Subject
F60 - Physiologie et biochimie végétale, F30 - Génétique et amélioration des plantes, Q04 - Composition des produits alimentaires, Colocasia esculenta, Taro, Rhizome, Composition chimique, Teneur en éléments minéraux, Variation génétique, Variété, Multiplication végétative

Domains
Agriculture

Description

Taro (Colocasia esculenta) is an important root crop in the humid tropics and a valuable source of essential mineral nutrients. In the presented study, we compared the mineral compositions of four main parts of taro corm: the upper, marginal, central and lower (basal) parts. The freeze-dried taro samples were analysed for eleven minerals (K, P, Mg, Ca, Zn, Fe, Mn, Cu, Cd, Pb and Cr). The upper part, which plays a critical role in vegetative propagation based on headsets, contained high levels of P, Mg, Zn, Fe, Mn, Cu and Cd. The central part, which is essential for human nutrition, was characterised by higher concentrations of K, P, Mg, Zn, Fe, Cu and Cd. Ca was concentrated in the lower and marginal parts. The effect of the genotype was significant for more than half of the analysed minerals (i.e., Mg, Ca, Zn, Fe, Mn). (Résumé d'auteur)

Keywords
Taro, Colocasia esculenta, Corms, Chemical composition, Minerals

Language
English (en-GB)

Creators
Mergedus Andrej, Kristl Janja, Ivancic Anton, Sober Andreja, Sustar Vilma, Krizan Tomaz, Lebot Vincent

Contributors

Sources
Food Chemistry 170 (2015) 37–46

Relation
http://dx.doi.org/10.1016/j.foodchem.2014.08.025

Coverage
Vanuatu

Name of newspaper
Elsevier