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

ABSTRACT 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 HC...

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Autores principales:	Samra,Amamra, Ilhem,Kaabi, Elkheir,Belhaddad Oum, Abderrahmane,Baghiani, Lekhmici,Arrar
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2021
Materias:	Fraxinus excelsior ABTS+ FRAP DPPH Antioxidant Capacity Corrosion inhibitor
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072021000305262
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spelling	oai:scielo:S0717-970720210003052622021-10-14PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTSSamra,AmamraIlhem,KaabiElkheir,Belhaddad OumAbderrahmane,BaghianiLekhmici,Arrar Fraxinus excelsior ABTS+ FRAP DPPH Antioxidant Capacity Corrosion inhibitor ABSTRACT 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: The total polyphenols and flavonoids contents were in the order EAE > ChE > BolE > MetE > AqE > 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 extracts have a potential antioxidant activity in the same order obtained by using the DPPH test, which the antioxidant activity followed a decreasing order: EAE > ChE > BolE > MetE > AqE > 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.info:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.66 n.3 20212021-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072021000305262en10.4067/S0717-97072021000305262
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Fraxinus excelsior ABTS+ FRAP DPPH Antioxidant Capacity Corrosion inhibitor
spellingShingle	Fraxinus excelsior ABTS+ FRAP DPPH Antioxidant Capacity Corrosion inhibitor Samra,Amamra Ilhem,Kaabi Elkheir,Belhaddad Oum Abderrahmane,Baghiani Lekhmici,Arrar PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTS
description	ABSTRACT 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: The total polyphenols and flavonoids contents were in the order EAE > ChE > BolE > MetE > AqE > 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 extracts have a potential antioxidant activity in the same order obtained by using the DPPH test, which the antioxidant activity followed a decreasing order: EAE > ChE > BolE > MetE > AqE > 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.
author	Samra,Amamra Ilhem,Kaabi Elkheir,Belhaddad Oum Abderrahmane,Baghiani Lekhmici,Arrar
author_facet	Samra,Amamra Ilhem,Kaabi Elkheir,Belhaddad Oum Abderrahmane,Baghiani Lekhmici,Arrar
author_sort	Samra,Amamra
title	PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTS
title_short	PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTS
title_full	PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTS
title_fullStr	PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTS
title_full_unstemmed	PHENOLICS COMPOSITION, ANTIOXIDANT AND CORROSION INHIBITION EFFICIENCY, CAPACITY OF F raxinus Excelsior EXTRACTS
title_sort	phenolics composition, antioxidant and corrosion inhibition efficiency, capacity of f raxinus excelsior extracts
publisher	Sociedad Chilena de Química
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072021000305262
work_keys_str_mv	AT samraamamra phenolicscompositionantioxidantandcorrosioninhibitionefficiencycapacityoffraxinusexcelsiorextracts AT ilhemkaabi phenolicscompositionantioxidantandcorrosioninhibitionefficiencycapacityoffraxinusexcelsiorextracts AT elkheirbelhaddadoum phenolicscompositionantioxidantandcorrosioninhibitionefficiencycapacityoffraxinusexcelsiorextracts AT abderrahmanebaghiani phenolicscompositionantioxidantandcorrosioninhibitionefficiencycapacityoffraxinusexcelsiorextracts AT lekhmiciarrar phenolicscompositionantioxidantandcorrosioninhibitionefficiencycapacityoffraxinusexcelsiorextracts
_version_	1718324218226016256

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

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