title: Tocochromanols composition in kernels recovered from different apricot varieties: RP-HPLC/FLD and RP-UPLC-ESI/MS(n) study.
abstract: Composition of tocochromanols in kernels recovered from 16 different apricot varieties (Prunus armeniaca L.) was studied. Three tocopherol (T) homologues, namely α, γ and δ, were quantified in all tested samples by an RP-HPLC/FLD method. The γ-T was the main tocopherol homologue identified in apricot kernels and constituted approximately 93% of total detected tocopherols. The RP-UPLC-ESI/MS(n) method detected trace amounts of two tocotrienol homologues α and γ in the apricot kernels. The concentration of individual tocopherol homologues in kernels of different apricots varieties, expressed in mg/100 g dwb, was in the following range: 1.38-4.41 (α-T), 42.48-73.27 (γ-T) and 0.77-2.09 (δ-T). Moreover, the ratio between individual tocopherol homologues α:γ:δ was nearly constant in all varieties and amounted to approximately 2:39:1.
authors.affiliation: a Latvia State Institute of Fruit-Growing , Graudu 1, Dobele LV-3701 , Latvia.
authors.forename: Paweł
authors.initials: P
authors.lastname: Górnaś
authors.forename: Inga
authors.initials: I
authors.lastname: Mišina
authors.forename: Ilze
authors.initials: I
authors.lastname: Grāvīte
authors.forename: Arianne
authors.initials: A
authors.lastname: Soliven
authors.forename: Edīte
authors.initials: E
authors.lastname: Kaufmane
authors.forename: Dalija
authors.initials: D
authors.lastname: Segliņa
mesh_terms: D002851:Chromatography, High Pressure Liquid; D027861:Prunus / Q000737:chemistry*; D024505:Tocopherols / Q000302:isolation & purification*; D024502:alpha-Tocopherol / Q000302:isolation & purification*; D024504:gamma-Tocopherol / Q000302:isolation & purification*
chemical_list: D024504:gamma-Tocopherol; D024502:alpha-Tocopherol; C479072:delta-tocopherol; D024505:Tocopherols
keywords: Prunus armeniaca L; RP-HPLC/FLD; RP-UPLC-ESI/MSn; apricot kernels; tocochromanols; tocopherols; varieties