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Protein and mineral concentrations in tubers of selected genotypes of wild and cultivated Jerusalem-artichoke (Helianthus tuberosus, asteraceae)

Protein und Mineral Konzentrationen in Knollen von ausgewählten Arten der wilden und kultivierten erdartischocke (Helianthus tuberosus, Asteraceae)

Abstract

Nineteen wild and cultivated genotypes of Jerusalem-artichoke (Helianthus tuberosus) whose tubers are used as food were analyzed for protein and mineral content at three stages of growth. The protein content of the tubers is comparable to or higher than that of other common root-type crops. Adequate macrominerals of calcium, magnesium, and phosphorus were found in Jerusalem-artichoke. Potassium and sodium concentrations were higher than other root crops. Trace elements (manganes, zinc, and copper) were present in adequate amounts, with iron content higher than several other root crops. Wild and cultivated Jerusalem-artichoke genotypes appear to contain adequate protein and minerals to contribute significantly toward a nutritionally balanced diet.

Zusammenfassung

Neunzehn wilde und kultivierte Arten der Erdartischocke (Helianthus tuberosus), deren Knollen als Nahrung benutzt werden, wurden auf Protein und Mineralgehalt in drei Wachstumsstadien analysiert. Der Eiweissgehalt der Knollen ist vergleichbar mit oder höher als der von anderen gewöhnlichen wurzelartigen Gemüsen. Potassium und Sodium Konzentrationen lagen höher als bei anderen Wurzelgemüsen. Spurenelemente (Mangan, Zink und Kupfer) waren in ausreichenden Mengen vorhanden, mit einem Eisengehalt höher als bei verschiedenen anderen Wurzelgemüsen. Wilde and kultivierte Erdartischocken Arten scheinen ausreichend Protein und Minerale zu enthalten, um erheblich zu einer nahrhaften ausgewogenen Ernährung beizutragen.

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Seiler, G.J. Protein and mineral concentrations in tubers of selected genotypes of wild and cultivated Jerusalem-artichoke (Helianthus tuberosus, asteraceae). Econ Bot 44, 322–335 (1990). https://doi.org/10.1007/BF03183914

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Keywords

  • Inulin
  • Economic Botany
  • Less Significant Difference
  • Vegetative Stage
  • Wild Genotype