Relevant bibliographies by topics / Antioxydant properties

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Academic literature on the topic 'Antioxydant properties'

Author: Grafiati
Published: 4 May 2024

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Journal articles on the topic "Antioxydant properties"

1

Voloboy, N. L., Ya F. Zverev, V. M. Bryukhanov, et al. "Antioxydant and prooxydant effects of arbutin and hydrohinon in experiment in vitro." Bulletin of Siberian Medicine 10, no. 5 (2011): 41–44. http://dx.doi.org/10.20538/1682-0363-2011-5-41-44.

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The object of research is to compare antioxidant and prooxydant activity of arbutin and hydrochinon in vitro. Antioxidant and prooxydant activity of arbutin and hydrochinon is estimed of their ability to suppress/ induct oxydation ТВИН-80. Arbutin and hydrochinon have antioxydant and prooxydant properties. The conclusions are, that hydrochinon is more antioxydant, arbutin is more prooxydant.
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2

Noumedem, Jaurès A. K., Doriane E. Djeussi, Gerald Ngo Teke, Jean D. Tamokou, and Jules R. Kuiate. "Antibacterial, antioxydant and antidiarrheal properties of Tristemma hirtum P. beauv." Investigational Medicinal Chemistry and Pharmacology 3, no. 1 (2020): 1–7. http://dx.doi.org/10.31183/imcp.2020.00040.

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3

Boisfer, E., D. Stengel, D. Pastier, et al. "Human apolipoprotein A-II expression in mice decreases antioxydant properties of HDL." Atherosclerosis Supplements 2, no. 2 (2001): 72. http://dx.doi.org/10.1016/s1567-5688(01)80155-0.

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4

ALLAOUI, Amine, Khadidja ZOUD, Moncef NASRI, and Ahmed BOUALGA. "Antioxidant properties of ultrafiltration membrane fractions obtained from fenugreek (Trigonella foenum-graecum) proteins hydrolysates." Nutrition & Santé 07, no. 02 (2019): 78–85. http://dx.doi.org/10.30952/ns.7.2.5.

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5

Mamangkey, Jendri, Dwi Suryanto, Erman Munir, and Apon Zaenal Mustopa. "Antibacterial and Antioxidant Activity of Newly Keratinolytic Bacteria, Azotobacter chroococcum B4." International Journal of PharmTech Research 13, no. 2 (2020): 123–27. http://dx.doi.org/10.20902/ijptr.2019.130215.

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Keratinolyticbacteria of A. chrocoocum B4 was evaluated for its potential of antibacterial and antioxidant activity. Kirby-Bauer method was used to know antibacterial potential of B4 againtsStaphylococcus aureus, S. epidermidis, Bacillus cereus, Bacillus pumilus, Bacillus subtilis, Listeria monocytogenes, Proteus sp., enteropathogenicEscherichia coli, Enterobactersakazakii, and Salmonella enterica. Antioxydant test was done using DPPH radical scavenging activity assay with ascorbic acid as a controll. In this study, hydrolysate of pellet, dialysis, and fraction 25 of B4 keratinase purification of previous study was used for antibacterial and antioxidant test. The result showed that B4 hydrolysatesinhibited Gram positive pathogenic bacteria such as Staphylococcus aureus and Listeria monocytogenes, and Gram negative Enterobacter sakazakii. All hydrolysates showed to have antioxidant properties in which fraction 25 showed higher compared to that of others. This study showed poultry waste-derived keratinase of B4 might be useful as supplementary protein, antibacterial, and antioxidant in the animal feed formulations.
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Pozdnyakov DI, Pozdnyakov, Voronkov Voronkov AV, Zolotych Zolotych DS, and Arlt Arlt AV. "Antioxydant and Endotheliotropic Properties 4-Hydroxy-3,5-Di-Tret-Butyl Cinnamic Acid under Conditions of Experimental Brain Ischemia." Journal of Young Pharmacists 10, no. 2 (2018): 193–96. http://dx.doi.org/10.5530/jyp.2018.10.43.

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7

Nana, Olga, Jean Momeni, Fabrice Fekam Boyom, and Martin Benoît Ngassoum. "Influence of microwave assisted extraction on antioxidant and antiplasmodial activities of Trichilia roka extracts." Journal of Phytopharmacology 4, no. 5 (2015): 248–52. http://dx.doi.org/10.31254/phyto.2015.4502.

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Antiplasmodial and antioxidant activities of extracts derived from Trichilia roka (Chiov) (Meliaceae) root bark were determined respectively in vitro and using two methods as well as 1,1-diphenyl-2-picrylhydrazyl radicalscavenging and β-carotene-linoleate model systems. The microwave assisted extraction extract was more effective concern antioxydant activity than the antiplasmodial activity compare to conventional mechanical agitation extraction method. Extracts obtained by microwave assisted extraction showed a high total polyphenol content of 126766 μg Equivalent of Gallic acid /g Dry Mater and a total flavonoid content of 789.22 μg Equivalent of Quercetin/g dry mater but a low antiplasmodial activity with and inhibition concentration of 48.386 μg /mL and 23.983 μg/mL for mechanical agitation extract. The evaluation of the antioxidant properties of the two extracts showed that those obtained by microwave assisted extraction shown in the 1,1-diphenyl-2-picrylhydrazyl assay and in the β-carotene bleaching test, the highest antioxidant activity respectively, with an antioxidant activity of 82.12% and with a radical-scavenging activity with inhibition percentage of 88.78%..
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8

Comlekcioglu, Nazan, Rıdvan Cirak, Akide Karmis, and Ashabil Aygan. "Evaluation of the chemical composition and biological activities of medicinal plants Alkanna tinctoria and Teucrium polium from Turkey." Croatian journal of food science and technology 14, no. 1 (2022): 52–62. http://dx.doi.org/10.17508/cjfst.2022.14.1.06.

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Since ancient times, natural products from various plants have been used for the treatment of different diseases. Alkanna and Teucrium species have been considered medicinal plants and are used popularly around the world. So, investigating the pharmaceutical properties of these plants has been the subject of interest for many researchers. In this work, total phenolic and flavonoid content, antioxydant, antimicrobial activity and in vitro enzyme inhibition properties of Alkanna tinctoria and Teucrium polium ethanol and methanol extracts were investigated. Additionally, GC-MS analyses of oil composition of the plant extracts were performed and 21 different fatty acids were identified in A. tinctoria and 18 in T. polium. Palmitic acid was the major component in A. tinctoria and saturated fatty acids constitutes a large part of the oil composistion. On the other hand, linoleic acid was the major fatty acid in T. polium and unsaturated fatty acids constitutes a large part of the oil composition. According to the results, methanol was more effective than the ethanol for the extraction of bioactive components. Both of the extracts showed a good antioxidant activity and the inhibition of bacteria and yeasts. Slight inhibitory activity of A. tinctoria and protective action of T. polium on enzyme with other results indicate that these plant extracts have potential to control microorganisms which can be promising for food industry.
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9

Weyepe Lah, Fidèle Castro, Marius Balemaken Missi, Natasha October, et al. "Antibacterial and Antioxidant Activities of the Extract and Some Flavonoids From Aerial Parts of Echinops Gracilis O. Hoffm. (Asteraceae)." Natural Product Communications 16, no. 3 (2021): 1934578X2199915. http://dx.doi.org/10.1177/1934578x21999151.

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Mortality due to microbial diseases continues to be a major problem in many developing countries. The present study aims to evaluate the antibacterial and antioxidant activities of the ethyl acetate extract and some isolated compounds from aerial parts of Echinops gracilis. The phytochemical study resulted in the isolation of a new flavonoid derivative named apigenin-7- O-(4″-feruloyl)-β-D-glucoside (1), together with 2 known compounds: apigenin -7-O-(4″-trans- p-hydroxycinnamoyl) -β-D-glucoside (2), and apigenin -7-O-glucoside (3). Their chemical structures were determined using a combination of NMR and IR spectroscopic and MS techniques, as well as by comparison with literature data. The extract and isolates were evaluated for their antibacterial and antioxydant properties. The EtOAc extract and compounds 1 and 2 showed the ability to scavenge 2,2′-zino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) radical cation (ABTS) with scavenging concentration (SC50) values of 13.6 ± 0.8 µg/mL, 108.2 ± 4.3 µg/mL, and 28.5 ± 2.2 µg/mL, respectively. In addition, compound 1 displayed significant activity against Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumonia, with minimum inhibition concentration (MIC) values of 31.2, 15.6, and 31.2 µg/mL respectively.
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10

Pincemail, Joël, Mouna-Messaouda Kaci, Claire Kevers, Jessica Tabart, Raymond Ebabe Elle, and Smail Meziane. "PAOT-Liquid® Technology: An Easy Electrochemical Method for Evaluating Antioxidant Capacity of Wines." Diseases 7, no. 1 (2019): 10. http://dx.doi.org/10.3390/diseases7010010.

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Polyphenol compounds present in high quantity in wines are well-known to have potent cardio-protective properties through several biological mechanisms including antioxidant activity [1]. A large number of methods have been developed for evaluating the antioxidant capacity of food matrices. Most of them have, however, the disadvantage of being time consuming and require specific analytical protocols and devices. In the present study, we present the electrochemical PAOT (Pouvoir Antioxydant Total)-Liquid® Technology which can be easily used by winemakers for evaluating antioxidant activity of wine during all steps of making process. The methodology is based on the measurement of electric potential variation resulting from chemical reactions between wine polyphenols and a free radical mediator M• as source of oxidants. Total antioxidant activity as estimated by the PAOT-Liquid® activity was 6.8 fold higher in red wines (n = 14) when compared to rosé (n = 3) and white (n = 3) wines bought in a commercial market. Moreover, PAOT-Liquid® activity was highly correlated with total polyphenols content (TPC) of all wines (r = 0.9540, p < 0.0001) and the classical DPPH (2,2-diphenyl-1-picryhydrazyl) assay which is often used for evaluating antioxidant capacity of food matrices (r = 0.9102, p < 0.0001).
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