Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/127914
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Analysis of Volatile Markers for Virgin Olive Oil Aroma Defects by SPME-GC/FID: Possible Sources of Incorrect Data |
Autor: | Oliver-Pozo, Celia CSIC; Aparicio-Ruiz, R. CSIC ORCID; Romero, Inmaculada; García-González, Diego L. CSIC ORCID | Palabras clave: | Virgin olive oil Volatile compounds Sesory defects SPME-GC/FID Competition phenomena |
Fecha de publicación: | 14-nov-2015 | Editor: | American Chemical Society | Citación: | Journal of Agricultural and Food Chemistry 63 (48): 10477–10483 (2015) | Resumen: | The need to explain virgin olive oil (VOO) aroma descriptors by means of volatiles has raised interest in applying analytical techniques for trapping and quantitating volatiles. Static headspace sampling with solid phase microextraction (SPME) as trapping material is one of the most applied solutions for analyzing volatiles. The use of an internal standard and the determination of the response factors of the main volatiles seem to guarantee the correct determination of volatile concentrations in VOOs by SPME-GC/FID. This paper, however, shows that the competition phenomena between volatiles in their adsorption to the SPME fiber, inherent in static headspace sampling, may affect the quantitation. These phenomena are more noticeable in the particular case of highly odorant matrices, such as rancid and vinegary VOOs with high intensity of defect. The competition phenomena can modify the measurement sensitivity, which can be observed in volatile quantitation as well as in the recording of internal standard areas in different matrices. This paper analyzes the bias of the peak areas and concentrations of those volatiles that are markers for each sensory defect of VOOs (rancid, vinegary, musty, and fusty) when the intensity and complexity of aroma are increased. Of the 17 volatile markers studied in this work, 10 presented some anomalies in the quantitation in highly odorant matrices due the competition phenomena. However, quantitation was not affected in the concentration ranges at which each volatile marker is typically found in the defective oils they were characteristic of, validating their use as markers. | Descripción: | 7 Páginas; 3 Figuras; 3 Tablas | Versión del editor: | http://dx.doi.org/10.1021/acs.jafc.5b03986 | URI: | http://hdl.handle.net/10261/127914 | DOI: | 10.1021/acs.jafc.5b03986 | ISSN: | 0021-8561 | E-ISSN: | 1520-5118 |
Aparece en las colecciones: | (IG) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
PostP_2015_JAFC_V63_P10477.pdf | 5,82 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
33
checked on 16-abr-2024
WEB OF SCIENCETM
Citations
34
checked on 20-feb-2024
Page view(s)
291
checked on 23-abr-2024
Download(s)
147
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.