title: [Effect of ripening and drying on pro-vitamin A carotenoid content in pepper (Capsicum annuum var. Anaheim)].
abstract: The content of the principal carotenes with biological activity (alpha-, beta, gamma-carotene and beta-criptoxantine) in green pepper (Capsicum annuum var. Anaheim) was determined in order to investigate the vitamin A content during the traditional process of ripening and drying. The analytical technique used was high pressure liquid chromatography (HPLC) with a Novapack C18 column and acetonitrile/methanol/tetrahydrofuran (58V:35V:7V) as a mobile phase. The results showed differences in vitamin A activity of 7.2 +/- 0.8, 51.1 +/- 2.4 and 55.3 +/- 1.2 micrograms of RE/g dry matter for immature, mature and dry pepper fruit respectively (p < 0.05). Approximately 95% of total activity was due to beta-carotene being synthesized faster than the other carotenes under study during the ripening process. Total vitamin A activity reached its highest value at 14 days after harvest (2738.8 +/- 128.6 micrograms RE/100 g of edible portion), with a decrease in activity with time.
authors.affiliation: Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD, A.C.), Hermosillo, Sonora, México.
authors.forename: S Y
authors.initials: SY
authors.lastname: Moya
authors.forename: L A
authors.initials: LA
authors.lastname: Mejía
authors.forename: E
authors.initials: E
authors.lastname: González de Mejía
authors.forename: F A
authors.initials: FA
authors.lastname: Vázquez
mesh_terms: D002338:Carotenoids / Q000032:analysis*; D002851:Chromatography, High Pressure Liquid; D005504:Food Analysis; D014675:Vegetables / Q000737:chemistry*; D014801:Vitamin A / Q000032:analysis*
chemical_list: D014801:Vitamin A; D002338:Carotenoids
vernacular_title: Efecto de la maduración y el secado en el contenido de carotenoides pro-vitamina A en chile (Capsicum annuum var. Anaheim).