Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/62919
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Improved procedure to determine non-extractable polymeric proanthocyanidins in plant foods |
Autor: | Zurita, Javier CSIC; Díaz Rubio, M. Elena CSIC ORCID; Saura Calixto, Fulgencio D. CSIC | Fecha de publicación: | 2012 | Editor: | Taylor & Francis | Citación: | International Journal of Food Sciences and Nutrition 63: 936- 939 (2012) | Resumen: | Proanthocyanidins (PA) or condensed tannins, a major group of oligomeric and polymeric dietary polyphenols, have an essential role on the organoleptic and health-related properties of plant foods. Their content is usually determined by HPLC analysis of aqueousorganic extracts. However, appreciable amounts of polymeric PA that remain in the residues of extraction usually are not considered for the analysis. A complete quantification of PA requires an additional determination of these non-extractable PA (NEPA). The objective of this work was to develop a new procedure to determine the content of NEPA, based in depolymerization by butanolysis, which yields anthocyanidin monomers and xanthylium compounds. Samples and standard are treated with butanol/HCl with FeCl3 (100°C, 60 min), and absorbances at 555 nm (anthocyanidins) and 450 nm (xanthylium compounds) are measured in the hydrolysates. NEPA content determined in some plant foods suggests that procedures based just on anthocyanidin concentration overestimate the actual content. © 2012 Informa UK, Ltd. | URI: | http://hdl.handle.net/10261/62919 | DOI: | 10.3109/09637486.2012.681634 | Identificadores: | doi: 10.3109/09637486.2012.681634 issn: 0963-7486 e-issn: 1465-3478 |
Aparece en las colecciones: | (ICTAN) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
67
checked on 16-abr-2024
WEB OF SCIENCETM
Citations
60
checked on 22-feb-2024
Page view(s)
330
checked on 23-abr-2024
Download(s)
139
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.