Level of dried Jew's mallow leaves (%) Phytochemical content DPPH (%) ABTS (μmol trolox 100 g-1)
Chlorophyll a Chlorophyll b β-carotene Total phenolics Total flavonoids
0 (control) nd nd nd 9.10d 72.36e 3.68d 110.40d
1 1.21e 0.46e 0.49e 13.40c 93.24d 5.70c 142.39c
2 1.90d 0.81d 0.69d 14.44bc 104.86cd 6.02c 159.21bc
3 3.53c 1.61c 1.11c 15.44bc 114.57bc 7.42b 166.94bc
4 4.51b 2.03b 1.57b 16.09b 129.78b 8.31b 170.01b
5 5.57a 2.35a 1.80a 30.81a 166.73a 10.30a 217.62a
nd= not determined
Each value is mean of triplicates
Means within a column marked with different letters are significantly different at (p < 0.05).
Table 5: Phytochemicals content (mg 100 g-1 dry weight) and antioxidant activity of the Jew's mallow-rice based extrudates