3,4-dihydroxybenzoic acid

benzoic acid, 3,4-dihydroxy- 4- carboxy-1,2-dihydroxybenzene 3,4- dihydrobenzoic acid 3,4- dihydroxy benzoic acid 3,4- dihydroxy-benzoic acid 3,4- dihydroxybenzoicacid protocatechuic acid protocatehuic acid b- resorcylate PubMed: Characterization of polyphenol oxidase activity in Ataulfo mango. PubMed: Copigmentation of malvidin-3-O-glucoside with five hydroxybenzoic acids in red wine model solutions: Experimental and theoretical investigations. PubMed: Effects of postharvest curing treatment on flesh colour and phenolic metabolism in fresh-cut potato products. PubMed: Phytochemical analysis of ten varieties of pawpaw (Asimina triloba [L.] Dunal) fruit pulp. PubMed: Flavonoids and phenolic acids from cranberry juice are bioavailable and bioactive in healthy older adults. PubMed: Chemical and sensory characterisation of Sangiovese red wines: comparison between biodynamic and organic management. PubMed: Efficient determination of protocatechuic Acid in fruit juices by selective and rapid magnetic molecular imprinted solid phase extraction coupled with HPLC. PubMed: Hibiscus sabdariffa L. - a phytochemical and pharmacological review. PubMed: Hydroxybenzoic acid isomers and the cardiovascular system. PubMed: Analysis of different European hazelnut (Corylus avellana L.) cultivars: authentication, phenotypic features, and phenolic profiles. PubMed: Phenolic compounds in fresh and dried figs from Cilento (Italy), by considering breba crop and full crop, in comparison to Turkish and Greek dried figs. PubMed: Ionic liquid-based one-step micellar extraction of multiclass polar compounds from hawthorn fruits by ultrahigh-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry. PubMed: Phenolic acids identified in sorghum distillery residue demonstrated antioxidative and anti-cold-stress properties in cultured tilapia, Oreochromis mossambicus. PubMed: Lipoxygenase inhibitory activity of alkyl protocatechuates. PubMed: In vitro anti-osteoporosis properties of diverse Korean Drynariae rhizoma phenolic extracts. PubMed: Urinary metabolite profiling identifies novel colonic metabolites and conjugates of phenolics in healthy volunteers. PubMed: The interaction of phenolic acids with Fe(III) in the presence of citrate as studied by isothermal titration calorimetry. PubMed: Some Anthocyanins Could Be Efficiently Absorbed across the Gastrointestinal Mucosa: Extensive Presystemic Metabolism Reduces Apparent Bioavailability. PubMed: Evaluation of total phenolic compounds and insecticidal and antioxidant activities of tomato hairy root extract. PubMed: High-resolution mass spectrometry to evaluate the influence of cross-breeding segregating populations on the phenolic profile of virgin olive oils. PubMed: Analysis of interaction of phenolic compounds with the cholecystokinin signaling pathway to explain effects on reducing food intake. PubMed: Degradation of cyanidin-3-rutinoside and formation of protocatechuic acid methyl ester in methanol solution by gamma irradiation. PubMed: Evolution of polyphenols and organic acids during the fermentation of apple cider. PubMed: Protocatechuic acid inhibits human dendritic cell functional activation: role of PPARγ up-modulation. PubMed: Quantification of individual phenolic compounds' contribution to antioxidant capacity in apple: a novel analytical tool based on liquid chromatography with diode array, electrochemical, and charged aerosol detection. PubMed: Nonanthocyanin secondary metabolites of black raspberry (Rubus occidentalis L.) fruits: identification by HPLC-DAD, NMR, HPLC-ESI-MS, and ESI-MS/MS analyses. PubMed: Changes in Chokeberry ( Aronia melanocarpa L.) Polyphenols during Juice Processing and Storage. PubMed: Polyphenols in Barringtonia racemosa and their protection against oxidation of LDL, serum and haemoglobin. PubMed: Bioactive compounds and antioxidant activity of fresh and processed white cauliflower. PubMed: Phenolic acids, anthocyanins, and antioxidant capacity in rice (Oryza sativa L.) grains at four stages of development after flowering. PubMed: Phenolic content of strawberry spreads during processing and storage. PubMed: Stability and transformation of major flavonols in onion (Allium cepa) solid wastes. PubMed: Inhibitory effects of low molecular weight polyphenolics from Inonotus obliquus on human DNA topoisomerase activity and cancer cell proliferation. PubMed: Protocatechuic acid extends lifespan and increases stress resistance in Caenorhabditis elegans. PubMed: Release and degradation of anthocyanins and phenolics from blueberry pomace during thermal acid hydrolysis and dry heating. PubMed: Antibacterial activities of almond skins on cagA-positive and-negative clinical isolates of Helicobacter pylori. PubMed: DPPH assay of vegetable oils and model antioxidants in protic and aprotic solvents. PubMed: Juniperus oxycedrus L. subsp. oxycedrus and Juniperus oxycedrus L. subsp. macrocarpa (Sibth. & Sm.) Ball. "berries" from Turkey: comparative evaluation of phenolic profile, antioxidant, cytotoxic and antimicrobial activities. PubMed: Metabolic profiling of phenolic acids and oxidative stress markers after consumption of Lonicera caerulea L. fruit. PubMed: Assay of phenolic compounds from four species of ber (Ziziphus mauritiana L.) fruits: comparison of three base hydrolysis procedure for quantification of total phenolic acids. PubMed: Phenolic acid intake, delivered via moderate champagne wine consumption, improves spatial working memory via the modulation of hippocampal and cortical protein expression/activation. PubMed: Sonochemical effects on free phenolic acids under ultrasound treatment in a model system. PubMed: Antibacterial activity of Veronica montana L. extract and of protocatechuic acid incorporated in a food system. PubMed: Methyl syringate, a low-molecular-weight phenolic ester, as an activator of the chemosensory ion channel TRPA1. PubMed: Biochemical characterization of radical scavenging polyphenols from Nyctanthes arbortristis. PubMed: Bioaccessibility of pistachio polyphenols, xanthophylls, and tocopherols during simulated human digestion. PubMed: Inhibitory activity of Aralia continentalis roots on protein tyrosine phosphatase 1B and rat lens aldose reductase. PubMed: Antioxidant and quinone reductase-inducing constituents of black chokeberry (Aronia melanocarpa) fruits. PubMed: Antioxidant interactions between major phenolic compounds found in 'Ataulfo' mango pulp: chlorogenic, gallic, protocatechuic and vanillic acids. PubMed: In vitro and in vivo antioxidant activity of ethanolic extract of white button mushroom (Agaricus bisporus). PubMed: Textural characteristic, antioxidant activity, sugar, organic acid, and phenolic profiles of 10 promising jujube (Ziziphus jujuba Mill.) selections. PubMed: Development and validation of an HPLC-method for determination of free and bound phenolic acids in cereals after solid-phase extraction. PubMed: Supercritical fluid extraction of phenolic compounds and antioxidants from grape (Vitis labrusca B.) seeds. PubMed: Effect of drying of jujubes ( Ziziphus jujuba Mill.) on the contents of sugars, organic acids, α-tocopherol, β-carotene, and phenolic compounds. PubMed: Growth-inhibitory effects of pigmented rice bran extracts and three red bran fractions against human cancer cells: relationships with composition and antioxidative activities. PubMed: Potential for food-drug interactions by dietary phenolic acids on human organic anion transporters 1 (SLC22A6), 3 (SLC22A8), and 4 (SLC22A11). PubMed: Antioxidant capacities, phenolic compounds and polysaccharide contents of 49 edible macro-fungi. PubMed: Profile and distribution of soluble and insoluble phenolics in Chinese rapeseed (Brassica napus). PubMed: Anti-glycative and anti-inflammatory effects of protocatechuic acid in brain of mice treated by D-galactose. PubMed: Chemical composition of currant seed extracts and their protective effect on human lymphocytes DNA. PubMed: Polyphenol compounds and anti-inflammatory activities of Korean black raspberry ( Rubus coreanus Miquel) wines produced from juice supplemented with pulp and seed. PubMed: Protocatechuic acid and human disease prevention: biological activities and molecular mechanisms. PubMed: Color of whole-wheat foods prepared from a bright-white hard winter wheat and the phenolic acids in its coarse bran. PubMed: Perturbation of the EphA2-EphrinA1 system in human prostate cancer cells by colonic (poly)phenol catabolites. PubMed: Antioxidant efficacy of extracts produced from pickled and dried mustard in rapeseed and peanut oils. PubMed: Monoamine Oxidase and Dopamine β-Hydroxylase Inhibitors from the Fruits of Gardenia jasminoides. PubMed: The profile in polyphenols and volatile compounds in alcoholic beverages from different cultivars of mulberry. PubMed: Survey of antioxidant capacity and phenolic composition of blueberry, blackberry, and strawberry in Nanjing. PubMed: Bioactive polyphenols in leaves, stems, and berries of Saskatoon (Amelanchier alnifolia Nutt.) cultivars. PubMed: Potential anti-inflammatory, anti-adhesive, anti/estrogenic, and angiotensin-converting enzyme inhibitory activities of anthocyanins and their gut metabolites. PubMed: Anti-inflammatory activities of aqueous extract of Mesona procumbens in experimental mice. PubMed: Screening of the polyphenol content of tomato-based products through accurate-mass spectrometry (HPLC-ESI-QTOF). PubMed: Variation of polyphenols and betaines in aerial parts of young, field-grown Amaranthus genotypes. PubMed: Simultaneous determination of phenolic compounds and saponins in quinoa (Chenopodium quinoa Willd) by a liquid chromatography-diode array detection-electrospray ionization-time-of-flight mass spectrometry methodology. PubMed: Ethnobotanical survey, chemical composition, and antioxidant capacity of methanolic extract of the root bark of Annona cuneata Oliv. PubMed: Identification and quantification of phenolic compounds in bambangan (Mangifera pajang Kort.) peels and their free radical scavenging activity. PubMed: Cyanidin-3-O-β-glucoside and protocatechuic acid exert insulin-like effects by upregulating PPARγ activity in human omental adipocytes. PubMed: Phenolic tyrosinase inhibitors from the stems of Cudrania cochinchinensis. PubMed: Anthocyanins remain stable during commercial blackcurrant juice processing. PubMed: Structure and function of the oxidation products of polyphenols and identification of potent lipoxygenase inhibitors from Fe-catalyzed oxidation of resveratrol. PubMed: Further investigation into maple syrup yields 3 new lignans, a new phenylpropanoid, and 26 other phytochemicals. PubMed: Effect of fermentation time on antioxidative activities of Ganoderma lucidum broth using leguminous plants as part of the liquid fermentation medium. PubMed: Anthocyanin-rich blackberry extract suppresses the DNA-damaging properties of topoisomerase I and II poisons in colon carcinoma cells. PubMed: Antiglycative effects of protocatechuic acid in the kidneys of diabetic mice. PubMed: Antioxidant activities, total phenolics and HPLC analyses of the phenolic compounds of extracts from common Mediterranean plants. PubMed: Polyphenols of pseudostem of different banana cultivars and their antioxidant activities. PubMed: Anthocyanin-derived phenolic acids form glucuronides following simulated gastrointestinal digestion and microsomal glucuronidation. PubMed: Use of multivariate statistical techniques to optimize the simultaneous separation of 13 phenolic compounds from extra-virgin olive oil by capillary electrophoresis. PubMed: Intestinal transit and systemic metabolism of apple polyphenols. PubMed: Antigenotoxicity, cytotoxicity, and apoptosis induction by apigenin, bisabolol, and protocatechuic acid. PubMed: Protocatechuic acid, a metabolite of anthocyanins, inhibits monocyte adhesion and reduces atherosclerosis in apolipoprotein E-deficient mice. PubMed: β-cyclodextrin and caffeine complexes with natural polyphenols from olive and olive oils: NMR, thermodynamic, and molecular modeling studies. PubMed: Colonic metabolites of berry polyphenols: the missing link to biological activity? PubMed: Effects of grape pomace antioxidant extract on oxidative stress and inflammation in diet induced obese mice. PubMed: Computational analysis for hepatic safety signals of constituents present in botanical extracts widely used by women in the United States for treatment of menopausal symptoms. PubMed: Varietal influences on antihyperglycemia properties of freshly harvested apples using in vitro assay models. PubMed: Identification of a new natural vasorelaxatant compound, (+)-osbeckic acid, from rutin-free tartary buckwheat extract. PubMed: Characterization of bioactive compounds from raw and ripe Mangifera indica L. peel extracts. PubMed: Effects of protocatechuic acid on trans fat induced hepatic steatosis in mice. PubMed: Phenolic compounds in chestnut (Castanea sativa Mill.) heartwood. Effect of toasting at cooperage. PubMed: Protocatechuic acid induces antioxidant/detoxifying enzyme expression through JNK-mediated Nrf2 activation in murine macrophages. PubMed: Anti-metastasis effects of gallic acid on gastric cancer cells involves inhibition of NF-kappaB activity and downregulation of PI3K/AKT/small GTPase signals. PubMed: The phenolic acids from bacterial degradation of the mangiferin aglycone are quantified in the feces of pigs after oral ingestion of an extract of Cyclopia genistoides (honeybush tea). PubMed: Antioxidant, antimutagenic, and antidiabetic activities of edible leaves from Cnidoscolus chayamansa Mc. Vaugh. PubMed: Bioavailability of strawberry antioxidants in human subjects. PubMed: Structure-property-activity relationship of phenolic acids and derivatives. Protocatechuic acid alkyl esters. PubMed: Secondary plant substances in various extracts of the leaves, fruits, stem and bark of Caraipa densifolia Mart. PubMed: Phenolic compounds in cherry ( Prunus avium ) heartwood with a view to their use in cooperage. PubMed: Isolation and identification of antioxidant and hyaluronidase inhibitory compounds from Ficus microcarpa L. fil. bark. PubMed: Systematic evaluation of antioxidant capacities of the ethanolic extract of different tissues of jujube (Ziziphus jujuba Mill.) from China. PubMed: Fast and selective microfluidic chips for electrochemical antioxidant sensing in complex samples. PubMed: Spectral alteration and degradation of cyanidin-3-glucoside exposed to pulsed electric field. PubMed: Separation and Purification of Phenolic Acids and Myricetin from Black Currant by High Speed Countercurrent Chromatography. PubMed: Metabolic fingerprint of Brazilian maize landraces silk (stigma/styles) using NMR spectroscopy and chemometric methods. PubMed: Bioavailability of various polyphenols from a diet containing moderate amounts of berries. PubMed: Polyphenolics profile, antioxidant and radical scavenging activity of leaves and stem of Raphanus sativus L. PubMed: Urinary excretion of phenolic acids in rats fed cranberry. PubMed: Moderate Champagne consumption promotes an acute improvement in acute endothelial-independent vascular function in healthy human volunteers. PubMed: Cellular uptake, stability, visualization by 'Naturstoff reagent A', and multidrug resistance protein 1 gene-regulatory activity of cyanidin in human keratinocytes. PubMed: Metabolism of cyanidin-3-O-beta-D-glucoside isolated from black colored rice and its antiscratching behavioral effect in mice. PubMed: Mulberry leaf extract inhibits vascular smooth muscle cell migration involving a block of small GTPase and Akt/NF-kappaB signals. PubMed: Protective effect of Millettia reticulata Benth against CCl(4)-induced hepatic damage and inflammatory action in rats. PubMed: Evaluation of indigenous grains from the Peruvian Andean region for antidiabetes and antihypertension potential using in vitro methods. PubMed: Anticoagulatory, antiinflammatory, and antioxidative effects of protocatechuic acid in diabetic mice. PubMed: Interaction of polyphenolic metabolites with human serum albumin: a circular dichroism study. PubMed: [Isolation and characterization of polyphenols in seed of Litchi chinensis]. PubMed: Apoptotic effects of protocatechuic acid in human breast, lung, liver, cervix, and prostate cancer cells: potential mechanisms of action. PubMed: Effects of phenolic compounds on the browning of cooked barley. PubMed: Production and physicochemical properties of recombinant Lactobacillus plantarum tannase. PubMed: Chemical characteristics of Salvia miltiorrhiza (Danshen) collected from different locations in China. PubMed: Composition of phenolic compounds and glycoalkaloids alpha-solanine and alpha-chaconine during commercial potato processing. PubMed: Phenolic acids determination by HPLC-DAD-ESI/MS in sixteen different Portuguese wild mushrooms species. PubMed: The bioactivity of dietary anthocyanins is likely to be mediated by their degradation products. PubMed: Influence of cooking on anthocyanins in black rice (Oryza sativa L. japonica var. SBR). PubMed: Phenolic acids in black raspberry and in the gastrointestinal tract of pigs following ingestion of black raspberry. PubMed: Antibacterial effects of roselle calyx extracts and protocatechuic acid in ground beef and apple juice. PubMed: Absorption and metabolism of cyanidin-3-glucoside and cyanidin-3-rutinoside extracted from wild mulberry (Morus nigra L.) in rats. PubMed: Synthesis and application of a functionalized resin in on-line system for copper preconcentration and determination in foods by flame atomic absorption spectrometry. PubMed: Protein glycation inhibitors from the fruiting body of Phellinus linteus. PubMed: Simulated digestion and antioxidant activity of red wine fractions separated by high speed countercurrent chromatography. PubMed: Lignans and other constituents of the fruits of Euterpe oleracea (Acai) with antioxidant and cytoprotective activities. PubMed: Anti-Campylobacter, anti-aerobic, and anti-oxidative effects of roselle calyx extract and protocatechuic acid in ground beef. PubMed: [Study on flavonoiels and phenolic acids from the herb of Lygodium japonicum]. PubMed: A novel oxidative dimer from protocatechuic esters: contribution to the total radical scavenging ability of protocatechuic esters. PubMed: Hibiscus sabdariffa L. extracts inhibit the mutagenicity in microsuspension assay and the proliferation of HeLa cells. PubMed: Phenolic compounds and antioxidant activity of extracts from ultrasonic treatment of Satsuma Mandarin (Citrus unshiu Marc.) peels. PubMed: Reduction kinetics of the antiradical probe 2,2-diphenyl-1-picrylhydrazyl in methanol and acetonitrile by the antiradical activity of protocatechuic acid and protocatechuic acid methyl ester. PubMed: Chemical composition, antioxidant properties, and thermal stability of a phytochemical enriched oil from Acai (Euterpe oleracea Mart.). PubMed: Antioxidant-mediated protective effect of potato peel extract in erythrocytes against oxidative damage. PubMed: Paint solvent to food additive: an environmental route of dehalogenation for 4-chlorobenzotrifluoride. PubMed: Characterization of the p-coumaric acid decarboxylase from Lactobacillus plantarum CECT 748(T). PubMed: Inhibitory constituents of aldose reductase in the fruiting body of Phellinus linteus. PubMed: Biotransformation and pharmacokinetics of 4-(3,4-dihydroxybenzoyloxymethyl)phenyl-O-beta-D-glucopyranoside, an antioxidant isolated from Origanum vulgare. PubMed: Evaluation of natural antioxidants of Leuzea carthamoides as a result of a screening study of 88 plant extracts from the European Asteraceae and Cichoriaceae. PubMed: Protocatechuic acid: the missing human cyanidins' metabolite. PubMed: Oxidative transformation of natural and synthetic phenolic mixtures by Trametes versicolor laccase. PubMed: Effect of naturally occurring phenolic acids on the expression of glutathione S-transferase isozymes in the rat. PubMed: Effect of Hibiscus anthocyanins-rich extract induces apoptosis of proliferating smooth muscle cell via activation of P38 MAPK and p53 pathway. PubMed: Onions: a source of unique dietary flavonoids. PubMed: Protocatechuic acid is the major human metabolite of cyanidin-glucosides. PubMed: Functional interaction of diphenols with polyphenol oxidase. Molecular determinants of substrate/inhibitor specificity. PubMed: Apoptosis induced by oxidized lipids is associated with up-regulation of p66Shc in intestinal Caco-2 cells: protective effects of phenolic compounds. PubMed: Sorghum bran in the diet dose dependently increased the excretion of catechins and microbial-derived phenolic acids in female rats. PubMed: Cytogenetic effects of grape extracts (Vitis vinifera) and polyphenols on mitomycin C-induced sister chromatid exchanges (SCEs) in human blood lymphocytes. PubMed: Efficiency of natural phenolic compounds regenerating alpha-tocopherol from alpha-tocopheroxyl radical. PubMed: Differentiation of young red wines based on chemometrics of minor polyphenolic constituents. PubMed: Antioxidant constituents and a new triterpenoid glycoside from Flos Lonicerae. PubMed: Apoptotic effect of 3,4-dihydroxybenzoic acid on human gastric carcinoma cells involving JNK/p38 MAPK signaling activation. PubMed: In vitro peroxynitrite scavenging activity of 6-hydroxykynurenic acid and other flavonoids from Gingko biloba yellow leaves. PubMed: Antibacterial activity of coffee extracts and selected coffee chemical compounds against enterobacteria. PubMed: Microbial transformation of ferulic acid to vanillic acid by Streptomyces sannanensis MTCC 6637. PubMed: Electromigration profiles of Cynomorium songaricum based on capillary electrophoresis with amperometric detection. PubMed: Effect of thermal processing on the flavonols rutin and quercetin. PubMed: Chemical composition of clarified bayberry (Myrica rubra Sieb. et Zucc.) juice sediment. PubMed: Protocatechuic acid suppresses MPP+ -induced mitochondrial dysfunction and apoptotic cell death in PC12 cells. PubMed: Total oxidant scavenging capacity of Euterpe oleracea Mart. (açaí) seeds and identification of their polyphenolic compounds. PubMed: Du-Zhong (Eucommia ulmoides Oliv.) leaves inhibits CCl4-induced hepatic damage in rats. PubMed: Solvent and pH effects on the antioxidant activity of caffeic and other phenolic acids. PubMed: New insights on glyphosate mode of action in nodular metabolism: Role of shikimate accumulation. PubMed: Phenolic constituents in the fruits of Cinnamomum zeylanicum and their antioxidant activity. PubMed: Evaluation of clonal herbs of Lamiaceae species for management of diabetes and hypertension. PubMed: Polyphenol composition and antioxidant activity of Kei-apple (Dovyalis caffra) juice. PubMed: Biotransformation of p-coumaric acid by Paecilomyces variotii. PubMed: Selective extraction of derivates of p-hydroxy-benzoic acid from plant material by using a molecularly imprinted polymer. PubMed: Phenolic profile of Asturian (Spain) natural cider. PubMed: Fenton's oxidation of food processing wastewater components. Kinetic modeling of protocatechuic acid degradation. PubMed: Colorimetric evaluation of phenolic content and GC-MS characterization of phenolic composition of alimentary and cosmetic argan oil and press cake. PubMed: Protocatechuic acid from Alpinia oxyphylla against MPP+-induced neurotoxicity in PC12 cells. PubMed: Antioxidative compounds from the outer scales of onion. PubMed: Comparison of antioxidant activity, anthocyanins, carotenoids, and phenolics of three native fresh and sun-dried date (Phoenix dactylifera L.) varieties grown in Oman. PubMed: Analyses of phenolic compounds by microemulsion electrokinetic chromatography. PubMed: Antioxidant activities of phenolic acids on ultraviolet radiation-induced erythrocyte and low density lipoprotein oxidation. PubMed: Determination of hydrogen peroxide scavenging activity of cinnamic and benzoic acids employing a highly sensitive peroxyoxalate chemiluminescence-based assay: structure-activity relationships. PubMed: Quercetin-dependent inhibition of nitration induced by peroxidase/H2O2/nitrite systems in human saliva and characterization of an oxidation product of quercetin formed during the inhibition. PubMed: Anthocyan does not suppress transformation of aryl hydrocarbon receptor induced by dioxin. PubMed: Radical scavenging mechanism of phenol carboxylic acids: reaction of protocatechuic esters. PubMed: Synergistic effects of thiols and amines on antiradical efficiency of protocatechuic acid. PubMed: Inhibitory effect of clonal oregano extracts against porcine pancreatic amylase in vitro. PubMed: Metabolism of gallic acid and catechin by Lactobacillus hilgardii from wine. PubMed: Antibacterial activities of naturally occurring compounds against antibiotic-resistant Bacillus cereus vegetative cells and spores, Escherichia coli, and Staphylococcus aureus. PubMed: Evaluation of antioxidant capacity of cereal brans. PubMed: Extract from Rhus verniciflua Stokes is capable of inhibiting the growth of human lymphoma cells. PubMed: Cholesterol metabolism in rat is affected by protocatechuic acid. PubMed: Effects of alcoholic solvents on antiradical abilities of protocatechuic acid and its alkyl esters. PubMed: Comparison between cachaça and rum using pattern recognition methods. PubMed: Antiproliferative and apoptotic effects of selective phenolic acids on T47D human breast cancer cells: potential mechanisms of action. PubMed: Tyrosinase inhibitor from black rice bran. PubMed: Quinone hemiacetal formation from protocatechuic acid during the DPPH radical scavenging reaction. PubMed: Antioxidant activity of 3-dehydroshikimic acid in liposomes, emulsions, and bulk oil. PubMed: Identification of an antioxidant, ethyl protocatechuate, in peanut seed testa. PubMed: High-performance liquid chromatography determination of phenolic constituents in 17 varieties of cowpeas. PubMed: Effects of phenolic acids on human phenolsulfotransferases in relation to their antioxidant activity. PubMed: Oxidative dimers produced from protocatechuic and gallic esters in the DPPH radical scavenging reaction. PubMed: Peroxynitrite scavenging activities of aromatic compounds isolated from Konnyaku, Amorphophallus konjac K.Koch. PubMed: Antioxidant activity of prune (Prunus domestica L.) constituents and a new synergist. PubMed: Determination of free and total phenolic acids in plant-derived foods by HPLC with diode-array detection. PubMed: Antioxidant activity of phenolic compounds isolated from Mesona procumbens Hemsl. PubMed: In vivo protective effect of protocatechuic acid on tert-butyl hydroperoxide-induced rat hepatotoxicity. PubMed: Antioxidative phenolic compounds isolated from almond skins (Prunus amygdalus Batsch). PubMed: Hibiscus protocatechuic acid or esculetin can inhibit oxidative LDL induced by either copper ion or nitric oxide donor. PubMed: Diphenol activation of the monophenolase and diphenolase activities of field bean (Dolichos lablab) polyphenol oxidase. PubMed: Evaluation of the antioxidant properties of free and bound phenolic acids from native and malted finger millet (ragi, Eleusine coracana Indaf-15). PubMed: Isolation and quantitative analysis of phenolic antioxidants, free sugars, and polyols from mango (Mangifera indica L.) stem bark aqueous decoction used in Cuba as a nutritional supplement. PubMed: The trans-anethole degradation pathway in an Arthrobacter sp. PubMed: New prenylated benzoic acid and other constituents from almond hulls (Prunus amygdalus Batsch). PubMed: Toxic dose of a simple phenolic antioxidant, protocatechuic acid, attenuates the glutathione level in ICR mouse liver and kidney. PubMed: Effect of natural phenolic acids on DNA oxidation in vitro. PubMed: Degradation products of cyanidin glycosides from tart cherries and their bioactivities. PubMed: 1,1-Diphenyl-2-picrylhydrazyl radical-scavenging active compounds from greater cardamom (Amomum subulatum Roxb.). PubMed: Properties of diphenolase from Vanilla planifolia (Andr.) shoot primordia cultured in vitro. PubMed: Comparison of quercetin and a non-orthohydroxy flavonol as antioxidants by competing in vitro oxidation reactions. PubMed: Metabolism of phenolic compounds during loquat fruit development. PubMed: Potential nitrite scavengers as inhibitors of the formation of N-nitrosamines in solution and tobacco matrix systems. PubMed: Reactive oxygen species scavenging activity of Du-zhong (Eucommia ulmoides oliv.) and its active compounds. PubMed: Phenolic composition of kiwifruit juice. PubMed: Spanish sparkling wines (Cavas) as inhibitors of in vitro human low-density lipoprotein oxidation. PubMed: Glyphosate effects on phenolic metabolism of nodulated soybean (Glycine max L. merr.). PubMed: Metabolism of ferulic acid via vanillin using a novel CoA-dependent pathway in a newly-isolated strain of Pseudomonas fluorescens. PubMed: The blocking effect of phenolic acid on N-nitrosomorpholine formation in vitro. PubMed: High performance liquid chromatographic determination of phenolic acids in fruits and vegetables. PubMed: Effect of different isomers of dihydroxybenzoic acids (DBA) on the rate of DL-dopa oxidation by mushroom tyrosinase. PubMed: Biotransformation of the Pentahydroxy Flavone Quercetin by Rhizobium loti and Bradyrhizobium Strains (Lotus). PubMed: Trypanosoma cruzi: a possible control of transfusion-induced Chagas' disease by phenolic antioxidants.