. 2023 Aug 7;9(8):e18999. doi: 10.1016/j.heliyon.2023.e18999

Table 1.

Mean concentration of macro- and micro-nutrients in mg/100 g (dw) ± standard deviation.

Plant samples	Mg	Ca	Fe	K	Pb	Zn
Acalypha rhomboidea	10.23 ± 0.14^cd	1170.14 ± 17.00^g	8.21 ± 0.04^h	2268.20 ± 15.18^f	0.99 ± 0.11^ab	1.38 ± 0.01^f
Asystasia gangetica	10.42 ± 0.15^d	532.39 ± 25.76^e	11.20 ± 0.09^j	2180.15 ± 19.20^f	1.22 ± 0.07^b	1.82 ± 0.01^h
Crassoccephalum sacrobasis	9.83 ± 0.07^ab	150.12 ± 1.82^a	9.17 ± 0.03ⁱ	3346.84 ± 486.86^g	0.98 ± 0.04^ab	2.36 ± 0.03ⁱ
Crotalaria ochroleuca	10.05 ± 0.07^bc	122.18 ± 10.69^a	5.06 ± 0.03^e	839.48 ± 39.70^bc	1.77 ± 0.13^c	1.45 ± 0.01^g
Heterotis rotundifolia	9.68 ± 0.06^a	223.46 ± 9.19^b	6.13 ± 0.02^f	782.74 ± 4.90^bc	0.94 ± 0.03^ab	0.95 ± 0.01^d
Hibiscus cannabinus	9.48 ± 0.19^a	458.13 ± 20.47^d	4.31 ± 0.10^c	518.65 ± 2.92^ab	1.12 ± 0.25^b	0.98 ± 0.01^d
Hibiscus sp.	9.66 ± 0.11^a	576.40 ± 23.85^e	11.21 ± 0.08^j	532.28 ± 9.77^ab	0.87 ± 0.22^ab	0.73 ± 0.01^c
Hibiscus surattensis	10.23 ± 0.07^cd	835.88 ± 10.22^f	6.69 ± 0.03^g	288.37 ± 1.00^a	0.69 ± 0.11^a	0.55 ± 0.01^d
Ipomoea eriocarpa	9.81 ± 0.13^ab	118.51 ± 5.82^a	4.75 ± 0.04^d	1494.40 ± 14.92^de	1.19 ± 0.20^b	0.62 ± 0.02^b
Maerua angolensis	10.11 ± 0.20b^cd	523.73 ± 46.63^e	3.82 ± 0.04^b	1554.60 ± 13.65^e	0.98 ± 0.05^ab	0.52 ± 0.02^a
Senna obtusifolia	9.77 ± 0.02^ab	1265.30 ± 14.94^h	3.29 ± 0.02^a	1112.13 ± 4.49^cd	0.87 ± 0.06^ab	1.34 ± 0.01^f
Vigna membranacea	10.28 ± 0.07^cd	351.60 ± 11.31^c	4.42 ± 0.09^c	914.63 ± 19.13b^c	0.87 ± 0.02^ab	1.26 ± 0.01^e

All tabulated mean ± standard deviation (s.d) values were derived from triplicate sample tests. Turkeys test at 95% confidence level and statistical significance level was taken at p < 0.05. The superscript letters a, b, c, d, e, f, g, h, i shown in the table denote significant differences (p < 0.05). Mercury and cadmium were below detectable limits and omitted from table. A one-way ANOVA revealed that there was a statistically significant difference in mean inorganic components among the twelve wild edible plants: Mg [F_{(11, 23)} = 17.73, p = 0.00)]; Ca [F_{(11, 23)} = 1088.94, p = 0.00], Fe [F_(11,23) = 7064.15, p = 0.00], K [F_(11,23) = 115.42, p = 0.00], Pb [F_(11,23) = 12.48, p = 0.00], and Zn [F_(11,23) = 4400.87, p = 0.00].