Costus afer Possesses Carbohydrate Hydrolyzing Enzymes Inhibitory Activity and Antioxidant Capacity In Vitro
Table 2
Extraction solvent effect on the antioxidant capacity of different parts of Costus afer.
Plants parts
Solvent
TPC (mg/g cat. eqv.)
TFC (mg/g rutin eqv.)
FRAP (mg/g cat. eqv.)
DPPH (IC50)
Leaf
HEX
32.04 ± 1.44
18.18 ± 1.19
138.56 ± 0.8
7.69 ± 0.07
Ethyl acetate
22.36 ± 2.48
15.42 ± 0.72
123.03 ± 0.26
13.28 ± 0.43
MeOH
10.5 ± 0.13
2.67 ± 0.06
251.84 ± 2.19
0.19 ± 0.03
H2O
4.35 ± 0.48
1.43 ± 0.04
57.76 ± 0.14
59.07 ± 2.72
Stem
HEX
25.12 ± 0.12
13.48 ± 0.02
114.88 ± 0.7
7.7 ± 0.08
Ethyl acetate
29.83 ± 2.65
2.40 ± 0.08
156.89 ± 0.68
0.41 ± 0.06
MeOH
9.34 ± 0.26
0.79 ± 0.02
103.04 ± 1.75
38.94 ± 0.49
H2O
2.56 ± 0.19
1.11 ± 0.02
46.93 ± 0.76
17.23 ± 0.16
Rhizomes
HEX
31.67 ± 0.61
18.07 ± 0.95
105.3 ± 0.73
5.10 ± 0.03
Ethyl acetate
20.83 ± 0.91
13.73 ± 0.04
139.43 ± 0.37
11.96 ± 0.0
MeOH
3.72 ± 0.29
2.21 ± 0.01
117.51 ± 0.52
4.92 ± 0.2
H2O
3.37 ± 0.06
0.97 ± 0.01
55.04 ± 0.35
40.68 ± 2.2
Solvents effect on antioxidant capacity of plant parts. Means with different letters (a, b, c, and d) within a column of the same plant part are significantly different from each other at . compares the antioxidant capacity of plant parts extracted with the same solvent. Means designated with different symbols are significantly different from one another at .
