| Quercetin is bioavailable from a single ingestion of grape juice. | |
| | |
MedLine Citation:
|
PMID: 17135030 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
The in vivo bioactivity of polyphenols will depend on their bioavailability. Grape juice is an important source of dietary phenolics. This paper reports results that prove that quercetin (3,3',4',5,7-pentahydroxyflavone) is bioavailable after a single ingestion of red grape juice by healthy volunteers. Blood plasma samples were collected before and after 2 h of ingestion of 100 ml of concentrated grape juice (n = 14), and of a placebo solution (n =6). Significant differences in the variation of the total plasma quercetin content (before and after ingestion) between the grape juice ingestion group (3.1 microg/l increase, as a mean) and the placebo group (6.0 microg/l decrease, as a mean) were found. This relatively low increase in comparison with that obtained after 2 h of ingestion of onions (201 microg/l, as a mean) and with those reported in the literature for other foods/beverages was attributed to differences in the amount of quercetin ingested, in the form in which quercetin is present, and in the food matrix. |
| | |
Authors:
|
Alberto Dávalos; Patricia Castilla; Carmen Gómez-Cordovés; Begoña Bartolomé |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: International journal of food sciences and nutrition Volume: 57 ISSN: 0963-7486 ISO Abbreviation: Int J Food Sci Nutr Publication Date: 2006 Aug-Sep |
Date Detail:
|
Created Date: 2006-11-30 Completed Date: 2007-06-29 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9432922 Medline TA: Int J Food Sci Nutr Country: England |
Other Details:
|
Languages: eng Pagination: 391-8 Citation Subset: IM |
Affiliation:
|
Servicio de Bioquímica-Investigación, Hospital Ramón y Cajal, Madrid, Spain. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Beverages* Biological Availability Drinking Humans Nutritive Value Onions / chemistry Quercetin / analysis, blood, pharmacokinetics* Vitis / chemistry, metabolism* |
| Chemical | |
Reg. No./Substance:
|
117-39-5/Quercetin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Contribution to the study of camel milk fat globule membrane.
Next Document: Carotenoid and vitamin content of Karat and other Micronesian banana cultivars.