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You searched for: Author anita Remove constraint Author: anita Journal name Natural product research Remove constraint Journal name: Natural product research Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Phenolic composition, antioxidant and antinociceptive activities of Syringa vulgaris L. bark and leaf extracts

Author:
Anita Tóth,   et al.   ; Erzsébet Varga; Csenge Barabás; Imre Boldizsár; Béla Noszál; Gergő Tóth;     Show all 6 Authors
Source:
Natural product research 2019 v.33 no.11 pp. 1664-1669
ISSN:
1478-6427
Subject:
Syringa vulgaris; analgesic effect; bark; leaf extracts; leaves; lignans; metabolites; mice; molecular weight; phenols; phenylpropanoids; quantitative analysis; rutin; secoiridoids; tandem mass spectrometry
Abstract:
... Metabolite profile, antioxidant and antinociceptive activities of Syringa vulgaris bark and leaf methanolic extracts were investigated. By means of HPLC-DAD-ESI-TOF and HPLC-DAD-ESI-MS/MS, a total of 33 phenolics were identified, including 15 secoiridoids, 6 phenylpropanoids, 3 flavonoids, 3 lignans and 6 low molecular weight phenols. Validated quantitative analysis show that syringin (2.52%) and ...
DOI:
10.1080/14786419.2018.1425855

2. Contribution of individual flavonoids in Lysimachia species to the antioxidant capacity based on HPLC-DPPH assay

Author:
Anita Toth,   et al.   ; Eszter Riethmuller; Krisztina Vegh; Agnes Alberti; Szabolcs Beni; Agnes Kery;     Show all 6 Authors
Source:
Natural product research 2018 v.32 no.17 pp. 2058-2061
ISSN:
1478-6427
Subject:
2,2-diphenyl-1-picrylhydrazyl; Lysimachia; antioxidant activity; high performance liquid chromatography; hydrolysis; kaempferol; myricetin; quercetin
Abstract:
... Quantitative phytochemical characterisation of the chief flavonoid aglycones in the hydrolysed Lysimachia extracts revealed the dominance of kaempferol, quercetin and myricetin in L. vulgaris, L. nummularia, L. punctata, L. christinae, L. ciliata and L. clethroides, respectively. Due to the significant radical scavenging capacity of the samples, the contribution of the individual aglycones to the ...
DOI:
10.1080/14786419.2017.1359176

3. A new ultra-high pressure liquid chromatography method for the determination of antioxidant flavonol aglycones in six Lysimachia species

Author:
Anita Tóth,   et al.   ; Krisztina Végh; Ágnes Alberti; Szabolcs Béni; Ágnes Kéry;     Show all 5 Authors
Source:
Natural product research 2016 v.30 no.20 pp. 2372-2377
ISSN:
1478-6427
Subject:
2,2-diphenyl-1-picrylhydrazyl; Lysimachia clethroides; Lysimachia nummularia; acid hydrolysis; antioxidant activity; decolorization; free radical scavengers; kaempferol; liquid chromatography; methanol; myricetin; quantitative analysis; quercetin
Abstract:
... UPLC-DAD method was developed and validated for the quantitative determination of free flavonol aglycones (kaempferol, quercetin and myricetin) after acidic hydrolysis in six Lysimachia species. Quantitative analyses showed that the amounts of various flavonol aglycones were significantly different in Lysimachia vulgaris , Lysimachia nummularia , Lysimachia punctata , Lysimachia christinae , Lysim ...
DOI:
10.1080/14786419.2016.1174233

4. Antimicrobial and antioxidant phytochemicals in leaf extracts of Bergenia ligulata: a Himalayan herb of medicinal value

Author:
Anita Pandey,   et al.   ; Vasudha Agnihotri; Priyanka Sati; Arvind Jantwal;     Show all 4 Authors
Source:
Natural product research 2015 v.29 no.11 pp. 1074-1077
ISSN:
1478-6427
Subject:
Bergenia; anti-infective properties; antioxidant activity; antioxidants; ethyl acetate; flavonoids; leaf extracts; maceration; medicinal plants; metabolites; methanol; microorganisms; minimum inhibitory concentration; phytopharmaceuticals; solvents
Abstract:
... Phenolic and flavonoid contents in leaf extracts of Bergenia ligulata have been analysed for their contribution in antimicrobial and antioxidant activities. The extracts were prepared in three solvents (separately) following maceration and soxhelt methods. The antimicrobial activity was tested using disc diffusion assay against a range of microorganisms along with the determination of minimum inhi ...
DOI:
10.1080/14786419.2014.980244