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You searched for: Subject term 2,5-dihydroxybenzoic acid Remove constraint Subject term: 2,5-dihydroxybenzoic acid Subject term polyphenols Remove constraint Subject term: polyphenols Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Analysis of phytochemical composition of leaf extract of sacred fig (Ficus religiosa L.) by UPLC-QqQ-MS and assessment of their hepatocurative potential in mouse model

Author:
Udhayaraj Suriyakalaa; Devanesan Arul Ananth; Rajamanickam Ramachandran; Devaraj Sankarganesh; Jayaraman Angayarkanni; Zipora Tietel; Shanmugam Achiraman
Source:
South African journal of botany 2022 pp. -
ISSN:
0254-6299
Subject:
2,5-dihydroxybenzoic acid; Ficus religiosa; antioxidant activity; bilirubin; carbon tetrachloride; catechin; chemical constituents of plants; creatinine; ethnobotany; figs; hepatotoxicity; histopathology; leaf extracts; leaves; liver; mass spectrometry; mice; polyphenols; protocatechuic acid; quinic acid; rutin; ultra-performance liquid chromatography; urea
Abstract:
... In view of their remarkable pharmacological properties and bioactivities Ficus sp. are used in traditional medicines. Ficus religiosa is richly endowed with ethnobotanical values and it is a promising entity in various medicinal formulations; however, comprehensive phytochemical identification and quantification of F. religiosa using Ultra Performance Liquid Chromatography Triple Quadrupole Mass S ...
DOI:
10.1016/j.sajb.2022.01.007

2. Do drought-adapted peanut genotypes have different bioactive compounds and ROS-scavenging activity?

Author:
Fernanda Francetto Juliano; Adna Prado Massarioli; Rosa Maria Lamuela-Raventos; José Fernando Rinaldi de Alvarenga; Liziane Maria de Lima; Roseane Cavalcanti dos Santos; Camila Furtunato da Silva; Severino Matias de Alencar
Source:
European food research & technology 2021 v.247 no.6 pp. 1369-1378
ISSN:
1438-2377
Subject:
2,5-dihydroxybenzoic acid; drought tolerance; fatty acid composition; food research; genotype; peanuts; polyphenols; technology; tocopherols; Senegal
Abstract:
... Peanuts are grown in both developed and developing countries, and their cultivation has been considerably expanded to semiarid and arid regions. In this study, we investigated the ROS-scavenging activity and bioactive composition of hydric stress-tolerant (BR1, Senegal 55,437, L7 Bege, F.M424B) and -susceptible peanut genotypes (LViPE-06, LGoPE-06 and Tatu). Peanut grains were examined for their f ...
DOI:
10.1007/s00217-021-03714-0

3. Identification and Characterization of Polyphenols from Carissa spinarum Fruit and Evaluation of Their Antioxidant and Anti-quorum Sensing Activity

Author:
Maria Sheeba Nazareth; S. V. Shreelakshmi; Nandini P. Shetty
Source:
Current microbiology 2021 v.78 no.4 pp. 1277-1285
ISSN:
0343-8651
Subject:
2,5-dihydroxybenzoic acid; Carissa spinarum; Chromobacterium violaceum; Pseudomonas aeruginosa; Yersinia enterocolitica; antibiotic resistance; antioxidant activity; antioxidants; biofilm; chemical constituents of plants; epicatechin; food spoilage; fruit extracts; fruits; humans; polyphenols; quercetin; resveratrol; syringic acid; violacein; virulence
Abstract:
... Quorum sensing controls bacterial virulence through signaling molecules, which plays a vital role in managing foodborne pathogens that cause food spoilage and human infections. Though many synthetic compounds have been used to control infection, antibiotic resistance has become a global issue. Targeting the bacterial quorum sensing using the bioactive compounds could be an alternative strategy to ...
DOI:
10.1007/s00284-021-02381-4

4. Lipid composition and some bioactivities of 3 newly isolated microalgae (Tetraselmis sp. IMP3, Tetraselmis sp. CTP4, and Skeletonema sp.)

Author:
C. Cardoso; H. Pereira; J. Franca; J. Matos; I. Monteiro; P. Pousão-Ferreira; A. Gomes; L. Barreira; J. Varela; N. Neng; J. M. Nogueira; C. Afonso; N. M. Bandarra
Source:
Aquaculture international 2020 v.28 no.2 pp. 711-727
ISSN:
0967-6120
Subject:
2,5-dihydroxybenzoic acid; Skeletonema; Tetraselmis; alpha-linolenic acid; anti-inflammatory activity; antioxidant activity; aquaculture; biomass; dietary supplements; eicosapentaenoic acid; feedstocks; iron; linoleic acid; lipid composition; microalgae; myristic acid; oleic acid; palmitic acid; polyphenols; prostaglandin synthase
Abstract:
... Recently isolated microalgae Tetraselmis sp. IMP3, Tetraselmis sp. CTP4, and Skeletonema sp. were studied. The three novel strains contained relatively high levels of polyunsaturated fatty acids (PUFA) and n3 PUFA. However, highly unsaturated n3 FA contents were relatively low (5.7–13.0% of the total FA). In general, eicosapentaenoic acid (EPA, 20:5 n3) contents were low (< 6.4% of the total FA). ...
DOI:
10.1007/s10499-019-00489-w

5. RP-HPLC-DAD determination of the differences in the polyphenol content of Fucus vesiculosus extracts with similar antioxidant activity

Author:
Desirée Sánchez-Bonet; Samanta García-Oms; Mariola Belda-Antolí; Carolina Padrón-Sanz; José Miguel Lloris-Carsi; Dolores Cejalvo-Lapeña
Source:
Journal of chromatography 2021 v.1184 pp. 122978
ISSN:
1570-0232
Subject:
2,5-dihydroxybenzoic acid; Fucus vesiculosus; antioxidant activity; caffeic acid; catechin; chlorogenic acid; diodes; epicatechin; ferulic acid; gallic acid; lipid peroxidation; macroalgae; oxidative stress; polyphenols; protocatechuic acid; reversed-phase high performance liquid chromatography; rutin; sustainable technology; vanillic acid
Abstract:
... Significant quantities of bioactive compounds have been found in the chemical composition of seaweeds. This source of natural antioxidants such as polyphenols appears to attenuate lipid peroxidation caused by oxidative stress, preventing the harmful effects of a number of injuries including ischemia–reperfusion (I/R). Conventional extraction (CE) has been used for years as a traditional method for ...
DOI:
10.1016/j.jchromb.2021.122978

6. Accumulation of Polyphenolic Compounds and Osmolytes under Dehydration Stress and Their Implication in Redox Regulation in Four Indigenous Aromatic Rice Cultivars

Author:
Nivedita Dey; Soumen Bhattacharjee
Source:
Rice science 2020 v.27 no.4 pp. 329-344
ISSN:
1672-6308
Subject:
2,5-dihydroxybenzoic acid; Oryza sativa; apigenin; benzoic acid; betaine; biomarkers; caffeic acid; catechin; chlorogenic acid; confocal microscopy; cultivars; drought tolerance; gallic acid; homeostasis; hydrogen peroxide; indigenous species; kaempferol; myricetin; naringin; oxidation; p-coumaric acid; polyethylene glycol; polyphenols; potassium; proline; protocatechuic acid; quercetin; rice; rutin; salicylic acid; seeds; sinapic acid; superoxide anion; syringic acid; thiobarbituric acid-reactive substances; thiols; water stress; India
Abstract:
... Present work was undertaken to screen some drought tolerant indigenous aromatic rice cultivars (IARCs), commonly cultivated in West Bengal, India, based on their capacity to produce osmolytes, redox-sensitive phenolic acids and flavonoids, as contrivances for redox-regulation under drought stress. Polyethylene glycol induced post imbibitional dehydration stress mediated changes in redox regulatory ...
DOI:
10.1016/j.rsci.2020.05.008

7. Fermented curly kale as a new source of gentisic and salicylic acids with antitumor potential

Author:
Magdalena Michalak; Dominik Szwajgier; Roman Paduch; Wirginia Kukula-Koch; Adam Waśko; Magdalena Polak-Berecka
Source:
Journal of functional foods 2020 v.67 pp. 103866
ISSN:
1756-4646
Subject:
2,5-dihydroxybenzoic acid; Brassica oleracea var. sabellica; anti-inflammatory activity; antineoplastic activity; epithelial cells; fermentation; high performance liquid chromatography; human cell lines; lactic acid bacteria; mass spectrometry; neoplasms; polyphenols; salicylic acids; vegetables
Abstract:
... This paper demonstrates the role of curly kale fermentation by autochthonous lactic acid bacteria in the formation of bioactive derivatives of phenolic compounds which may have anticancer properties. LC-MS and HPLC analyses were performed and the content of polyphenols in curly kale before and during fermentation were determined. Bioactive properties of salicylic and gentisic acids were tested in ...
DOI:
10.1016/j.jff.2020.103866

8. In vitro study of genotoxic and cytotoxic activities of methanol extracts of Artemisia vulgaris L. and Artemisia alba Turra

Author:
Marina Radović Jakovljević; Darko Grujičić; Jovana Tubić Vukajlović; Aleksandra Marković; Milena Milutinović; Milan Stanković; Nenad Vuković; Milena Vukić; Olivera Milošević-Djordjević
Source:
South African journal of botany 2020 v.132 pp. 117-126
ISSN:
0254-6299
Subject:
2,5-dihydroxybenzoic acid; Artemisia vulgaris; assays; chemical composition; chlorogenic acid; chronic exposure; colorectal neoplasms; cytotoxicity; exhibitions; extracts; flavonoids; frequency; high performance liquid chromatography; humans; in vitro studies; ligaments; lymphocytes; methanol; micronucleus tests; mitomycin; mutagens; neoplasm cells; polyphenols; spectrophotometers; stem cells; viability
Abstract:
... The aim of the study was to investigate genotoxic and cytotoxic activities of Artemisia vulgaris L. and Artemisia alba Turra methanol extracts concerning their chemical composition, separately and in co-treatment with a known mutagen (mitomycin C, MMC). For these evaluations, the cytokinesis-block micronucleus (CBMN) assay as the method for measuring MN frequency in human peripheral blood lymphocy ...
DOI:
10.1016/j.sajb.2020.04.016

9. Polyphenol and flavonoid profiles and radical scavenging activity in leafy vegetable Amaranthus gangeticus

Author:
Umakanta Sarker; Shinya Oba
Source:
BMC plant biology 2020 v.20 no.1 pp. 499
ISSN:
1471-2229
Subject:
2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; Amaranthus tricolor; antioxidant activity; antioxidants; apigenin; betalains; caffeic acid; catechin; chlorogenic acid; color; cultivars; dietary supplements; dyes; ellagic acid; ferulic acid; gallic acid; industry; kaempferol; leaves; myricetin; naringenin; p-coumaric acid; pharmacology; polyphenols; protocatechuic acid; quercetin; rutin; salicylic acid; scientists; sinapic acid; syringic acid; taste; vanillic acid; vegetables; Bangladesh; India; South East Asia
Abstract:
... BACKGROUND: Red amaranth (Amaranthus gangeticus L.) has great diversity in Bangladesh, India, and South East Asia with multipurpose uses. The bright red-violet colored A. gangeticus is a popular and low-cost leafy vegetable in the Asian continent including Bangladesh and India because of attractive leaf color, taste, adequate nutraceuticals, phenolic compounds, and sole source of betalains. The na ...
DOI:
10.1186/s12870-020-02700-0

10. Assessing Anticancer Potential of Blueberry Flavonoids, Quercetin, Kaempferol, and Gentisic Acid, Through Oxidative Stress and Apoptosis Parameters on HCT-116 Cells

Author:
Ebru Demirel Sezer; Latife Merve Oktay; Elif Karadadaş; Hikmet Memmedov; Nur Selvi Gunel; Eser Sözmen
Source:
Journal of medicinal food 2019 v.22 no.11 pp. 1118-1126
ISSN:
1557-7600
Subject:
2,5-dihydroxybenzoic acid; Vaccinium myrtillus; antineoplastic activity; antineoplastic agents; antioxidant activity; antioxidants; apoptosis; blueberries; cytotoxicity; diet; flow cytometry; fruit extracts; kaempferol; liquid chromatography; neoplasms; oxidants; oxidative stress; polyphenols; protein composition; protein microarrays; proteins; quercetin; tandem mass spectrometry; therapeutics
Abstract:
... In recent years, natural products gained popularity with their anti-inflammatory and antioxidant effects mediated by chemical compounds within their composition. Study results offering them as palliative therapy options in cancer or as anticancer agents with high levels of cytotoxicity brought a new approach to combine cancer treatment protocols with these products. From a different perspective, e ...
DOI:
10.1089/jmf.2019.0098

11. Inhibitory effects of edible seaweeds, polyphenolics and alginates on the activities of porcine pancreatic α-amylase

Author:
Nazikussabah Zaharudin; Armando Asunción Salmeán; Lars Ove Dragsted
Source:
Food chemistry 2018 v.245 pp. 1196-1203
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; Laminaria; Undaria pinnatifida; acarbose; acetone; alginates; alpha-amylase; edible seaweed; enzyme activity; glucose; hyperglycemia; inhibitory concentration 50; methanol; plant extracts; polyphenols; sensory properties; starch; swine
Abstract:
... Edible seaweeds are valuable because of their organoleptic properties and complex polysaccharide content. A study was conducted to investigate the potential of dried edible seaweed extracts, its potential phenolic compounds and alginates for α-amylase inhibitory effects. The kinetics of inhibition was assessed in comparison with acarbose. The methanol extract of Laminaria digitata and the acetone ...
DOI:
10.1016/j.foodchem.2017.11.027

12. Metabolic Profiling of Dietary Polyphenols and Methylxanthines in Normal and Malignant Mammary Tissues from Breast Cancer Patients

Author:
María Ángeles Ávila‐Gálvez; Rocío García‐Villalba; Francisco Martínez‐Díaz; Beatriz Ocaña‐Castillo; Tamara Monedero‐Saiz; Adela Torrecillas‐Sánchez; Beatriz Abellán; Antonio González‐Sarrías; Juan Carlos Espín
Source:
Molecular nutrition & food research 2019 v.63 no.9 pp. e1801239
ISSN:
1613-4125
Subject:
2,5-dihydroxybenzoic acid; animal tissues; antineoplastic activity; breast neoplasms; breasts; caffeine; chemoprevention; epithelial cells; grape seed extract; lemons; mammary glands; metabolites; metabolomics; methylxanthines; neoplasm cells; olives; patients; polyphenols; pomegranates; resveratrol; surgery; theobromine; urine
Abstract:
... SCOPE: Dietary polyphenols may protect against breast cancer. However, it is unknown whether polyphenols reach human malignant breast tumors in molecular forms and(or) at concentrations likely to act against cancer. METHODS AND RESULTS: Ninteen breast cancer patients consumed three capsules daily from biopsy‐confirmed diagnosis to surgery (6 ± 2 days). The capsules contained pomegranate, orange, l ...
DOI:
10.1002/mnfr.201801239

13. Composition and antioxidant, antibacterial, and anti-HepG2 cell activities of polyphenols from seed coat of Amygdalus pedunculata Pall

Author:
Cairui Lu; Cong Li; Bang Chen; Yehua Shen
Source:
Food chemistry 2018 v.265 pp. 111-119
ISSN:
0308-8146
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Aspergillus niger; Bacillus cereus; Bacillus subtilis; Escherichia coli; Prunus; Staphylococcus aureus; antibacterial properties; antineoplastic activity; antineoplastic agents; antioxidant activity; apigenin; apoptosis; ascorbic acid; cell proliferation; cell viability; cyanidin; free radicals; gallic acid; human cell lines; hydrogen peroxide; iron; kaempferol; keracyanin; naringenin; polyphenols; quercetin; quercitrin; seed coat; superoxide anion; viability assays
Abstract:
... This study aims at identifying the composition of polyphenols present in Amygdalus pedunculata Pall seed coat (APSC), and characterizing their antioxidant, antibacterial, and anticancer activities. The polyphenols from APSC were composed of 32 compounds. The compounds with important biological activities included apigenin 7-O-glucoside (the main component; 34.53 mg/100 g), quercitrin (23.43 mg/100 ...
DOI:
10.1016/j.foodchem.2018.05.091

14. Different inhibition mechanisms of gentisic acid and cyaniding-3-O-glucoside on polyphenoloxidase

Author:
Lei Zhou; Zhiqiang Xiong; Wei Liu; Liqiang Zou
Source:
Food chemistry 2017 v.234 pp. 445-454
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; active sites; catechol oxidase; fruits; grains; heat inactivation; hydrogen bonding; molecular models; mushrooms; polyphenols; spectral analysis; van der Waals forces
Abstract:
... Gentisic acid and cyanidin-3-O-glucoside are important bioactive polyphenols which are widely distributed in many fruits and cereals. In this work, kinetic study, spectral analysis and computational simulation were used to compare the inhibitory effects and inhibition mechanisms of gentisic acid and cyanidin-3-O-glucoside on mushroom polyphenoloxidase (PPO). The inhibitory effect of cyanidin-3-O-g ...
DOI:
10.1016/j.foodchem.2017.05.010

15. Polyphenol composition and antimicrobial activity of various solvent extracts from different plant parts of Moringa oleifera

Author:
Mayakrishnan Prabakaran; Seung-Hyun Kim; Asokan Sasireka; Murugesan Chandrasekaran; Ill-Min Chung
Source:
Food bioscience 2018 v.26 pp. 23-29
ISSN:
2212-4292
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Moringa oleifera; Pectobacterium carotovorum; Pseudomonas aeruginosa; antibacterial properties; antioxidant activity; biochanin A; ethanol; ethyl acetate; flowers; free radical scavengers; growth retardation; hydroxybenzoic acids; leaf extracts; leaves; medicinal properties; methanol; minimum inhibitory concentration; myricetin; polyphenols; quercetin; roots; seeds; solvents; ultra-performance liquid chromatography
Abstract:
... The extracts of Moringa oleifera, a traditional medicinal and culinary plant containing phytochemicals with diverse therapeutic properties were investigated. Five parts of the plant were extracted with 5 different solvents to analyze the total phenolics content (TPC) and total flavonoids content (TFC) which were then tested for their antioxidant activity using 2,2-diphenyl-1-picrylhydrazyl (DPPH) ...
DOI:
10.1016/j.fbio.2018.09.003

16. Antioxidative Effects of Phenolic Compounds of Mushroom Mycelia in Simulated Regions of the Human Colon, In Vitro Study

Author:
Emanuel Vamanu; Diana Pelinescu; Ionela Avram
Source:
Polish journal of food and nutrition sciences 2017 v.68 no.1 pp. 83-90
ISSN:
2083-6007
Subject:
2,5-dihydroxybenzoic acid; Agaricus bisporus; Bifidobacterium; Enterobacteriaceae; Lactobacillus; Lentinula edodes; Pleurotus ostreatus; antioxidant activity; antioxidants; basidia; bioactive compounds; caffeic acid; colon; fermentation; freeze drying; high performance liquid chromatography; humans; metabolites; mushrooms; mycelium; polyphenols
Abstract:
... Many compounds in mushrooms are biologically active; however, the in vivo actions of their metabolites are poorly understood. An in vitro system, GIS1, was used to simulate the fermentation action of microbiota in each colon region. We used MycoPo, a natural product obtained from the lyophilized mycelia of different Pleurotus ostreatus species to determine the biological effects in human-colon reg ...
DOI:
10.1515/pjfns-2017-0010

17. Protein glycation and aggregation inhibitory potency of biomolecules from black gram milled by‐product

Author:
Talakatta K Girish; Ummiti JS Prasada Rao
Source:
Journal of the science of food and agriculture 2016 v.96 no.15 pp. 4973-4983
ISSN:
0022-5142
Subject:
2,5-dihydroxybenzoic acid; advanced glycation end products; black gram; bovine serum albumin; diabetic complications; dose response; epicatechin; ferulic acid; fluorescence; functional foods; gallic acid; glycation; hyperglycemia; iron; liquid chromatography; pathogenesis; polyphenols; protocatechuic acid; transmission electron microscopy
Abstract:
... BACKGROUND: Persistent hyperglycaemia causes increased advanced glycation end products (AGEs), which contribute to the pathogenesis of diabetic complication. Therefore, effect of black gram milled by‐product (BGBP) extract on inhibition of AGE formation in a bovine serum albumin (BSA)/glucose system was investigated. RESULTS: BGBP extract had a total polyphenol content of 82 mg GAE g⁻¹ and flavono ...
DOI:
10.1002/jsfa.7980

18. Chitosan nanoparticles loaded with 2,5-dihydroxybenzoic acid and protocatechuic acid: Properties and digestion

Author:
Ana Raquel Madureira; Adriana Pereira; Manuela Pintado
Source:
Journal of food engineering 2016 v.174 pp. 8-14
ISSN:
0260-8774
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; bioactive compounds; chitosan; differential scanning calorimetry; digestion; energy; food matrix; functional foods; gastrointestinal system; gelation; ingredients; light scattering; melting; models; molecular weight; nanoparticles; polyphenols; protocatechuic acid; temperature; thermal properties
Abstract:
... Research efforts on the production of chitosan nanoparticles (NP) as delivery systems of bioactive compounds such as polyphenols have been made along the last decade. Nevertheless, the effect of the phenolic compound structure in the production of these NP was never evaluated so far. Low and high molecular weights chitosan (LMWC and HMWC) NP loaded with the phenolic acids, protocatechuic (PA) and ...
DOI:
10.1016/j.jfoodeng.2015.11.007

19. Evaluation of polyphenol composition and biological activities of two samples from summer and winter seasons of Ligularia fischeri var. Spiciformis Nakai

Author:
Kaliyaperumal Rekha; Chandran Sivasubramanian; Muthu Thiruvengadam
Source:
Acta biologica Hungarica 2015 v.66 no.2 pp. 179-191
ISSN:
1588-256X
Subject:
2,5-dihydroxybenzoic acid; Ligularia fischeri; anti-infective properties; antioxidant activity; antioxidants; butanol; caffeic acid; ethyl acetate; ferulic acid; gallic acid; kaempferol; leaf extracts; methanol; myricetin; petroleum; polyphenols; protocatechuic acid; pyrogallol; quercetin; salicylic acid; solvents; summer; ultra-performance liquid chromatography; winter
Abstract:
... Phenolic contents, antioxidant and antimicrobial activities were determined by two samples from summer (June) and winter (December) seasons of Ligularia fischeri var. spiciformis Nakai. A total of 24 phenolic compounds were identified by ultra-performance liquid chromatography (UPLC) analysis. Myricetin (1964.35 and 1829.12 μg/g) was the most dominant flavonol compared to quercetin and kaempferol. ...
DOI:
10.1556/018.66.2015.2.5

20. Extraction of polyphenols in Himanthalia elongata and determination by high performance liquid chromatography with diode array detector prior to its potential use against oxidative stress

Author:
Mariola Belda; Desiré Sanchez; Elena Bover; Beatriz Prieto; Carolina Padrón; Dolores Cejalvo; Jose Miguel Lloris
Source:
Journal of chromatography 2016 v.1033-1034 pp. 334-341
ISSN:
1570-0232
Subject:
2,5-dihydroxybenzoic acid; Himanthalia elongata; antioxidant activity; antioxidants; biopharmaceuticals; caffeic acid; catechin; chlorogenic acid; ethanol; gallic acid; high performance liquid chromatography; macroalgae; myricetin; oxidative stress; polyphenols; quercetin; rutin; solvents; temperature
Abstract:
... Several studies have demonstrated the antioxidant capacity of seaweeds, which can be used for the development of biopharmaceuticals with extensive medical application. Antioxidant therapies appear to attenuate the organic deterioration originated by an excessive oxidative stress, which could prevent the harmful effects of various injuries such as ischemia-reperfusion (I/R) among others. Marine bro ...
DOI:
10.1016/j.jchromb.2016.09.001

21. HPLC/MS analysis of polyphenols, antioxidant and antimicrobial activities of Artabotrys hildebrandtii O. Hffm. extracts

Author:
Julio Hervé Andriamadio; Léa Herilala Rasoanaivo; Daniela Benedec; Laurian Vlase; Ana-Maria Gheldiu; Mihaela Duma; Anca Toiu; Amélie Raharisololalao; Ilioara Oniga
Source:
Natural product research 2015 v.29 no.23 pp. 2188-2196
ISSN:
1478-6427
Subject:
2,5-dihydroxybenzoic acid; Artabotrys; Listeria monocytogenes; Staphylococcus aureus; anti-infective properties; apigenin; bark; butylated hydroxytoluene; chemical composition; chlorogenic acid; drugs; ethanol; free radical scavengers; gentamicin; high performance liquid chromatography; isoquercitrin; leaf extracts; leaves; luteolin; mass spectrometry; medicinal plants; polyphenols; quercetin; quercitrin; rutin; spectrophotometers; Madagascar
Abstract:
... The purpose of this work was to evaluate chemical constituents, antioxidant and antimicrobial activities of Artabotrys hildebrandtii, an endemic medicinal plant from Madagascar. Ethanol extracts from the leaves and stem bark were tested to evaluate DPPH free radical scavenging, using butylated hydroxytoluene and quercetin as standard antioxidants. An high-performance liquid chromatography/mass spe ...
DOI:
10.1080/14786419.2015.1007458

22. Phenolic profile of Dunaliella tertiolecta growing under high levels of copper and iron

Author:
Aroa López; Milagros Rico; J. Magdalena Santana-Casiano; Aridane G. González; Melchor González-Dávila
Source:
Environmental science and pollution research international 2015 v.22 no.19 pp. 14820-14828
ISSN:
0944-1344
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Dunaliella tertiolecta; antioxidant activity; catechin; cell growth; copper; environmental factors; epicatechin; extracts; free radicals; iron; metabolism; metal ions; microalgae; polyphenols; reversed-phase high performance liquid chromatography; seawater
Abstract:
... The present study investigates the phenolic profile of exudates and extracts of the green algae Dunaliella tertiolecta, harvested in natural seawater in the absence (control) and in the presence of Cu(II) (315 and 790 nmol L⁻¹) and Fe(III) (900 nmol L⁻¹) in order to identify and quantify the phenolic compounds produced under metallic stress conditions. The presence of metal ions modifies the growt ...
DOI:
10.1007/s11356-015-4717-y

23. Anti-apoptotic effects of novel phenolic antioxidant isolated from the Pacific oyster (Crassostrea gigas) on cultured human hepatocytes under oxidative stress

Author:
Hirotoshi Fuda; Mitsugu Watanabe; Shu-Ping Hui; Sae Joko; Hiroaki Okabe; Shigeki Jin; Seiji Takeda; Emiko Miki; Takayuki Watanabe; Hitoshi Chiba
Source:
Food chemistry 2015 v.176 pp. 226-233
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; Crassostrea gigas; DNA; antioxidants; apoptosis; ascorbic acid; butylated hydroxytoluene; catechin; cell viability; chlorogenic acid; cytotoxicity; daidzein; docosahexaenoic acid; eicosapentaenoic acid; flow cytometry; hepatocytes; hepatoprotective effect; humans; mass spectrometry; matairesinol; necrosis; oxidative stress; oyster meat; oysters; polyphenols
Abstract:
... The antioxidant, and hepatoprotective properties of 3,5-dihydroxy-4-methoxybenzyl alcohol (DHMBA), a natural phenolic antioxidant isolated from the Pacific oyster, were defined using cultured human hepatocyte-derived cells (C3A). DHMBA showed no cytotoxicity at 62.5–500μM, as well as chlorogenic acid (CGA), vitamin C, and vitamin E. However, butylated hydroxytoluene, eicosapentaenoic acid, docosah ...
DOI:
10.1016/j.foodchem.2014.12.066

24. Qualitative and Quantitative Analysis of Potentilla fulgens Roots by NMR, Matrix‐assisted Laser Desorption/Ionisation with Time‐of‐Flight MS, Electrospray Ionisation MS/MS and HPLC/UV

Author:
Alka Choudhary; Manukonda Radhika; Anupam Chatterjee; Uttam Chand Banerjee; Inder Pal Singh
Source:
Phytochemical analysis 2015 v.26 no.2 pp. 161-170
ISSN:
0958-0344
Subject:
2,5-dihydroxybenzoic acid; Potentilla siemersiana; catechin; chemical composition; dimethyl sulfoxide; epicatechin; high performance liquid chromatography; matrix-assisted laser desorption-ionization mass spectrometry; nuclear magnetic resonance spectroscopy; polyphenols; quantitative analysis; roots; traditional medicine; triterpene acids; Bhutan; India; Nepal
Abstract:
... INTRODUCTION: Potentilla fulgens is a commonly used folk medicine by natives of northeast India, Nepal and Bhutan and is rich in polyphenolic and triterpene constituents. OBJECTIVE: To identify chemomarkers in the roots of P. fulgens by an interplay of¹³C‐NMR, matrix‐assisted laser desorption/ionisation with time‐of‐flight (MALDI/TOF) MS, electrospray ionisation (ESI) MS/MS and HPLC/UV. MATERIAL A ...
DOI:
10.1002/pca.2547

25. Constituents of Cocoa Husks

Author:
Josep Serra Bonvehí; Rossend Escolá Jordà
Source:
Zeitschrift für Naturforschung 2014 v.53 no.9-10 pp. 785-792
ISSN:
1865-7125
Subject:
2,5-dihydroxybenzoic acid; Recommended Dietary Allowances; Theobroma cacao; alkaloids; argon (noble gases); caffeic acid; calcium; chromium; cocoa beans; cocoa hulls; copper; high performance liquid chromatography; iron; magnesium; mineral content; phytic acid; polyphenols; potassium; sodium; spectrometers; sugars; vitamins; zinc; Africa; South America
Abstract:
... Mineral composition, vitamins (group B, C and D), polyphenols, purine alkaloids, sugars and phytic acid were determined in twelve samples of cocoa husk of the main varieties of cocoa beans (Theobroma cacao L.) cultivated in Africa and South America. Macro- (K, Mg, Ca, Na, P, and Na) and micro elements (Cu, Zn, Fe, and Cr) were quantified using an inductively coupled argon plasma-optical emission s ...
DOI:
10.1515/znc-1998-9-1002

26. Polyphenol composition and antioxidant capacity from different extracts of Aster scaber

Author:
M. Thiruvengadam; N. Praveen; B. R. Yu; S. H. Kim; I. M. Chung
Source:
Acta biologica Hungarica 2014 v.65 no.2 pp. 144-155
ISSN:
0236-5383
Subject:
2,5-dihydroxybenzoic acid; Aster scaber; antioxidant activity; butanol; caffeic acid; ethyl acetate; free radical scavengers; gallic acid; kaempferol; leaf extracts; leaves; methanol; myricetin; petroleum; polyphenols; quercetin; solvents; ultra-performance liquid chromatography
Abstract:
... Phenolic contents and antioxidant capacities from different solvent extracts (petroleum ether, ethyl acetate, methanol, butanol and water) of Aster scaber leaf were investigated. Antioxidant activity was evaluated by three different methods, namely DPPH radical scavenging activity, reducing power assay and phosphomolybdenum activity. A total of twenty-three polyphenolic compounds were ident ...
DOI:
10.1556/ABiol.65.2014.2.3

27. Polyphenolic profile and antioxidant properties of rhizome of commercial banana cultivars grown in India

Author:
Saravanan Kandasamy; Somaradhya Mallikarjuna Aradhya
Source:
Food bioscience 2014 v.8 pp. 22-32
ISSN:
2212-4292
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; acetone; antioxidant activity; bananas; beta-carotene; bleaching; caffeic acid; catechin; cinnamic acid; cultivars; electrospray ionization mass spectrometry; ferulic acid; hydrogen peroxide; median effective concentration; methanol; models; nitric oxide; peroxidation; pharmaceutical industry; polyphenols; protocatechuic acid; rhizomes; wastes; India
Abstract:
... In this present study, we probed the use of banana rhizome (BR), which is a bio-waste of banana plant as a source of polyphenols or antioxidants. Among the rhizome of eight commercial banana cultivars grown in India, cv. Nanjanagudu Rasabale (NR) displayed highest Total Phenolic Content (TPC), Total Flavonoid Content (TFC) and DPPH radical scavenging activity. Hence, cv. NR is used to study phenol ...
DOI:
10.1016/j.fbio.2014.10.001

28. In vitro activity of extracts and isolated polyphenols from West African medicinal plants against Plasmodium falciparum

Author:
Dieudonné Ndjonka; Bärbel Bergmann; Christian Agyare; Flávia M. Zimbres; Kai Lüersen; Andreas Hensel; Carsten Wrenger; Eva Liebau
Source:
Parasitology research 2012 v.111 no.2 pp. 827-834
ISSN:
0932-0113
Subject:
2,5-dihydroxybenzoic acid; Anogeissus; Khaya senegalensis; Phyllanthus; Plasmodium falciparum; ellagic acid; gallic acid; malaria; medicinal plants; plant extracts; polyphenols; toxicity; Western Africa
Abstract:
... The aim of the study was to screen 11 selected traditional medicinal plants from West Africa for their in vitro antiplasmodial activity in order to determine the activity of single and of combination of plant extracts and to examine the activity of isolated pure compounds. Ethanolic and aqueous extracts of the 11 selected plants and pure compounds from Phyllanthus muellerianus and Anogeissus leioc ...
DOI:
10.1007/s00436-012-2905-y
PubMed:
22476602

29. Enhancement of soluble dietary fibre, polyphenols and antioxidant properties of chapatis prepared from whole wheat flour dough treated with amylases and xylanase

Author:
Mysore S Hemalatha; Suresh G Bhagwat; Paramahans V Salimath; Ummiti JS Prasada Rao
Source:
Journal of the science of food and agriculture 2012 v.92 no.4 pp. 764-771
ISSN:
0022-5142
Subject:
2,5-dihydroxybenzoic acid; amylases; antioxidant activity; caffeic acid; carbohydrates; crosslinking; dough; enzymatic treatment; insoluble fiber; liquid chromatography; polyphenols; proteins; soluble fiber; wheat flour; xylanases
Abstract:
... BACKGROUND: Chapati preparation involves various processing steps such as mixing the flour into dough, sheeting and baking. During these processing steps, flour components are likely to undergo changes in their nutrient and polyphenol composition and their antioxidant properties due to phenol‐mediated crosslinking of proteins and carbohydrates. Therefore, in the present study, changes in nutrition ...
DOI:
10.1002/jsfa.4640
PubMed:
21953440

30. Polyphenols of Pseudostem of Different Banana Cultivars and Their Antioxidant Activities

Author:
Saravanan, K.; Aradhya, S.M.
Source:
Journal of agricultural and food chemistry 2011 v.59 no.8 pp. 3613–3623
ISSN:
0021-8561
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; bananas; caffeic acid; cinnamic acid; cultivars; ferulic acid; flavonoids; gallic acid; high performance liquid chromatography; methanol; polyphenols; protocatechuic acid; wastes
Abstract:
... The present investigation is focused on potential use of banana pseudostem (BPS), which otherwise is disposed off as a waste or incinerated, as a source of polyphenols or antioxidants. The total phenolics (TP) and total flavonoids (TF) in various solvent extracts of pseudostem (PS) of different banana cultivars varied from 7.58 to 291 mg gallic acid equivalent (GAE/g of extract) and from 4 to 80 m ...
DOI:
10.1021/jf103835z
PubMed:
21405133

31. Identification and quantification of phenolic compounds from Balanites aegyptiaca (L) Del (Balanitaceae) galls and leaves by HPLC–MS

Author:
R.N.T. Meda; L. Vlase; A. Lamien-Meda; C.E. Lamien; D. Muntean; B. Tiperciuc; I. Oniga; O.G. Nacoulma
Source:
Natural product research 2011 v.25 no.2 pp. 93-99
ISSN:
1478-6427
Subject:
Balanites aegyptiacus; polyphenols; quercitrin; rutin; caffeic acid; isoquercitrin; kaempferol; 2,5-dihydroxybenzoic acid; sinapic acid; high performance liquid chromatography; mass spectrometry; p-coumaric acid; acid hydrolysis; galls; screening; ferulic acid; leaves
Abstract:
... Balanites aegyptiaca is a tropical plant which is widely used for medicinal purposes in several African countries, including Burkina Faso. Despite its widespread use, little is known about its phenolic content. This study sought to carry out a screening of the polyphenols from the leaves and galls of B. aegyptiaca. A high-performance liquid chromatography–mass spectrometry method was used to inves ...
DOI:
10.1080/14786419.2010.482933

32. Structure and Function of the Oxidation Products of Polyphenols and Identification of Potent Lipoxygenase Inhibitors from Fe-Catalyzed Oxidation of Resveratrol

Author:
Shingai, Yoshimi; Fujimoto, Aya; Nakamura, Mitsuhiro; Masuda, Toshiya
Source:
Journal of agricultural and food chemistry 2011 v.59 no.15 pp. 8180-8186
ISSN:
0021-8561
Subject:
epicatechin; polyphenols; nordihydroguaiaretic acid; taxifolin; protocatechuic acid; alpha-tocopherol; rosmarinic acid; chlorogenic acid; syringic acid; iron; oxidation; gallic acid; linoleate 13S-lipoxygenase; sinapic acid; ellagic acid; resveratrol; catechin; quercetin; caffeic acid; propyl gallate; 2,5-dihydroxybenzoic acid; physicochemical properties; active ingredients
Abstract:
... Polyphenols have recently attracted much attention as potent antioxidants and related bioactive substances. These potent antioxidative polyphenols are very oxidizable due to their chemical properties, and their oxidation products must accumulate in the oxidizing foods when they are contained as the active ingredients. In this investigation, 30 polyphenols and related phenolics were oxidized with o ...
DOI:
10.1021/jf202561p
PubMed:
21726087

33. Rapid Determination of Simple Polyphenols in Grapes by LC Using a Monolithic Column

Author:
Liazid, Ali; Barbero, Gerardo F.; Palma, Miguel; Brigui, Jamal; Barroso, Carmelo G.
Source:
Chromatographia 2010 v.72 no.5-6 pp. 417-424
ISSN:
0009-5893
Subject:
2,5-dihydroxybenzoic acid; acetic acid; caffeic acid; catechin; chromatography; detectors; epicatechin; ferulic acid; fluorescence; gallic acid; grapes; methanol; p-coumaric acid; polyphenols; resveratrol; sinapic acid; solvents; temperature; vanillin
Abstract:
... The development of a rapid, reliable and reproducible LC method for the determination and quantification of 13 polyphenols (gallic acid, protocatechuic aldehyde, gentisic acid, catechin, vanillinic acid, caffeic acid, vanillin, epicatechin, syringaldehyde, p-coumaric acid, ferulic acid, sinapic acid and resveratrol) in grapes and derived products is reported. The polyphenols were separated in less ...
DOI:
10.1365/s10337-010-1678-7