In Vitro Hypoglycemic and Antioxidant Activities of Dichloromethane Extract of Xerophyta spekei

Table 1

IC₅₀ values of the DCM extract of X. spekei against antioxidant activity and α-amylase activity.

Activity	IC50 (μg/mL)
	Extract	Ascorbic acid	Gallic acid	EDTA	Acarbose
DPPH	1.66 ± 0.06^A	0.98 ± 0.03^B	—	—	—
Hydroxyl radical	0.28 ± 0.03^A	—	0.049 ± 0.01^A	—	—
Ferric-reducing	0.60 ± 0.002^A	0.70 ± 0.001^B	—	—	—
Iron chelating	70.08 ± 0.24^A	—	—	42.54 ± 1.60^B	—
Antilipid peroxidation	287.0 ± 8.40^A	219.3 ± 0.77^B	—		—
Hydrogen peroxide	248.1 ± 1.65^A	—	—	177.0 ± 0.78^B	—
α-amylase	525.9 ± 12.34^A	—	—		475.1 ± 9.115^A

Values are expressed as mean ± standard error of the mean (n = 3). Values which do not share uppercase superscript letters along the rows are significantly different Data are analyzed through the unpaired t-test.