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  • Title: Pharmacokinetics of low molecular weight phenolic compounds in gerbil plasma after the consumption of calafate berry (Berberis microphylla) extract.
    Author: Bustamante L, Pastene E, Duran-Sandoval D, Vergara C, Von Baer D, Mardones C.
    Journal: Food Chem; 2018 Dec 01; 268():347-354. PubMed ID: 30064768.
    Abstract:
    Calafate is a berry with high concentration of anthocyanins and hydroxycinnamic acids that grows in South Patagonia. To date, no metabolism studies of phenolic compounds using calafate have been carried out. A calafate extract was characterized by HPLC-DAD-ESI-MS/MS. After extract administration (300 mg/kg), a pharmacokinetic study of phenolic compounds in gerbil plasma was performed by GC-MS/MS. Sixteen phenolic acids increased after intake. Phenylacetic acid derivatives exhibit the highest concentration, while main increase of phenolic catabolites was observed 2 h post-intake. 3-hydroxyphenylacetic and phenylacetic acids increased at 4-8 h post-intake. All catabolites found in gerbil plasma exhibit concentration peaks between 0.1 and 1 µM, however no parental anthocyanins were detected. Establish in vivo plasmatic concentration ranges of phenolic compounds derived from polyphenol consumption following WHO recommendations, plays a key role to carry out future in vitro assays in order to correctly assign biological benefits of calafate berry consumption.
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