HPLC-Profiles of Tocopherols, Sugars, and Organic Acids in Three Medicinal Plants Consumed as Infusions

Table 1

Composition of P. tridentatum, G. globosa, and C. citratus in tocopherols, sugars, and organic acids (mean ± SD).

	Pterospartum tridentatum	Gomphrena globosa	Cymbopogon citratus
-Tocopherol	7.21 ± 0.01^b	0.38 ± 0.04^c	56.05 ± 2.47^a
-Tocopherol	5.81 ± 0.56^a	3.02 ± 0.08^b	4.52 ± 0.76^a
-Tocopherol	0.50 ± 0.10^b	5.20 ± 0.01^a	nd
Total tocopherols (g/g dw)	13.10 ± 1.08^b	8.60 ± 0.10^c	60.57 ± 3.23^a
Fructose	83.23 ± 7.71^a	18.30 ± 1.27^b	7.35 ± 1.06^c
Glucose	26.70 ± 1.13^b	15.65 ± 2.62^c	29.75 ± 0.92^a
Sucrose	23.75 ± 1.34^b	nd	41.45 ± 0.21^a
Total sugars (mg/g dw)	133.70 ± 7.50^a	33.95 ± 3.89^c	78.55 ± 2.19^b
Oxalic acid	1.39 ± 0.02^b	10.64 ± 0.04^a	1.22 ± 0.15^b
Malic acid	3.23 ± 0.90^b	12.33 ± 0.55^a	2.23 ± 0.10^b
Ascorbic acid	nd	nd	0.24 ± 0.01
Shikimic acid	0.71 ± 0.01	nd	nd
Citric acid	5.99 ± 0.35^a	2.40 ± 0.01^b	nd
Succinic acid	nd	nd	10.29 ± 0.34
Fumaric acid	nd	0.28 ± 0.01^b	0.49 ± 0.01^a
Total organic acids (mg/g dw)	11.32 ± 1.26^c	25.65 ± 0.51^a	13.98 ± 0.47^b

nd: not detected; dw: dry weight. In each row, different letters mean significant differences (P < 0.05).