title: Use of cyclodextrins to recover catechin and epicatechin from red grape pomace.
abstract: The capacity of cyclodextrins (CDs) to extract phenolic compounds from grape pomace was evaluated and compared with that of ethanol/water or aqueous extraction. The extraction method (stirring and ultrasound), temperature and time were also studied. Total phenolic compounds (TPC) and antioxidant activity were measured, and HPLC analysis was used to identify the phenolic compounds. The extracts obtained using the ethanol/water mixture presented the highest TPC content and antioxidant activity, followed by those obtained using CD solutions. The addition of CDs to the extractant agent had a selective effect on the extraction of catechin and epicatechin. The yield of catechin and epicatechin by using aqueous solutions of CDs was similar to that obtained using organic solvents as ethanol.
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain. Electronic address: slmiranda@ucam.edu.
authors.forename: Santiago
authors.initials: S
authors.lastname: López-Miranda
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
authors.forename: Ana
authors.initials: A
authors.lastname: Serrano-Martínez
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
authors.forename: Pilar
authors.initials: P
authors.lastname: Hernández-Sánchez
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
authors.forename: Lucía
authors.initials: L
authors.lastname: Guardiola
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
authors.forename: Horacio
authors.initials: H
authors.lastname: Pérez-Sánchez
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Fortea
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
authors.forename: José Antonio
authors.initials: JA
authors.lastname: Gabaldón
authors.affiliation: Department of Food Technology & Nutrition, UCAM Universidad Católica de Murcia, Avenida de los Jerónimos s/n, 30107 Guadalupe, Murcia, Spain.
authors.forename: Estrella
authors.initials: E
authors.lastname: Núñez-Delicado
mesh_terms: D000975:Antioxidants / Q000032:analysis; D002392:Catechin / Q000302:isolation & purification*; D002851:Chromatography, High Pressure Liquid; D003505:Cyclodextrins; D000431:Ethanol; D005638:Fruit / Q000737:chemistry*; D010636:Phenols / Q000032:analysis; D010936:Plant Extracts / Q000737:chemistry*; D012996:Solutions; D014465:Ultrasonics; D027843:Vitis; D014867:Water
chemical_list: D000975:Antioxidants; D003505:Cyclodextrins; D010636:Phenols; D010936:Plant Extracts; D012996:Solutions; D014867:Water; D000431:Ethanol; D002392:Catechin
keywords: Catechin; Cyclodextrin; Epicatechin; Grape pomace