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You searched for: Subject antioxidant activity Remove constraint Subject: antioxidant activity Subject 2,5-dihydroxybenzoic acid Remove constraint Subject: 2,5-dihydroxybenzoic acid
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1. Antioxidant capacity and interaction of endogenous phenolic compounds from tea seed oil

Author:
Guoyan Liu; Wenqi Zhu; Sitong Li; Wanli Zhou; Huijuan Zhang; Jing Wang; Xiaofang Liu; Jixian Zhang; Li Liang; Xin Xu
Source:
Food chemistry 2022 v.376 pp. 131940
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; antioxidants; ethanol; food chemistry; lipid peroxidation; oxidative stability; quercetin; rancidity; seed oils; tartaric acid
Abstract:
... Endogenous phenols play a significant role in delaying oil rancidity. In this study, the profile of 22 endogenous phenols was determined from tea seed oil by UPLC-MS/MS, of which 15 phenols were identified for the first time. Then seven phenols with high content and strong antioxidant capacity were selected to investigate interaction using the DPPH· and Rancimat. It was found that the interaction ...
DOI:
10.1016/j.foodchem.2021.131940

2. Characterization and application of Croton blanchetianus Baill extract for lamb ribs preservation

Author:
Maria José de Figueiredo; Cristiani Viegas Brandão Grisi; Ângela Maria Santiago; Erica de Andrade Vieira; Angela Maria Tribuzy de Magalhães Cordeiro; Anderson Ferreira Vilela; Arianne Dantas Viana; Solange de Sousa; Líbia de Sousa Conrado
Source:
Food chemistry 2022 v.373 pp. 131404
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; Artemia salina; Aspergillus flavus; Croton; Escherichia coli; Listeria innocua; Salmonella enterica; Staphylococcus aureus; absorbents; antimicrobial properties; antioxidant activity; antioxidants; catechin; cold storage; food chemistry; heat treatment; leaf extracts; lethal dose 50; lipid peroxidation; myricetin; ovens; rosmarinic acid
Abstract:
... This research evaluated the antioxidant, antimicrobial and toxicity potential of the leaf extract of Croton blanchetianus Baill (ExCb) and its effect on the conservation of lamb ribs. The ExCb (control treatment) revealed higher concentration of 2,5-dihydroxybenzoic acid (190.10 mg/g), catechin (84.10 mg/g), rosmarinic acid (56.01 mg/g), 4-hydroxybenzoic acid (52.05 mg/g) and myricetin (40.00 mg/g ...
DOI:
10.1016/j.foodchem.2021.131404

3. Comparative assessment of phenolics, antioxidant and antiproliferative activities between Hippophae rhamnoides ssp. sinensis and H. tibetana leaf in Qinghai-Tibet Plateau

Author:
Juan Wei; Tingting Su; Hailan Su; Yumei Jiang; Jixin Li; Yang Bi
Source:
Food bioscience 2022 v.46 pp. 101507
ISSN:
2212-4292
Subject:
2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; Hippophae rhamnoides; antioxidant activity; benzoic acid; chlorides; cyanidin; ellagic acid; epigallocatechin; ethanol; flavanols; flavanones; free radicals; healthy diet; leaves; methyl gallate; myrtillin; procyanidins; rutin; taxifolin; China
Abstract:
... Hippophae rhamnoides ssp. sinensis (Rha) and H. tibetana (Tib) are two species of sea buckthorn which distribute in Qinghai-Tibet Plateau. Our results showed that both sea buckthorn leaf exhibited high total phenolic and flavonoid content, and Rha leaf showed much higher level. In addition, 66 phenolic compounds were detected, belonging to classes of benzoic acid derivatives, flavonols, flavanols, ...
DOI:
10.1016/j.fbio.2021.101507

4. Modification of β-lactoglobulin by phenolic conjugations: Protein structural changes and physicochemical stabilities of stripped hemp oil-in-water emulsions stabilized by the conjugates

Author:
Hui Li; Yanxiong Pan; Zhongyu Yang; Jiajia Rao; Bingcan Chen
Source:
Food hydrocolloids 2022 v.128 pp. 107578
ISSN:
0268-005X
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; antioxidants; biopolymers; emulsifiers; emulsifying; emulsions; hemp; hydrocolloids; hydrophobicity; lipid peroxidation; oil-water interface; oxidative stability; solubility; surface tension
Abstract:
... Preventing lipid oxidation at the oil-water interface is critical for suppressing food emulsion deterioration and thus minimizing the economy loss. However, it is challenging to specifically localize the needed antioxidant species at the interface, failing in which often results in poor oxidative stability of emulsions. Here, we show that by grafting gentisic acid (GA) on β-lactoglobulin (βLG) at ...
DOI:
10.1016/j.foodhyd.2022.107578
CHORUS:
10.1016/j.foodhyd.2022.107578

5. Quantification of Phytochemicals, Cellular Antioxidant Activities and Antiproliferative Activities of Raw and Roasted American Pistachios (Pistacia vera L.)

Author:
Wang Yuan; Bisheng Zheng; Tong Li; Rui Hai Liu
Source:
Nutrients 2022 v.14 no.15 pp. -
ISSN:
2072-6643
Subject:
2,5-dihydroxybenzoic acid; Pistacia vera; antioxidant activity; antioxidants; breasts; carotenoids; catechin; colorectal neoplasms; dose response; humans; liver; oxidation; pistachios; vitamin E
Abstract:
... The consumption of pistachios has been linked to many potential health benefits. Phytochemicals in pistachios, including phenolics, vitamin E and carotenoids, have been considered to make contributions to the health benefits. The objectives of this study were (1) to explore the phytochemical profiles (total phenolics and total flavonoids, including both free and bound forms), selected phytochemica ...
DOI:
10.3390/nu14153002

6. 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

7. Design, synthesis and characterization of lysozyme–gentisic acid dual-functional conjugates with antibacterial/antioxidant activities

Author:
Hui Li; Yanxiong Pan; Chun Li; Zhongyu Yang; Jiajia Rao; Bingcan Chen
Source:
Food chemistry 2022 v.370 pp. 131032
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; antioxidants; chemical bonding; food chemistry; food industry; food waste; functional foods; lipid peroxidation; lysozyme; particle size
Abstract:
... Both microbiological and chemical food spoilages remain to be the major challenges in the food industry's efforts to combat food waste and loss because of the lack of high efficacy food preservatives. In this study, dual-functional conjugates that simultaneously suppress both lipid oxidation and microorganism growth are fabricated by covalently conjugating natural antioxidant gentisic acid (GA) on ...
DOI:
10.1016/j.foodchem.2021.131032
CHORUS:
10.1016/j.foodchem.2021.131032

8. Determination of Chemical Constituents and Antioxidant Activities of Leaves and Stems from Jatropha cinerea (Ortega) Müll. Arg and Jatropha cordata (Ortega) Müll. Arg

Author:
Yeimi Cecilia Vega-Ruiz; Corina Hayano-Kanashiro; Nohemí Gámez-Meza; Luis Angel Medina-Juárez
Source:
Plants 2021 v.10 no.2 pp. -
ISSN:
2223-7747
Subject:
2,5-dihydroxybenzoic acid; Jatropha cordata; antioxidant activity; antioxidants; catechol; flavonoids; gallic acid; leaves; sap; secondary metabolites; traditional medicine; weather; Mexico
Abstract:
... Jatropha species have been shown to be an important source of secondary metabolites with different biological effects. Jatropha cinerea (Ortega) Müll. Arg and Jatropha cordata (Ortega) Müll. Arg are distributed in the Northwestern region of Mexico, are adapted to extreme weather conditions and are widely used (stems, leaves, and sap) in traditional medicine. The aim of the present study was to car ...
DOI:
10.3390/plants10020212

9. Impact of tomato pomace powder added to extruded snacks on the in vitro gastrointestinal behaviour and stability of bioactive compounds

Author:
Sibel Yagci; Rukiye Calıskan; Zeynep Saliha Gunes; Esra Capanoglu; Merve Tomas
Source:
Food chemistry 2022 v.368 pp. 130847
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; bioavailability; chlorogenic acid; food chemistry; gallic acid; gastrointestinal system; hardness; ingredients; lycopene; nutritive value; protocatechuic acid; quercetin; rutin; tomato pomace; water solubility; water uptake
Abstract:
... In this study, extruded snacks enriched with tomato pomace powder (TPP) at ratios of 5, 10, 15, and 20% (w/w) were prepared based on some preliminary experiments. The effect of tomato pomace addition to extruded snacks on the total phenolic content, total antioxidant capacity, contents of lycopene and phenolics, as well as their in vitro bioaccessibility; and additionally, physical, textural and s ...
DOI:
10.1016/j.foodchem.2021.130847

10. Profiling of Phenolic Compounds Composition, Morphological Traits, and Antioxidant Activity of Miscanthus sacchariflorus L. Accessions

Author:
Bimal Kumar Ghimire; Erik J. Sacks; Seung Hyun Kim; Chang Yeon Yu; Ill Min Chung
Source:
Agronomy 2021 v.11 no.2 pp. -
ISSN:
2073-4395
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; Japan; Miscanthus sacchariflorus; Russia; agronomy; antioxidant activity; antioxidants; biofuels; biomass production; chemical constituents of plants; chlorogenic acid; culms; dietary supplements; ferulic acid; leaves; luteolin; metabolites; oxidants; p-coumaric acid; plant height; quercetin; rutin; China; Korean Peninsula
Abstract:
... Miscanthus sacchariflorus is a potential source of sustainable biofuel and other bioactive compounds. The high adaptive range of M. sacchariflorus may cause variation in its morphological traits and phytochemical composition. Although some metabolites have been reported from M. sacchariflorus, little is known about its phenolic compound composition and antioxidant or oxidant properties. This study ...
DOI:
10.3390/agronomy11020243

11. 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

12. V6a-amylose helical cavity and benzoic acids with para-hydroxyl structure facilitate the formation of inclusion complex

Author:
Haoran Fan; Zhijun Chen; Ruolan Ma; Yangyang Wen; Hongyan Li; Jing Wang; Baoguo Sun
Source:
Carbohydrate polymers 2022 v.298 pp. 120065
ISSN:
0144-8617
Subject:
2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; X-ray diffraction; amylose; antioxidant activity; calorimetry; crystal structure; encapsulation; gallic acid; protocatechuic acid; thermal stability
Abstract:
... Benzoic acids are always unstable during thermal processing. Herein, effects of typical molecular structure of benzoic acids and V-amylose on the formation and thermostability of inclusion complexes were investigated. Interestingly, the helical structure of six V-amylose transformed to V₆ₐ-amylose after complexing with four benzoic acids. Encapsulation efficiency (EE) and loading efficiency (LE) r ...
DOI:
10.1016/j.carbpol.2022.120065

13. Bioactivities and phenolic constituents relationship of Muğla thyme and pine honey of Turkey with the chemometric approach

Author:
Yusuf Sıcak; Ayşe Şahin-Yağlıoğlu; Mehmet Öztürk
Source:
Journal of food measurement & characterization 2021 v.15 no.4 pp. 3694-3707
ISSN:
2193-4126
Subject:
2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; alpha-tocopherol; anti-inflammatory activity; antioxidant activity; antioxidants; brain; breasts; butylated hydroxytoluene; chemometrics; chlorogenic acid; cholinesterase; cinnamic acid; colon; ethyl acetate; fluorouracil; fumaric acid; honey; measurement; neoplasm cells; odors; protocatechuic acid; salicylic acid; syringic acid; taste; therapeutics; thyme; urease; vanillic acid
Abstract:
... The chemical ingredients of pine and thyme honey were studied, along with their medicinal activity properties. A method was validated for common honey compounds using LC-TOF/MS to analyze the ingredients. In vitro antiproliferative, antioxidant, anticholinesterase, anti-inflammatory, tyrosinase inhibitory, and urease inhibitory activities were used to investigate the therapeutic potentials. The an ...
DOI:
10.1007/s11694-021-00940-8

14. Comparison of Phenolic Compounds, Carotenoids, Amino Acid Composition, In Vitro Antioxidant and Anti-Diabetic Activities in the Leaves of Seven Cowpea (Vigna unguiculata) Cultivars

Author:
Mapula R. Moloto; Anh Dao T. Phan; Jerry L. Shai; Yasmina Sultanbawa; Dharini Sivakumar
Source:
Foods 2020 v.9 no.9 pp. -
ISSN:
2304-8158
Subject:
2,5-dihydroxybenzoic acid; Vigna unguiculata; alpha-amylase; amino acid composition; antioxidant activity; antioxidants; assays; correlation; cowpeas; cultivars; cytotoxicity; essential amino acids; functional foods; gene expression; genotype; glucose transporters; glycemic effect; information; ingredients; insulin; leaf extracts; leaves; lutein; metabolites; myocytes; nutrition; quercetin; risk reduction; skeletal muscle; Sub-Saharan Africa
Abstract:
... Cowpea is a well-known nutrition rich African leafy vegetable that has potential to sustain food and nutrition insecurity in sub-Saharan Africa. Consumption of cowpea legumes is associated with reduced risk of type 2 diabetes mellitus. Therefore, the present study was designed to evaluate the (i) variation in phenolic metabolites in seven cowpea cultivars (VOP1, VOP2, VOP3, VOP4, VOP5, VOP7, and V ...
DOI:
10.3390/foods9091285

15. Elderberry (Sambucus nigra L.) as potential source of antioxidants. Characterization, optimization of extraction parameters and bioactive properties

Author:
Rubén Domínguez; Leilei Zhang; Gabriele Rocchetti; Luigi Lucini; Mirian Pateiro; Paulo E.S. Munekata; José M. Lorenzo
Source:
Food chemistry 2020 v.330 pp. 127266
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; Sambucus nigra; anthocyanins; antioxidant activity; antioxidants; carotenoids; elderberries; ethanol; experimental design; gallic acid; nutritive value; pH; polyunsaturated fatty acids; proteins; quercetin; response surface methodology; rutin; temperature; total soluble solids
Abstract:
... The present study aimed to characterize the nutritional value and potential use of elderberries as a source of antioxidant compounds. The chemical composition, fatty acids and phenolic compounds were determined for elderberries. The optimization of extraction parameters was designed with a Box-Behnken design coupled with response surface methodology (RSM) and desirability function analysis. The pr ...
DOI:
10.1016/j.foodchem.2020.127266

16. Ganoderma carnosum and Ganoderma pfeifferi: Metal concentration, phenolic content, and biological activity

Author:
Omer Umit Yalcin; Cengiz Sarikurkcu; Mustafa Cengiz; Halil Gungor; Sanja Ćavar Zeljković
Source:
Mycologia 2020 v.112 no.1 pp. 1-8
ISSN:
1557-2536
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; chemical analysis; enzyme inhibition; flavonoids; vanillic acid
Abstract:
... Medicinal Ganoderma mushrooms have long tradition in Asia, and recently they began to be consumed in Europe as well. Among hundreds of Ganoderma species, only a few of them are intensively investigated, i.e., G. lucidum and G. applanatum, whereas the chemistry and bioactivities of the other species, especially of European origin, still remain unknown. This study comprises detailed chemical analysi ...
DOI:
10.1080/00275514.2019.1689748

17. 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

18. 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

19. 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

20. Improving Antioxidant Activity of β-Lactoglobulin by Nature-Inspired Conjugation with Gentisic Acid

Author:
Hui Li; Yanxiong Pan; Zhongyu Yang; Jiajia Rao; Bingcan Chen
Source:
Journal of agricultural and food chemistry 2019 v.67 no.42 pp. 11741-11751
ISSN:
1520-5118
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Fourier transform infrared spectroscopy; absorption; amino acids; antioxidant activity; antioxidants; beta-lactoglobulin; biocompatibility; biopolymers; chemical bonding; circular dichroism spectroscopy; electron paramagnetic resonance spectroscopy; free radicals; mass spectrometry; monitoring; protein secondary structure; ultraviolet radiation
Abstract:
... Dietary phenolic compounds display strong antioxidant capabilities but face limited practical applications as a result of their poor biocompatibility (high immune resistance). Some food proteins possess mild antioxidant capabilities but are often not sufficient to maintain a reactive oxidative species balance. In this study, we overcome these barriers by covalently conjugating a natural phenolic a ...
DOI:
10.1021/acs.jafc.9b05304
CHORUS:
10.1021/acs.jafc.9b05304

21. Metabolic profiling, antioxidant, and antibacterial activity of some Iranian Verbascum L. species

Author:
Mohammad Selseleh; Samad Nejad Ebrahimi; Atousa Aliahmadi; Ali Sonboli; Mohammad Hossein Mirjalili
Source:
Industrial crops and products 2020 v.153 pp. 112609
ISSN:
0926-6690
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Staphylococcus aureus; Verbascum densiflorum; Verbascum sinuatum; Verbascum songaricum; Verbascum speciosum; Verbascum thapsus; air drying; antibacterial properties; antioxidant activity; antioxidants; bacteria; computer simulation; ethyl acetate; farming systems; ferulic acid; flowering; fluorescence recovery after photobleaching; fractionation; hexane; iridoids; liquid chromatography; maceration; mass spectrometry; medicinal plants; metabolites; metabolomics; methanol; p-coumaric acid; pharmaceutical industry; pharmacology; plant extracts; protocatechuic acid; quercetin; rosmarinic acid; rutin; salicylic acid; Iran
Abstract:
... The first step in introducing a medicinal plant into farming systems and industrial pharmacology is the realization of its metabolic profile and biological features. In the present study, ten Verbascum species including V. cheirantifolium, V. erianthum, V. macrocarpum, V. punalense, V. sinuatum, V. songaricum, V. speciosum, V. stachidiforme, V. thapsus, and V. densiflorum were collected from Iran ...
DOI:
10.1016/j.indcrop.2020.112609

22. Millets: a cereal grain with potent antioxidants and health benefits

Author:
Pinderpal Kaur; Sukhvinder Singh Purewal; Kawaljit Singh Sandhu; Maninder Kaur; Raj Kumar Salar
Source:
Journal of food measurement & characterization 2019 v.13 no.1 pp. 793-806
ISSN:
2193-4126
Subject:
2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; DNA; Eleusine coracana; Panicum sumatrense; Pennisetum glaucum; Setaria italica; antioxidant activity; antioxidants; ascorbic acid; bioactive compounds; caffeic acid; carotenoids; catechin; chlorogenic acid; depolymerization; ellagic acid; epicatechin; ferulic acid; flavor; foods; gallic acid; health promotion; heat treatment; millets; minerals; nutritive value; p-coumaric acid; shelf life; sinapic acid; syringic acid; taste; temperature; texture; thermosensitivity
Abstract:
... Millet grains are small seeded Kharif crop used as food and feed. Due to presence of bioactive compounds and important minerals, millets have their own importance among cereal grains. Finger millet is a mixture of gallic acid; p-hydroxybenzoic acid; gentisic acid; caffeic acid; syringic acid; p-coumaric acid; sinapic acid; salicylic acid; trans-cinnamic acid. Foxtail millet contains gallic acid; p ...
DOI:
10.1007/s11694-018-9992-0

23. A review on gentisic acid as a plant derived phenolic acid and metabolite of aspirin: Comprehensive pharmacology, toxicology, and some pharmaceutical aspects

Author:
Farshad Abedi; Bibi Marjan Razavi; Hossein Hosseinzadeh
Source:
Phytotherapy research 2020 v.34 no.4 pp. 729-741
ISSN:
0951-418X
Subject:
2,5-dihydroxybenzoic acid; Citrus; Gentiana; Helianthus tuberosus; Hibiscus rosa-sinensis; Momordica charantia; Olea europaea; Pterocarpus santalinus; Sesamum indicum; Vitis vinifera; antioxidant activity; apples; aspirin; avocados; fruits; human health; in vitro studies; kiwifruit; metabolites; mushrooms; pears; pharmacokinetics; plums; small fruits; therapeutics; toxicity; toxicology
Abstract:
... Beneficial therapeutic effects of phenolic acids have been proven in various research projects including in vivo and in vitro studies. Gentisic acid (GA) is a phenolic acid that has been associated with useful effects on human health, such as antiinflammatory, antigenotoxic, hepatoprotective, neuroprotective, antimicrobial, and especially antioxidant activities. It is an important metabolite of as ...
DOI:
10.1002/ptr.6573

24. 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

25. Bound phenolic compounds and antioxidant properties of whole grain and bran of white, red and black rice

Author:
Yuehan Pang; Sulaiman Ahmed; Yanjie Xu; Trust Beta; Zhiwei Zhu; Yafang Shao; Jinsong Bao
Source:
Food chemistry 2018 v.240 pp. 212-221
ISSN:
0308-8146
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; black rice; bran; color; ferulic acid; gallic acid; p-coumaric acid; phytopharmaceuticals; protocatechuic acid; sinapic acid; vanillic acid; whole grain foods
Abstract:
... Total phenolic content (TPC), individual phenolic acid and antioxidant capacity of whole grain and bran fraction 18 rices with different bran color were investigated. The levels of TPC in bound fractions were significantly higher than those in the free fractions either in the whole grains or brans. The main bound phenolic acids in white rice samples were ferulic acid, p-coumaric acid, and isoferul ...
DOI:
10.1016/j.foodchem.2017.07.095

26. Carbohydrates, volatile and phenolic compounds composition, and antioxidant activity of calabura (Muntingia calabura L.) fruit

Author:
Gustavo Araujo Pereira; Henrique Silvano Arruda; Damila Rodrigues de Morais; Marcos Nogueira Eberlin; Glaucia Maria Pastore
Source:
Food research international 2018 v.108 pp. 264-273
ISSN:
0963-9969
Subject:
2,5-dihydroxybenzoic acid; Muntingia calabura; antioxidant activity; bioactive compounds; caffeic acid; catechin; color; energy; epigallocatechin; esterification; flavor; food industry; fructose; fruits; functional foods; gallic acid; gas chromatography-mass spectrometry; glucose; glycosylation; naringenin; polyols; protocatechuic acid; quercetin; solid phase microextraction; tandem mass spectrometry; terpenoids; volatile compounds
Abstract:
... Soluble carbohydrates, volatile and phenolic compounds from calabura fruit as well as its antioxidant activity were assessed. The low amount of fermentable oligo-, di-, and monosaccharides and polyols (FODMAPs) and similar amount of glucose and fructose allow us to classify the calabura berry as low-FODMAPs. The terpenes β-Farnesene and dendrolasin identified by SPME-GC-MS were the major volatile ...
DOI:
10.1016/j.foodres.2018.03.046

27. 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

28. HPLC Analysis and Antioxidant Properties of Algerian Lepidium draba Ethyl acetate Extract

Author:
Bensaid Sara Ouissem; Bicha Sabrina; Benmekhebi Lotfi; Rebbas Khellaf; Bensouici Chawki; Demirtas Ibrahim; Benayache Samir; Benayache Fadila
Source:
Journal of Biologically Active Products from Nature 2018 v.8 no.4 pp. 265-271
ISSN:
2231-1874
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Lepidium draba; antioxidant activity; antioxidants; caffeic acid; catechin; chlorogenic acid; ethyl acetate; ferulic acid; gallic acid; hesperidin; high performance liquid chromatography; hydroxybenzaldehyde; inhibitory concentration 50; kaempferol; medicinal properties; p-coumaric acid; protocatechuic acid; quercetin; rosmarinic acid; rutin; vanillic acid
Abstract:
... The aim of this study was to identify and quantify the phenolic compounds of the Ethyl acetate extract from Lepidium draba using HPLC-TOF/MS; and to investigate the antioxidant potencies. In this work, we have found that the Ethyl acetate soluble fraction of L. draba is a good source of antioxidant, which is the result of its phenolic acids and flavonoids. Five methods were conducted, to determine ...
DOI:
10.1080/22311866.2018.1511381

29. Improvement of the Antioxidative Activity of Soluble Phenolic Compounds in Chickpea by Germination

Author:
Minwei Xu; Zhao Jin; Jae-Bom Ohm; Paul Schwarz; Jiajia Rao; Bingcan Chen
Source:
Journal of agricultural and food chemistry 2018 v.66 no.24 pp. 6179-6187
ISSN:
1520-5118
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; chickpeas; emulsions; gel chromatography; germination; in vitro studies; mass spectrometry; molecular weight; protocatechuic acid; refractive index
Abstract:
... Our recent study found that antioxidative activity of phenolic compounds extracted from germinated chickpea was boosted in both in vitro assays and oil-in-water emulsions [Xu et al. Food Chem.2018, 250, 140]. The purpose of this study was to elucidate the mechanism by which germination enhances the antioxidative activity of the phenolic compounds extracted from chickpea. Liquid chromatography coup ...
DOI:
10.1021/acs.jafc.8b02208
CHORUS:
10.1021/acs.jafc.8b02208

30. 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

31. Assessment of the bioactive phenolic composition of Acer truncatum seed coat as a byproduct of seed oil

Author:
Hang Fan; Liwei Sun; Lingguang Yang; Jinchi Zhou; Peipei Yin; Ke Li; Qiang Xue; Xiang Li; Yujun Liu
Source:
Industrial crops and products 2018 v.118 pp. 11-19
ISSN:
0926-6690
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Acer truncatum; acetone; antioxidant activity; antioxidants; byproducts; epicatechin; ethanol; manufacturing; naringenin; proanthocyanidins; procyanidins; seed coat; seed oils; tannins; wastes
Abstract:
... Acer truncatum seed coat is generally abandoned as waste during the process of manufacturing seed oil due to a lack of knowledge of the phytochemical composition of this byproduct. It is well known that brown-colored seed coat is rich in polyphenols; therefore, we investigated the bioactive phenolic composition of A. truncatum seed coat in this study. To obtain an extract containing most bioactive ...
DOI:
10.1016/j.indcrop.2018.03.030

32. Fresh refrigerated Tuber melanosporum truffle: effect of the storage conditions on the antioxidant profile, antioxidant activity and volatile profile

Author:
Sara Savini; Monica Rosa Loizzo; Rosa Tundis; Massimo Mozzon; Roberta Foligni; Edoardo Longo; Ksenia Morozova; Matteo Scampicchio; Daniel Martin-Vertedor; Emanuele Boselli
Source:
European food research & technology 2017 v.243 no.12 pp. 2255-2263
ISSN:
1438-2377
Subject:
2,5-dihydroxybenzoic acid; Tuber melanosporum; air; aldehydes; antioxidant activity; antioxidants; food research; freshness; mixing; nitrogen; packaging; principal component analysis; shelf life; storage time; truffles; volatile compounds
Abstract:
... The antioxidant properties of fresh black truffles (Tuber melanosporum) (T.) refrigerated at 4 °C under different packaging conditions: air atmosphere (A), reduced pressure (V), mix 1% O₂/99% N₂ (ON) and mix 40% CO₂/60% N₂ (CN) were evaluated during 28 days of storage. The results were compared with the volatile fingerprint determined by SPME-GC/MS and with the phenolic antioxidants characterized ...
DOI:
10.1007/s00217-017-2927-x

33. 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

34. Bioaccessibility and antioxidant activity of phenolic compounds in frozen pulps of Brazilian exotic fruits exposed to simulated gastrointestinal conditions

Author:
Rodrigo Luiz Targino Dutra; Aline Macedo Dantas; Débora de Araújo Marques; Jéssica Dayanne Ferreira Batista; Bruno Raniere Lins de Albuquerque Meireles; Ângela Maria Tribuzy de Magalhães Cordeiro; Marciane Magnani; Graciele da Silva Campelo Borges
Source:
Food research international 2017 v.100 pp. 650-657
ISSN:
0963-9969
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; bioavailability; gallic acid; gastrointestinal system; introduced plants; iron; pulp
Abstract:
... This study characterized the phenolic profile in siriguela, umbu-cajá and mangaba, as well in their frozen pulps (FPs). The bioaccessibility of phenolic compounds and the antioxidant activity of the FP dialysates were determined following exposure to simulated gastrointestinal conditions. The profile of phenolic compounds identified in fruit and FPs were relatively similar. After pulp processing, ...
DOI:
10.1016/j.foodres.2017.07.047

35. Comparative phenolic compound profiles and antioxidative activity of the fruit, leaves, and roots of Korean ginseng (Panax ginseng Meyer) according to cultivation years

Author:
Ill-Min Chung; Ju-Jin Lim; Mun-Seob Ahn; Haet-Nim Jeong; Tae-Jin An; Seung-Hyun Kim
Source:
Journal of Ginseng Research 2016 v.40 no.1 pp. 68-75
ISSN:
1226-8453
Subject:
2,5-dihydroxybenzoic acid; Panax ginseng; antioxidant activity; chlorogenic acid; ferulic acid; fruits; p-coumaric acid; phenol; research; rutin; ultra-performance liquid chromatography
Abstract:
... The study of phenolic compounds profiles and antioxidative activity in ginseng fruit, leaves, and roots with respect to cultivation years, and has been little reported to date. Hence, this study examined the phenolic compounds profiles and 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free-radical-scavenging activities in the fruit, leaves, and roots of Korean ginseng (Panax ginseng Meyer) as a function o ...
DOI:
10.1016/j.jgr.2015.05.006

36. Physical, mechanical and antioxidant properties of chitosan films grafted with different hydroxybenzoic acids

Author:
Jun Liu; Shuang Liu; Yao Chen; Liang Zhang; Juan Kan; Changhai Jin
Source:
Food hydrocolloids 2017 v.71 pp. 176-186
ISSN:
0268-005X
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; antioxidant activity; chitosan; crystal structure; gallic acid; hydrocolloids; protocatechuic acid; syringic acid; tensile strength; ultraviolet radiation; vanillic acid
Abstract:
... Five kinds of hydroxybenzoic acids including gallic acid (GLA), gentisic acid (GTA), protocatechuic acid (PA), syringic acid (SA) and vanillic acid (VA) were grafted onto chitosan (CS) through carbodiimide mediated coupling reaction. The obtained CS derivatives were further developed into films by casting. The physical, mechanical and antioxidant properties of hydroxybenzoic acid-g-CS films were c ...
DOI:
10.1016/j.foodhyd.2017.05.019

37. 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

38. Effect of hydroxybenzoic acids antioxidants on the oxidative stability of sardine oil

Author:
Vaisali Chandrasekar; Prasanna D. Belur; I. Regupathi
Source:
Resource-efficient technologies 2016 v.2 pp. S114
ISSN:
2405-6537
Subject:
2,5-dihydroxybenzoic acid; antioxidant activity; antioxidants; benzoic acid; hydroxylation; lipids; oxidative stability; p-anisidine value; peroxide value; sardine oil; thiobarbituric acid-reactive substances; vanillic acid
Abstract:
... The antioxidant capacities of three derivatives of hydroxybenzoic acids (Gentisic acid, protochatechuic acid and vanillic acid) in sardine oil were compared. Peroxide value, conjugated diene value, p-anisidine value and thiobarbituric acid reactive substances (TBARS) value were assessed to determine the oxidative stability provided by these substances to the sardine oil. Results showed that gentis ...
DOI:
10.1016/j.reffit.2016.11.008

39. 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

40. 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

41. In vitro antioxidant and inhibitory activity of water decoctions of carob tree (Ceratonia siliqua L.) on cholinesterases, α-amylase and α-glucosidase

Author:
Luísa Custódio; João Patarra; Fernando Alberício; Nuno Rosa Neng; José Manuel Florêncio Nogueira; Anabela Romano
Source:
Natural product research 2015 v.29 no.22 pp. 2155-2159
ISSN:
1478-6427
Subject:
2,5-dihydroxybenzoic acid; Ceratonia siliqua; acetylcholinesterase; alpha-amylase; alpha-glucosidase; antioxidant activity; antioxidants; bark; carob; flour; gallic acid; high performance liquid chromatography; leaves; locust bean gum; pulp; trees
Abstract:
... This work reports the in vitro inhibitory activity of water decoctions of leaves, germ flour, pulp, locust bean gum and stem bark of carob tree on α-amylase, α-glucosidase, acetylcholinesterase and butyrylcholinesterase. The antioxidant activity and the chemical characterisation of the extracts made by spectrophotometric assays and by high-performance liquid chromatography are also reported. Leave ...
DOI:
10.1080/14786419.2014.996147

42. Phenolic composition and antioxidant properties of Pleurotus ostreatus and Pleurotus eryngii enriched with selenium and zinc

Author:
Monika Gąsecka; Mirosław Mleczek; Marek Siwulski; Przemysław Niedzielski
Source:
European food research & technology 2016 v.242 no.5 pp. 723-732
ISSN:
1438-2377
Subject:
2,5-dihydroxybenzoic acid; Pleurotus eryngii; Pleurotus ostreatus; antioxidant activity; ascorbic acid; food research; fruiting bodies; mushrooms; naringenin; selenium; zinc
Abstract:
... The aim of the study was to investigate the antioxidant properties, phenolic and flavonoid contents and composition and content of ascorbic acid in Pleurotus ostreatus and Pleurotus eryngii enriched simultaneously with selenium (Se) and zinc (Zn). Non-enriched mushrooms contained Se and Zn at the level as in the most popular mushrooms. The total phenolic content (TPC) for non-enriched P. ostreatus ...
DOI:
10.1007/s00217-015-2580-1

43. 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

44. Antioxidant and Anti‐inflammatory Activities of Methanol Extracts of Tremella fuciformis and Its Major Phenolic Acids

Author:
Hua Li; Hee‐Seok Lee; Su‐Hwan Kim; BoKyung Moon; Chan Lee
Source:
Journal of food science 2014 v.79 no.4 pp. C460
ISSN:
0022-1147
Subject:
2,5-dihydroxybenzoic acid; Tremella fuciformis; antioxidant activity; chloroform; free radical scavengers; low density lipoprotein; methanol; mushrooms; nitric oxide; nitric oxide synthase; oxidation
Abstract:
... Methanol extract subfractions of the edible white jelly mushroom (Tremella fuciformis), were assessed for the following antioxidant properties: ABTS⁺ radical scavenging activity, 1,1‐diphenyl‐2‐picrylhydrazyl (DPPH) radical scavenging activity, and inhibitory activity of human low‐density lipoprotein (LDL) oxidation. Among the subfractions tested, the chloroform subfraction exhibited the strongest ...
DOI:
10.1111/1750-3841.12393
PubMed:
24547933

45. Integrated sunflower-based biorefinery for the production of antioxidants, protein isolate and poly(3-hydroxybutyrate)

Author:
Vasiliki Kachrimanidou; Nikolaos Kopsahelis; Maria Alexandri; Androniki Strati; Chryssavgi Gardeli; Seraphim Papanikolaou; Michael Komaitis; Ioannis K. Kookos; Apostolis A. Koutinas
Source:
Industrial crops and products 2015 v.71 pp. 106-113
ISSN:
0926-6690
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; 3-hydroxybutyric acid; acid deposition; alkali treatment; antioxidant activity; antioxidants; biodiesel; bioreactors; biorefining; chemical precipitation; chlorogenic acid; coproducts; dietary supplements; fermentation; glycerol; high performance liquid chromatography; hydrolysates; hydrolysis; industrial byproducts; isoelectric point; protein concentrates; protein isolates; streams; sunflower meal; value added
Abstract:
... Sunflower meal (SFM) has been used for the production of an antioxidant-rich fraction, protein isolate and nutrient-rich fermentation supplements. Suspension of SFM in water led to the production of a lignocellulose-rich fraction and a protein concentrate fraction. The ethanolic extract from the SFM showed high antioxidant activity, as it was measured by the DPPH (1,1-diphenyl-2-picrylhydrazyl rad ...
DOI:
10.1016/j.indcrop.2015.03.003

46. Larvicidal activity, phytochemical composition, and antioxidant properties of different parts of five populations of Ricinus communis L.

Author:
Ghnimi Wafa; Dicko Amadou; Khouja Mohamed Larbi; El Ferchichi Ouarda Héla
Source:
Industrial crops and products 2014 v.56 pp. 43-51
ISSN:
0926-6690
Subject:
2,5-dihydroxybenzoic acid; Culex pipiens; Ricinus communis; antioxidant activity; catechin; fatty acid methyl esters; gallic acid; gas chromatography-mass spectrometry; inhibitory concentration 50; larvae; larvicides; leaf extracts; leaves; lethal concentration 50; mortality; oils; proanthocyanidins; reversed-phase high performance liquid chromatography; roots; rutin; seed extracts; seeds; vanillic acid
Abstract:
... This study was conducted to evaluate, the phytochemical composition of leaves and roots of five Tunisian populations of castor (Ricinus communis L.). Levels of total phenolic contents, total flavonoids, and condensed tannins of methanolic extracts were determined by UV-spectrophotometer. Phenolic compounds were identified and quantified by RP-HPLC (reverse phase HPLC). Gentisic acid, catechin, rut ...
DOI:
10.1016/j.indcrop.2014.02.036

47. Phenolic Composition and Antioxidant Capacity of Wine Prepared from Custard Apple (Annona squamosa L.) Fruits

Author:
Umesh B. Jagtap; Vishwas A. Bapat
Source:
Journal of food processing and preservation 2015 v.39 no.2 pp. 175-182
ISSN:
0145-8892
Subject:
2,5-dihydroxybenzoic acid; Annona reticulata; Annona squamosa; DNA damage; Saccharomyces cerevisiae; antioxidant activity; caffeic acid; free radicals; fruit wines; fruits; gallic acid; gamma radiation; growers; high performance liquid chromatography; in vitro studies; income; nutritive value; p-coumaric acid; plasmids; postharvest losses; protocatechuic acid; value-added products; wine industry; yeasts
Abstract:
... The objectives of this study were to evaluate the potential of custard apple (Annona squamosa L.) in the production of a beverage fermented using Saccharomyces cerevisiae (NCIM 3282) yeast and assess the antioxidant capacity, total phenolic content and DNA damage‐protecting activity of custard apple fruit wine (CAFW). The antiradical activities of CAFW were measured using DPPH, FRAP and DMPD scave ...
DOI:
10.1111/jfpp.12219

48. Phenolic Profiles and Total Antioxidant Capacity of Marketed Beers in Serbia

Author:
Snežana S. Mitić; Dušan Đ. Paunović; Aleksandra N. Pavlović; Snežana B. Tošić; Milan B. Stojković; Milan N. Mitić
Source:
International journal of food properties 2014 v.17 no.4 pp. 908-922
ISSN:
1094-2912
Subject:
2,5-dihydroxybenzoic acid; 4-hydroxybenzoic acid; aluminum chloride; antioxidant activity; beers; caffeic acid; drinking; ferulic acid; flavonoids; food quality; free radical scavengers; gallic acid; high performance liquid chromatography; p-coumaric acid; people; protocatechuic acid; sinapic acid; syringic acid; vanillic acid; Serbia
Abstract:
... The aim of this research was to determine the total phenolic and flavonoid contents as well as to measure antioxidant activity of 24 different commercial beers consumed in Serbia. The major phenolic acids (gallic acid, protocatechuic acid, 4-hydroxybenzoic acid, 2,5-dihydroxybenzoic acid, vanillic acid, caffeic acid, syringic acid, p-coumaric acid, ferulic acid, sinapic acid, salicylic), (+)-catec ...
DOI:
10.1080/10942912.2012.680223

49. Phenolic composition, antioxidant potential and in vitro inhibitory activity of leaves and acorns of Quercus suber on key enzymes relevant for hyperglycemia and Alzheimer's disease

Author:
Luísa Custódio; João Patarra; Fernando Alberício; Nuno da Rosa Neng; José Manuel Florêncio Nogueira; Anabela Romano
Source:
Industrial crops and products 2015 v.64 pp. 45-51
ISSN:
0926-6690
Subject:
2,2-diphenyl-1-picrylhydrazyl; 2,5-dihydroxybenzoic acid; Alzheimer disease; Quercus suber; acarbose; acetylcholinesterase; alpha-amylase; alpha-glucosidase; antioxidant activity; antioxidants; bakers yeast; cholinesterase; diabetes; flavonoids; fruits; hexane; high performance liquid chromatography; hyperglycemia; leaf extracts; leaves; methanol; tannins
Abstract:
... This work reports the in vitro antioxidant and inhibitory activities of hexane, methanol and water extracts of cork oak (Quercus suber) against acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), α-amylase and α-glucosidase. The total content of phenolics (TPC), tannins (TTC) and flavonoids (TFC), and the HPLC profile of the main phenolic compounds present in the extracts, were also determ ...
DOI:
10.1016/j.indcrop.2014.11.001

50. 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