Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón region

The variability of the parameters of chemical composition of virgin olive oil, “Empeltre” variety, in 472 samples coming from the Bajo Aragón region, in three seasons 1996/97, 1997/98 y 1998/99 was studied in this work. The free acidity, peroxide values, ultraviolet absorbances, fatty acid compositi...

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Main Author: Mª Soledad Gracia Gómez
Format: Article
Language:English
Published: Consejo Superior de Investigaciones Científicas 2001-02-01
Series:Grasas y Aceites
Subjects:
Online Access:http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/396
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author Mª Soledad Gracia Gómez
author_facet Mª Soledad Gracia Gómez
author_sort Mª Soledad Gracia Gómez
collection DOAJ
description The variability of the parameters of chemical composition of virgin olive oil, “Empeltre” variety, in 472 samples coming from the Bajo Aragón region, in three seasons 1996/97, 1997/98 y 1998/99 was studied in this work. The free acidity, peroxide values, ultraviolet absorbances, fatty acid composition, sterolic composition and the level of waxes and polyphenols were analized. Considering their chemical composition, the majority of the analysed oils are of great quality. The oils of the 1997/98 season differ more from those of other seasons, having been affected by the attack of the Dacus oleae, which gave a higger acidity level, raising the peroxides and the waxes as well. The sterolic composition was also affected. The “Empeltre” variety from the Bajo Aragón region shows high values of Delta7 stigmastenol, which in many cases exceed the maximum value of the European Union Commission Regulation.
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spelling doaj.art-c8eedd87018f4b3990f85fe33e380dbc2022-12-21T22:32:19ZengConsejo Superior de Investigaciones CientíficasGrasas y Aceites0017-34951988-42142001-02-01521525810.3989/gya.2001.v52.i1.396393Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón regionMª Soledad Gracia Gómez0Laboratorio Agroambiental. Diputación General de AragónThe variability of the parameters of chemical composition of virgin olive oil, “Empeltre” variety, in 472 samples coming from the Bajo Aragón region, in three seasons 1996/97, 1997/98 y 1998/99 was studied in this work. The free acidity, peroxide values, ultraviolet absorbances, fatty acid composition, sterolic composition and the level of waxes and polyphenols were analized. Considering their chemical composition, the majority of the analysed oils are of great quality. The oils of the 1997/98 season differ more from those of other seasons, having been affected by the attack of the Dacus oleae, which gave a higger acidity level, raising the peroxides and the waxes as well. The sterolic composition was also affected. The “Empeltre” variety from the Bajo Aragón region shows high values of Delta7 stigmastenol, which in many cases exceed the maximum value of the European Union Commission Regulation.http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/396“bajo aragón”chemical composition“empeltre” varietyolive oil
spellingShingle Mª Soledad Gracia Gómez
Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón region
Grasas y Aceites
“bajo aragón”
chemical composition
“empeltre” variety
olive oil
title Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón region
title_full Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón region
title_fullStr Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón region
title_full_unstemmed Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón region
title_short Chemical composition of virgin olive oil “Empeltre” variety from the Bajo Aragón region
title_sort chemical composition of virgin olive oil empeltre variety from the bajo aragon region
topic “bajo aragón”
chemical composition
“empeltre” variety
olive oil
url http://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/396
work_keys_str_mv AT masoledadgraciagomez chemicalcompositionofvirginoliveoilempeltrevarietyfromthebajoaragonregion