Antioxidant activity of phytoestrogen type isoflavones in biomimetic environments

2016 ◽  
Vol 40 (1) ◽  
pp. 606-612 ◽  
Author(s):  
Mariana Voicescu ◽  
Petra Hellwig ◽  
Aurelia Meghea
Keyword(s):  
Antioxidant Activity ◽  
Silver Nanoparticle ◽  
Chemiluminescence Method

Oxidation of phytoestrogen type isoflavones in lecithin lipidic bi-layers and in silver nanoparticle complexes by the chemiluminescence method.

Comparative efficacy of antioxidant drugs in an in vitro experiment

2021 ◽  
Vol 2021 (2) ◽  
pp. 37-40
Author(s):  
Kseniya Smirnova ◽  
Dmitriy Gildikov
Keyword(s):  
Antioxidant Activity ◽  
Test System ◽  
Comparative Efficacy ◽  
Chemiluminescence Method ◽  
Vitro Experiment ◽  
In Vitro Experiment ◽  
Oxidation System

The aim of this work was to study the antioxidant activity of 3-hydroxypyridine derivatives: Mexidol-Vet® and Emycidin in a model oxidation system. Using the chemiluminescence method, it was found that the introduction of Mexidol-Vet® into the test system at a dose of 1 mg reliably suppresses the amplitude of a fast flash and decreases the formation of photons (light sum value), compared with the test system / placebo and the test system / Emicidin. The antioxidant activity of Mexidol-Vet® is significantly higher than Emicidin by 28.1%.

Effect of esterification with fatty acid of β-cryptoxanthin on its thermal stability and antioxidant activity by chemiluminescence method

2010 ◽  
Vol 122 (3) ◽  
pp. 602-609 ◽  
Author(s):  
HongFei Fu ◽  
BiJun Xie ◽  
Gang Fan ◽  
ShaoJun Ma ◽  
XinRong Zhu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Antioxidant Activity ◽  
Fatty Acid ◽  
Chemiluminescence Method

Silver Nanoparticle-Enhanced Chemiluminescence Method for Determining Naproxen Based on Europium(III)-Sensitized Ce(IV)-Na2S2O4 Reaction

2012 ◽  
Vol 22 (3) ◽  
pp. 883-890 ◽  
Author(s):  
Mohammad Kamruzzaman ◽  
Al-Mahmnur Alam ◽  
Kyung Min Kim ◽  
Sang Hak Lee ◽  
Young Ho Kim ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Chemiluminescence Method ◽  
Enhanced Chemiluminescence

scholarly journals Rhodiola rosea in vitro culture - phytochemical analysis and antioxidant action

2014 ◽  
Vol 67 (1) ◽  
pp. 69-73 ◽  
Author(s):  
Mirosława Furmanowa ◽  
Ewa Skopińska-Rozewska ◽  
Ewa Rogala ◽  
Małgorzata Hartwich
Keyword(s):  
Antioxidant Activity ◽  
In Vitro Culture ◽  
Caffeic Acid ◽  
Hplc Method ◽  
Rhodiola Rosea ◽  
Phytochemical Analysis ◽  
Chemiluminescence Method ◽  
Phytochemical Investigation ◽  
Yellow Line

Various <em>Rhodiola rosea</em> organs and tissues from in vitro culture were studied in two areas: searching for the biological active four phenolic compounds and measurement of antioxidant activity of dry residues of EtOH-extracts soluble in PBS using chemiluminescence method. For phytochemical investigation HPLC method was used. Salidroside was typical for organs of intact plant, rosavin for roots of different origin and shoots of intact plants, triandrin was more typical for tissue cultured in vitro, but it was found in all studied samples. Caffeic acid was detected mainly in green and yellow lines of callus, less in other <em>Rhodiola rosea</em> plant material. The highest antioxidant activity showed the extract from 1,5-years-old callus of green and yellow line, which contained caffeic acid and triandrin. Further observations are in progress.

scholarly journals Phytochemical analysis and Invitro antioxidant activity of silver nanoparticle synthesized Crateva religiosa bark extract

2021 ◽  
Vol 23 (05) ◽  
pp. 190-198
Author(s):  
Charu Prabha. V ◽  
◽  
Dr. K. Chandra Prabha ◽  
Dr.S.Vijaya kumar ◽  
◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Aqueous Extract ◽  
Silver Nanoparticle ◽  
Antioxidant Property ◽  
Bark Extract ◽  
Total Phenol Content ◽  
Phytochemical Analysis ◽  
Frap Assay ◽  
Ic50 Value ◽  
Dpph Scavenging

The aim of the study is to determine the phytochemical analysis and antioxidant activity of silver nanoparticle synthesized aqueous bark extract of Crateva religiosa. The aqueous extract of Crateva religiosa barks are prepared by maceration method. The qualitative phytochemical and quantitative phytochemical analysis was carried out using standard procedures. Silver nanoparticle was synthesized for the aqueous extract. Then the antioxidant activity was determined by DPPH scavenging activity and FRAP assay. The qualitative phytochemical analysis shows the presence of alkaloids, flavonoids, phenols, tannins, saponins. Total phenol content of bark extract was found to be 1.423mg/g. Total flavonoid content was found to be 1.6mg/g.UV spectrophotometry peak confirms the presence of silver nanoparticle. The extract shows effective antioxidant property with IC50 value 42.32 µg/ml for DPPH assay and IC50 value 45 µg/ml for FRAP. The Crateva religiosa bark extract could be a novel source of antioxidant.

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