Nutritional Composition, -Glucosidase Inhibitory and Antioxidant Activities of Ophiopogon japonicus Tubers

Table 7

Antioxidant activity of O. japonicus tubers extracts determined by the DPPH, ABTS, FRAP, and CUPRAC methods.

Sample	DPPH (mmol TE/kg)	ABTS (mmol TE/kg)	FRAP (mmol TE/kg)	CUPRAC (mmol TE/kg)
ME	12.1 ± 2.0	25.9 ± 3.4	20.7 ± 2.7	46.7 ± 4.6
CME	31.0 ± 1.1	85.4 ± 3.7	53.8 ± 1.6	104.1 ± 2.8
nBF	62.6 ± 3.7	119.7 ± 1.7	161.9 ± 3.1	247.9 ± 3.6
OJP	4.2 ± 1.1	13.0 ± 2.3	8.2 ± 3.4	18.1 ± 4.7

Values are expressed as mean ± SD of three determinations.
Means within a column with different letters (a~d) indicate significant differences at .