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Schneider E, Tita MD, Guerreiro JL, Duarte AJ, Moreira FTC. Prussian blue nanocubes with peroxidase-like activity for polyphenol detection in commercial beverages. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3663-3674. [PMID: 38804266 DOI: 10.1039/d4ay00201f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
The present study describes an efficient method for the determination of polyphenol content in beverages based on a composite material of graphene oxide decorated with Prussian blue nanocubes (rGO/PBNCs). In this method, rGO/PBNCs act as a nanoenzyme with peroxidase-like catalytic activity and produce a colorimetric product in the presence of hydrogen peroxide and tetramethylbenzidine (TMB). To verify the effectiveness of the method, we used two model standards for antioxidants: gallic acid (GA) and tannic acid (TA). The method validation included a comparison of the performance of a natural enzyme and an artificial one (rGO/PBNCs) and two polyphenols in the analysis of commercial beverage samples. After optimization, a pH of 4, ambient temperature (22 °C), a reaction time of 2 minutes and an rGO/PBNCs concentration of 0.01 μg mL-1 were found to be the most favorable conditions. The detection limits obtained were 5.6 μmol L-1 for GA and 1.5 μmol L-1 for TA. Overall, rGO/PBNCs offer advantages over natural enzymes in terms of stability, versatility, scalability and durability, making them attractive candidates for a wide range of catalytic and sensory applications.
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Affiliation(s)
- Eduarda Schneider
- CIETI-LabRISE, School of Engineering, Polytechnic of Porto, R. Dr António Bernardino de Almeida, 431, 4200-072, Porto, Portugal.
| | - Marta D Tita
- CIETI-LabRISE, School of Engineering, Polytechnic of Porto, R. Dr António Bernardino de Almeida, 431, 4200-072, Porto, Portugal.
| | - Joana L Guerreiro
- CIETI-LabRISE, School of Engineering, Polytechnic of Porto, R. Dr António Bernardino de Almeida, 431, 4200-072, Porto, Portugal.
- CEB - Centre of Biological Engineering, University of Minho, 4710-057 Braga, Portugal
- LABBELS - Associate Laboratory, Braga, Guimarães, Portugal
| | - Abel J Duarte
- CIETI-LabRISE, School of Engineering, Polytechnic of Porto, R. Dr António Bernardino de Almeida, 431, 4200-072, Porto, Portugal.
| | - Felismina T C Moreira
- CIETI-LabRISE, School of Engineering, Polytechnic of Porto, R. Dr António Bernardino de Almeida, 431, 4200-072, Porto, Portugal.
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Jiang W, Zheng S, Yuan C, Gao Q, Xiang C, Tian S, Li J, Zhao Y. Study on extraction technology and antioxidant activity of total alkaloids from Hemsleya chinensis based on orthogonal design and BP neural network. Heliyon 2023; 9:e20680. [PMID: 37860513 PMCID: PMC10582500 DOI: 10.1016/j.heliyon.2023.e20680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/28/2023] [Accepted: 10/04/2023] [Indexed: 10/21/2023] Open
Abstract
In this study, total alkaloids from Hemsleya chinensis were extracted and tested for their antioxidant properties. To optimize extraction methods, a single factor experiment was conducted to determine the total alkaloid concentrations of H. chinensis using the L9 (34) orthogonal design test method and the BP neural network (BPNN), resulting in the optimum extraction conditions for total alkaloids. The optimal conditions for H. chinensis alkaloids extraction with acid water are: HCl concentration is 0.50 %, extraction temperature is 85 °C, material-liquid ratio is 1:64.5, and extraction rate of alkaloids is 0.2785 ± 0.0003 mg/mL. The alkaloid from H. chinensis exhibited antioxidant activity in a quantity-effect relationship with activity. These findings showed that the procedure to be reasonable, the alkaloid extraction efficiency to be high, and the method could be used to extract the alkaloids of H. chinensis, improving the development of natural and healthy medicinal resources for the pharmaceutical and food industries.
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Affiliation(s)
- Weiwei Jiang
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, 650106, China
| | - Shaoyu Zheng
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Chengxiao Yuan
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Yunnan, 650201, China
| | - Qingqing Gao
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Yunnan, 650201, China
| | - Chunfan Xiang
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Yunnan, 650201, China
| | - Shunwei Tian
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Jianmei Li
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Yan Zhao
- National-Local Joint Engineering Research Center on Gemplasm Innovation & Utilization of Chinese Medicinal Materials in Southwest, The Key Laboratory of Medicinal Plant Biology of Yunnan Province, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
- Yunnan Characteristic Plant Extraction Laboratory, Kunming, Yunnan, 650106, China
- College of Agronomy and Biotechnology, Yunnan Agricultural University, Yunnan, 650201, China
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Pushparaj K, Balasubramanian B, Kandasamy Y, Arumugam VA, Kaliannan D, Arumugam M, Abdulrahman Alodaini H, Atef Hatamleh A, Pappuswamy M, Meyyazhagan A. Green synthesis, characterization of silver nanoparticles using aqueous leaf extracts of Solanum melongena and in vitro evaluation of antibacterial, pesticidal and anticancer activity in human MDA-MB-231 breast cancer cell lines. JOURNAL OF KING SAUD UNIVERSITY - SCIENCE 2023; 35:102663. [DOI: 10.1016/j.jksus.2023.102663] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
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El Hatmi H, Jrad Z, Mkadem W, Chahbani A, Oussaief O, Zid MB, Nouha M, Zaidi S, Khorchani S, Belguith K, Mihoubi NB. Fortification of soft cheese made from ultrafiltered dromedary milk with Allium roseum powder: Effects on textural, radical scavenging, phenolic profile and sensory characteristics. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109885] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Dobrecky C, Marchini T, Ricco R, Garcés M, Gadano A, Carballo M, Wagner M, Lucangioli S, Evelson P. Antioxidant Activity of Flavonoid Rich Fraction of Ligaria cuneifolia (Loranthaceae). Chem Biodivers 2020; 17:e2000302. [PMID: 32725761 DOI: 10.1002/cbdv.202000302] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 07/28/2020] [Indexed: 02/06/2023]
Abstract
Ligaria cuneifolia (Ruiz & Pav.) Tiegh. (Loranthaceae), the 'Argentine mistletoe', is a hemiparasite species largely used in folk medicine. The aim of this study was to evaluate the antioxidant activity using in vitro, ex vivo, and in vivo methods. A screening of phenolics was performed by UV spectroscopy on different fractions. The antioxidant capacity was evaluated in vitro by the 1,1-diphenyl-2-picrylhydrazyl radical (DPPH. ) assay on a crude extract (CE), ethyl acetate fraction (EAF), and aqueous fraction (AF). The results suggest that EAF concentrates the antioxidant capacity and was selected for further analysis. Capillary electrophoresis was employed to monitor the individual antioxidant capacity and the potential contributors to this effect. Ex vivo assays showed an efficient inhibition of tert-butyl hydroperoxide-induced rat liver phospholipid oxidation, as well as rat brain autoxidation, and H2 O2 -induced DNA damage in blood monocytes. In vivo, the topical application of EAF significantly decreased skin chemiluminescence in a mice model.
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Affiliation(s)
- Cecilia Dobrecky
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Farmacología, Cátedra de Farmacobotánica, Buenos Aires, C1113AAD, Argentina.,Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Tecnología Farmacéutica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, C1113AAD, Argentina
| | - Timoteo Marchini
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Buenos Aires, C1113AAD, Argentina.,Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, C1113AAD, Argentina
| | - Rafael Ricco
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Farmacología, Cátedra de Farmacobotánica, Buenos Aires, C1113AAD, Argentina
| | - Mariana Garcés
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Buenos Aires, C1113AAD, Argentina
| | - Andrea Gadano
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Bioquímica Clínica, CIGETOX-INFIBIOC, Buenos Aires, C1113AAD, Argentina
| | - Marta Carballo
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Bioquímica Clínica, CIGETOX-INFIBIOC, Buenos Aires, C1113AAD, Argentina
| | - Marcelo Wagner
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Farmacología, Cátedra de Farmacobotánica, Buenos Aires, C1113AAD, Argentina
| | - Silvia Lucangioli
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Tecnología Farmacéutica, Cátedra de Tecnología Farmacéutica I, Buenos Aires, C1113AAD, Argentina.,Universidad de Buenos Aires, CONICET, Facultad de Farmacia y Bioquímica, Departamento de Tecnología Farmacéutica, Buenos Aires, C1113AAD, Argentina
| | - Pablo Evelson
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica y Fisicoquímica, Cátedra de Química General e Inorgánica, Buenos Aires, C1113AAD, Argentina.,Universidad de Buenos Aires, CONICET, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Facultad de Farmacia y Bioquímica, Buenos Aires, C1113AAD, Argentina
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Phytochemical characterization and antimicrobial evaluation of young leaf/shoot and press cake extracts from Hippophae rhamnoides L. FOOD BIOSCI 2018. [DOI: 10.1016/j.fbio.2018.05.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Sereia AL, Longhini R, Lopes GC, de Mello JCP. Capillary Electrophoresis as Tool for Diastereomeric Separation in a Trichilia catigua Fraction. PHYTOCHEMICAL ANALYSIS : PCA 2017; 28:144-150. [PMID: 27910216 DOI: 10.1002/pca.2653] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2016] [Revised: 09/19/2016] [Accepted: 09/25/2016] [Indexed: 06/06/2023]
Abstract
INTRODUCTION The tree Trichilia catigua, popularly known as "catuaba", shows several biological activities and has emerged as a potential source of new drugs. Considering that more than 10 species are known under the same popular name, regulatory agencies require more rigorous quality control of this medicinal plant. OBJECTIVE To develop and validate a methodology using capillary electrophoresis (CE) with ultraviolet (UV) detection for analysing polyphenols in the ethyl-acetate fraction (EAF) of Trichilia catigua. METHODOLOGY Different electrophoretic conditions (such as wavelength of UV detection, voltage, buffer concentration and pH, cyclodextrin type and concentration) were investigated. After optimisation, borate buffer 80 mmol/L at pH 8.80 with 2-hydroxypropyl-β-cyclodextrin 10 mmol/L was selected as background electrolyte. A voltage reduction was used to improve the separation of a diastereomeric pair of cinchonains. RESULTS The method proved to be simple, sensitive, accurate, linear, precise and reproducible. For the first time in natural products analysis, a voltage reduction and hydroxypropyl-β-cyclodextrin were used to improve the separation of diastereomeric pairs. Until now, this is the only described methodology able to separate catechin, epicatechin, cinchonains Ia, Ib, IIa, and IIb from Trichilia catigua samples on the same run in less than 12 min. When compared to the high performance liquid chromatography with photo-diode array detection (HPLC-PDA) method previously developed by our research group, the CE method was more efficient, faster, less expensive and less polluting. CONCLUSION Our results demonstrate that this method could be employed in a quality-control laboratory for the quantification of polyphenols in EAF of Trichilia catigua. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Ana Luiza Sereia
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, PR. Avenida Colombo, 5790, BR-87020-900, Maringá, PR, Brazil
| | - Renata Longhini
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, PR. Avenida Colombo, 5790, BR-87020-900, Maringá, PR, Brazil
| | - Gisely Cristiny Lopes
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, PR. Avenida Colombo, 5790, BR-87020-900, Maringá, PR, Brazil
| | - João Carlos Palazzo de Mello
- Programa de Pós-Graduação em Ciências Farmacêuticas, Department of Pharmacy, Universidade Estadual de Maringá, Maringá, PR. Avenida Colombo, 5790, BR-87020-900, Maringá, PR, Brazil
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Jameel E, Meena P, Maqbool M, Kumar J, Ahmed W, Mumtazuddin S, Tiwari M, Hoda N, Jayaram B. Rational design, synthesis and biological screening of triazine-triazolopyrimidine hybrids as multitarget anti-Alzheimer agents. Eur J Med Chem 2017; 136:36-51. [PMID: 28478343 DOI: 10.1016/j.ejmech.2017.04.064] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 04/02/2017] [Accepted: 04/23/2017] [Indexed: 12/22/2022]
Abstract
In our endeavor towards the development of potent multitarget ligands for the treatment of Alzheimer's disease, a series of triazine-triazolopyrimidine hybrids were designed, synthesized and characterized by various spectral techniques. Docking and scoring techniques were used to design the inhibitors and to display their interaction with key residues of active site. Organic synthesis relied upon convergent synthetic routes were mono and di-substituted triazines were connected with triazolopyrimidine using piperazine as a linker. In total, seventeen compounds were synthesized in which the di-substituted triazine-triazolopyrimidine derivatives 9a-d showed better acetylcholinesterase (AChE) inhibitory activity than the corresponding tri-substituted triazine-triazolopyrimidine derivatives 10a-f. Out of the disubstituted triazine-triazolopyrimidine based compounds, 9a and 9b showed encouraging inhibitory activity on AChE with IC50 values 0.065 and 0.092 μM, respectively. Interestingly, 9a and 9b also demonstrated good inhibition selectivity towards AChE over BuChE by ∼28 folds. Furthermore, kinetic analysis and molecular modeling studies showed that 9a and 9b target both catalytic active site as well as peripheral anionic site of AChE. In addition, these derivatives effectively modulated Aβ self-aggregation as investigated through CD spectroscopy, ThT fluorescence assay and electron microscopy. Besides, these compounds exhibited potential antioxidants (2.15 and 2.91 trolox equivalent by ORAC assay) and metal chelating properties. In silico ADMET profiling highlighted that, these novel triazine derivatives have appropriate drug like properties and possess very low toxic effects in the primarily pharmacokinetic study. Overall, the multitarget profile exerted by these novel triazine molecules qualified them as potential anti-Alzheimer drug candidates in AD therapy.
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Affiliation(s)
- Ehtesham Jameel
- Department of Chemistry, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi 110025, India
| | - Poonam Meena
- Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, New Delhi 110007, India
| | - Mudasir Maqbool
- Department of Chemistry, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi 110025, India
| | - Jitendra Kumar
- Department of Chemistry, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi 110025, India
| | - Waqar Ahmed
- Department of Chemistry, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi 110025, India
| | - Syed Mumtazuddin
- Department of Chemistry, B. R. Ambedkar Bihar University, Muzaffarpur 842001, Bihar, India
| | - Manisha Tiwari
- Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, New Delhi 110007, India.
| | - Nasimul Hoda
- Department of Chemistry, Jamia Millia Islamia (Central University), Jamia Nagar, New Delhi 110025, India.
| | - B Jayaram
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India; Kusuma School of Biological Sciences, IIT Delhi, New Delhi 110016, India; Supercomputing Facility for Bioinformatics & Computational Biology, IIT Delhi, New Delhi 110016, India
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Ruan X, Cui WX, Yang L, Li ZH, Liu B, Wang Q. Extraction of total alkaloids, peimine and peiminine from the flower of Fritillaria thunbergii Miq using supercritical carbon dioxide. J CO2 UTIL 2017. [DOI: 10.1016/j.jcou.2017.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Optimization of Supercritical Fluid Extraction of Total Alkaloids, Peimisine, Peimine and Peiminine from the Bulb of Fritillaria thunbergii Miq, and Evaluation of Antioxidant Activities of the Extracts. MATERIALS 2016; 9:ma9070524. [PMID: 28773648 PMCID: PMC5456939 DOI: 10.3390/ma9070524] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/23/2016] [Accepted: 06/24/2016] [Indexed: 11/17/2022]
Abstract
Supercritical fluid extraction (SFE) was used to extract total alkaloids, peimisine, peimine and peiminine from the bulb of Fritillaria thunbergii Miq. The antioxidant capacity of the extracts was evaluated by DPPH radical scavenging activity (DPPH-RSA), ABTS radical scavenging activity (ABTS-RSA) and ferric reducing capacity (FRAP) assay. A central composite design (CCD) with four variables and five levels was employed for optimization of process parameters, and response surface plots were constructed in accordance with a second order polynomial model. Under optimal conditions of 3.0 h, 60.4 °C, 26.5 MPa and 89.3% ethanol, the highest yields were predicted to be 3.8 mg/g for total alkaloids, 0.5 mg/g for peimisine, 1.3 mg/g for peimine and 1.3 mg/g for peiminine, and the antioxidant capacity of extracts displayed EC50, DPPH value of 5.5 mg/mL, EC50, ABTS value of 0.3 mg/mL and FRAP value of 118.2 mg ascorbic acid equivalent (AAE)/100 g.
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Maqbool M, Manral A, Jameel E, Kumar J, Saini V, Shandilya A, Tiwari M, Hoda N, Jayaram B. Development of cyanopyridine–triazine hybrids as lead multitarget anti-Alzheimer agents. Bioorg Med Chem 2016; 24:2777-88. [DOI: 10.1016/j.bmc.2016.04.041] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 04/20/2016] [Accepted: 04/21/2016] [Indexed: 11/15/2022]
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Identification and characterization of phenolic compounds in hydromethanolic extracts of sorghum wholegrains by LC-ESI-MS(n). Food Chem 2016; 211:215-26. [PMID: 27283625 DOI: 10.1016/j.foodchem.2016.05.052] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Revised: 05/06/2016] [Accepted: 05/09/2016] [Indexed: 01/16/2023]
Abstract
Hydromethanolic extracts of brown, red, and white sorghum whole grains were analysed by LC-MS(n) in negative ESI mode within the range m/z 150-550amu. Besides the flavonoids already reported in sorghum, a number of flavonoids were also identified in the sorghum grain for the first time, including flavanones, flavonols and flavanonols, and flavan-3-ol derivatives. Various phenylpropane glycerides were also found in the sorghum grain, the majority of them are reported here for the first time, and a few of them were detected with abundant peaks in the extracts, indicating they are another important class of phenolic compounds in sorghum. In addition, phenolamides were also found in sorghum grain, which have not been reported before, and dicaffeoyl spermidine was detected in high abundance in the extracts of all three type sorghum grains. These results confirmed that sorghum is a rich source of various phenolic compounds.
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Liu J, Tian J, Li J, Azietaku JT, Zhang BL, Gao XM, Chang YX. The in-capillary DPPH-capillary electrophoresis-the diode array detector combined with reversed-electrode polarity stacking mode for screening and quantifying major antioxidants inCuscuta chinensisLam. Electrophoresis 2016; 37:1632-9. [DOI: 10.1002/elps.201500426] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 02/10/2016] [Accepted: 02/24/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Jiao Liu
- Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
| | - Ji Tian
- Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
| | - Jin Li
- Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
| | - John Teye Azietaku
- Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
| | - Bo-li Zhang
- Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
| | - Xiu-mei Gao
- Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
| | - Yan-xu Chang
- Tianjin State Key Laboratory of Modern Chinese Medicine; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
- Tianjin Key Laboratory of Phytochemistry and Pharmaceutical Analysis; Tianjin University of Traditional Chinese Medicine; Tianjin P. R. China
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Im K, Lee JY, Byeon H, Hwang KW, Kang W, Whang WK, Min H. In Vitroantioxidative and anti-inflammatory activities of the ethanol extract of eggplant (Solanum melongena)stalks in macrophage RAW 264.7 cells. FOOD AGR IMMUNOL 2016. [DOI: 10.1080/09540105.2016.1150427] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Xing X, Chen H. Determination of the Pharmaceutically Active Components in Peanut Shells by Micellar Electrokinetic Capillary Chromatography. ANAL LETT 2015. [DOI: 10.1080/00032719.2014.971364] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Addition of reagents to the sheath liquid: A novel concept in capillary electrophoresis-mass spectrometry. J Chromatogr A 2014; 1343:182-7. [DOI: 10.1016/j.chroma.2014.04.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Revised: 03/31/2014] [Accepted: 04/01/2014] [Indexed: 02/02/2023]
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Salerno L, Modica MN, Pittalà V, Romeo G, Siracusa MA, Di Giacomo C, Sorrenti V, Acquaviva R. Antioxidant activity and phenolic content of microwave-assisted Solanum melongena extracts. ScientificWorldJournal 2014; 2014:719486. [PMID: 24683354 PMCID: PMC3934095 DOI: 10.1155/2014/719486] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Accepted: 12/16/2013] [Indexed: 11/25/2022] Open
Abstract
Eggplant fruit is a very rich source of polyphenol compounds endowed with antioxidant properties. The aim of this study was to extract polyphenols from eggplant entire fruit, pulp, or skin, both fresh and dry, and compare results between conventional extraction and microwave-assisted extraction (MAE). The effects of time exposure (15, 30, 60, and 90 min) and solvent (water 100% or ethanol/water 50%) were also evaluated. The highest amount of polyphenols was found in the extract obtained from dry peeled skin treated with 50% aqueous ethanol, irradiated with microwave; this extract contained also high quantity of flavonoids and showed good antioxidant activity expressed by its capacity to scavenge superoxide anion and to inhibit lipid peroxidation.
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Affiliation(s)
- Loredana Salerno
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Maria N. Modica
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Valeria Pittalà
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Giuseppe Romeo
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Maria A. Siracusa
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Claudia Di Giacomo
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Valeria Sorrenti
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Rosaria Acquaviva
- Dipartimento di Scienze del Farmaco, Università degli Studi di Catania, Viale A. Doria 6, 95125 Catania, Italy
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Navarro M, Núñez O, Saurina J, Hernández-Cassou S, Puignou L. Characterization of fruit products by capillary zone electrophoresis and liquid chromatography using the compositional profiles of polyphenols: application to authentication of natural extracts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:1038-1046. [PMID: 24432703 DOI: 10.1021/jf404776d] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Capillary zone electrophoresis (CZE) and high performance liquid chromatography (HPLC) were applied to the authentication of fruit products based on the compositional profiles of polyphenols. Various sample treatments were used to maximize the overall recovery of polyphenols or specific fractions, such as phenolic acids or anthocyanins. The resulting CZE and HPLC data were treated with Principal Component Analysis (PCA) showing that samples were mainly clustered according to the fruit of origin, with cranberry- and grape-based products clearly separated in groups. A possible adulterated cranberry extract was analyzed more deeply by high resolution mass spectrometry (HRMS) in order to identify the presence of A-type proanthocyanidins, which are characteristic and more abundant in cranberry-based products. In accordance with PCA interpretation, HRMS results indicated that the suspicious sample was not a cranberry-based product, allowing us to validate and demonstrate the suitability of both CZE- and HPLC-proposed methods for the characterization of fruit-based products.
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Affiliation(s)
- Meritxell Navarro
- Department of Analytical Chemistry, University of Barcelona , Martí i Franquès, 1-11, Barcelona E-08028, Spain
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Wu C, Chen R, Wang XS, Shen B, Yue W, Wu Q. Antioxidant and anti-fatigue activities of phenolic extract from the seed coat of Euryale ferox Salisb. and identification of three phenolic compounds by LC-ESI-MS/MS. Molecules 2013; 18:11003-21. [PMID: 24022762 PMCID: PMC6270581 DOI: 10.3390/molecules180911003] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 09/01/2013] [Accepted: 09/02/2013] [Indexed: 01/23/2023] Open
Abstract
This study investigated the antioxidant potential and anti-fatigue effects of phenolics extracted from the seed coat of Euryale ferox Salisb. The in vitro antioxidant potentials, including scavenging DPPH, hydroxyl radical activities and reducing power were evaluated. Antioxidant status in vivo was analyzed by SOD, CAT, GSH-Px activities and the MDA content in liver and kidneys of D-galactose-induced aging mice. The anti-fatigue effect was evaluated using an exhaustive swimming test, along with the determination of LDH, BUN and HG content. The phenolic extract possessed notable antioxidant effects on DPPH, hydroxyl radical scavenging and reducing power. The mice which received the phenolic extract showed significant increases of SOD, CAT (except for in the kidney), GSH-Px activities, and a decrease of MDA content. The average exhaustive swimming time was obviously prolonged. Meanwhile, increase of LDH content and decrease of BUN content were observed after mice had been swimming for 15 min. The HG storage of mice was improved in the high and middle dose extract groups compared with the normal group. The contents of total phenols and gallic acid of the extract were determined. Three compounds in the extract were identified as 5,7-dihydroxy-2-(3,4,5-trihydroxyphenyl)-chroman-4-one, 5,7,4-trihydroxyflavanone and buddlenol E. These results suggest that the extract of E. ferox is a promising source of natural antioxidants and anti-fatigue material for use in functional foods and medicines.
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Affiliation(s)
- ChengYing Wu
- The School of Pharmacy, Nanjing University of Chinese Medicine, No. 138, Xianlin Avenue, Nanjing 210023, Jiangsu, China; E-Mails: (C.Y.W.); (R.C.); (X.S.W.); (B.S.); (W.Y.)
| | - Rong Chen
- The School of Pharmacy, Nanjing University of Chinese Medicine, No. 138, Xianlin Avenue, Nanjing 210023, Jiangsu, China; E-Mails: (C.Y.W.); (R.C.); (X.S.W.); (B.S.); (W.Y.)
- Suzhou Institute for Drug Control, Suzhou 215104, Jiangsu, China
| | - Xin Sheng Wang
- The School of Pharmacy, Nanjing University of Chinese Medicine, No. 138, Xianlin Avenue, Nanjing 210023, Jiangsu, China; E-Mails: (C.Y.W.); (R.C.); (X.S.W.); (B.S.); (W.Y.)
| | - Bei Shen
- The School of Pharmacy, Nanjing University of Chinese Medicine, No. 138, Xianlin Avenue, Nanjing 210023, Jiangsu, China; E-Mails: (C.Y.W.); (R.C.); (X.S.W.); (B.S.); (W.Y.)
| | - Wei Yue
- The School of Pharmacy, Nanjing University of Chinese Medicine, No. 138, Xianlin Avenue, Nanjing 210023, Jiangsu, China; E-Mails: (C.Y.W.); (R.C.); (X.S.W.); (B.S.); (W.Y.)
| | - Qinan Wu
- The School of Pharmacy, Nanjing University of Chinese Medicine, No. 138, Xianlin Avenue, Nanjing 210023, Jiangsu, China; E-Mails: (C.Y.W.); (R.C.); (X.S.W.); (B.S.); (W.Y.)
- Jiangsu Key Laboratory for TCM Formulae Research, Nanjing University of Chinese Medicine, No. 138, Xianlin Avenue, Nanjing 210023, Jiangsu, China
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de Carvalho LM, Monserrat JM, Scholz F, Lima FO, Rosa MBD, Hilgemann M, Müller LS, Faccin H, Ramos PB, Viana C. Substrate-free Determination of the Radical Scavenging Activity of Phenolic Compounds by Photochemical Generation of Hydroxyl Radicals and HPLC-UV Detection. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.724139] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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21
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Eremia SAV, Radu GL, Litescu SC. Monitoring of rosmarinic acid accumulation in sage cell cultures using laccase biosensor. PHYTOCHEMICAL ANALYSIS : PCA 2013; 24:53-8. [PMID: 22718679 DOI: 10.1002/pca.2380] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Revised: 05/22/2012] [Accepted: 05/24/2012] [Indexed: 06/01/2023]
Abstract
INTRODUCTION A recently developed laccase based biosensor is used for polyphenols determination from in vitro Salvia cultures, the results being expressed as rosmarinic acid equivalent content. OBJECTIVE The aim of this work was to use a previously developed laccase biosensor for the determination of total phenolic content from in vitro cultivated Salvia, and to support the biosensors further application for the assessment of polyphenols metabolites. METHODOLOGY The biosensor was constructed by drop casting 3 μL of laccase solution and stabilisation with 0.1 % Nafion solution onto a DropSens carbon screen-printed electrode. Electrochemical measurements were carried out in a 0.1 mol/L phosphate buffer (pH 4.50), the applied working potential being -30 mV versus reference electrode. RESULTS The response of the biosensor developed was characterised in terms of repeatability, accuracy and precision; the limit of detection was 7.5 × 10(-7) mol/L, the limit of determination was 9.5 × 10⁻⁷ mol/L, and linear response range for rosmarinic acid was 1 × 10⁻⁶-10⁻⁵ mol/L. CONCLUSION A stable, sensitive and simple biosensor based on laccase-nafion was used for monitoring the total polyphenolic content from two in vitro cultivated plants. The biosensor response was free of electrochemical interferences and of possible interferences from growth media constituents, demonstrating a high sensitivity for rosmarinic acid determination in cell culture suspensions.
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Affiliation(s)
- Sandra A V Eremia
- Centre of Bioanalysis, National Institute for Biological Sciences, 296 Spl. Independentei, Bucharest, Romania
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Cai Z, Zhang X, Qiu X, He X, Lu D. Determination of Diammonium Glycyrrhizinate and Its Antioxidant Activity Using a Novel Chemiluminescence System. ANAL LETT 2012. [DOI: 10.1080/00032719.2012.680055] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Castro-Puyana M, García-Cañas V, Simó C, Cifuentes A. Recent advances in the application of capillary electromigration methods for food analysis and Foodomics. Electrophoresis 2011; 33:147-67. [DOI: 10.1002/elps.201100385] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2011] [Revised: 08/10/2011] [Accepted: 08/10/2011] [Indexed: 12/17/2022]
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24
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Li YJ, Chen J, Li Y, Li Q, Zheng YF, Fu Y, Li P. Screening and characterization of natural antioxidants in four Glycyrrhiza species by liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry. J Chromatogr A 2011; 1218:8181-91. [PMID: 21968349 DOI: 10.1016/j.chroma.2011.09.030] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Revised: 09/06/2011] [Accepted: 09/10/2011] [Indexed: 01/25/2023]
Abstract
Licorice, derived from the dried roots and rhizomes of several species of genus Glycyrrhiza L. (Leguminosae family), has been traditionally used in herbal medicine for over 4000 years. In recent years, the interest in antioxidative constituents in licorice has greatly increased. In this work, a new method based on 1,1-diphenyl-2-picrylhydrazyl radical (DPPH) spiking test combined with HPLC coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (Q-TOF MS/MS) analysis was developed to screen and identify the antioxidants in licorice. The results of the method validation indicated that the developed method was reliable and repeatable. Compared with DPPH on-line method, the HPLC-Q-TOF MS/MS method combined with DPPH spiking test offered much higher sensitivity and resolution. Using this method, 35 radical scavengers were screened from four Glycyrrhiza species (G. inflata, G. glabra, G. pallidiflora and G. uralensis), and 21 of them were unambiguously or tentatively identified by HPLC-Q-TOF MS/MS. Among the 21 identified flavonoids, 10 compounds had been reported to possess antioxidative activities in the previous studies, and the radical scavenging activities of the other 11 compounds were reported for the first time. The effects of six purified flavonoids on DPPH radical and lipid peroxidation were evaluated for validation of the developed method. The results indicated that HPLC-Q-TOF MS/MS coupled with DPPH treatment is an efficient and powerful method to discover the potential antioxidative compounds from the complex natural product mixtures. In this study, the identified components with free radical scavenging activity, would help to explain the therapeutic benefit of licorice in the treatment of human disease associated with oxidative stress.
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Affiliation(s)
- Yan-Jing Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 210009, China
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25
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Cai Z, Zhang X, Lu DF, Gan JN. A novel chemiluminescence system for the determination of daidzein and its hydroxyl radical-scavenging capacity. LUMINESCENCE 2011; 27:256-61. [DOI: 10.1002/bio.1342] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2011] [Revised: 06/22/2011] [Accepted: 06/26/2011] [Indexed: 11/08/2022]
Affiliation(s)
- Zhuo Cai
- College of Chemistry and Chemical Engineering; Guangxi University; Nanning; People's Republic of China
| | - Xian Zhang
- College of Chemistry and Chemical Engineering; Guangxi University; Nanning; People's Republic of China
| | - Deng-Feng Lu
- College of Chemistry and Chemical Engineering; Guangxi University; Nanning; People's Republic of China
| | - Jing-Ni Gan
- College of Chemistry and Chemical Engineering; Guangxi University; Nanning; People's Republic of China
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26
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Stankevičius M, Akuņeca I, Jãkobsone I, Maruška A. Comparative analysis of radical scavenging and antioxidant activity of phenolic compounds present in everyday use spice plants by means of spectrophotometric and chromatographic methods. J Sep Sci 2011; 34:1261-7. [PMID: 21504067 DOI: 10.1002/jssc.201000915] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Revised: 02/22/2011] [Accepted: 03/08/2011] [Indexed: 11/07/2022]
Abstract
Comparative analysis of radical scavenging and antioxidant activities of phenolic compounds present in everyday use spice plants was carried out by means of spectrophotometric and chromatographic methods. Six spice plant samples, namely onion (Allium cepa), parsley (Petroselinum crispum) roots and leaves, celery (Apium graveolens) roots and leaves and leaves of dill (Anethum graveolens) were analyzed. Total amount of phenolic compounds and radical scavenging activity (RSA) was the highest in celery leaves and dill extracts and was the lowest in celery roots. Comparing commonly used spectrophotometric analysis of 2,2-diphenyl-1-picrylhydrazyl (DPPH) RSA of extracts with the results obtained using reversed-phase chromatographic separation with on-line post-column radical scavenging reaction detection, good correlation was obtained (R(2)=0.848). Studies using HPLC system with electrochemical detector showed that bioactive phytochemicals can be separated and antioxidant activities of individual compounds evaluated without the need of a complex HPLC system with reaction detector. The results obtained using electrochemical detection correlate with the RSA assayed using spectrophotometric method (R(2)=0.893).
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Affiliation(s)
- Mantas Stankevičius
- Department of Biochemistry and Biotechnologies, Faculty of Natural Sciences, Vytautas Magnus University, Lithuania
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27
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Helmja K, Vaher M, Kaljurand M. Evaluation of the free radical scavenging capability of wheat extracts by capillary electrophoresis and multivariate curve resolution. Electrophoresis 2011; 32:1094-100. [DOI: 10.1002/elps.201000576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Revised: 12/20/2010] [Accepted: 12/22/2010] [Indexed: 01/16/2023]
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Chen Q, Wang Y, Zeng H, Yuan Y, Zhou Y. Screening and Identification of Antioxidant Components in the Extract of Puerariae radix Using HPLC Coupled with MS. FOOD ANAL METHOD 2010. [DOI: 10.1007/s12161-010-9180-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Application and potential of capillary electroseparation methods to determine antioxidant phenolic compounds from plant food material. J Pharm Biomed Anal 2010; 53:1130-60. [PMID: 20719447 DOI: 10.1016/j.jpba.2010.07.028] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2010] [Revised: 07/09/2010] [Accepted: 07/18/2010] [Indexed: 12/17/2022]
Abstract
Antioxidants are one of the most common active ingredients of nutritionally functional foods which can play an important role in the prevention of oxidation and cellular damage inhibiting or delaying the oxidative processes. In recent years there has been an increased interest in the application of antioxidants to medical treatment as information is constantly gathered linking the development of human diseases to oxidative stress. Within antioxidants, phenolic molecules are an important category of compounds, commonly present in a wide variety of plant food materials. Their correct determination is pivotal nowadays and involves their extraction from the sample, analytical separation, identification, quantification and interpretation of the data. The aim of this review is to provide an overview about all the necessary steps of any analytical procedure to achieve the determination of phenolic compounds from plant matrices, paying particular attention to the application and potential of capillary electroseparation methods. Since it is quite complicated to establish a classification of plant food material, and to structure the current review, we will group the different matrices as follows: fruits, vegetables, herbs, spices and medicinal plants, beverages, vegetable oils, cereals, legumes and nuts and other matrices (including cocoa beans and bee products). At the end of the overview, we include two sections to explain the usefulness of the data about phenols provided by capillary electrophoresis and the newest trends.
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Könczöl Á, Kéry Á, Keserű GM, Balogh GT. LC Determination of Peroxynitrite Scavenging Activity of Phenols from Salvia spp. Chromatographia 2010. [DOI: 10.1365/s10337-010-1528-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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31
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Capillary electrophoresis frontal analysis for the study of flavonoid interactions with human serum albumin. Anal Bioanal Chem 2010; 397:2211-9. [DOI: 10.1007/s00216-010-3726-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2010] [Revised: 03/19/2010] [Accepted: 04/06/2010] [Indexed: 11/27/2022]
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32
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Maruška A, Stankevičius M, Stanius Ž. Coupling of capillary electrophoresis with reaction detection for the on-line evaluation of radical scavenging activity of analytes. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.proche.2009.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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33
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Asensio-Ramos M, Hernández-Borges J, Rocco A, Fanali S. Food analysis: A continuous challenge for miniaturized separation techniques. J Sep Sci 2009; 32:3764-800. [DOI: 10.1002/jssc.200900321] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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