Solid-state NMR study of 15N labelled polyaniline upon reaction with DPPH
Keywords: Polyaniline; DPPH; Solid-state NMR;
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GC-MS analysis of the essential oils, and the isolation of phenylpropanoid derivatives from the aerial parts of Pimpinella aurea
Keywords: Pimpinella aurea; Umbelliferae; Apiaceae; Phenylpropanoid; Erythro-1â²-(4-methoxyphenyl)-propan-1â²,2â²-diol; Erythro-1â²-[4-(sec-butyl)-phenyl]-propan-1â²,2â²-diol; GC-MS; DPPH; Antioxidant; Chemotaxonomy;
Americanin, a bioactive dibenzylbutyrolactone lignan, from the seeds of Centaurea americana
Keywords: Centaurea americana; Asteraceae; Compositae; Lignan; Phytoecdysteroid; DPPH; Brine shrimp lethality assay; Makisterone A; Antioxidant; Chemotaxonomy;
Antioxidant activity of prenylated hydroquinone and benzoic acid derivatives from Piper crassinervium Kunth
Keywords: Piper crassinervium; Piperaceae; Prenylated hydroquinones; Prenylated benzoic acids; Antioxidants; Lipoperoxidation; DPPH; Chemiluminscence;
Antioxidant and free radical-scavenging activities of wheat germ protein hydrolysates (WGPH) prepared with alcalase
Keywords: Wheat germ protein hydrolysates; Antioxidant activity; Free radical-scavenging activity; DPPH; Alcalase
Evaluation of antioxidant property of extract and fractions obtained from a red alga, Polysiphonia urceolata
Keywords: Polysiphonia urceolata; Antioxidant; DPPH; β-Carotene–linoleate; Total phenolic content; Reducing power
Use of an electrochemical method to evaluate the antioxidant activity of herb extracts from the Labiatae family
Keywords: Herb extracts; Antioxidant activity; FI; Electrochemical method; Voltammetric experiment; DPPH
Cytotoxic, antioxidant and antibacterial activities of Varthemia iphionoides Boiss. extracts
Keywords: Varthemia iphionoides; Compositae; DPPH; 3-Oxocostusic acid; Human leukemia (HL-60) cells; Antioxidant
The contribution of flavonoid C-ring on the DPPH free radical scavenging efficiency. A kinetic approach for the 3′,4′-hydroxy substituted members
Keywords: DPPH; Free radical scavenging; Flavonoids; Antioxidant
Antioxidant capacity and phenolic profile of table olives from the Greek market
Keywords: Table olives; Polyphenols; DPPH; Antioxidant capacity; Radical scavenger
Analysis of Indian mint (Mentha spicata) for essential, trace and toxic elements and its antioxidant behaviour
Keywords: Mentha spicata; Reference materials; INAA; AAS; DPPH; Antioxidant behaviour
Total phenolic contents and antioxidant properties of commonly consumed vegetables grown in Colorado
Keywords: Oxygen radical absorbance capacity; O2−; Antioxidant; Chelating; ABTS+; DPPH; Total phenolic content; Vegetable
Evaluation of the antioxidant activity of soybean extract by different in vitro methods and investigation of this activity after its incorporation in topical formulations
Keywords: Soybean extract; Antioxidant; Polyphenols; Topical formulation; DPPH; Deoxyribose; Lipid peroxidation
Screening of 70 medicinal plant extracts for antioxidant capacity and total phenols
Keywords: Medicinal plants; Infusions; Melissa officinalis L.; FRAP; DPPH; ABTS
Antioxidant constituents in feverfew (Tanacetum parthenium) extract and their chromatographic quantification
Keywords: Parthenolide; Feverfew; Tanacetum parthenium; Flavonoid; Antioxidant activity; DPPH; Metal-chelating; HPLC; GC–MS
Automatic method for determination of total antioxidant capacity using 2,2-diphenyl-1-picrylhydrazyl assay
Keywords: Total antioxidant capacity; DPPH; Multi-syringe flow injection; Beverages
Maniçoba, a quercetin-rich Amazonian dish
Keywords: Maniçoba; Quercetin; Amazonian dish; Antioxidant activity; Metabolites; DPPH; 1; 1-diphenyl-2-p-picrylhydrazyl; RLCC; rotation locular counter-current chromatography; DMSO; dimethylsulfoxide; EtOH; ethanol; MeOH; methanol; EtOAc; ethyl acetate; TBA; thio
Effect of solvent and certain food constituents on different antioxidant capacity assays
Keywords: Antioxidant capacity; Solvent effect; ABTS; FRAP; DPPH; ORAC
Antioxidative properties of tronchuda cabbage (Brassica oleracea L. var. costata DC) external leaves against DPPH, superoxide radical, hydroxyl radical and hypochlorous acid
Keywords: Tronchuda cabbage; Brassica oleracea L. var. costata DC; DPPH; Superoxide radical; Hydroxyl radical; Hypochlorous acid; Phenolics; Organic acids
Antioxidant activities of various extracts and fractions of Sorbus domestica fruits at different maturity stages
Keywords: DPPH, 1,1-diphenyl-2-picryl-hydrazyl; CL, chemiluminescence; AE, antiradical efficiency; GAE, gallic acid equivalents; TPC, total phenolic content; SD, standard deviationSorbus domestica; Radical scavenging activity; DPPH; Chemiluminescence; Total phenoli
Influence of enological practices on the antioxidant activity of wines
Keywords: Antioxidant activity; ORAC; ABTS; DPPH; Wines; Maceration; Filtration; Clarification; Pressing
Antioxidant activity of hot water extract from the fruit of the Doum palm, Hyphaene thebaica
Keywords: Hyphaene thebaica; Doum; Antioxidant activity; Reactive oxygen species; DPPH; Hydroxyl radical; Superoxide; Reducing power
Structure-radical scavenging activity relationships of flavonoids
Keywords: SAR; Flavonoids; Free radical; DPPH; Heat of formation; Spin distribution;
Antioxidant activity of Siamese neem tree (VP1209)
Keywords: Azadirachta indica var. siamensis; Siamese neem tree; Neem; Antioxidant activity; DPPH; MDA;
In vitro antioxidant activities of the methanol extracts of five Allium species from Turkey
Keywords: Allium; Antioxidant activity; DPPH; β-Carotene/linoleic acid test;
Comparative study of catechin compositions in five Japanese persimmons (Diospyros kaki)
Keywords: Catechin; Antioxidant; DPPH; Japanese persimmon; Diospyros kaki;
Antioxidant activity of fresh and dry herbs of some Lamiaceae species
Keywords: AA; l-ascorbic acid; GA; gallic acid; LA; linoleic acid; ORAC; oxygen radical absorbing capacity; DPPH; 2,2-diphenyl-1-picrylhydrazyl; TAA; total antioxidant activity; RSA; radical scavenging ability; f.m.; fresh matter; Ascorbic acid; Antioxidant activit
Peroxidase-based biosensor as a tool for a fast evaluation of antioxidant capacity of tea
Keywords: Antioxidant activity; Polyphenols; Biosensor; DPPH;
Effect of vitamin E and polyphenols on ochratoxin A-induced cytotoxicity in liver (HepG2) cells
Keywords: Antioxidants; Flavonoids; Glutathione; Ochratoxin A; Oxidative stress; α-Tocopherol; CAT; catechin; DAI; daidzein; DPPH; diphenylpicrylhydrazyl; EC; epicatechin; EGCG; epigallocatechin gallate; EQU; equol; FRAP; ferric reducing antioxidant capacity of pl
In vitro antioxidant activities of the methanol extracts of four Helichrysum species from Turkey
Keywords: Helichrysum; Antioxidant activity; DPPH; β-Carotene/linoleic acid test;
Evaluation of antioxidant activity of Brazilian plants
Keywords: Antioxidant activity; Brazilian Medicinal plants; DPPH; Saccharomyces cerevisiae;
Free radical scavenging and hepatoprotective activity of jigrine against galactosamine induced hepatopathy in rats
Keywords: Jigrine; Unani medicine; Galactosamine; Hepatopathy; Silymarin; DPPH;
Antioxidant activity of Aporosa lindleyana root
Keywords: Aporosa lindleyana; Lipid peroxidation; DPPH; Nitric oxide;
The effect of cooking methods on total phenolics and antioxidant activity of selected green vegetables
Keywords: Green vegetables; Phenolics; Antioxidant activity; DPPH;
Antioxidant activity of water-soluble Maillard reaction products
Keywords: AAPH; 2,2â²-azobis(2-amidinopropane) dihydrochloride; DPPH; 2,2-diphenyl-1-picrylhydrazyl; Fru; fructose; Glu; glucose; Gly; glycine; His; histidine; HMF; 5-hydroxymethyl-2-furaldehyde; Lac; lactose; Lys; lysine; MRP; Maillard reaction products; ORACPE;
Antioxidant action of eugenol compounds: role of metal ion in the inhibition of lipid peroxidation
Keywords: LDL; low density lipoprotein; DPPH; 1,1â²-diphenyl-2-picrylhydrazyl; Eugenol; Isoeugenol; Lipid peroxidation; Antioxidant;
Antioxidant activity of chlorophylls and their derivatives
Keywords: Antioxidant activity; Chlorophyll derivatives; β-carotene bleaching method; DPPH;
The protective effects of Achillea L. species native in Turkey against H2O2-induced oxidative damage in human erythrocytes and leucocytes
Keywords: BSA; bovine serum albumin; CAT; catalase; DPPH; 2,2-diphenyl-1-picrylhydrazyl; DTNB; 5,5â²-dithio-bis-2-nitrobenzoic acid; GSH; glutathione; GSSG; oxidised glutathione; GPx; glutathione peroxidase; GR; glutathione reductase; Hb; hemoglobin; LPO; lipid pe
Preparation of Au/TiO2 nanocomposites and their catalytic activity for DPPH radical scavenging reaction
Keywords: Gold; TiO2; DPPH; Dimethylamineborane; Nanocomposites; UV photolysis; Catalysis; Radical scavenging reaction;
Inhibitory effect of some selected nutraceutic herbs on LDL glycation induced by glucose and glyoxal
Keywords: Psidium guajava L.; Toona sinensis Roem.; Momordica charantia L.; Graptopetalum paragugayene E. Walther; LDL; Glycation; Glucose; Glyoxal; AGEs; advanced glycation end products; AG; aminoguanidine; BHT; butylated hydroxytoluene; BSA; bovine serum albumin;
Determination of the total phenolic, flavonoid and proline contents in Burkina Fasan honey, as well as their radical scavenging activity
Keywords: Honey; Burkina Faso; Antioxidants; Radical scavenging activity; DPPH; Phenolics; Flavonoids; Proline;
Antioxidant effect of Inonotus obliquus
Keywords: AAPH; 2,2â²-azobis(2-amidinopropane)dihydrochloride; DCF; 2,7-dichlorofluorescin-diacetate; DPBS; Dulbecco's phosphate-buffered saline; DPPH; 1,1-diphenyl-2-picrylhydrazyl; MTT; 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide; NBT; nitroblu
Influence of processing variables on some characteristics of nocino liqueur
Keywords: Antioxidant; DPPH; Nocino liqueur; Phenols; Production process; Walnut;
Comparison of antioxidant capacities of extracts from five cultivars of Chinese jujube
Keywords: Antioxidant capacity; Chinese jujube; DPPH; Extracts; Reducing power; Total phenolic contents
Inhibitory effects of wheat bran extracts on human LDL oxidation and free radicals
Keywords: Wheat; Bran; Radical scavenging; Antioxidant; Ldl; Radical anion; DPPH; Peroxide anion; Oxygen radical;
Characterization and antioxidant activity of nocino liqueur
Keywords: antioxidant; DPPH; Nocino liqueur; Phenols; Walnut;
Bixin and α-cyclodextrin inclusion complex and stability tests
Keywords: Bixin; Urucum; Cyclodextrin; Inclusion complexes; DPPH; Ozone;
Protective effect of Aquilegia vulgaris (L.) on APAP-induced oxidative stress in rats
Keywords: ADP; adenosine diphosphate; APAP; N-acetyl-p-aminophenol; CAT; catalase; CDNB; 1-chloro-2,4-dinitrobenzene; DPPH; diphenyl-p-picrylhydrazyl; GPx; glutathione peroxidase; GSH; reduced glutathione; GSSG; oxidized glutathione; GST; glutathione S-transferase;
The genus Ardisia: a novel source of health-promoting compounds and phytopharmaceuticals
Keywords: 1-NP; 1-nitropyrene; BIR3; baculovirus IAP repeat third domain; cAMP; cyclic adenosine monophosphate; DPPH; 1,1-diphenyl-2-picrylhydrazyl; EGCG; (â)-epigallocatechin gallate; HIV; human immunodeficiency virus; MS/MS; mass spectrometry/mass spectrometer;
Ultrasound-assisted extraction methodology as a tool to improve the antioxidant properties of herbal drug Xiao-chia-hu-tang
Keywords: ABTS; 2,2â²-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid); DPPH; 1,1-diphenyl-2-picryl hydrazyl; EDTA; ethylenediaminetetraacetic acid; GA; glycyrrhizic acid; IC50; 50% inhibition concentration; MDA; malondialdehyde; PHC; potassium hexacyanoferrate;