title: Resveratrol and piceid levels in natural and blended peanut butters.
abstract: Peanut and its derivatives, especially peanut butter, are extensively consumed in many countries, mainly in the United States, which is also the major exporter of these products. trans-Resveratrol is present in peanuts, and recently this compound has been quantified in peanut butter. It is well-known that there are beneficial effects of trans-resveratrol and its glucoside, the piceid, in health. The absorption of trans-resveratrol has been proven in animals, and certain studies show that the absorption of some phenols is enhanced by conjugation with glucose, so that it could be possible that trans-piceid would be more absorbed than its aglycon (trans-resveratrol). In our work, we have identified the presence of trans-piceid in peanut butter with a new method to quantify trans-resveratrol and trans-piceid (3-beta-glucose of trans-resveratrol). This fact is very interesting because the glucosilated form could be more easily absorbed by the intestinal gut; in this way trans-piceid would exercise its beneficial function more efficiently than trans-resveratrol. To our knowledge, this is the first time that trans-piceid has been quantified in peanut butter. Resveratrol and piceid contents in natural peanut butters were found to be significantly higher than those in blended peanut butters.
authors: Nutrició i Bromatologia, CeRTA, Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028- Barcelona, Spain.
authors: M
authors: M
authors: Ibern-Gómez
authors: S
authors: S
authors: Roig-Pérez
authors: R M
authors: RM
authors: Lamuela-Raventós
authors: M C
authors: MC
authors: de la Torre-Boronat
mesh_terms: D000042:Absorption; D010367:Arachis / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D005511:Food Handling; D005960:Glucosides / Q000032:analysis* / Q000378:metabolism; D010975:Platelet Aggregation Inhibitors / Q000378:metabolism; D000077185:Resveratrol; D013267:Stilbenes / Q000032:analysis* / Q000378:metabolism
chemical_list: D005960:Glucosides; D010975:Platelet Aggregation Inhibitors; D013267:Stilbenes; D000077185:Resveratrol; C058229:polydatin