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Clinical Studies (Return to Clinical
Studies page)
DANDELION EXTRACT – A
SOURCE OF DIETARY IRON
Rozycki VR, Baigorria CM,
Freyre MR, Bernard CM, Zannier MS, Charpentier M. (1997). Nutrient content in vegetable species
from the Argentine Chaco. Arch Latinoam Nutr.
47(3):265-70.
The nutrient composition was
investigated in wild vegetable products grown in the Argentine Chaco. The evaluated species
were: Rumex sp., Amaranthus quitensis and Taraxacum officinale (Dandelion), as vegetable leaves;
Morrenia odorata, Passiflora sp. (in two ripening stages) and Eugenia myrciantes as fruits; and
the pollen of the flowers of Typha domingensis. Sampling was performed during three harvesting
seasons. Values for protein, total lipid, crude fiber, ash, reducing and total sugar, starch,
total pectin and computed energy value are given. Mineral values are reported for: calcium,
sodium, potassium, magnesium, iron and phosphorus. Vitamin values are given for ascorbic acid
and beta-carotene. Comparison of two means test was employed to test the significant differences
among the means. In the wild leaves, higher concentrations of the macronutrients were found
thean in commercially exploited cultivars such as swiss chard, spinach and chicory. Also higher
energy value: 33-60 Kcal against 14-30 Kcal/100 g. Unusually high levels of calcium, iron and
magnesium were found for Amaranthus quitensis (274.3, 6.4 and 136.2 mg/100 g, respectively) and
48.9 mg/100 g of ascorbic acid were found in Rumex sp. As a rule, all these wild fruits
exhibited higher amounts of macronutrients and energy value than cultivated species such as
apples (Mallus sp). The most interesting results were for T. domingensis pollen regarding its
macro and micronutrient composition with an energetic value of 287.7 Kcal/100 g.
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