Table 2.

Flavonoids content of spice extracts expressed as mg quercetin eq/100 g spices

Spices	Aqueous extracts	Ethanol/water (80/20, v/v)	Methanol/water/acetic acid (70/25/5, v/v/v)	HCl/methanol (1%, v/v)
X. africana fruit	3.22 ± 0.61b	119.23 ± 4.11d	146.66 ± 4.15b	649.88 ± 2.46c
A. sulcatum fruit	NF	47.98 ± 3.49a	NF	NF
A. sulcatum bulb	NF	82.04 ± 3.88b	0.001 ± 0.000a	13.26 ± 0.1a
H. zenkeri bark	1.79 ± 0.34a	93.023 ± 3.58c	116.56 ± 5.03c	255.69 ± 2.46b

Results were expressed as mean ± standard deviation

NF Not found

Superscript letters (a–d) represents the significant differences (p < 0.05) between the rows and within columns