title: β-Cyclodextrin-assisted extraction of polyphenols from vine shoot cultivars.
abstract: This work optimized the β-cyclodextrin (β-CD)-assisted extraction process of polyphenols from vine shoots. The efficiency of β-CD was compared to that of ethanol in terms of the quantity and antioxidant capacity (AC) of the extracted polyphenols. Response surface methodology permitted the optimization of the β-CD concentration, time, and temperature. The optimal polyphenol content (PC) [5.8 mg of gallic acid equivalent (GAE)/g of dry matter (DM)] and AC [3146 micromolar trolox equivalent per milliliter (μMTE)] were initially obtained with Syrah cultivar after an extraction of 48 h at 66.6 °C with a 37.7 mg/mL aqueous β-CD solvent. The same PC (5.8 mg of GAE/g of DM) was reached with 50% ethanol/water solvent after 1.65 h. However, a lower AC was found with ethanol (2000 μMTE) compared to β-CD. A comparison of the PC and AC of four different vine shoot cultivars was realized. Our results clearly show the capacity of β-CD to amplify polyphenol extraction from vine shoots.
authors: †Centre d'Analyses et de Recherche, Unité de Recherche Technologie et Valorisation Alimentaire (UR TVA), Faculté des Sciences, Université Saint-Joseph, B.P. 11-514 Riad El Solh, Beirut 1107 2050, Lebanon.|‡Sorbonne Universités, Université de Technologie de Compiègne, Laboratoire Transformations Intégrées de la Matière Renouvelable (UTC/ESCOM, EA 4297 TIMR), Centre de Recherche Royallieu, CS 60 319, Compiègne 60 203 CEDEX, France.
authors: Hiba N
authors: HN
authors: Rajha
authors: †Centre d'Analyses et de Recherche, Unité de Recherche Technologie et Valorisation Alimentaire (UR TVA), Faculté des Sciences, Université Saint-Joseph, B.P. 11-514 Riad El Solh, Beirut 1107 2050, Lebanon.
authors: Stephanie
authors: S
authors: Chacar
authors: †Centre d'Analyses et de Recherche, Unité de Recherche Technologie et Valorisation Alimentaire (UR TVA), Faculté des Sciences, Université Saint-Joseph, B.P. 11-514 Riad El Solh, Beirut 1107 2050, Lebanon.
authors: Charbel
authors: C
authors: Afif
authors: ‡Sorbonne Universités, Université de Technologie de Compiègne, Laboratoire Transformations Intégrées de la Matière Renouvelable (UTC/ESCOM, EA 4297 TIMR), Centre de Recherche Royallieu, CS 60 319, Compiègne 60 203 CEDEX, France.
authors: Eugene
authors: E
authors: Vorobiev
authors: †Centre d'Analyses et de Recherche, Unité de Recherche Technologie et Valorisation Alimentaire (UR TVA), Faculté des Sciences, Université Saint-Joseph, B.P. 11-514 Riad El Solh, Beirut 1107 2050, Lebanon.
authors: Nicolas
authors: N
authors: Louka
authors: †Centre d'Analyses et de Recherche, Unité de Recherche Technologie et Valorisation Alimentaire (UR TVA), Faculté des Sciences, Université Saint-Joseph, B.P. 11-514 Riad El Solh, Beirut 1107 2050, Lebanon.
authors: Richard G
authors: RG
authors: Maroun
mesh_terms: D000975:Antioxidants; D000431:Ethanol; D010936:Plant Extracts / Q000737:chemistry; D018520:Plant Shoots / Q000737:chemistry*; D059808:Polyphenols / Q000302:isolation & purification*; D012997:Solvents; D013045:Species Specificity; D027843:Vitis / Q000737:chemistry*; D047392:beta-Cyclodextrins
chemical_list: D000975:Antioxidants; D010936:Plant Extracts; D059808:Polyphenols; D012997:Solvents; D047392:beta-Cyclodextrins; D000431:Ethanol; C031215:betadex
keywords: high-performance liquid chromatography; polyphenols; response surface methodology; vine shoots; β-cyclodextrin