title: Effect of water deficit and domestic storage on the procyanidin profile, size, and aggregation process in pear-jujube (Z. jujuba) fruits.
abstract: No information exists on the proanthocyanidin content of pear-jujube (Ziziphus jujuba Mill) fruit, their polymeric types and sizes, and their self-aggregation, or on the effect of different water deficit levels during the fruit maturation period on these compounds. Two trimers, two tetramers, and six B type procyanidin pentamers were identified and quantified for the first time. Water deficit increased the content of procyanidins of low molecular mass, improving their potential bioavailability and possible physiological effects on human health. The tendency of procyanidins to self-aggregate was similar in the edible portion and pit, and was not affected by water deficit. The procyanidin content of fruit from well watered trees increased during domestic cold storage, whereas the fruits from trees suffering severe water stress lost some of their procyanidin content.
authors.affiliation: Department of Food Science and Technology, CEBAS-CSIC, P.O. Box 164, Espinardo, E-30100 Murcia, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Collado-González
authors.forename: Z N
authors.initials: ZN
authors.lastname: Cruz
authors.forename: P
authors.initials: P
authors.lastname: Rodríguez
authors.forename: A
authors.initials: A
authors.lastname: Galindo
authors.forename: F G
authors.initials: FG
authors.lastname: Díaz-Baños
authors.forename: J
authors.initials: J
authors.lastname: García de la Torre
authors.forename: F
authors.initials: F
authors.lastname: Ferreres
authors.forename: S
authors.initials: S
authors.lastname: Medina
authors.forename: A
authors.initials: A
authors.lastname: Torrecillas
authors.forename: A
authors.initials: A
authors.lastname: Gil-Izquierdo
mesh_terms: D000268:Adhesiveness; D000975:Antioxidants / Q000032:analysis / Q000737:chemistry / Q000378:metabolism*; D044946:Biflavonoids / Q000032:analysis / Q000096:biosynthesis* / Q000737:chemistry; D002392:Catechin / Q000032:analysis / Q000096:biosynthesis* / Q000737:chemistry; D055864:Droughts; D063427:Food Quality; D061353:Food Storage; D005638:Fruit / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism*; D044945:Proanthocyanidins / Q000032:analysis / Q000096:biosynthesis* / Q000737:chemistry; D013030:Spain; D013499:Surface Properties; D014867:Water / Q000378:metabolism*; D031957:Ziziphus / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism*
chemical_list: D000975:Antioxidants; D044946:Biflavonoids; D044945:Proanthocyanidins; D014867:Water; C017674:procyanidin; D002392:Catechin