated with methylglyoxal and cinnamaldehyde where vascular reactivity was assessed through phenylephrine- and acetylcholine-induced contraction and relaxation, respectively. Cinnamaldehyde's antioxidant activity, ability to induce aortic nitric oxide release, and effect on advanced glycation end products formation (AGEs) was also studied. Results showed that cinnamaldehyde significantly alleviated the exaggerated contraction and improved the attenuated dilation of the aorta secondary to incubation with methylglyoxal. Furthermore, cinnamaldehyde stimulated aortic nitric oxide production from isolated aorta giving levels similar to acetylcholine and significantly reduced both methylglyoxal-induced AGEs and protein oxidation products formation. In conclusion, cinnamaldehyde protects from methyglyoxal-induced vascular damage mainly by improving the vasodilation in addition to endothelial nitric oxide production and reducing the detrimental AGE-inflicted vascular damage. PRACTICAL APPLICATIONS: The use of naturally occurring products to alleviate various disease-related complications is highly attractive due to their easy availability, relatively affordable prices compared to pharmaceutical products, and their favorable safety profile. In the case of cinnamaldehyde, its excessive and highly reputable consumption in the food industry facilitates promoting a daily intake of the natural compound with the purpose of counteracting the destructive effect that elevated blood glucose has on vascular function. According to findings obtained from this study, frequent cinnamaldehyde intake will improve vascular reactivity by acting on vasodilatory mechanisms and inhibiting glycation reactions, hence improving the hyperglycemia associated hypertensive state. The study also paves the way for future research to determine the clinical efficacy of cinnamaldehyde having established its competence in protecting vascular function in a lab setting.
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Affiliation(s)
- Mayada Mohammed Tarkhan
- Faculty of Science, Department of Biochemistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Khadijah Saeed Balamsh
- Faculty of Science, Department of Biochemistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hany Mohammed El-Bassossy
- Faculty of Pharmacy, Department of Pharmacology and Toxicology, King Abdulaziz University, Jeddah, Saudi Arabia.,Faculty of Pharmacy, Department of Pharmacology, Zagazig University, Zagazig, Egypt
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15
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Paz MFCJ, Gomes Júnior AL, de Alencar MVOB, Tabrez S, Islam MT, Jabir NR, Oves M, Alam MZ, Asghar MN, Ali ES, da Conceição Machado K, da Conceição Machado K, da Silva FCC, Sobral ALP, de Castro E Sousa JM, de Moraes GP, Mishra SK, da Silva J, de Carvalho Melo-Cavalcante AA. Effect of Diets, Familial History, and Alternative Therapies on Genomic Instability of Breast Cancer Patients. Appl Biochem Biotechnol 2018; 188:282-296. [PMID: 30430345 DOI: 10.1007/s12010-018-2918-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 11/05/2018] [Indexed: 12/30/2022]
Abstract
This study evaluates a correlation between family history, micronutrients intake, and alternative therapies with genetic instability, before and during breast cancer treatment. For this study, a total of 150 women were selected. Among those, 50 women were breast cancer patients on chemotherapy, while 50 breast cancer patients were on radiotherapy, and 50 were healthy females. All the participants signed the informed consent form and answered the public health questionnaire. Samples of buccal epithelial and peripheral blood cells were collected and analyzed through micronucleus and comet assays. The cells were evaluated for apoptosis and DNA damage. Results showed the association of patients' family history with an increase in toxicogenetic damage before and during cancer therapy. On the other hand, patients with late-onset cancer also presented genetic instability before and during therapy, along with those who did not take sufficient vegetables and alternative therapies. A positive correlation was observed between the genetic instability and alternative therapies, while inverse correlation was recorded with the vegetable consumption. Results clearly explain that the nutritional aspects and alternative therapies influence the genetic instability before and during cancer therapies especially in radiotherapy treated patients. Our data could be used for the monitoring therapies and management of breast cancer patients.
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Affiliation(s)
- Márcia Fernanda Correia Jardim Paz
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4° Andar), Canoas, RS, 92425-900, Brazil.,Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Antônio Luiz Gomes Júnior
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | | | - Shams Tabrez
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Muhammad Torequl Islam
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam. .,Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, 700000, Vietnam.
| | - Nasimudeen R Jabir
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mohammad Oves
- Center of Excellence in Environmental Research, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Mohammad Zubair Alam
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | | | - Eunüs S Ali
- Gaco Pharmaceuticals and Research Laboratory, Dhaka, 1000, Bangladesh.,College of Medicine and Public Health, Flinders University, Bedford Park, 5042, Australia
| | - Keylla da Conceição Machado
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Kátia da Conceição Machado
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Felipe Cavalcanti Carneiro da Silva
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - André Luiz Pinho Sobral
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - João Marcelo de Castro E Sousa
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Germano Pinho de Moraes
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
| | - Siddhartha Kumar Mishra
- Cancer Biology Laboratory, School of Biological Sciences (Zoology), Dr. Harisingh Gour Central University, Sagar, 470003, India
| | - Juliana da Silva
- Laboratory of Genetic Toxicology, PPGBioSaúde and PPGGTA, Lutheran University of Brazil (ULBRA), Av. Farroupilha 8001, Prédio 22, Sala 22 (4° Andar), Canoas, RS, 92425-900, Brazil
| | - Ana Amélia de Carvalho Melo-Cavalcante
- Northeast Biotechnology Network (RENORBIO), Post-Graduate Program in Pharmaceutical Science, Federal University of Piauí, Teresina, Piauí, 64.049-550, Brazil
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16
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Enhancement of the antioxidant activity and stability of β-carotene using amphiphilic chitosan/nucleic acid polyplexes. Int J Biol Macromol 2018; 117:773-780. [DOI: 10.1016/j.ijbiomac.2018.06.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 06/01/2018] [Accepted: 06/02/2018] [Indexed: 12/15/2022]
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17
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S. S, H. LJK, K. R, M. S. Antimicrobial and antioxidant potentials of biosynthesized colloidal zinc oxide nanoparticles for a fortified cold cream formulation: A potent nanocosmeceutical application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017. [DOI: 10.1016/j.msec.2017.05.059] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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18
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Scanometry as microplate reader for high throughput method based on DPPH dry reagent for antioxidant assay. Acta Pharm Sin B 2017; 7:395-400. [PMID: 28540178 PMCID: PMC5430812 DOI: 10.1016/j.apsb.2017.02.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 01/02/2017] [Accepted: 01/27/2017] [Indexed: 11/24/2022] Open
Abstract
The stable chromogenic radical 1,1'-diphenyl-2-picrylhydrazyl (DPPH) solution was immobilized on the microwell plate as dry reagent to construct a simple antioxidant sensor. Then, a regular flatbed scanner was used as microplate reader to obtain analytical parameters for antioxidant assay using one-shot optical sensors as scanometry technique. Variables affecting the acquisition of the images were optimized and the analytical parameters are obtained from an area of the sensing zone inside microwell using the average luminosity of the sensing zone captured as the mean of red, green, and blue (RGB) value using ImageJ® program. By using this RGB value as sensor response, it is possible to determine antioxidant capacity in the range 1-25 ppm as gallic acid equivalent (GAE) with the response time of 9 min. The reproducibility of sensor was good (RSD<1%) with recovery at 93%-96%. The antioxidant sensor was applied to the plant extracts, such as sappan wood and Turmeric Rhizome. The results are good when compared to the same procedure using a UV/Vis spectrophotometer.
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19
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Makola MM, Madala NE, Dubery IA, Steenkamp PA, Kabanda MM. Influence of the geometric isomers on the radical scavenging properties of 3,5-dicaffeoylquinic acid: A DFT study in vacuo and in solution. JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2016. [DOI: 10.1142/s0219633616500528] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
3,5-Dicaffeoylquinic acid (diCQA) is a part of the chlorogenic acid group of compounds, largely isolated from food sources and possessing potent antioxidant activity. Only the trans–trans isomer exists in nature, however, abiotic stresses, such as UV-radiation, give rise to cis isomers. There have been no reports on the antioxidant activity of the cis isomers. The current study, performed using the B3LYP/6-311[Formula: see text]G(d,p) method, is aimed at investigating and comparing the antioxidant properties of the geometrical isomers of 3,5-diCQA. The study is conducted by checking the molecules’ ability for two main radical scavenging mechanisms, hydrogen atom transfer (HAT) and electron transfer (ET). A separate DPPH assay experimental study performed in this study shows that all the geometrical isomers are potent radical scavengers. The lowest O[Formula: see text]H bond dissociation enthalpy value (70.599 kcal/mol) corresponds to the trans–trans isomer and is comparable to that of gallic acid, a commercially available antioxidant. The lowest ionization potential value corresponds to the cis–cis isomer (149.54[Formula: see text]kcal/mol), indicating that it is best antioxidant, in terms of ET mechanism.
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Affiliation(s)
- Mpho M. Makola
- Department of Biochemistry, University of Johannesburg P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Ntakadzeni E. Madala
- Department of Biochemistry, University of Johannesburg P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Ian A. Dubery
- Department of Biochemistry, University of Johannesburg P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Paul A. Steenkamp
- Council for Scientific and Industrial Research (CSIR), Biosciences, Natural Products and Agroprocessing Group, Pretoria 0001, South Africa
| | - Mwadham. M. Kabanda
- Department of Chemistry, Faculty of Agriculture, Science and Technology, School of Mathematical and Physical Science, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
- Material Science Innovation and Modelling (MaSIM), Research Focus Area, Faculty of Agriculture, Science and Technology, North-West University (Mafikeng Campus), Private Bag X2046, Mmabatho 2735, South Africa
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20
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Tirawattanakoson R, Rattanarat P, Ngamrojanavanich N, Rodthongkum N, Chailapakul O. Free radical scavenger screening of total antioxidant capacity in herb and beverage using graphene/PEDOT: PSS-modified electrochemical sensor. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2015.11.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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21
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Parsa A, Salout SA. Investigation of the antioxidant activity of electrosynthesized polyaniline/reduced graphene oxide nanocomposite in a binary electrolyte system on ABTS and DPPH free radicals. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2015.11.021] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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22
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Zheng L, Lin L, Su G, Zhao Q, Zhao M. Pitfalls of using 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay to assess the radical scavenging activity of peptides: Its susceptibility to interference and low reactivity towards peptides. Food Res Int 2015; 76:359-365. [PMID: 28455015 DOI: 10.1016/j.foodres.2015.06.045] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2015] [Revised: 06/21/2015] [Accepted: 06/23/2015] [Indexed: 12/28/2022]
Abstract
DPPH assay is widely used to evaluate the radical scavenging activities of peptides. Effects of pH and buffers on the stability of DPPH• and its reduced product (DPPHH) in the ethanol-buffer solution were investigated in this study and the reactivity of DPPH• towards several dipeptides was compared to that of 2,2-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+) and the peroxyl radicals in oxygen radical absorbance capacity (ORAC) assay. Results showed that the deprotonation of DPPHH under basic condition could interfere with the spectrophotometric measurement at 515-525nm. It was suggested that the reaction mixture be maintained at a final pH range of 5.0-6.5 in 1:1 ethanol-acetate/citrate buffer medium when evaluating the activities of peptides. Additionally, among tested dipeptides, only Cys-containing dipeptides displayed DPPH• scavenging activity with 0.14-0.28μmol TE (Trolox equivalent)/μmol, while Tyr/Trp-containing dipeptides with high reactivity towards ABTS•+ and peroxyl radicals were inert to DPPH• with TE values less than 0.02.
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Affiliation(s)
- Lin Zheng
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510641, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 511458, China
| | - Lianzhu Lin
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510641, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 511458, China
| | - Guowan Su
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510641, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 511458, China
| | - Qiangzhong Zhao
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510641, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 511458, China
| | - Mouming Zhao
- College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510641, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 511458, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China.
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23
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A novel, micro, rapid and direct assay to assess total antioxidant capacity of solid foods. Talanta 2015; 138:108-116. [DOI: 10.1016/j.talanta.2015.01.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Revised: 01/24/2015] [Accepted: 01/31/2015] [Indexed: 11/20/2022]
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24
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Unique variability of tocopherol composition in various seed oils recovered from by-products of apple industry: rapid and simple determination of all four homologues (α, β, γ and δ) by RP-HPLC/FLD. Food Chem 2014; 172:129-34. [PMID: 25442533 DOI: 10.1016/j.foodchem.2014.09.051] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 04/26/2014] [Accepted: 09/10/2014] [Indexed: 11/20/2022]
Abstract
The tocochromanol profile was studied in seed oils recovered from by-products of fruit industry, five dessert and seven crab apple varieties grown in Eastern Europe (Latvia). The seed oils obtained from dessert apples were characterized by higher contents of tocopherols (191.05-379.08 mg/100g oil) when compared to seed oils recovered from crab apples (130.55-202.54 mg/100g oil). The predominant homologues of tocopherol in all the studied samples were α and β over γ and δ. However, seed oils recovered from the apple cultivars 'Antej' and 'Beforest' had a unique profile of four tocopherol homologues (α:β:γ:δ) 91.41:80.55:72.46:79.03 and 114.55:112.84:78.69:73.00 mg/100g oil, respectively. A single dilution of seed oils in 2-propanol facilitated the direct use samples in the DPPH assay as well as injection into the RP-HPLC system containing a PFP (pentafluorophenyl) column, which resulted in a rapid separation of all four tocopherol homologues with excellent repeatability and reproducibility.
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25
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Parsa A, Sadeghi M, Maleki M, Parhizkar S, Ghani SA. Free radical scavenging activity of homo and copolymer of aniline and para-phenylenediamine prepared in ZnCl2 medium. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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He F, Wang M, Gao M, Zhao M, Bai Y, Zhao C. Chemical composition and biological activities of Gerbera anandria. Molecules 2014; 19:4046-57. [PMID: 24699147 PMCID: PMC6271908 DOI: 10.3390/molecules19044046] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2014] [Revised: 03/17/2014] [Accepted: 03/25/2014] [Indexed: 11/19/2022] Open
Abstract
Gerbera anandria (Compositae) was extracted with 75% ethanol and the residue was fractionated using light petroleum, chloroform and ethyl acetate. The constituents of the extracts were separated by column chromatography employing solvents of different polarity. Column chromatography of the light petroleum fraction resulted in the isolation of methyl hexadecanoate, while the chloroform fraction afforded xanthotoxin, 2-hydroxy-6-methylbenzoic acid, 7-hydroxy-1(3H)-isobenzofuranone, a mixture of β-sitosterol and stigmasterol, and 8-methoxysmyrindiol and the ethyl acetate fraction gave gerberinside, apigenin-7-O-β-d-glucopyranoside and quercetin. A new coumarin, 8-methoxysmyrindiol, was found. The chemical structures of the isolated compounds were established by MS and NMR (HSQC, HMBC). Free radical scavenging and cytotoxic activities of crude extracts and 8-methoxysmyrindiol were further investigated. The ethyl acetate phase exerted the strongest DPPH free radical scavenging activity in comparison to the other fractions. The coumarin 8-methoxysmyrindiol demonstrated cytotoxicity against multiple human cancer cell lines, with the highest potency in HepG2 cells.
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Affiliation(s)
- Fa He
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road Shenhe District , Shenyang 110016, China.
| | - Miao Wang
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road Shenhe District , Shenyang 110016, China.
| | - Minghuan Gao
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road Shenhe District , Shenyang 110016, China.
| | - Min Zhao
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road Shenhe District , Shenyang 110016, China.
| | - Yuhua Bai
- College of Pharmacy, Harbin Medical University, Daqing 163319, China.
| | - Chunjie Zhao
- Department of Pharmaceutical Analysis, School of Pharmacy, Shenyang Pharmaceutical University, No. 103 Wenhua Road Shenhe District , Shenyang 110016, China.
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