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. 2021 Apr 2;11(6):471–480. doi: 10.1016/j.jtcme.2021.03.004

Table 1.

Chemical screening of the ethanolic extract of maca root powder.

Compounds evaluated Reactive Result
phenols Ferric chloride ++ (2-OH)
lipids Iodine +
peptides, aminoacids Ninhidrine +
carbohydrates Molisch ++
anthraquinones Bornträger –
steroids Liebermann-Burchard +
triterpenes Liebermann-Burchard –
flavonoids Shinoda +
tannins Gelatin –
alkaloids Dragendorff ++