Phytochemicals determination and classification in purple and red fleshed potato tubers by analytical methods and near infrared spectroscopy
Fecha
2016Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Impacto
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10.1002/jsfa.7294
Resumen
BACKGROUND: Over the last two decades, the attractive colours and shapes of pigmented tubers and the increasing concern
about the relationship between nutrition and health have contributed to the expansion of their consumption and a specialty
market. Thus, we have quantified the concentration of health promoting compounds such as soluble phenolics, monomeric
anthocyanins, carotenoids, vitamin ...
[++]
BACKGROUND: Over the last two decades, the attractive colours and shapes of pigmented tubers and the increasing concern
about the relationship between nutrition and health have contributed to the expansion of their consumption and a specialty
market. Thus, we have quantified the concentration of health promoting compounds such as soluble phenolics, monomeric
anthocyanins, carotenoids, vitamin C, and hydrophilic antioxidant capacity, in a collection of 18 purple- and red-fleshed potato
accessions.
RESULTS: Cultivars and breeding lines high in vitamin C, such as Blue Congo, Morada and Kasta, have been identified. Deep
purple cultivars Violet Queen, Purple Peruvian and Vitelotte showed high levels of soluble phenolics, monomeric anthocyanins,
and hydrophilic antioxidant capacity, whereas relatively high carotenoid concentrations were found in partially yellow coloured
tubers, such as Morada, Highland Burgundy Red, and Violet Queen.
CONCLUSION: The present characterisation of cultivars and breeding lines with high concentrations of phytochemicals is an
important step both to support the consideration of specialty potatoes as a source of healthy compounds, and to obtain new
cultivars with positive nutritional characteristics. Moreover, by using near infrared spectroscopy a non-destructive identification
and classification of samples with different levels of phytochemicals is achieved, offering an unquestionable contribution to the
potato industry for future automatic discrimination of varieties. [--]
Materias
Soluble phenolics,
Monomeric anthocyanins,
Carotenoids,
Vitamin C,
NIRS,
Solanum tuberosum L
Editor
Wiley
Publicado en
Journal of the Science of Food and Agriculture, 2016; 96: 1888–1899
Departamento
Universidad Pública de Navarra. Departamento de Proyectos e Ingeniería Rural /
Nafarroako Unibertsitate Publikoa. Landa Ingeniaritza eta Proiektuak Saila
Versión del editor
Entidades Financiadoras
This work was financed within the frame of INIA’s project
RTA2013-00006-C03 and the Basque Government.