Minerals and trace elements in a collection of wheat landraces from the Canary Islands

Phosphorous, Na, K, Ca, Mg, Fe, Cu, Zn, Mn and Se were determined in eighteen wheat landraces from Canary Islands and a commercial cultivar. The mean values obtained were: P (2370 ± 333 mg/kg); Na (102 ± 52 mg/kg); K (4363 ± 386 mg/kg); Ca (351 ± 62 mg/kg); Mg (1163 ± 155 mg/kg); Fe (40.0 ± 5.5 mg/k...

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Bibliographic Details
Published in:Journal of food composition and analysis 2011-12, Vol.24 (8), p.1081-1090
Main Authors: Rodríguez, Lía Hernández, Morales, Desireé Afonso, Rodríguez, Elena Rodríguez, Romero, Carlos Díaz
Format: Article
Language:English
Subjects:
Biodiversity
Biological and medical sciences
Cereal
Cereal and baking product industries
Cultivar difference
Diets
Discriminant analysis
Food analysis
Food composition
Food industries
Fundamental and applied biological sciences. Psychology
General aspects
Genetic biofortification
Mediterranean diet
Methods of analysis, processing and quality control, regulation, standards
Mineral composition
Organic agriculture
Triticum aestivum
Wheat landraces ( Triticum sp.)
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Summary:Phosphorous, Na, K, Ca, Mg, Fe, Cu, Zn, Mn and Se were determined in eighteen wheat landraces from Canary Islands and a commercial cultivar. The mean values obtained were: P (2370 ± 333 mg/kg); Na (102 ± 52 mg/kg); K (4363 ± 386 mg/kg); Ca (351 ± 62 mg/kg); Mg (1163 ± 155 mg/kg); Fe (40.0 ± 5.5 mg/kg); Cu (2.68 ± 0.93 mg/kg); Zn (32.1 ± 2.9 mg/kg); Mn (22.1 ± 3.5 mg/kg); Se (67.7 ± 40.4 μg/kg). There were differences ( P < 0.05) in the mineral and trace element between the analyzed cultivars, and between the species and subspecies of wheats. Therefore, the Triticum aestivum species had higher mean P, Mg, Fe, Cu, Zn and Mn concentrations, and a lower mean Se concentration, than Triticum turgidum species. The environment and agronomic practices could affect the genetic information of the seeds determining changes in the mineral and trace element composition. The wheat represents an excellent source of Mn (over 100% of recommended dietary intake, RDI), as well as P, Mg, Fe, Cu, Zn and Se (20–50% of RDI). Many correlations were found between the parameters analyzed emphasizing the Cu–Mg ( r = 0.691) and Cu–Mn ( r = 0.619) correlations. Linear discriminant analysis allowed a good differentiation of the wheat samples according to the cultivar (89.7% of wheat samples classified correctly).
ISSN:0889-1575
1096-0481
DOI:10.1016/j.jfca.2011.04.016