Advanced characterization of polyphenols from Myrciaria jaboticaba peel and lipid protection in in vitro gastrointestinal digestion.

Autor: Tarone AG; UNICAMP - University of Campinas, School of Food Engineering, LANUM, Rua Monteiro Lobato, 80, Campinas, SP CEP:13083-862, Brazil., Goupy P; INRAE, Avignon University, UMR408 SQPOV, F-84000 Avignon, France., Ginies C; INRAE, Avignon University, UMR408 SQPOV, F-84000 Avignon, France., Marostica MR Junior; UNICAMP - University of Campinas, School of Food Engineering, LANUM, Rua Monteiro Lobato, 80, Campinas, SP CEP:13083-862, Brazil., Dufour C; INRAE, Avignon University, UMR408 SQPOV, F-84000 Avignon, France. Electronic address: claire.dufour@inrae.fr.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2021 Oct 15; Vol. 359, pp. 129959. Date of Electronic Publication: 2021 Apr 27.
DOI: 10.1016/j.foodchem.2021.129959
Abstrakt: Ultrasound-assisted and solvent extractions resulted in similar levels of hydrolyzable tannins (10.3-6.0 mg/g), anthocyanins (7.8-10.2 mg/g) and flavonols (0.24-0.32 mg/g) for dried Myrciaria jaboticaba peel (DJP). Ultrasound was efficient for the extraction of poorly soluble hydrolyzable tannins but affected the stability of anthocyanins and flavonols. UPLC-DAD-MS n allowed the identification of 44 hydrolyzable tannins as single and mixed hexosides bearing galloyl, HHDP and tergalloyl units. Twelve mixed HHDP-galloylgluconic acids and tergalloylated hexosides were newly discovered in this work. Acid hydrolysis of both ultrasonic extract and DJP yielded five major compounds, i.e. gallic acid, ellagic acid, gallic acid-C-hexoside, valoneic acid dilactone and sanguisorbic acid dilactone and pointed to higher contents in hydrolyzable tannins than by summing individual polyphenols after UPLC. Last, cyanidin-3-O-glucoside and hydrolyzable tannins from the ultrasonic extract inhibited lipid peroxidation of a Western type meal in in vitro digestion, suggesting a health benefit for these jabuticaba polyphenols.
(Copyright © 2021 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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