Synthesis, Structural elucidation, Antioxidant Activity of new Phenolic Derivatives containing Piperidine Moiety: Experimental and theoretical investigations

2021 ◽  
Author(s):  
Sanae Lahmidi ◽  
El Hassane Anouar ◽  
Mohamed El Hafi ◽  
Otman El‐Guourrami ◽  
El Mokhtar Essassi ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Structural Elucidation ◽  
Theoretical Investigations ◽  
Phenolic Derivatives

Novel Flavonoids from the Leaves ofActinidia valvataDunn: Structural Elucidation and Antioxidant Activity

Planta Medica ◽  
2010 ◽  
Vol 77 (01) ◽  
pp. 70-73 ◽  
Author(s):  
Hai-Liang Xin ◽  
Ying-Chun Wu ◽  
Yong-Hua Su ◽  
Jia-Yu Sheng ◽  
Chang-Quan Ling
Keyword(s):  
Antioxidant Activity ◽  
Structural Elucidation

Structural elucidation and cellular antioxidant activity evaluation of major antioxidant phenolics in lychee pulp

2014 ◽  
Vol 158 ◽  
pp. 385-391 ◽  
Author(s):  
Dongxiao Su ◽  
Huihui Ti ◽  
Ruifen Zhang ◽  
Mingwei Zhang ◽  
Zhengchen Wei ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Structural Elucidation ◽  
Cellular Antioxidant Activity ◽  
Activity Evaluation

scholarly journals Quantification of phenolic derivatives and antioxidant activity of the leaves of Chamaecrista diphylla (L.) Greene (Fabaceae))

2020 ◽  
Vol 16 (3) ◽  
Author(s):  
José Diogo Evangelista Reis ◽  
Paulo Wender Portal Gomes ◽  
Abraão De Jesus Barbosa Muribeca ◽  
Marcela Natalia Rocha de Castro
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Derivatives

scholarly journals Measurement of Antioxidant Activity and Structural Elucidation of Chemical Constituents from Aglaia oligophylla Miq.

2016 ◽  
Vol 95 ◽  
pp. 1-7 ◽  
Author(s):  
Yunie Yeap Soon Yu ◽  
◽  
Nur Kartinee Kassim ◽  
Khalid Hamid Musa ◽  
Aminah Abdullah
Keyword(s):  
Antioxidant Activity ◽  
Chemical Constituents ◽  
Structural Elucidation

scholarly journals Theoretical investigations on the antioxidant potential of a non-phenolic compound thymoquinone: a DFT Approach

2021 ◽  
Author(s):  
Jewel Hossen ◽  
M. Abbas Ali ◽  
Sultanur Reza
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Density Functional ◽  
Nigella Sativa ◽  
Radical Scavenging ◽  
Hydroxyl Group ◽  
Black Cumin ◽  
Theoretical Investigations ◽  
Water Media ◽  
Thermochemical Parameters

Abstract Thymoquinone (TQ) is a natural compound occurred in black cumin ( Nigella sativa L.), which possesses potent antioxidant activity without having any phenolic hydroxyl group believed to be responsible for antioxidant activity of a molecule. In the present study, computational calculation based on Density Functional Theory (DFT) have been executed to assess systematically the worth of antioxidant behavior of this compound. Geometrical characteristics, HOMO-LUMO and MEP surface have been studied. Thermochemical parameters correlated to the leading antioxidant mechanisms such as HAT, SETPT and SPLET have been studied in gas and water media. In addition, the changes of thermochemical parameters such as ∆G and ∆H have been computed for HA from TQ to hydroxyl radical in gas and water phases to investigate its free radical scavenging potency. The low and comparable values of BDE, PDE, IP, PA and ETE suggest the antioxidant activity. The ∆G and ∆H also convey apposite thermodynamic evidence in favor of antiradical capability of TQ. The attack of the free radical takes place preferentially at 3CH position of the molecule.

Structural elucidation and antioxidant activity of a water-soluble polysaccharide from the fruit bodies of Bulgaria inquinans (Fries)

2013 ◽  
Vol 138 (2-3) ◽  
pp. 1470-1475 ◽  
Author(s):  
Hongtao Bi ◽  
Tingting Gao ◽  
Zonghong Li ◽  
Li Ji ◽  
Wei Yang ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Structural Elucidation ◽  
Water Soluble ◽  
Soluble Polysaccharide

scholarly journals Antioxidant Potential of Novel Designed Phenolic Derivatives: Computational Insights

2020 ◽  
Vol 14 (4) ◽  
pp. 448-454
Author(s):  
Dinesh R. Pandithavidana ◽  
◽  
Kushani S. K. Hewage ◽  
Keyword(s):  
Density Functional Theory ◽  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Electron Donor ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Antioxidant Action ◽  
Functional Theory ◽  
Primary Antioxidant ◽  
Phenolic Derivatives

Density functional theory calculations were applied for designed phenolic antioxidant derivatives. The reaction enthalpies related to various mechanisms of primary antioxidant action were deliberated in detail. How antioxidant activity of designed phenolic compounds has been perturbed by electron donor and withdrawing substituents present at ortho, meta and para positions, allylic conjugation and the dimerization effect were computed.

Structural elucidation and antioxidant activity of an arabinogalactan from the leaves of Moringa oleifera

2018 ◽  
Vol 112 ◽  
pp. 126-133 ◽  
Author(s):  
Tao-Bin He ◽  
Yan-Ping Huang ◽  
YeWei Huang ◽  
Xuan-Jun Wang ◽  
Jiang-Miao Hu ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Moringa Oleifera ◽  
Structural Elucidation

Structural elucidation and antioxidant activity of a novel polysaccharide (TAPB1) from Tremella aurantialba

2015 ◽  
Vol 43 ◽  
pp. 459-464 ◽  
Author(s):  
Xiuju Du ◽  
Yang Zhang ◽  
Hongmei Mu ◽  
Zhiwei Lv ◽  
Yan Yang ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Structural Elucidation
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