scholarly journals Free Radical Scavenging Activity of a 70% Ethanol Extract of the Whole Herb of <i>Platostoma africanum</i> P. Beaur. (Lamiaceae)

2021 ◽  
Vol 7 (5) ◽  
pp. 101
Author(s):  
Oluwatoyin Alice Tella ◽  
Akawa Ayodeji Benjamin ◽  
Fasuba Ilesanmi Kayode ◽  
Adu Isaac Adekola ◽  
Akawa Oluwole Bidemi ◽  
...  
Keyword(s):  
Free Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Ethanol Extract ◽  
Free Radical Scavenging ◽  
Free Radical Scavenging Activity ◽  
Scavenging Activity

Free Radical Scavenging Activity of Some Legumes Hulls Extract and Its Efficacy on Oil Oxidative Stability

2020 ◽  
Author(s):  
Alaa ElDein El-Beltagy ◽  
Salman Alharthi
Keyword(s):  
Antioxidant Activity ◽  
Free Radical ◽  
Ethyl Acetate ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Ethanol Extract ◽  
Free Radical Scavenging ◽  
Free Radical Scavenging Activity ◽  
Scavenging Activity ◽  
Protection Factor

Abstract Background Synthetic antioxidants have toxigenic effects, there is therefore growing interest in substituting them with natural antioxidants. Attention is being focused on extracting them from agricultural industry residuals to minimize costs. Legume seed hulls could be cheap sources of such natural antioxidants. Objective This study aims to unravel potential free radical scavenging activity, antioxidant activity, and total phenolic and flavonoid contents of some legumes’ hulls extracted by different solvents and evaluate their efficacy to enhance sunflower oil stability. Method Legume hulls extracted by different solvents were evaluated for their antioxidant activity coefficient (AAC), free radical scavenging activity [by 2,2-diphenyl-1- picrylhydrazyl (DPPH)], and phenolic and flavonoids contents. The protection factor and induction periods (rancimat test) of the highest activity extracts were evaluated. Results Sunflower seed hull ethyl acetate extract, lupine seed hull ethanol extract, and mung bean hull petroleum ether extract exhibited stronger DPPH scavenging activity, AAC, and protection factor values than other solvents. Ethyl acetate extracts of sunflower seed hulls showed an antioxidant and scavenging activity close (P&gt;0.05) to that detected for α-tocopherol. Conclusions Legume hulls may possess strong free radical scavenging and antioxidant activity. The analogous effect between sunflower hull extract and α-tocopherol make it a potential, cheaper substitute of α-tocopherol in food systems. Highlights The analogous effect between sunflower hull extract and α-tocopherol give it the potency to allow substitution at a concentration of 0.5% of sunflower hull ethyl acetate or 1% of lupine hull ethanol extract instead of 0.5% α-tocopherol to enhance induction periods and protection factors of sunflower oil.

Free radical scavenging activity of ethanolic extracts from some Apiacean species

Planta Medica ◽  
2006 ◽  
Vol 72 (11) ◽  
Author(s):  
B Nickavar ◽  
FS Abolhasani ◽  
M Kamalinejad ◽  
MR Reza Khani ◽  
F Mojab
Keyword(s):  
Free Radical ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Free Radical Scavenging Activity ◽  
Scavenging Activity ◽  
Ethanolic Extracts

Effect of Heavy Metals on Phenolic Content and Free Radical Scavenging Activity of Ocimum Tenuiflorum L

2012 ◽  
Vol 2 (3) ◽  
pp. 14-16 ◽  
Author(s):  
G. K. Dwivedi G. K. Dwivedi ◽  
◽  
K. Upadhyay K. Upadhyay ◽  
A. K. Mishra A. K. Mishra ◽  
Arvind Kumar Singh
Keyword(s):  
Heavy Metals ◽  
Free Radical ◽  
Phenolic Content ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Free Radical Scavenging ◽  
Free Radical Scavenging Activity ◽  
Scavenging Activity ◽  
Ocimum Tenuiflorum
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