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Articles de revues sur le sujet « Antiradical properties »

Auteur : Grafiati
Publié le 4 mai 2022
Mis à jour le 5 mai 2022

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1

Sroka, Zbigniew. "Antioxidative and Antiradical Properties of Plant Phenolics." Zeitschrift für Naturforschung C 60, no. 11-12 (2005): 833–43. http://dx.doi.org/10.1515/znc-2005-11-1204.

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The plant phenolic compounds such as flavonoids, tannins and phenolic acids appeared to be strong antiradical and antioxidant compounds. The number of hydroxy groups and the presence of a 2,3-double bond and orthodiphenolic structure enhance antiradical and antioxidative activity of flavonoids. The glycosylation, blocking the 3-OH group in C-ring, lack of a hydroxy group or the presence of only a methoxy group in B-ring have a decreasing effect on antiradical or antioxidative activity of these compounds. Tannins show strong antioxidative properties. Some tannins in red wine or gallate esters w
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L. B. IRISKINA ,, SH. А. МUZDYBAYEVA ,, М. К. ZHAMANBAEVA ,, A. SH. BUKUNOVA,, and G. К. DAUMOVA. "STUDYING OF ANTI-RADICAL PROPERTIES OF PHENOLS AND HETEROCYCLIC AMINES." Bulletin of the National Engineering Academy of the Republic of Kazakhstan 3, no. 77 (2020): 119–25. http://dx.doi.org/10.47533/2020.1606-146x.18.

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This work presents the results of studies on the antiradical activity of phenols and heterocyclic amines. The antiradical activity was studied using the reaction of interaction with a stable colored radical by spectrophotometric method. The antiradical activity of natural polyphenol quercetin was studied. The content of quercetin in the dosage form was determined. It was shown that the studied phenols are medium strength inhibitors, and heterocyclic amines exhibit weak inhibitory activity.
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Barschak, Alethéa Gatto, Francieli Moro Stefanello, Claiton Leonetti Lencina, Filippo De Simone, and Wilson João Cunico Filho. "Pharmacological Application of Antiradical Compound Properties." BioMed Research International 2013 (2013): 1. http://dx.doi.org/10.1155/2013/989604.

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Pirker, Katharina F., Joana Oliveira, Victor de Freitas, Bernard A. Goodman, and Nuno Mateus. "Antiradical Properties of Red Wine Portisins." Journal of Agricultural and Food Chemistry 59, no. 21 (2011): 11833–37. http://dx.doi.org/10.1021/jf2033126.

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Baidildinova, G., A. Gulyayev, Sh Sergazy, Zh Khassenbekova, T. Nurgozhin, and G. Adilgozhina. "Antiradical Properties of Kazakhstan Honey Types." Clinical Therapeutics 39, no. 8 (2017): e92. http://dx.doi.org/10.1016/j.clinthera.2017.05.288.

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Ratkin, Ye V., V. V. Ivanov, A. V. Ratkin, and V. S. Chuchalin. "Antioxidant and antiradical properties of polyphenols in the mechanism hepatoprotective actions of preparations Maackia amurensis." Bulletin of Siberian Medicine 10, no. 5 (2011): 91–94. http://dx.doi.org/10.20538/1682-0363-2011-5-91-94.

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For finding-out of a role antioxidant and antiradical properties of poly-phenols in mechanisms hepatoprotective actions of preparations from Maackia amurensis activity of preparations from ядровой wood (Macsar), an extract of cellular culture Maackia amurensis, stilbens. Antiradical properties of preparations measured on ability to cooperate with difenilpikrilgidrazilom (DPPH). It is established, that for Macsar, PKMA, monomeasured and dimeric Stilbenes is absent correlations between antiradical activity of the given preparations from a polyphenolic complex Mauck Amur in modelling system with
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Rydzak, Leszek, Zbigniew Kobus, Rafał Nadulski, et al. "Analysis of Selected Physicochemical Properties of Commercial Apple Juices." Processes 8, no. 11 (2020): 1457. http://dx.doi.org/10.3390/pr8111457.

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The paper presents the comparison of quality of six different commercial apple juices produced in Poland. The apple juices came from two different Polish companies. From each manufacturer three various juices were selected: two cloudy and clarified one produced as a mixture of different apple varieties. The following properties were evaluated: density, soluble solid content, viscosity, total phenolic contents, phenolic acid, and antiradical activity. The obtained results showed that three from fourth cloudy juices (M1Sz, M1A and M2A) differed from clarified juices. The highest differences were
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Chiba, Atsushi, Hiromoto Nakanishi, and Shiko Chichibu. "Thermal and Antiradical Properties of Indirect Moxibustion." American Journal of Chinese Medicine 25, no. 03n04 (1997): 281–87. http://dx.doi.org/10.1142/s0192415x97000317.

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The thermal and antiradical properties of indirect moxibustion stimulation were investigated by thermal qualitative and spectroscopic methods. The thermal effect of indirect moxibustion was mainly dependent on the spacing distance between the moxa and skin, and not on the moxa weight. The radical scavenging activities of moxa and moxa-tar were measured by a photometric absorbance method, chemical reaction with 1, 1-diphenyl-2-picrylhydrazyl. The obtained results indicate that the inhibitory effects of moxa and moxa-tar on superoxide production are due to the radical scavenging mechanism.
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Lapkina, E. Z., E. E. Saveleva, and N. A. Bulgakova. "Antiradical properties of selenium-enriched grain seedlings." Вестник Пермского университета. Серия «Биология»=Bulletin of Perm University. Biology, no. 1 (2021): 12–17. http://dx.doi.org/10.17072/1994-9952-2021-1-12-17.

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The results of studies of antiradical activity by the method of DPPG absorption by extracts of rye, wheat, and oat seedlings enriched with selenium from aqueous solutions of sodium Selenite 0.001, 0.005, 0.01, 0.05% concentrations within 24 hours. Selenium inhibits the rate of reaching the "plateau" of the DPPG absorption reaction, but increases the anti-radical activity of grain seedlings. The total content of phenolic compounds in grain extracts was determined spectrophotometrically. The influence of selenium on the growth processes of wheat, rye, and oats is shown. Concentrations of 0.001 a
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Zykova, Irina Dement'yevna, Aleksandr Alekseyevich Efremov, and Liliya Viktorovna Naimushina. "ANTIRADICAL ACTIVITY OF SEPARATE FRACTIONS OF ESSENTIAL OIL OF ACORUS CALAMUS ROOTS." chemistry of plant raw material, no. 2 (June 10, 2020): 73–78. http://dx.doi.org/10.14258/jcprm.2020026659.

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Essential oil from the roots of calamus marsh (Acorus calamus L) was isolated by the method of exhaustive hydroparodistillation, growing on the Krasnoyarsk territory. Separate fractions of essential oil were obtained depending on the duration of isolation. The component composition of the essential oil, the main components of which are acorenone, butyrate α-terpineol, germacrene B, camphor. The antiradical properties of the essential oil of A. сalamus roots growing in the Siberian region, as well as the antiradical properties of its individual fractions were studied for the first time in order
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11

Karamać, M., A. Buciński, B. Pegg R, and R. Amarowicz. "Antioxidant and antiradical activity of ferulates." Czech Journal of Food Sciences 23, No. 2 (2011): 64–68. http://dx.doi.org/10.17221/3373-cjfs.

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Antioxidant and antiradical activities of ferulates (i.e., ferulic acid, isoferulic acid, coniferyl aldehyde, and methyl ferulate) were investigated using a β-carotene-linoleate model system and a DPPH radical scavenging assay, respectively. Compounds so tested exhibited antioxidant and antiradical properties to varying degrees. Methyl ferulate showed the strongest antioxidant activity, whereas the parent phenolic acid was the most active ferulate to scavenge the DPPH radical (DPPH<sup>·</sup>). Isoferulic acid at concentrations ranging from 10 to 100 nmol/assay
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Polonik, Nikita S., Yuri E. Sabutskii, and Sergey G. Polonik. "Free Radical Scavenging Activity of Synthetic and Naturally Occurring Polyhydroxy-, Aminohydroxynaphthazarins and Related Compounds." Natural Product Communications 13, no. 10 (2018): 1934578X1801301. http://dx.doi.org/10.1177/1934578x1801301021.

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Fifty natural and synthetic hydroxy-, aminohydroxynaphthazarins and related quinones were tested for their antiradical activities using 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonate) (ABTS) scavenging assay. The main features of structure-antiradical activity relationship of amino- and hydroxyquinones were determined for the first time. It was found that naphthazarins (5,8-dihydroxy-1,4-naphthoquinones) are much more active against ABTS-radical than related 1,4-naphthoquinones and 5-hydroxy-1,4-naphthoquinones. Natural aminonaphthazarins (spinamine E, echinamine A) and polyhydroxylated naph
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Cason, Cameron, Veerachandra K. Yemmireddy, Juan Moreira, and Achyut Adhikari. "Antioxidant Properties of Pecan Shell Bioactive Components of Different Cultivars and Extraction Methods." Foods 10, no. 4 (2021): 713. http://dx.doi.org/10.3390/foods10040713.

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Pecan shells are a rich source of various bioactive compounds with potential antioxidant and antimicrobial properties. This study investigated the effect of pecan variety and method extraction on the antioxidant property of shell extracts. Twenty different varieties of pecan shells were subjected to either aqueous or ethanolic extraction and were examined for total phenolics and antiradical activity. The phenolic content and antiradical activity of shell extracts were significantly (p < 0.05) varied with different pecan cultivars. The total phenolic content of ethanol extracts ranged from 3
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Tajalli, F. "Evaluation of Antiradical Activity Grape Seeds and Olive (Olea europaea) Pits Extracts." Journal of Scientific Research 6, no. 1 (2013): 185–90. http://dx.doi.org/10.3329/jsr.v6i1.16654.

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The antiradical activity of grape seeds and olive pits extracts were investigated. The aim of this study is evaluating the radical scavenging activity of methanol extracts of olive pits and grape seeds and to recover a functional and antiradical compound from olive oil and fruit juices factories waste and also for environmental treatment. The antiradical properties of ripe and unripe olive pits (RIOP and URIOP) and grape seeds (IGS) that are respectively used in Iranian oil industries and fruit juices producers are examined. All seeds and pits extracts showed DPPH radical scavenging activity r
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15

Dimiņš, Fredijs, Velga Miķelsone, and Miķelis Kaņeps. "Antioxidant Characteristics of Latvian Herbal Tea Types." Proceedings of the Latvian Academy of Sciences. Section B. Natural, Exact, and Applied Sciences 67, no. 4-5 (2013): 433–36. http://dx.doi.org/10.2478/prolas-2013-0067.

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Abstract The aim of the study was to characterise antioxidative properties and antiradical activity of the herbal tea collection in Latvia. High-pressure liquid chromatography and spectrophotometry methods were used to characterise antioxidant properties of herbal tea. Antiradical activity was determined spectrophotometrically. The antiradical scavenging activity was measured by the DPPH (2,2-diphenyl-1-picrylhydrazyl) reaction. The herbal tea antiradical scavenging activity was estimated as the broken down quantity of DPPH on 100 grams of the herbal tea. Individual polyphenols in the herbal t
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16

Koroleva, Olga, Anna Torkova, Ilya Nikolaev, et al. "Evaluation of the Antiradical Properties of Phenolic Acids." International Journal of Molecular Sciences 15, no. 9 (2014): 16351–80. http://dx.doi.org/10.3390/ijms150916351.

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Polovinkina, M. A., M. N. Kolyada, V. P. Osipova, et al. "The redox properties and antiradical activity of terpenophenols." Доклады Академии наук 484, no. 5 (2019): 568–71. http://dx.doi.org/10.31857/s0869-56524845568-571.

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The redox properties and antiradical activity of terpenophenols (2,6-diisobornyl-4-methylphenol and 3-isocamphyl-2-naphthol) in comparison with BHT (butylhydroxytoluol, 2,6-di-tret-butyl-4-methylphenol) have been studied. The terpenophenols have been shown to react more readily in electron transfer processes as compared with BHT, and they have been found to react with electrochemically generated superoxide radical anion (О2•–). The effect of the compounds on the rate of generation upon adrenaline oxidation in an alkaline medium and the ability of biopreparations based on Russian sturgeon liver
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18

Polovinkina, M. A., M. N. Kolyada, V. P. Osipova, et al. "The Redox Properties and Antiradical Activity of Terpenophenols." Doklady Chemistry 484, no. 2 (2019): 48–51. http://dx.doi.org/10.1134/s001250081902006x.

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19

Gogotov, A. F., L. V. Kanitskaya, Dam Thi Thanh Hai, et al. "Enhancement of antiradical properties of dihydroquercetin by nitrosation." Russian Journal of Applied Chemistry 87, no. 12 (2014): 1877–83. http://dx.doi.org/10.1134/s1070427214120143.

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20

Ramadan, M. F., M. M. S. Asker, and M. Tadros. "Lipid profile, antiradical power and antimicrobial properties of Syzygium aromaticum oil." Grasas y Aceites 64, no. 5 (2013): 509–20. http://dx.doi.org/10.3989/gya.011713.

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21

Szwejda-Grzybowska, Justyna I., Ryszard Kosson, and Maria Grzegorzewska. "The Effect of Short-term Storage and the Hot Water Treatment of Fresh-Cut Pepper Fruit cv. ‛Blondy F1’ and ‛Yecla F1’ on the Content of Bioactive Compounds and Antioxidant Properties." Journal of Horticultural Research 24, no. 2 (2016): 83–90. http://dx.doi.org/10.1515/johr-2016-0024.

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Abstract The aim of the experiment was to determine the changes in the contents of bioactive compounds and antioxidant/antiradical activity in fresh-cut fruits of sweet pepper cv. ‘Blondy F1’ and ‘Yecla F1’, depending on the postharvest treatment. Treatment with hot water and short-term storage decreased the content of bioactive compounds and antioxidant/antiradical activity of fruit peppers. The treatment with water at 55 °C for 12 sec. of fresh-cut fruits caused lower losses in content of bioactive compounds and antioxidant/antiradical activities than the treatment with water at 45 °C for 10
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Sroka, Zbigniew, Izabela Fecka, and Wojciech Cisowski. "Antiradical and Anti-H2O2 Properties of Polyphenolic Compounds from an Aqueous Peppermint Extract." Zeitschrift für Naturforschung C 60, no. 11-12 (2005): 826–32. http://dx.doi.org/10.1515/znc-2005-11-1203.

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Polyphenolic compounds such as eriocitrin, luteolin-7-O-rutinoside, diosmin, hesperidin, narirutin, isorhoifolin, rosmarinic and caffeic acids were identified in an aqueous extract (Ex) obtained from peppermint leaves (Menthae × piperitae folium). The content of polyphenols in Ex was as follows: eriocitrin 38%, luteolin-7-O-rutinoside 3.5%, hesperidin 2.9%, diosmin 0.8%, isorhoifolin 0.6%, narirutin 0.3%, rosmarinic acid 3.7% and caffeic acid 0.05%. The strongest antiradical activity (determined as DPPH• scavenging features) was observed for luteolin-7-O-rutinoside, eriocitrin and rosmarinic a
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Dimiņš, Fredijs, and Ingrīda Augšpole. "Total Phenolic, Antioxidant Activities and Flavonoid Contents of Herbal Syrups." Key Engineering Materials 800 (April 2019): 60–64. http://dx.doi.org/10.4028/www.scientific.net/kem.800.60.

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The aim of the study was to characterize antioxidative properties and antiradical activity of the herbal syrups collection in Latvia. Spectrophotometry was used to characterize antioxidant properties of herbal syrups. Antiradical activity, total phenols and content of flavonoids were determined spectrophotometrically. The antiradical scavenging activity was measured by the DPPH (2.2-diphenyl-1-picrylhydrazyl) reaction. The herbal syrups antiradical scavenging activity was estimated by the amount of DPPH of reagent using in reaction with a sample of vegetable syrup (in percent) and by Trolox eq
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Stojković, Dejan, Jasmina Glamočlija, Marina Soković, et al. "Chemical Composition, Antimicrobial and Antiradical Properties of the Essential Oils of Seseli Globiferum Fruits." Natural Product Communications 3, no. 11 (2008): 1934578X0800301. http://dx.doi.org/10.1177/1934578x0800301129.

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The chemical composition and antimicrobial and antiradical activities of the essential oils isolated from unripe and ripe fruits of S. globiferum Vis. (Apiaceae) have been determined. The most abundant constituent in the essential oils of unripe and ripe fruits was sabinene (53.1% and 65.3%), followed by γ-terpinene (7.7% and 6.6%), α-pinene (7.2% and 4.4%), and β-phellandrene (5.0% and 4.9%). Antibacterial and antifungal properties of these oils were evaluated using a modified microdilution technique. Scavenging activity was determined by the DPPH radical assay. The essential oils exhibited s
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25

Drioiche, Aziz, Nadia Benhlima, Samira Kharchouf, et al. "ANTIMICROBIAL AND ANTIRADICAL PROPERTIES OF HAMMADA SCOPARIA (POMEL) ILJIN." African Journal of Traditional, Complementary and Alternative Medicines 16, no. 2 (2020): 1–14. http://dx.doi.org/10.21010/ajtcam.v16n2.1.

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Background: Hammada scoparia (Pomel) Iljin (HS), is commonly used by traditional healers in Morocco against microbial and fungal infections. We studied antimicrobial, antifungal and antiradical effects of organic extracts in vitro in order to confirm traditional utilization after phytochemical screening.
 Materials and methods: Aerial parts of HS have been extracted by hydro-distillation using Clevenger-type apparatus, and the chemical composition was realized by Gas Chromatography coupled with Mass Spectroscopy (GC/MS). The antioxidant activity has been evaluated using DPPH test, while t
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Chandrasekara, Anoma, and Fereidoon Shahidi. "Bioactivities and Antiradical Properties of Millet Grains and Hulls." Journal of Agricultural and Food Chemistry 59, no. 17 (2011): 9563–71. http://dx.doi.org/10.1021/jf201849d.

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Alinkina, E. S., T. A. Misharina, and L. D. Fatkullina. "Antiradical properties of oregano, thyme, and savory essential oils." Applied Biochemistry and Microbiology 49, no. 1 (2012): 73–78. http://dx.doi.org/10.1134/s000368381301002x.

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Caillet, S., J. Côté, G. Doyon, J. F. Sylvain, and M. Lacroix. "Antioxidant and antiradical properties of cranberry juice and extracts." Food Research International 44, no. 5 (2011): 1408–13. http://dx.doi.org/10.1016/j.foodres.2011.02.019.

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Lewińska, Agnieszka, Julita Kulbacka, Marta Domżał-Kędzia, and Maciej Witwicki. "Antiradical Properties of N-Oxide Surfactants—Two in One." International Journal of Molecular Sciences 22, no. 15 (2021): 8040. http://dx.doi.org/10.3390/ijms22158040.

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Surfactants are molecules that lower surface or interfacial tension, and thus they are broadly used as detergents, wetting agents, emulsifiers, foaming agents, or dispersants. However, for modern applications, substances that can perform more than one function are desired. In this study we evaluated antioxidant properties of two homological series of N-oxide surfactants: monocephalic 3-(alkanoylamino)propyldimethylamine-N-oxides and dicephalic N,N-bis[3,3′-(dimethylamino)propyl]alkylamide di-N-oxides. Their antiradical properties were tested against stable radicals using electron paramagnetic
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Popović, Boris M., Dubravka M. Štajner, Ružica Z. Ždero-Pavlović, et al. "Comparison between Organic and Conventional Spelt and Wheatgrass juice." Periodica Polytechnica Chemical Engineering 64, no. 4 (2019): 514–22. http://dx.doi.org/10.3311/ppch.13954.

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This work is aimed to compare antioxidant and scavenger properties of conventionally and organically produced speltgrass. Moreover, the antioxidant status of spelt was compared with wheatgrass. Three spelt varieties were analyzed:Nirvana, Ebners–Rotkorn variety and Eco-10. Antioxidant enzymes, superoxide-dismutase and guiacol-peroxidase, were determined as well as ferric reducing antioxidant power and DPPH-antiradical power. Total soluble proteins and total phenols were determined and also lipid peroxidation as a parameter of oxidative stress. The organically produced spelt was exposed to the
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Kupaeva, N. V., and E. A. Kotenkova. "Current view on the assessment of antioxidant and antiradical activities: A mini review." IOP Conference Series: Earth and Environmental Science 854, no. 1 (2021): 012048. http://dx.doi.org/10.1088/1755-1315/854/1/012048.

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Abstract The main problems in assessing the antioxidant properties of plant biologically active compounds are discussed in this review. Antioxidant potential should be considered as a combination of antioxidant and antiradical activities, since antiradical activity is part of the antioxidant activity and does not always coincide with antioxidant activity. The mechanisms of action and the existing experimental and computational methods for their evaluation were reviewed. Methods like FRAP, CUPRAC etc. could be used for assessment of antioxidant activity of plant compounds, but it is necessary t
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Marc, Gabriel, Anca Stana, Ana Horiana Franchini, et al. "Phenolic Thiazoles with Antioxidant and Antiradical Activity. Synthesis, In Vitro Evaluation, Toxicity, Electrochemical Behavior, Quantum Studies and Antimicrobial Screening." Antioxidants 10, no. 11 (2021): 1707. http://dx.doi.org/10.3390/antiox10111707.

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Oxidative stress represents the underlying cause of many chronic diseases in human; therefore, the development of potent antioxidant compounds for preventing or treating such conditions is useful. Starting from the good antioxidant and antiradical properties identified for the previously reported Dihydroxy-Phenyl-Thiazol-Hydrazinium chloride (DPTH), we synthesized a congeneric series of phenolic thiazoles. The radical scavenging activity, and the antioxidant and chelation potential were assessed in vitro, a series of quantum descriptors were calculated, and the electrochemical behavior of the
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Al-Fakeh, Maged S., Samir Osman, Malek Gassoumi, Mokded Rabhi, and Mohamed Omer. "Biosynthesis and characterization of Saudi propolis-mediated silver nanoparticles and their biological properties." Open Physics 19, no. 1 (2021): 753–57. http://dx.doi.org/10.1515/phys-2021-0091.

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Abstract The aim of this investigation was to synthesize propolis-mediated silver nanoparticles (Pro-AgNPs) and to test their biological activities in comparison with the raw materials (Saudi propolis). The chemical–physical characterization of the product showed that Pro-AgNPs were well synthesized. For the study of biological properties, aqueous and methanolic extracts were prepared from both propolis and Pro-AgNPs. Total polyphenol contents (TPCs) and antiradical activities showed their highest values in methanolic extracts, in particular in propolis extract. But, a higher TPC was found in
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Savel'yeva, Yelena Yevgen'yevna, Yekaterina Ziyadkhanovna Lapkina, Nadezhda Anatol'yevna Bulgakova, Yekaterina Sergeyevna Tyutrina, and Vladimir Ivanovich Kurbatskiy. "A STUDY OF THE ANTIOXIDANT ACTIVITY OF PLANTS OF THE GENUS POTENTILLA L." chemistry of plant raw material, no. 2 (June 10, 2020): 189–96. http://dx.doi.org/10.14258/jcprm.2020027261.

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In this work, a comparative assessment of the antiradical properties of some species of the genus Potentilla L. is carried out to identify the most promising in terms of further study. The aboveground part of P. chrysantha Trevir., P. canescens Bess., P. tergemina Sojak, P. erecta (L.) Raeusch., P. paradoxa Nutt. ex Tott. et Gray, P. approximata Bunge, as well as the aboveground and underground parts of P. anserina L. were used as a research object, collected in the vicinity of Tomsk. The antiradical activity of the extracts of the studied plants was evaluated spectrophotometrically, observing
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35

Boulebd, Houssem, Adam Mechler, Nguyen Thi Hoa, and Quan V. Vo. "Thermodynamic and kinetic studies of the antiradical activity of 5-hydroxymethylfurfural: computational insights." New Journal of Chemistry 44, no. 23 (2020): 9863–69. http://dx.doi.org/10.1039/d0nj01567a.

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Vo, Quan V., and Nguyen Thi Hoa. "The radical scavenging activity of moracins: theoretical insights." RSC Advances 10, no. 60 (2020): 36843–48. http://dx.doi.org/10.1039/d0ra06555b.

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Tabakaeva, O. V., W. Piekoszewski, T. K. Kalenik, et al. "Antiradical Activity of Hydrolysates and Extracts from Mollusk A. broughtonii and Practical Application to the Stabilization of Lipids." Foods 9, no. 3 (2020): 304. http://dx.doi.org/10.3390/foods9030304.

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The antiradical properties of hydrolysates and hydrothermal extracts of bivalve mollusks (Anadara broughtonii) from the Far Eastern Region of Russia and their influence on lipid oxidation in mayonnaise were investigated. The radical binding activity of hydrolysates and extracts of A. broughtonii varies from 55% to 89%. The maximum radical-binding activity was observed for acid hydrolysates. The antiradical efficiency of acid hydrolysates is 35%–41% of the BHT (butylhydroxytoluene) index. The antiradical activity depends on the (method of) technological and biotechnological processing of raw ma
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Zampieri, Paulo R. F., Cinthia I. Tamayose, Oriana A. Fávero, Paulete Romoff, and Marcelo J. P. Ferreira. "Two New Flavonoids from the Leaves of Baccharis oblongifolia (Ruiz and Pav.) Pers. (Asteraceae)." Molecules 24, no. 17 (2019): 3198. http://dx.doi.org/10.3390/molecules24173198.

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In this work, two new flavonoids, oblongifolioside A (1) and oblongifolioside B (2), along with eight known compounds (3–10), are isolated from the leaves of Baccharis oblongifolia (Asteraceae). The new structures are established through spectroscopic data and the known compounds are identified by comparison with data reported in the literature. The compounds (1–10) are evaluated in relation to their antiradical properties. Compounds 1 and 2 are found to exhibit high antiradical activity compared to their respective non-acylated flavonoids.
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Mieriņa, Inese, Elīna Peipiņa, Klaudija Aišpure, and Māra Jure. "1st generation dendrimeric antioxidants containing Meldrum's acid moieties as surface groups." New Journal of Chemistry 46, no. 2 (2022): 607–20. http://dx.doi.org/10.1039/d1nj03830c.

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Das, Ranjana. "Multienzyme Modification of Hemp Protein for Functional Peptides Synthesis." Journal of Food Processing 2015 (November 24, 2015): 1–5. http://dx.doi.org/10.1155/2015/738984.

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Functional foods and nutraceuticals are of special importance, particularly for their impact on human health and prevention of certain chronic diseases. Consequently, the production and properties of bioactive peptides have received an increasing scientific interest over past few years. Present work intends to compare the competence of metalloendopeptidases (“Protease N” and “Protease A”) with papain for getting functional peptides from hemp seed meal, which is an obligatory waste of hemp fiber production industry. As a measure of the functional potential hemp protein hydrolysates were analyze
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Safonov, A. A., and I. S. Nosulenko. "Antiradical activity of novel 4-amino-5-(thiophen-2-ylmethyl)-4H-1,2,4-triazole-3-thiol derivatives." Current issues in pharmacy and medicine: science and practice 14, no. 2 (2021): 162–66. http://dx.doi.org/10.14739/2409-2932.2021.2.230129.

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The process of studying free radicals began in the middle of the last century (the free radical theory of aging in 1956). Multiple studies have revealed the effect of free radicals on the cells of the body and the development of various diseases, such as diabetes, autoimmune diseases, diseases of the nervous system, and others. As a result, the term antioxidant has emerged, compounds that reduce and prevent the effects of free radicals. Most of the newly synthesized substances are studied for their antiradical properties. 1,2,4-Triazole derivatives are no exception, which has already proven th
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Sur, Dr Tapas Kumar Sur, Avijit Hazra, Dipankar Bhattacharyya, and Alok Kumar Hazra. "Antiradical and antiulcer effect of Sonneratia apetala Buch-Ham leaves against alcohol induced gastric mucosal injury." Ars Pharmaceutica (Internet) 62, no. 4 (2021): 348–57. http://dx.doi.org/10.30827/ars.v62i3.20759.

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Introduction: Sonneratia apetala Buch-Ham is a true mangrove inhabitant in Indian Sunderban and it is used in folk medicine for digestive disorders.
 Method: Hydro-methanolic (20:80) extract of Sonneratia apetala leaves (SA) was chemically standardized by HPTLC and evaluated for its antiradical and gastro-protective properties. Phenolics and flavonoids present in SA were determined and antiradical activities were assessed by in vitro methods like, DPPH (1,1-diphenyl-2-picrylhydrazyl), nitric oxides, superoxides, hydroxyl and ABTS (2,2/-azino-bis-3-ethyl benzthiazoline-6-sulphonic acid). F
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Huamán-Leandro, Liceth Rocío, María Jesús González-Muñoz, Catalina Fernández-de-Ana, Arturo Rodríguez-Blanco, María Dolores Torres, and Herminia Domínguez. "Autohydrolysis of Lentinus edodes for Obtaining Extracts with Antiradical Properties." Foods 9, no. 1 (2020): 74. http://dx.doi.org/10.3390/foods9010074.

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The autohydrolysis of Lentinus edodes was proposed for the extraction of components with antioxidant properties. Operation under non-isothermal conditions was evaluated and compared with isothermal heating. The influence of process severity was assessed in the range of 0.18 to 4.89 (temperature between 50 and 250 °C), up to 80% (d.b.) The influence of process severity during the autohydrolysis of Lentinus edodes was assessed in the range −0.3 to 4.89 (temperature between 50 and 250 °C). Up to 80% (d.b.) of the initial raw material could be solubilized at 210 °C. The different behavior of the s
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Kim, Mi-Yeon, Kunihisa Iwai, Akio Onodera, and Hajime Matsue. "Identification and Antiradical Properties of Anthocyanins in Fruits ofViburnum dilatatumThunb." Journal of Agricultural and Food Chemistry 51, no. 21 (2003): 6173–77. http://dx.doi.org/10.1021/jf034647p.

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Gandía-Herrero, Fernando, Josefa Escribano, and Francisco García-Carmona. "Purification and Antiradical Properties of the Structural Unit of Betalains." Journal of Natural Products 75, no. 6 (2012): 1030–36. http://dx.doi.org/10.1021/np200950n.

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Da Porto, Carla, Sonia Calligaris, Emilio Celotti, and Maria Cristina Nicoli. "Antiradical Properties of Commercial Cognacs Assessed by the DPPH•Test." Journal of Agricultural and Food Chemistry 48, no. 9 (2000): 4241–45. http://dx.doi.org/10.1021/jf000167b.

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Zhigacheva, I. V., V. I. Binyukov, I. F. Rusina, E. M. Mil’, and I. P. Generozova. "Antioxidant and Antiradical Properties of Resveratrol and Its Antistress Activity." Russian Journal of Physical Chemistry B 14, no. 4 (2020): 678–84. http://dx.doi.org/10.1134/s1990793120040120.

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Misharina, T. A., E. S. Alinkina, and L. D. Fatkullina. "Evaluation of antiradical properties of components of the ginger root." Russian Journal of Bioorganic Chemistry 40, no. 7 (2014): 785–90. http://dx.doi.org/10.1134/s1068162014070139.

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Huyut, Zübeyir, Şükrü Beydemir, and İlhami Gülçin. "Antioxidant and Antiradical Properties of Selected Flavonoids and Phenolic Compounds." Biochemistry Research International 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/7616791.

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Phenolic compounds and flavonoids are known by their antioxidant properties and one of the most important sources for humans is the diet. Due to the harmful effects of synthetic antioxidants such as BHA and BHT, natural novel antioxidants have become the focus of attention for protecting foods and beverages and reducing oxidative stressin vivo. In the current study, we investigated the total antioxidant, metal chelating, Fe3+and Cu2+reduction, and free radical scavenging activities of some phenolic and flavonoid compounds including malvin, oenin, ID-8, silychristin, callistephin, pelargonin, 3
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Kamath, Vasudeva G., Arun Chandrashekar, and P. S. Rajini. "Antiradical properties of sorghum (Sorghum bicolor L. Moench) flour extracts." Journal of Cereal Science 40, no. 3 (2004): 283–88. http://dx.doi.org/10.1016/j.jcs.2004.08.004.

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