Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/31841

TitleMetabolomics combined with chemometric tools (PCA, HCA, PLS-DA and SVM) for screening cassava (Manihot esculenta Crantz) roots during postharvest physiological deterioration
Author(s)Uarrota, Virgílio Gavicho
Moresco, Rodolfo
Coelho, Bianca
Nunes, Eduardo da Costa
Peruch, Luiz Augusto Martins
Neubert, Enilto de Oliveira
Rocha, Miguel
Maraschin, Marcelo
KeywordsCassava
Postharvest deterioration
Chemometrics
Metabolomics
Issue date1-Jan-2014
PublisherElsevier B.V.
JournalFood Chemistry
CitationUarrota, V. G.; Moresco, R.; Coelho, B.; Nunes, E. C.; Peruch, L. A. M.; Neubert, E. O.; Rocha, Miguel; Maraschin, Marcelo, Metabolomics combined with chemometric tools (PCA, HCA, PLS-DA and SVM) for screening cassava (Manihot esculenta Crantz) roots during postharvest physiological deterioration. Food Chemistry, 161, 67-78, 2014
Abstract(s)Cassava roots are an important source of dietary and industrial carbohydrates and suffer markedly from postharvest physiological deterioration (PPD). This paper deals with metabolomics combined with chemometric tools for screening the chemical and enzymatic composition in several genotypes of cassava roots during PPD. Metabolome analyses showed increases in carotenoids, flavonoids, anthocyanins, phenolics, reactive scavenging species, and enzymes (superoxide dismutase family, hydrogen peroxide, and catalase) until 3–5 days postharvest. PPD correlated negatively with phenolics and carotenoids and positively with anthocyanins and flavonoids. Chemometric tools such as principal component analysis, partial least squares discriminant analysis, and support vector machines discriminated well cassava samples and enabled a good prediction of samples. Hierarchical clustering analyses grouped samples according to their levels of PPD and chemical compositions.
TypeArticle
URIhttp://hdl.handle.net/1822/31841
DOI10.1016/j.foodchem.2014.03.110
ISSN0308-8146
e-ISSN0308-8146
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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