Journal
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
Volume 46, Issue -, Pages 43-49Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jfca.2015.10.008
Keywords
Sweet potato; Ipomoea batatas (L.) Lam; Multidimensional scaling; Composition; Mineral and trace elements; Dietary intake; Food analysis; Food composition
Categories
Funding
- European Project Interreg III B Germobanco Agricola de la Macaronesia
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Proximate composition (moisture, protein, starch, amylose, total dietary fibre, Brix degree, fat, ash, ascorbic acid, phenolic compounds, acidity and pH), minerals (Na, K, Ca, Mg) and trace elements (Fe, Cu, Mn, Zn) were determined in 30 cultivars of sweet potato from the Canary Islands (Spain). There were significant differences between the sweet potato cultivars for all the parameters studied; in addition, both the island of production and the cultivation cycle showed a noteworthy influence on the mineral and trace element composition of the tubers. It is worth mentioning that the consumption of sweet potatoes contributes relatively high intake levels of vitamin C, phenolic compounds and mineral and trace elements (K, Mg, Ca, Mn, Fe and Cu). Application of multidimensional scaling (MDS) correctly classified the sweet potato cultivars according to the island of production and maturation cycle. (C) 2015 Elsevier Inc. All rights reserved.
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