Antioxidant activity and nutritional assessment of under-utilized medicinal plants

The present study investigates the nutritive and anti-nutritive composition of six species (Allium porrum, Amaranthus spinosis, Apium graveolens, Caralluma edulis, Chenopodium album, Urtica dioica). The studied species contained considerable amount of crude protein (4.53-11.41%), crude fat (1.25-3.74%), vitamin C (7.85-28.09mg 100^-1 g) and β-Carotene (18.29-169.33mg 100^-1g). The mineral profile of Chenopodium album is considered as potential source of Zn (14.51±1.14mg 100-1g), Mn (67.71±0.85mg 100^-1g), Se (8.45±0.49mg 100^-1g) and Fe (182.08±1.52mg 100-1g) and Caralluma edulis as potential source of Fe (7.28± 0.03mg 100^-1g). Ca and P content ranged 63-306mg 100^-1 g and 12-392mg 100^-1 g in all studied plants with exceptionally high level was found in Chenopodium album (1084mg 100-1g) and (3924mg 100^-1g), respectively. Similarly, total phenol, tannin and phytic acid were found in the range of 105-354, 5-90 and 10-85mg 100^-1g, respectively. Total oxalates and soluble oxalates contents were below 200mg 100^-1g in five examined plants with the exception of Chenopodium album (413mg 100^-1g). Antioxidant activity of Caralluma edulis was found maximum while the rest of the examined plants had moderate levels.