Table 3. Organic acid content in leaves and stem of Chenopodium quinoa

Components (mg% fresh weight)	Leaves	Stem	t-value
Malic acid	ND1)	ND	-
Citric acid	3.57±0.012)	6.41±0.07	−65.762***3)
Oxalic acid	ND	ND	-
Acetic acid	428.40±16.39	107.76±2.19	33.590**
Formic acid	ND	ND	-
Succinic acid	ND	ND	-

ND, not detected.
Results are presented as mean±SD (n=3).
Significantly different between leaves and stem by the two independent sample t-test (^**p=0.01, ^***p=0.001).