Table 6. Vitamin content in leaves and stem of Chenopodium quinoa

Vitamins	Leaves	Stem	t-value
β-Carotene (μg/100 g fresh weight)	44.14.13±281.521)	42.94±2.22	26.893***2)
B1 (thiamin) (μg/100 g fresh weight)	293.35±2.69	43.25±4.00	89.771***
B2 (riboflavin) (μg/100 g fresh weight)	256.54±2.24	50.03±0.47	156.462***
B3 (niacin) (μg/100 g fresh weight)	2.72±0.88	Tr3)	5.332*
B5 (pantothenic acid) (μg/100 g fresh weight)	21.90±0.89	6.44±0.30	28.495***
B6 (pyridoxine) (μg/100 g fresh weight)	21.64±0.31	3.22±0.05	100.497***
B12 (cyanocobalamin) (μg/100 g fresh weight)	ND4)	ND	-
C (ascorbic acid) (mg/100 g fresh weight)	2.02±0.07	ND	53.229***
E (tocopherol) (mg/100 g fresh weight)	2.25±0.76	0.04±0.01	4.996**

Results are presented as mean±SD (n=3).
Significantly different between leaves and stem by the two independent sample t-test (^*p⟨0.05, ^**p⟨0.01, ^***p⟨0.001).
Tr, trace.
ND, not detected.