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Registro Completo |
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Biblioteca(s): |
Epagri-Sede. |
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Data corrente: |
07/05/2014 |
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Data da última atualização: |
07/05/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
UARROTA, V. G.; MORESCO, R.; COELHO, B.; NUNES, E. C.; PERUCH, L. A. M.; NEUBERT, E. O.; ROCHA, M.; MARASCHIN, M. |
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Título: |
Metabolomics combined with chemometric tools (PCA, HCA, PLS-DA and SVM) for screening cassava (Manihot esculenta Crantz) roots during postharvest physiological deterioration. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Food Chemistry, Londres, v. 161, p. 67-78, 2014. |
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Idioma: |
Português |
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Conteúdo: |
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. |
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Palavras-Chave: |
Cassava; Chemometrics; Mandioca; Metabolomics; Postharvest deterioration. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 01785naa a2200265 a 4500
001 1120832
005 2014-05-07
008 2014 bl uuuu u00u1 u #d
100 1 $aUARROTA, V. G.
245 $aMetabolomics combined with chemometric tools (PCA, HCA, PLS-DA and SVM) for screening cassava (Manihot esculenta Crantz) roots during postharvest physiological deterioration.$h[electronic resource]
260 $c2014
520 $aCassava 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.
653 $aCassava
653 $aChemometrics
653 $aMandioca
653 $aMetabolomics
653 $aPostharvest deterioration
700 1 $aMORESCO, R.
700 1 $aCOELHO, B.
700 1 $aNUNES, E. C.
700 1 $aPERUCH, L. A. M.
700 1 $aNEUBERT, E. O.
700 1 $aROCHA, M.
700 1 $aMARASCHIN, M.
773 $tFood Chemistry, Londres$gv. 161, p. 67-78, 2014.
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