title: UV-visible scanning spectrophotometry and chemometric analysis as tools for carotenoids analysis in cassava genotypes (Manihot esculenta Crantz).
abstract: In this study, the metabolomics characterization focusing on the carotenoid composition of ten cassava (Manihot esculenta) genotypes cultivated in southern Brazil by UV-visible scanning spectrophotometry and reverse phase-high performance liquid chromatography was performed. Cassava roots rich in β-carotene are an important staple food for populations with risk of vitamin A deficiency. Cassava genotypes with high pro-vitamin A activity have been identified as a strategy to reduce the prevalence of deficiency of this vitamin. The data set was used for the construction of a descriptive model by chemometric analysis. The genotypes of yellow-fleshed roots were clustered by the higher concentrations of cis-β-carotene and lutein. Inversely, cream-fleshed roots genotypes were grouped precisely due to their lower concentrations of these pigments, as samples rich in lycopene (red-fleshed) differed among the studied genotypes. The analytical approach (UV-Vis, HPLC, and chemometrics) used showed to be efficient for understanding the chemodiversity of cassava genotypes, allowing to classify them according to important features for human health and nutrition.
authors.forename: Rodolfo
authors.initials: R
authors.lastname: Moresco
authors.forename: Virgílio Gavicho
authors.initials: VG
authors.lastname: Uarrota
authors.forename: Aline
authors.initials: A
authors.lastname: Pereira
authors.forename: Maíra Maciel
authors.initials: MM
authors.lastname: Tomazzoli
authors.forename: Eduardo da C
authors.initials: Eda C
authors.lastname: Nunes
authors.forename: Luiz Augusto Martins
authors.initials: LA
authors.lastname: Peruch
authors.forename: Jussara
authors.initials: J
authors.lastname: Gazzola
authors.forename: Christopher
authors.initials: C
authors.lastname: Costa
authors.forename: Miguel
authors.initials: M
authors.lastname: Rocha
authors.forename: Marcelo
authors.initials: M
authors.lastname: Maraschin
mesh_terms: D005504:Food Analysis; D005838:Genotype; D006801:Humans; D002365:Manihot / Q000737:chemistry* / Q000235:genetics; D018517:Plant Roots / Q000737:chemistry* / Q000235:genetics; D013056:Spectrophotometry, Ultraviolet; D019207:beta Carotene / Q000032:analysis*
chemical_list: D019207:beta Carotene