title: Stereochemical isomers composition and vitamin A value of Brazilian palm oils.
abstract: Carotenoids pigments in crude and refined oils from Brazilian palm were analyzed. Beta-carotene was the principal fraction detected in all samples, varying from 142.6 micrograms/g to 314.25 micrograms/g in crude palm oils; from 132.55 micrograms/g to 612.16 micrograms/g in Brazilian palm kernels; and from 139.4 to 168.90 micrograms/g in refined palm oils. Alfa-carotene levels were 44.67 micrograms/g and 125.32 micrograms/g in the crude palm oil; 85.99 micrograms/g to 240.99 in palm kernel and 52.22 to 63.91 micrograms/g in refined palm oils. All-trans beta-carotene was the most important isomer; 9-cis and 13-cis alfa and beta-carotenes were also found. Vitamin A values were 2,065 and 10,255 RE in 100 g sample.
authors.affiliation: Dpto. de Nutrición, Universidad Federal de Paraiba-Joâo Pessoa, Brasil.
authors.forename: I N
authors.initials: IN
authors.lastname: Trigueiro
authors.forename: M de V
authors.initials: Mde V
authors.lastname: Penteado
mesh_terms: D001938:Brazil; D002338:Carotenoids / Q000032:analysis* / Q000737:chemistry*; D009753:Nutritive Value; D009754:Nuts / Q000737:chemistry*; D010938:Plant Oils / Q000032:analysis* / Q000737:chemistry*; D013237:Stereoisomerism; D014801:Vitamin A / Q000737:chemistry*; D019207:beta Carotene / Q000032:analysis / Q000737:chemistry
chemical_list: D010938:Plant Oils; D019207:beta Carotene; D014801:Vitamin A; D002338:Carotenoids