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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 (redfleshed) 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.
AuthorsRodolfo Moresco, Virgílio Gavicho Uarrota, Aline Pereira, Maíra Maciel Tomazzoli, Eduardo da C Nunes, Luiz Augusto Martins Peruch, Jussara Gazzola, Christopher Costa, Miguel Rocha, Marcelo Maraschin
JournalJournal of integrative bioinformatics (J Integr Bioinform) Vol. 12 Issue 4 Pg. 280 ( 2015) ISSN: 1613-4516 [Electronic] Germany
PMID26673931 (Publication Type: Journal Article)

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