title: Composition of nonanthocyanin polyphenols in alcoholic-fermented strawberry products using LC-MS (QTRAP), high-resolution MS (UHPLC-Orbitrap-MS), LC-DAD, and antioxidant activity.
abstract: In this study, the nonanthocyanin (poly)phenolic profile of an alcoholic-fermented strawberry beverage was characterized. High-performance liquid chromatography coupled with a triple-quadropole mass spectrometer and ultra-high-performance liquid chromatography coupled with a linear trap quadropole and an Orbitrap mass analyzer was used to identify nonanthocyanin phenolic compounds. Sixty-six compounds were identified, and 13 of these were identified for the first time in strawberry or its derived alcoholic fermented beverage: protocatechuic acid-4-O-β-hexoside, brevifolin carboxylic acid, ferulic acid glucuronide, dimer caffeic acid-O-hexoside, luteolin-3'-O-xyloside, isorhamnetin 3-O-glucoside, taxifolin-O-glucoside, (+)-aromadendrin rhamnoside, eriodictyol-7-O-glucoside, (+)-taxifolin, (+)-aromadendrin, eriodictyol, and homovanillic acid. The alcoholic fermentation process produced significant increases in certain compounds, such as homovanillic acid and p-hydroxybenzoic acid, while a significant decrease in galloyl bis-HHDP-glucose was observed. Linear discriminant analysis correctly classified samples initial, final, and pasteurized, which led to the conclusion that alcoholic fermentation induces significant changes in composition, mainly in relation to the 19 compounds represented in the tables of this work.
authors.affiliation: Nutrición y Bromatología, Facultad de Farmacia, Universidad de Sevilla , C/P. García González n° 2, Sevilla 41012, Spain.
authors.forename: M Antonia
authors.initials: MA
authors.lastname: Álvarez-Fernández
authors.forename: Ana B
authors.initials: AB
authors.lastname: Cerezo
authors.forename: Ana M
authors.initials: AM
authors.lastname: Cañete-Rodríguez
authors.forename: Ana M
authors.initials: AM
authors.lastname: Troncoso
authors.forename: M Carmen
authors.initials: MC
authors.lastname: García-Parrilla
mesh_terms: D000434:Alcoholic Beverages; D000872:Anthocyanins / Q000737:chemistry*; D002851:Chromatography, High Pressure Liquid; D005285:Fermentation; D031985:Fragaria / Q000737:chemistry*; D013058:Mass Spectrometry; D010936:Plant Extracts / Q000737:chemistry*; D059808:Polyphenols / Q000737:chemistry*
chemical_list: D000872:Anthocyanins; D010936:Plant Extracts; D059808:Polyphenols
keywords: Saccharomyces cerevisiae; alcoholic fermentation; mass spectometry; metabolomics; phenolic compounds; strawberry; yeast