Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil

Abstract The production of high quality natural Antioxidants from olive pruning wood extracts and their application to prevent the oxidation of vegetable oils were evaluated. The production of antioxidants from branches of olive pruning wood (OPW) using Soxhlet extraction and ethanol was optimized,...

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Autores principales:	González-Fuentes,Pamela A., Zuñiga,María C., Olea-Azar,Claudio A., Loyola,Cristina, Folch-Cano,Christian G.
Lenguaje:	English
Publicado:	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal 2017
Materias:	Antioxidants catechin lipid oxidation oleuropein olive wood pruning
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000300262
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spelling	oai:scielo:S0718-162020170003002622018-02-20Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower OilGonzález-Fuentes,Pamela A.Zuñiga,María C.Olea-Azar,Claudio A.Loyola,CristinaFolch-Cano,Christian G. Antioxidants catechin lipid oxidation oleuropein olive wood pruning Abstract The production of high quality natural Antioxidants from olive pruning wood extracts and their application to prevent the oxidation of vegetable oils were evaluated. The production of antioxidants from branches of olive pruning wood (OPW) using Soxhlet extraction and ethanol was optimized, evaluating the use of dry and fresh OPW, with extraction of an initial mass of 1 and 3 g and extraction times of 2, 4 and 8 h. For the evaluation of the antioxidant properties of the OPW extracts (OPWEs), the 2.2-diphenyl-1-picrylhydrazyl (DPPH) radical bleaching and ORAC-FL assays were performed. Additionally, the phenolic profile of the OPWEs was obtained by using HPLC-DAD, and the total phenolic composition was quantified by the Folin-Ciocalteu assay. The OPWE obtained from dry OPW using 1 g of initial mass showed the highest content of phenolic compounds and better antioxidant capacity compared to the OPWE obtained from fresh OPW. Both extracts showed the same profiles, but the OPWE obtained from dry OPW showed twice the concentrations of catechin (1.00 g 100 g−1 OPWE) and oleuropein (12.59 g 100 g−1 OPWE). Low concentrations of optimized OPWE showed activity against lipid oxidation of sunflower oil, measured by the peroxide value obtained by microwave and forced air oven heating. Under high temperature conditions and concentrations, the results suggest that OPWE may present the opposite effect.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería ForestalCiencia e investigación agraria v.44 n.3 20172017-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000300262en10.7764/rcia.v44i3.1786
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Antioxidants catechin lipid oxidation oleuropein olive wood pruning
spellingShingle	Antioxidants catechin lipid oxidation oleuropein olive wood pruning González-Fuentes,Pamela A. Zuñiga,María C. Olea-Azar,Claudio A. Loyola,Cristina Folch-Cano,Christian G. Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil
description	Abstract The production of high quality natural Antioxidants from olive pruning wood extracts and their application to prevent the oxidation of vegetable oils were evaluated. The production of antioxidants from branches of olive pruning wood (OPW) using Soxhlet extraction and ethanol was optimized, evaluating the use of dry and fresh OPW, with extraction of an initial mass of 1 and 3 g and extraction times of 2, 4 and 8 h. For the evaluation of the antioxidant properties of the OPW extracts (OPWEs), the 2.2-diphenyl-1-picrylhydrazyl (DPPH) radical bleaching and ORAC-FL assays were performed. Additionally, the phenolic profile of the OPWEs was obtained by using HPLC-DAD, and the total phenolic composition was quantified by the Folin-Ciocalteu assay. The OPWE obtained from dry OPW using 1 g of initial mass showed the highest content of phenolic compounds and better antioxidant capacity compared to the OPWE obtained from fresh OPW. Both extracts showed the same profiles, but the OPWE obtained from dry OPW showed twice the concentrations of catechin (1.00 g 100 g−1 OPWE) and oleuropein (12.59 g 100 g−1 OPWE). Low concentrations of optimized OPWE showed activity against lipid oxidation of sunflower oil, measured by the peroxide value obtained by microwave and forced air oven heating. Under high temperature conditions and concentrations, the results suggest that OPWE may present the opposite effect.
author	González-Fuentes,Pamela A. Zuñiga,María C. Olea-Azar,Claudio A. Loyola,Cristina Folch-Cano,Christian G.
author_facet	González-Fuentes,Pamela A. Zuñiga,María C. Olea-Azar,Claudio A. Loyola,Cristina Folch-Cano,Christian G.
author_sort	González-Fuentes,Pamela A.
title	Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil
title_short	Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil
title_full	Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil
title_fullStr	Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil
title_full_unstemmed	Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil
title_sort	effect of olive pruning wood extract on lipid oxidation in sunflower oil
publisher	Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000300262
work_keys_str_mv	AT gonzalezfuentespamelaa effectofolivepruningwoodextractonlipidoxidationinsunfloweroil AT zunigamariac effectofolivepruningwoodextractonlipidoxidationinsunfloweroil AT oleaazarclaudioa effectofolivepruningwoodextractonlipidoxidationinsunfloweroil AT loyolacristina effectofolivepruningwoodextractonlipidoxidationinsunfloweroil AT folchcanochristiang effectofolivepruningwoodextractonlipidoxidationinsunfloweroil
_version_	1714202179370221568

Effect of Olive Pruning Wood Extract on Lipid Oxidation in Sunflower Oil

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