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Dai L, Cai S, Chu D, Pang R, Deng J, Zheng X, Dai W. Identification of Chemical Constituents in Blumea balsamifera Using UPLC-Q-Orbitrap HRMS and Evaluation of Their Antioxidant Activities. Molecules 2023; 28:molecules28114504. [PMID: 37298979 DOI: 10.3390/molecules28114504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023] Open
Abstract
Blumea balsamifera (L.) DC., a perennial herb in the Asteraceae family native to China and Southeast Asia, has a notable history of medicinal use due to its pharmacological properties. Using UPLC-Q-Orbitrap HRMS techniques, we systematically investigated the chemical constituents of this plant. A total of 31 constituents were identified, of which 14 were flavonoid compounds. Significantly, 18 of these compounds were identified in B. balsamifera for the first time. Furthermore, the mass spectrometry fragmentation patterns of significant chemical constituents identified in B. balsamifera were analyzed, providing important insights into their structural characteristics. The in vitro antioxidative potential of the methanol extract of B. balsamifera was assessed using DPPH and ABTS free-radical-scavenging assays, total antioxidative capacity, and reducing power. The antioxidative activity exhibited a direct correlation with the mass concentration of the extract, with IC50 values of 105.1 ± 0.503 μg/mL and 12.49 ± 0.341 μg/mL for DPPH and ABTS, respectively. For total antioxidant capacity, the absorbance was 0.454 ± 0.009 at 400 μg/mL. In addition, the reducing power was 1.099 ± 0.03 at 2000 μg/mL. This study affirms that UPLC-Q-Orbitrap HRMS can effectively discern the chemical constituents in B. balsamifera, primarily its flavonoid compounds, and substantiates its antioxidative properties. This underscores its potential utility as a natural antioxidant in the food, pharmaceutical, and cosmetics sectors. This research provides a valuable theoretical basis and reference value for the comprehensive development and utilization of B. balsamifera and expands our understanding of this medicinally valuable plant.
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Affiliation(s)
- Liping Dai
- College of Traditional Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China
- Experimental Center of Yunfu Campus, Guangdong Pharmaceutical University, Yunfu 527325, China
| | - Shengnan Cai
- College of Traditional Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China
- Experimental Center of Yunfu Campus, Guangdong Pharmaceutical University, Yunfu 527325, China
| | - Dake Chu
- Experimental Center of Yunfu Campus, Guangdong Pharmaceutical University, Yunfu 527325, China
| | - Rui Pang
- Experimental Center of Yunfu Campus, Guangdong Pharmaceutical University, Yunfu 527325, China
| | - Jianhao Deng
- Experimental Center of Yunfu Campus, Guangdong Pharmaceutical University, Yunfu 527325, China
| | - Xilong Zheng
- College of Traditional Chinese Medicine Resources, Guangdong Pharmaceutical University, Yunfu 527325, China
| | - Wei Dai
- Experimental Center of Yunfu Campus, Guangdong Pharmaceutical University, Yunfu 527325, China
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Liao X, Ji P, Chi K, Chen X, Zhou Y, Chen S, Cheng Y, Flaumenhaft R, Yuan C, Huang M. Enhanced inhibition of protein disulfide isomerase and anti-thrombotic activity of a rutin derivative: rutin:Zn complex. RSC Adv 2023; 13:11464-11471. [PMID: 37063725 PMCID: PMC10090900 DOI: 10.1039/d3ra01135f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/17/2023] [Indexed: 04/18/2023] Open
Abstract
Rutin is a flavonoid that exists in plants and in commonly consumed foods. In recent years, rutin has been demonstrated to have anti-thrombotic efficacy through its inhibition of protein disulfide isomerase. However, the low aqueous solubility and high dose limit the therapeutic applications of rutin. In this study, we found that the chelation of zinc ions increased rutin aqueous solubility by 4-fold. More importantly, the thus-formed rutin:Zn complex inhibited PDI activity more potently than rutin itself. In a murine model with electric current-induced arterial thrombosis, the rutin:Zn complex slowed mouse arterial occlusion compared to rutin without increasing bleeding risk. Thus, the zinc chelation not only improved rutin aqueous solubility but achieved stronger inhibition of PDI. Furthermore, zinc chelation of a selected list of flavonoids containing the adjacent keto and phenoxy groups also increased their inhibition of PDI. Hence, our study provides a strategy to promote flavonoids' anti-thrombotic properties.
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Affiliation(s)
- Xinyuan Liao
- College of Chemistry, Fuzhou University Fujian 350108 China
| | - Panpan Ji
- College of Biological Science and Engineering, Fuzhou University Fuzhou Fujian 350108 China
| | - Kunxiang Chi
- College of Chemistry, Fuzhou University Fujian 350108 China
| | - Xueying Chen
- College of Chemistry, Fuzhou University Fujian 350108 China
| | - Yang Zhou
- College of Chemistry, Fuzhou University Fujian 350108 China
| | - Shanli Chen
- College of Chemistry, Fuzhou University Fujian 350108 China
| | - Yuan Cheng
- College of Chemistry, Fuzhou University Fujian 350108 China
| | - Robert Flaumenhaft
- Division of Hemostasis and Thrombosis, Beth Israel Deaconess Medical Center, Harvard Medical School Boston MA 02215 USA
| | - Cai Yuan
- College of Biological Science and Engineering, Fuzhou University Fuzhou Fujian 350108 China
| | - Mingdong Huang
- College of Chemistry, Fuzhou University Fujian 350108 China
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Fabjanowicz M, Simeonov V, Frankowski M, Wojnowski W, Płotka-Wasylka J. Multivariate Statistical Analysis for Mutual Dependence Assessment of Selected Polyphenols, Organic Acids and Metals in Cool-Climate Wines. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196566. [PMID: 36235101 PMCID: PMC9573107 DOI: 10.3390/molecules27196566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 11/30/2022]
Abstract
Polyphenols, organic acids and metal ions are an important group of compounds that affect the human health and quality of food and beverage products, including wines. It is known that a specific correlation between these groups exist. While wines coming from the New World and the Old World countries are extensively studied, wines coming from cool-climate countries are rarely discussed in the literature. One of the goals of this study was to determine the elemental composition of the wine samples, which later on, together as polyphenols and organic acids content, was used as input data for chemometric analysis. The multivariate statistical approach was applied in order to find specific correlations between the selected group of compounds in the cool-climate wines and the features that distinguish the most and differ between red and white wines and rosé wines. Moreover, special attention was paid to resveratrol and its correlation with selected wine constituents.
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Affiliation(s)
- Magdalena Fabjanowicz
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology (GUT), 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
- Correspondence: (M.F.); (J.P.-W.)
| | - Vasil Simeonov
- Faculty of Chemistry and Pharmacy, University of Sofia, 1 James Bourchier Blvd., 1126 Sofia, Bulgaria
| | - Marcin Frankowski
- Deparment of Analytical and Environmental Chemistry, Faculty of Chemistry, Adam Mickiewicz University, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | - Wojciech Wojnowski
- Department of Analytical Chemistry, Faculty of Chemistry, Gdańsk University of Technology (GUT), 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
- Department of Chemistry, University of Oslo, P.O. Box 1033-Blindern, 0315 Oslo, Norway
| | - Justyna Płotka-Wasylka
- Department of Analytical Chemistry, Faculty of Chemistry and BioTechMed Center, Gdańsk University of Technology (GUT), 11/12 Narutowicza Street, 80-233 Gdańsk, Poland
- Correspondence: (M.F.); (J.P.-W.)
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Rutin-Zn(II) complex promotes bone formation - A concise assessment in human dental pulp stem cells and zebrafish. Chem Biol Interact 2021; 349:109674. [PMID: 34562440 DOI: 10.1016/j.cbi.2021.109674] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 09/06/2021] [Accepted: 09/21/2021] [Indexed: 01/08/2023]
Abstract
We have assessed the molecular role of Rutin and rutin-Zn(II) complex on osteoblast differentiation and mineralization in human dental pulp cells and zebrafish model. The biocompatibility of the rutin-Zn(II) complex was determined using MTT and chick embryotoxicity assays. Alizarin red staining and ALP measurements were performed to study the osteogenic role of Rutin and rutin-Zn(II) complex at the cellular level in hDPSCs. At molecular level, following rutin and rutin-Zn(II) exposure, the mRNA expression profile of osteoblast markers such Runx2, type 1 col, OC, and ON were investigated. In addition to this, the expression of negative regulators of osteoblast development such Smad7, Smurf1, and HDAC7 waere studied by Real time RT-PCR analysis. The osteogenic role of prepared complex under in vivo was studied by an in-house zebrafish scale model followed by osteoblast differentiation markers expression profiling and Ca:P level measurement by ICP-MS. Rutin and the rutin-Zn(II) complex were found to be non-toxic till 10 μM and increased the expression of osteoblast differentiation marker genes. It also enhanced calcium deposition in both in vitro and in vivo models. Osteogenic property of rutin-Zn(II) in hDPSCs was found be mediated by Smad7, Smurf1, and HDAC7 and enhancing Runx2 expression. Our study warrants the possible use of rutin-Zn(II) as naïve agent or in combination with other bone scaffolding systems/materials for bone tissue engineering applications.
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Xu QJ, Zuo CS, Liu DY, Shi WZ. Studies on the Structure and Catalytic Properties for Heck Reaction of Troxerutin Supported Palladium Catalyst. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2019. [DOI: 10.1134/s0040579518060155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zaheer MM, Yasin NA, Ahmad SR, Khan WU, Ahmad A, Ali A, Rehman SU. Amelioration of cadmium stress in gladiolus ( Gladiolus grandiflora L.) by application of potassium and silicon. JOURNAL OF PLANT NUTRITION 2018; 41:461-476. [DOI: 10.1080/01904167.2017.1385808] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 01/20/2017] [Indexed: 06/16/2023]
Affiliation(s)
| | | | | | | | - Aqeel Ahmad
- RO-Office, University of the Punjab, Lahore, Pakistan
| | - Aamir Ali
- Botany Department, University of Sargodha, Sargodha, Pakistan
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Mongkhonsin B, Nakbanpote W, Hokura A, Nuengchamnong N, Maneechai S. Phenolic compounds responding to zinc and/or cadmium treatments in Gynura pseudochina (L.) DC. extracts and biomass. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2016; 109:549-560. [PMID: 27837723 DOI: 10.1016/j.plaphy.2016.10.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/26/2016] [Accepted: 10/27/2016] [Indexed: 06/06/2023]
Abstract
Gynura pseudochina (L.) DC. is a Zn/Cd hyperaccumulative plant. In an in vivo system under controlled plant age, this research reveals that phenolic compounds and lignification play beneficial roles in protecting G. pseudochina from exposure to an excess of Zn and/or Cd, and Zn reduces Cd toxicity under the dual treatments. The total phenolic content (TPC), total flavonoid content (TFC), and half-maximal inhibitory concentration (IC50) values correspond to the metal dose-response curves. Liquid chromatography-electrospray ionization-quadrupole time of flight-tandem mass spectrometry (LC-ESI-QTOF-MS/MS) is used to characterize phenolic compounds and their glycosides, which could play roles in antioxidant activities and in the esterification of the cell wall, especially derivatives of p-coumaric and caffeic acid. Confocal laser scanning microscopy (CLSM) and micro X-ray fluorescence (μ-XRF) imaging revealed that the accumulation of Zn and Cd in the cell wall involves flavonoid compounds. Low extractable pools of Cd and Zn in the leaf extracts indicate that these elements are tightly bound to the plant biomass structures. The bulk X-ray absorption near edge structure (XANES) spectra indicate that Zn2+ and Cd2+ dominate with O and S ligands, which could be provided by cell walls, phenolic compounds, and sulphur protein. Consequently, the benefit of these results is to support the growth of G. pseudochina for phytoremediation in a Zn- and/or Cd-contaminated site.
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Affiliation(s)
- Bodin Mongkhonsin
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham 44150, Thailand
| | - Woranan Nakbanpote
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham 44150, Thailand.
| | - Akiko Hokura
- Department of Green and Sustainable Chemistry, Tokyo Denki University, Senju-Asahicho, Adachi, Tokyo, 120-8551, Japan
| | - Nitra Nuengchamnong
- Science Laboratory Centre, Faculty of Science, Naresuan University, Phitsanulok 65000, Thailand
| | - Suthira Maneechai
- Department of Biology, Faculty of Science, Mahasarakham University, Khamriang, Kantarawichai, Maha Sarakham 44150, Thailand
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8
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Clergeaud G, Dabbagh-Bazarbachi H, Ortiz M, Fernández-Larrea JB, O’Sullivan CK. A simple liposome assay for the screening of zinc ionophore activity of polyphenols. Food Chem 2016; 197:916-23. [DOI: 10.1016/j.foodchem.2015.11.057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 11/11/2015] [Accepted: 11/12/2015] [Indexed: 12/20/2022]
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9
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Ahmad P, Abdel Latef AA, Abd_Allah EF, Hashem A, Sarwat M, Anjum NA, Gucel S. Calcium and Potassium Supplementation Enhanced Growth, Osmolyte Secondary Metabolite Production, and Enzymatic Antioxidant Machinery in Cadmium-Exposed Chickpea (Cicer arietinum L.). FRONTIERS IN PLANT SCIENCE 2016; 7:513. [PMID: 27200003 PMCID: PMC4847423 DOI: 10.3389/fpls.2016.00513] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2016] [Accepted: 04/01/2016] [Indexed: 05/18/2023]
Abstract
This work examined the role of exogenously applied calcium (Ca; 50 mM) and potassium (K; 10 mM) (alone and in combination) in alleviating the negative effects of cadmium (Cd; 200 μM) on growth, biochemical attributes, secondary metabolites and yield of chickpea (Cicer arietinum L.). Cd stress significantly decreased the length and weight (fresh and dry) of shoot and root and yield attributes in terms of number of pods and seed yield (vs. control). Exhibition of decreases in chlorophyll (Chl) a, Chl b, and total Chl was also observed with Cd-exposure when compared to control. However, Cd-exposure led to an increase in the content of carotenoids. In contrast, the exogenous application of Ca and K individually as well as in combination minimized the extent of Cd-impact on previous traits. C. arietinum seedlings subjected to Cd treatment exhibited increased contents of organic solute (proline, Pro) and total protein; whereas, Ca and K-supplementation further enhanced the Pro and total protein content. Additionally, compared to control, Cd-exposure also caused elevation in the contents of oxidative stress markers (hydrogen peroxidase, H2O2; malondialdehyde, MDA) and in the activity of antioxidant defense enzymes (superoxide dismutase, SOD; catalase, CAT; ascorbate peroxidase, APX; glutathione reductase, GR). Ca, K, and Ca + K supplementation caused further enhancements in the activity of these enzymes but significantly decreased contents of H2O2 and MDA, also that of Cd accumulation in shoot and root. The contents of total phenol, flavonoid and mineral elements (S, Mn, Mg, Ca and K) that were also suppressed in Cd stressed plants in both shoot and root were restored to appreciable levels with Ca- and K-supplementation. However, the combination of Ca + K supplementation was more effective in bringing the positive response as compared to individual effect of Ca and K on Cd-exposed C. arietinum. Overall, this investigation suggests that application of Ca and/or K can efficiently minimize Cd-toxicity and eventually improve health and yield in C. arietinum by the cumulative outcome of the enhanced contents of organic solute, secondary metabolites, mineral elements, and activity of antioxidant defense enzymes.
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Affiliation(s)
- Parvaiz Ahmad
- Department of Botany and Microbiology, Faculty of Science, King Saud UniversityRiyadh, Saudi Arabia
- Department of Botany, Sri Pratap CollegeSrinagar, India
- *Correspondence: Parvaiz Ahmad
| | - Arafat A. Abdel Latef
- Botany Department, Faculty of Science, South Valley UniversityQena, Egypt
- Biology Department, College of Applied Medical Sciences, Taif UniversityTaif, Saudi Arabia
| | - Elsayed F. Abd_Allah
- Department of Plant Production, Faculty of Food and Agricultural Sciences, King Saud UniversityRiyadh, Saudi Arabia
| | - Abeer Hashem
- Department of Botany and Microbiology, Faculty of Science, King Saud UniversityRiyadh, Saudi Arabia
- Mycology and Plant Disease Survey Department, Agriculture Research Center, Plant Pathology Research InstituteGiza, Egypt
| | - Maryam Sarwat
- Pharmaceutical Biotechnology, Amity Institute of Pharmacy, Amity UniversityUttar Pradesh, India
| | - Naser A. Anjum
- Department of Chemistry, Centre for Environmental and Marine Studies, University of AveiroAveiro, Portugal
| | - Salih Gucel
- Centre for Environmental Research, Near East UniversityLefkosa, Cyprus
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Bimpilas A, Tsimogiannis D, Balta-Brouma K, Lymperopoulou T, Oreopoulou V. Evolution of phenolic compounds and metal content of wine during alcoholic fermentation and storage. Food Chem 2015; 178:164-71. [DOI: 10.1016/j.foodchem.2015.01.090] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 11/12/2014] [Accepted: 01/19/2015] [Indexed: 10/24/2022]
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Si YX, Yin SJ, Oh S, Wang ZJ, Ye S, Yan L, Yang JM, Park YD, Lee J, Qian GY. An Integrated Study of Tyrosinase Inhibition by Rutin: Progress using a Computational Simulation. J Biomol Struct Dyn 2012; 29:999-1012. [DOI: 10.1080/073911012010525028] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Chohan ZH, Shad HA, Supuran CT. Synthesis, characterization and biological studies of sulfonamide Schiff's bases and some of their metal derivatives. J Enzyme Inhib Med Chem 2011; 27:58-68. [PMID: 21534864 DOI: 10.3109/14756366.2011.574623] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A new series of Schiff base ligands derived from sulfonamide and their metal(II) complexes [cobalt(II), copper(II), nickel(II) and zinc(II)] have been synthesized and characterized. The nature of bonding and structure of all the synthesized compounds has been explored by physical, analytical and spectral data of the ligands and their metal(II) complexes. The authors suggest that all the prepared complexes possess an octahedral geometry. The ligands and metal(II) complexes have been screened for their in vitro antibacterial activity against bacterial strains, Escherichia coli, Shigella flexneri, Pseudomonas aeruginosa, Salmonella typhi and for antifungal activity against fungal strains, Trichophyton longifusus, Candida albicans, Aspergillus flavus, Microsporum canis, Fusarium solani and Candida glabrata. These assays enabled the identification of the metal complexes as an effective antimicrobial agent with low cytotoxicity.
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Affiliation(s)
- Zahid H Chohan
- Department of Chemistry, Bahauddin Zakariya University, Multan, Pakistan.
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14
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Torres S, Ferraudi G, Aguirre MJ, Isaacs M, Matsuhiro B, Chandía NP, Mendoza L. On the Ligand-to-Metal Charge-Transfer Photochemistry of the Copper(II) Complexes of Quercetin and Rutin. Helv Chim Acta 2011. [DOI: 10.1002/hlca.201000227] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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15
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Niu S, Han B, Cao W, Zhang S. Sensitive DNA biosensor improved by Luteolin copper(II) as indicator based on silver nanoparticles and carbon nanotubes modified electrode. Anal Chim Acta 2009; 651:42-7. [DOI: 10.1016/j.aca.2009.08.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2009] [Revised: 07/30/2009] [Accepted: 08/11/2009] [Indexed: 11/27/2022]
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16
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Garcia Freitas KH, Medeiros RA, Fatibello-Filho O. Voltammetric Determination of Rutin Using a Carbon Composite Electrode Modified with Copper(II)-Resin. ANAL LETT 2009. [DOI: 10.1080/00032710902722087] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Niu SY, Wu ML, Hu LZ, Mei ZH, Liu SF. Nucleic acid biosensor for DNA hybridization detection using rutin–Cu as an electrochemical indicator. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.09.038] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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18
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Tucker G, Robards K. Bioactivity and structure of biophenols as mediators of chronic diseases. Crit Rev Food Sci Nutr 2009; 48:929-66. [PMID: 18949595 DOI: 10.1080/10408390701761977] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Biophenols and their associated activity have generated intense interest. Current topics of debate are their bioavailability and bioactivity. It is generally assumed that their plasma concentrations are insufficient to produce the health benefits previously attributed to their consumption. However, data on localized in vivo concentrations are not available and many questions remain unanswered. Potential mechanisms by which they may exert significant bioactivity are discussed together with structure activity relationships. Biophenols are highly reactive species and they can react with a range of other compounds. Products of their reaction when functioning as antioxidants are examined.
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Affiliation(s)
- Gregory Tucker
- School of Biosciences, University of Nottingham, Loughborough, Leics, UK
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19
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Sungur S, Uzar A. Investigation of complexes tannic acid and myricetin with Fe(III). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2008; 69:225-9. [PMID: 17493867 DOI: 10.1016/j.saa.2007.03.038] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2006] [Accepted: 03/06/2007] [Indexed: 05/15/2023]
Abstract
The pH dependence of the complexes was determined by both potentiometric and spectrophotometric studies. Stability constants and stoichiometries of the formed complexes were determined using slope ratio method. Fe(III) was formed complexes with tannic acid of various stoichiometries, which in the 1:1 molar ratio at pH<3, in the 2:1 molar ratio at pH 3-7 and in the 4:1 molar ratio at pH>7. Fe(III) was formed complexes with myricetin in the 1:2 molar ratio at pH 4 and 5 and in the 1:1 molar ratio at pH 6. Stability constant values were found to be 10(5) to 10(17) and 10(5) to 10(9) for Fe(III)-tannic acid complexes and Fe(III)-myricetin complexes. Both tannic acid and myricetin were possessed minimum affinities to Cu(II) and Zn(II). They had less affinity for Al(III) than for Fe(III).
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Affiliation(s)
- Sana Sungur
- Department of Chemistry, Science and Letters Faculty, Mustafa Kemal University, 31024 Antakya, Hatay, Turkey.
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SEPTHUM C, MORGAN J, HICK L, BREMNER JB, RATTANAPHANI S, RATTANAPHANI V. Detection of Al(III) and Ga(III) Complexes with Morin by Electrospray Ionization Mass Spectrometry. ANAL SCI 2007; 23:1209-14. [DOI: 10.2116/analsci.23.1209] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | - Jody MORGAN
- Department of Chemistry, University of Wollongong
| | - Larry HICK
- Department of Chemistry, University of Wollongong
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Davis BD, Needs PW, Kroon PA, Brodbelt JS. Identification of isomeric flavonoid glucuronides in urine and plasma by metal complexation and LC-ESI-MS/MS. JOURNAL OF MASS SPECTROMETRY : JMS 2006; 41:911-20. [PMID: 16810646 DOI: 10.1002/jms.1050] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Noncovalent complexes were used for structural determination and isomer differentiation of flavonoid glucuronides. Several flavonoid glucuronides including naringenin-7-O-glucuronide, synthesized here for the first time, were used as test compounds. Electrospray ionization quadrupole ion trap mass spectrometry with collision-induced dissociation (CID) was used to analyze complexes of the form [Co(II) (L-H) (Aux)]+ and [Co(II) (L-H) (Aux)2]+, in which L is the flavonoid glucuronide and Aux is a phenanthroline-based ligand. These complexes yielded characteristic fragmentation patterns that facilitated assignment of the substitution position of the glucuronides. The methods were adapted to liquid chromatography/tandem mass spectrometry (LC-MS/MS) with postcolumn cobalt complexation and were tested on extracts from biological fluids. The metabolites naringenin-7-O-glucuronide and naringenin-4'-O-glucuronide were detected in human urine following the consumption of grapefruit juice. Isomeric quercetin glucuronides were identified and differentiated after spiking rat plasma at the 1 microM level, proving that the new methods are effective at biologically relevant concentrations.
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Affiliation(s)
- Barry D Davis
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA
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Di Marco VB, Bombi GG. Electrospray mass spectrometry (ESI-MS) in the study of metal-ligand solution equilibria. MASS SPECTROMETRY REVIEWS 2006; 25:347-79. [PMID: 16369936 DOI: 10.1002/mas.20070] [Citation(s) in RCA: 215] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In the 20 years, since the introduction of electrospray mass spectrometry (ESI-MS), the use of this technique in various fields of inorganic, organometallic, and analytical chemistry has been steadily increasing. In this study, the application of ESI-MS to the study of metal-ligand solution equilibria is reviewed (till 2004 included). In a first section, advantages and drawbacks of ESI-MS in this type of application are described. Subsequently, a list of ca. 300 studies is reported, in which ESI-MS was used to give number and stoichiometry of the species at equilibrium, or also to estimate their stability constants. All studies are classified according to the metal ions under examination. Other related applications, such as host-guest interactions and metal ion-protein binding studies, are briefly reviewed as well.
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Ensafi A, Hajian R. Determination of Rutin in Pharmaceutical Compounds and Tea Using Cathodic Adsorptive Stripping Voltammetry. ELECTROANAL 2006. [DOI: 10.1002/elan.200503433] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Teixeira S, Siquet C, Alves C, Boal I, Marques MP, Borges F, Lima JLFC, Reis S. Structure-property studies on the antioxidant activity of flavonoids present in diet. Free Radic Biol Med 2005; 39:1099-108. [PMID: 16198236 DOI: 10.1016/j.freeradbiomed.2005.05.028] [Citation(s) in RCA: 107] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2005] [Revised: 05/25/2005] [Accepted: 05/31/2005] [Indexed: 11/24/2022]
Abstract
The screening of natural flavonoids for their bioactivity as antioxidants is usually carried out by determinination of their profile as chain-breaking antioxidants, by the evaluation of their direct free radical-scavenging activity as hydrogen- or electron-donating compounds. Since this may not be the only mechanism underlying the antioxidant activity it is important to check the ability of these compounds to act as chelators of transition metal ions. Accordingly, in the present study the acidity constants of catechin and taxifolin, as well as the formation constants of the corresponding copper (II) complexes, were investigated by potentiometry and/or spectrophotometry. Moreover, a detailed quantitative examination of the coordination species formed is presented. In addition, the partition coefficients of both catechin and taxifolin in a biomimetic system (micelles) were determined, since these properties may also contribute to the antioxidant behavior of this type of compound. The log P values determined depend on the electrostatic interactions of the compounds with the differently charged micelles (the highest values were obtained for zwitterionic and cationic micelles). The prooxidant behavior of the compounds was assessed through the oxidation of 2'-deoxyguanosine, induced by a Fenton reaction, catalyzed by copper. The data obtained reveal that the flavonoids under study did not present prooxidant activity, in this particular system. The results obtained are evidence of a clear difference among the pKa, the complexation properties, and the lipophilicity of the flavonoids studied, which can partially explain their distinct antioxidant activity. The most stable geometries of the free compounds were determined by theoretical (ab initio) methods, in order to properly account for the electron correlation effects which occur in these systems, thus allowing a better interpretation of the experimental data.
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Affiliation(s)
- Susana Teixeira
- REQUIMTE, Departamento de Química-Física, Faculdade de Farmácia, Universidade do Porto, Rua Anibal Cunha 164, 4099-030 Porto, Portugal
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Esparza I, Salinas Í, Santamaría C, García-Mina J, Fernández J. Electrochemical and theoretical complexation studies for Zn and Cu with individual polyphenols. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2005.04.029] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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