PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTS

Journal of The Chilean Chemical Society

article

Amamra Samra¹  Kaabi Ilhem²  Belhaddad Oum Elkheir¹  Baghiani Abderrahmane¹  Arrar Lekhmici¹ 

[1] Laboratory of Applied Biochemistry, Faculty of Nature and Life Sciences, University Ferhat Abbas Setif-1;Laboratory of Electrochemistry of Molecular Materials and Complexes ,(LEMMC), Department of Engineering Process, Faculty of Technology, University Ferhat Abbas Setif-1

关键词: Fraxinus excelsior;    ABTS+;    FRAP;    DPPH;    Antioxidant Capacity;    Corrosion inhibitor;   

DOI  :  10.4067/S0717-97072021000305262

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

Objective:In this study, we will determine the antioxidant properties of Fraxinus excelsior extracts and will correlate the values with total levels of polyphenolic compounds. And the ethyl acetate extract (EAE) was investigated as eco-friendly corrosion inhibitor of carbon steel in 1M HCl has been studied by both electrochemical impedance spectroscopy (EIS) and Tafel polarization measurements.Methods:Antioxidant activity was evaluated by DPPH, ABTS+, FRAP and enzymatic test. Total polyphenols and total flavonoids contents were evaluated by spectrophotometric assays. And the corrosion inhibition was studied by polarization and electrochemical impedance spectroscopy methods.Results: PEE. The DPPH of MetE, PEE, EAE, ChE, BolE and AqE extract activity expressed as IC50 values were in the order 125.15 ± 2.5, 3722.5 ± 31.82, 23.1 ± 0.48, 101.86 ± 1.64, 106.06 ± 2.97 and 363.41±1.38 μg / ml. The results of ABTS.+, FRAP and the enzymatic test showed that the Fraxinus excelsior PEE. The ethyl acetate extract (EAE) exhibits good inhibition properties for the corrosion of carbon steel in 1M HCl solution.Conclusions:In conclusion, Fraxinus excelsior extracts contain active compounds which have antioxidant effects and can be useful in the treatment of pathologies where these activities are needed. And the corrosion inhibition data considered this extract (EAE) as an efficient corrosion inhibitor.

【 授权许可】

Unknown