Chemiluminescence determination of free radical scavenging abilities of ‘tea pigments’ and comparison with ‘tea polyphenols’

2003 ◽  
Vol 80 (1) ◽  
pp. 115-118 ◽  
Author(s):  
Zhao Yaping ◽  
Yu Wenli ◽  
Wang Dapu ◽  
Liang Xiaofeng ◽  
Hu Tianxi
Keyword(s):  
Free Radical ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Tea Polyphenols

Determination of the free radical scavenging activity of dihydropyran-2,4-diones

2004 ◽  
Vol 14 (23) ◽  
pp. 5859-5861 ◽  
Author(s):  
Laura Cristiane de Souza ◽  
Stella Maris Soares de Araújo ◽  
Dennis de Oliveira Imbroisi
Keyword(s):  
Free Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Free Radical Scavenging Activity ◽  
Scavenging Activity

Cerium nanoparticles synthesized using aqueous extract of Centella asiatica: characterization, determination of free radical scavenging activity and evaluation of efficacy against cardiomyoblast hypertrophy

RSC Advances ◽  
2015 ◽  
Vol 5 (27) ◽  
pp. 21074-21083 ◽  
Author(s):  
Vandana Sankar ◽  
Palayyan SalinRaj ◽  
Raj Athira ◽  
Rema Sreenivasan Soumya ◽  
Kozhiparambil Gopalan Raghu
Keyword(s):  
Free Radical ◽  
Cellular Uptake ◽  
Aqueous Extract ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Centella Asiatica ◽  
Free Radical Scavenging ◽  
Calcium Overload ◽  
Scavenging Activity

Cerium nanoparticles synthesized usingCentella asiaticawere characterized, and tested for radical scavenging activities, cellular uptake, cytotoxicity and efficacy against cardiomyoblast hypertrophy and calcium overload.

scholarly journals Free Radical Scavenging Activity, Reducing Power and Anti-Hemolytic Capacity of Algerian Drimia maritima Baker Flower Extracts

2020 ◽  
Vol 10 (4) ◽  
pp. 70-78
Author(s):  
Abir Rezzagui ◽  
Abderrahmane Senator ◽  
Soumia Benbrinis ◽  
Hamama Bouriche
Keyword(s):  
Lipid Peroxidation ◽  
Free Radical ◽  
Phenolic Compounds ◽  
Superoxide Anion ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Reducing Power ◽  
Free Radical Scavenging ◽  
Scavenging Activity

This study was undertaken to evaluate the antioxidant and anti-hemolytic properties of Algerian Drimia maritima Baker flower extracts. Determination of phenolic content was carried out to estimate the chemical composition of D. maritima extracts. Antioxidant properties were investigated in all extracts using free radical scavenging activity (against DPPH, ABTS, hydroxyl radical, and superoxide anion), reducing power, inhibition of lipid peroxidation, and anti-hemolytic capacity. Phenolic determination revealed that D. maritima flowers contain phenolic compounds, flavonoids, and tannins. Ethyl acetate extract showed the highest reducing power and scavenging activity using DPPH and ABTS assays. However, aqueous extract was the most effective against hydroxyl radical, superoxide anion, and lipid peroxidation. The half-time of hemolysis indicates that chloroform extract exhibited the best anti-hemolytic capacity in the AAPH induced hemolysis model. The results of this study suggest that D. maritima could be used as a possible source of antioxidant phenolic compounds and that further determination of these compounds may provide more information on their medicinal value.  Keywords: Drimia maritima, phenolic compounds, scavenging activity, reducing power, anti-hemolytic.

scholarly journals Determination of Free Radical Scavenging, Antioxidative DNA Damage Activities and Phytochemical Components of Active Fractions from Lansium domesticum Corr. Fruit

Nutrients ◽  
2015 ◽  
Vol 7 (8) ◽  
pp. 6852-6873 ◽  
Author(s):  
Prapaipat Klungsupya ◽  
Nava Suthepakul ◽  
Thanchanok Muangman ◽  
Ubon Rerk-Am ◽  
Jeerayu Thongdon-A
Keyword(s):  
Dna Damage ◽  
Free Radical ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Phytochemical Components ◽  
Lansium Domesticum

scholarly journals Nutritional Analysis and Determination of Antioxidant Activity Using Free Radical Scavenging Assay of Potatoes (Solanum tuberosum) from Two Regions of Pakistan

2017 ◽  
Vol 60 (2) ◽  
pp. 118-120
Author(s):  
Naseem Zahra ◽  
Muhammad Khalid Saeed ◽  
Ashi Nazir ◽  
Ijaz Ahmad ◽  
Alim-un- Nisa ◽  
...  
Keyword(s):  
Solanum Tuberosum ◽  
Free Radical ◽  
Antioxidant Activities ◽  
Radical Scavenging ◽  
Water Extract ◽  
Free Radical Scavenging ◽  
Dependent Manner ◽  
Nutritional Analysis ◽  
Free Radical Scavenging Assay

Present study was designed to evaluate the nutritional values of red skin potatoes collected fromGujranwala and Lahore regions of Pakistan. Potatoes (Solanum tuberosum) of Gujranwala and Lahorewere found to contain moisture contents of 5.00 and 5.15%, respectively. Fat was 0.19% in S. tuberosumof Gujranwala whereas Lahore potatoes were found to contain fat 0.2%. Fibre content of S. tuberosum ofGujranwala was 16.47% while S. tuberosum of Lahore had 13.45% fibre. Protein contents of S. tuberosumof Gujranwala were 12.89% whereas for S. tuberosum of Lahore were 13.11%. The water extract showedsignificant free radical scavenging activities in DPPH radical scavenging antioxidant assay and antioxidantactivity was increased in a dose dependent manner. These results suggest that potato (S. tuberosum) is notonly a cheap source of very important nutritents but also has antioxidant activities which are helpful tomaintain different physiological functions of body.

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