lc-ms-ms analysis and the antioxidant activity of

Antioxidant response of cucumber (Cucumis sativus) exposed

We describe a protocol for extraction and analysis of plant metabolites specifically 13 secondary metabolites (antioxidants) using liquid chromatography coupled to triple quadrupole mass spectrometry (LC-MS/MS) with high linearity (R2 0 99) and reproducibility (0 23–6 23 R%) with low limits of detection (0 001 ng/mL) and quantification

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ResearchArticle LC-MS/MS Analysis and Hepatoprotective Activity of Artichoke (Cynara scolymus L ) Leaves Extract against High FatDiet-Induced Obesity in Rats MaryemBenSalem 1 KamiliaKsouda 1 RaouiaDhouibi 1 SlimCharfi 2 MounaTurki 3 SerriaHammami 1 FatmaAyedi 3 ZouheirSahnoun 1 KhaledMounirZeghal 1 andHanenAffes 1

Targeted phenolic profiling of Sauvignon blanc and Shiraz

Jun 06 2019The phenolic compounds play an important role in production of quality grapes and wines The current investigation focused on optimization of an extraction method for targeted analysis of 33 phenolic compounds in grapes by liquid chromatography tandem mass spectrometry (LC–MS/MS) The optimized method was successfully used for phenolic profiling of two wine grape varieties Sauvignon

Identification of Phenolic Compounds by LC/MS

Antioxidant activity was assayed by the in vitro DPPH ABTS and FRAP assays The highest antioxidant activity was observed for the ethyl acetate fraction which also has showed the highest levels of proanthocyanidins in the vanillin-HCl assay which may be related to its greater inhibitory activity of mushroom tyrosinase Analysis by HPLC-MS/MS

GC/MS analysis antioxidant and antibacterial activities

GCMS analysis of essential oil showed presence of limonene (90%) Valenence (2 18%) Eicosene (2 01%) - Tetrahydrolinalool (2 02%) α-Cadinene (1 425%) Nonanol (1 31%) and Dodecanol (1 06%) as the major constituents The Antioxidant activity of essential oil was determined by using DPPH free radical scavenging and reducing power methods The

(PDF) GC/MS analysis and in vitro antioxidant activity of

Chemical composition of the essential oil antioxidant activity (DPPH and β-carotene/linoleic acid assays) and total phenolic content (Folin–Ciocalteu assay) of aerial parts of Thymus caramanicus were determined The highest radical-scavenging

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The identification and quantification of phenolic compounds of Stachys lavandulifolia Vahl var brachydon Boiss by LC-MS/MS (Liquid Chromatography- tandem Mass Spectrometry) technique is the main purpose of the current study The high concentrations of quinic acid (253412 ppb) and chlorogenic acid (188292 ppb) were detected by LC-MS/MS

ANTIOXIDANT AND CYTOTOXIC PROPERTIES OF SALVIA

showed 80 43 % Radical Scavenging Activity against DPPH radical Total flavonoid content was found as one third of total phenolic content Presence of important phenolic acids and flavonoids such as caffeic acid luteolin coumaric acid are validated with LC-MS/MS analysis Cytotoxicity of

ANTIBACTERIAL ANTIOXIDANT ACTIVITY AND GC

17 major and 26 minor compounds were identified in methanol and aqueous extracts of Eupatorium odoratum by GC –MS analysis showing significant antibacterial antioxidant and other prophylactic activities Antibacterial properties of aqueous and

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LC-MS/MS analysis of the new antioxidant identified from a soft-body extract of Crassostrea gigas A cerebral oxidation stress makes them induce insomnia and etc So it is desirable to take antioxidants with high penetration through blood-brain barrier (BBB) for the prevention of insomnia

Antioxidants

The identification and quantification of the phenolic contents of methanolic extracts of three Salvia L species namely S brachyantha (Bordz ) Pobed S aethiopis L and S microstegia Boiss and Bal were evaluated using reverse phase high performance liquid chromatography UV adsorption and mass spectrometry (RP-HPLC/MS) In order to determine the antioxidant capacity of these species

Anticholinergic antidiabetic and antioxidant activities

Anticholinergic antidiabetic and antioxidant activities of cinnamon (cinnamomum verum) bark extracts: polyphenol contents analysis by LC-MS/MS Ilhami Gulcin a Ruya Kayaa b Ahmet C Gorenc d Hulya Akincioglue Meryem Topalf Zeynebe Bingol a Kader Cetin akmak Sevim B Ozturk Sarikayag Lokman Durmazh and Saleh Alwaseli

Extraction Process Component Analysis and In Vitro

For LC-DAD analysis the same chromatographic condi-tions described for LC-MS/MS analysis were employed with the exception of an injection volume of 20μl 2 7 Determination of Chemical-Based Antioxidant Activities 2 7 1 ABTS Radical Scavenging Activity Assay The ABTS radical scavenging activity of TFE from A theophrasti leaves

Xanthones Analysis and Antioxidant Activity Analysis

To evaluate antioxidant activity using 2 2-diphenyl-1-picrylhydrazyl (DPPH) was used as free radical scavenger method Results: The LC-MS/MS analysis showed that the highest concentrations are filled by mangosteen rind with maturity level 6 Moreover each maturity levels of mangosteen rind extract has different g value compared to DPPH free

Effect of Harvest Season on Polyphenol Profile and

The antioxidant activity of the polyphenol mixtures from each sample was evaluated in terms of 1 1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity LC-MS/MS analysis LC-MS/MS analysis was conducted under the conditions described in a previous study (Kim 2016 the LC-chromatograms obtained for each sample for harvesting time

Antioxidant and Lipase Inhibitory Activities and Essential

The antioxidant activity of various solvent extracts from 2 5 LC-MS/MS analysis LC-MS/MS analysis of the PP ethanol extract was carried out using an Agilent 1100 LC system consisting of degasser binary pump auto sampler and column heater The

Evaluation of anticancer antioxidant activity and

The antioxidant activity of the extract was investigated using total phenolics flavonoids ABTS and CUPRAC methods Phenolic component analysis of the plant extract was performed by LC-MS/MS The anti-cancer property of AR extract was investigated on human colon (DLD-1) endometrium (ECC-1) cancer cells and embryonic kidney (HEK-293) cells

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LC-MS/MS analysis of the new antioxidant identi˜ed from a soft-body extract of Crassostrea gigas Figure 4 Q1 scan data of E6 standard First MRM method was optimized using standard sample of E6 A molecule ion [M-H]- was detected at m/z 169 with FIA electro spray ionization negative mode

Antioxidant Activity of Flaxseed (Linum usitatissimum L

compounds exhibit their antioxidant activity due to their redox property According to the results obtained from LC-MS/MS analysis the main phenolic acids in AEF and EEF were found to be p-hydroxybenzoic acid ellagic acid p-coumaric acid ferulic acid and ascorbic acid respectively

GC/MS analysis antioxidant and antibacterial activities

GCMS analysis of essential oil showed presence of limonene (90%) Valenence (2 18%) Eicosene (2 01%) - Tetrahydrolinalool (2 02%) α-Cadinene (1 425%) Nonanol (1 31%) and Dodecanol (1 06%) as the major constituents The Antioxidant activity of essential oil was determined by using DPPH free radical scavenging and reducing power methods The

LC

The antioxidant compound rich EEA from leaves of Cynara was identified by LC-MS/MS analysis which composed an Agilent 1100 LC system (Agilent Technologies Santa Clara CA) containing degasser binary pump autosampler and column heater The column outlet was coupled to an Agilent MSD Ion Trap XCT mass spectrometer (Agilent Technologies Santa

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LC-MS/MS Analysis and Biological Activit LC-MS/MS Analysis and Biological Activities of Hypericum androsaemum L Leaves and Fruits Extracts Atıf İin Kopyala Yazıcı Bektaş N Eroğlu zkan E Boğa M 6th World Congress on Medicinal and Aromatic Plants Gazimagusa Kıbrıs (Kktc) 13 -

ANTICANCER ANTIOXIDANT ACTIVITY AND GC

anticancer antioxidant activity and gc-ms analysis of selected micro algal members of chlorophyceae Balaji 1 D Thamilvanan 2 S Chidambara Vinayagam 3 and B S Balakumar *2 Department of Chemistry 1 Department of Botany 2 Ramakrishna Mission Vivekananda College (Autonomous) Chennai - 600004 Tamil Nadu India