Background
Methods
Plant materials
Reagents and instrumentation
Preparation of extracts
Antioxidant assays
DPPH assay
FRAP assay
GC-MS analysis
Evaluation of antioxidant assays
Statistical analysis
Results
Antioxidant capacity of rhizome and petiole extracts
Separation and identification of rhizome extracts
No. | RT | Name | Molecular Formula | molecular weight | Area | POA (%) |
---|---|---|---|---|---|---|
1 | 16.56 | D-Allose | C6H10O5
| 162 | 68174247.68 | 1.85 |
2 | 20.24 | Phthalic acid, diisobutyl ester (PADE) | C16H22O4
| 278 | 101990836.36 | 2.77 |
3 | 22.44 | 1-Octadecanol | C18H38O | 270 | 5668336.18 | 0.15 |
4 | 22.96 | Oleic Acid | C18H34O2
| 282 | 57474673.65 | 1.56 |
5 | 23.17 | Octadecanoic acid | C18H36O2
| 284 | 15872716.84 | 0.43 |
6 | 26.29 | 1,2-Benzenedicarboxylic acid, diisooctyl ester (BADE) | C24H38O4
| 390 | 82848910.41 | 2.25 |
7 | 30.56 | 2,2'-Benzylidenebis(3-methylbenzofuran) | C24H20N2O | 352 | 18407733.56 | 0.50 |
8 | 35.04 | Campesterol | C28H48O | 400 | 8076867.21 | 0.22 |
9 | 35.89 | Podophyllotoxin, deoxy (PODD) | C22H22O7
| 398 | 758866242.2 | 20.59 |
10 | 37.19 | β-Sitosterol | C29H50O | 414 | 59476314.62 | 1.61 |
11 | 38.05 | Naphtho[2,3-c]furan-1(3H)-one,4-(3,4-dimethoxyphenyl)-3a,4,9,9a-tetrahydro-6,7-dimethoxy-, [3aR-(3a?4?9a?]- | C22H24O6
| 384 | 24682996.63 | 0.67 |
12 | 40.77 | Podophyllotoxin (Podofilox) (POD) | C22H22O8
| 414 | 2484773776 | 67.41 |
No. | RT | Name | Molecular formula | Molecular weight | Area | POA (%) |
---|---|---|---|---|---|---|
1 | 14.25 | d-Gala-l-ido-octonic amide | C8H17NO8
| 255 | 651876.57 | 0.75 |
2 | 16.94 | Sucrose | C12H22O11
| 342 | 2221794.92 | 2.55 |
3 | 20.75 | Phthalic acid, diisobutyl ester (PADE) | C16H22O4
| 278 | 1067190.30 | 1.23 |
4 | 21.12 | 9-Hexadecenoic acid | C16H30O2
| 254 | 577281.13 | 0.66 |
5 | 21.81 | n-Hexadecanoic acid | C16H32O2
| 256 | 4151490.41 | 4.77 |
6 | 22.04 | Hexadecanoic acid, ethyl ester | C18H36O2
| 284 | 2383067.34 | 2.74 |
7 | 22.81 | Retinol | C20H30O | 286 | 660693.34 | 0.76 |
8 | 23.64 | 9,12-Octadecadienoic acid, ethyl ester | C20H36O2
| 308 | 2368466.98 | 2.72 |
9 | 23.82 | Octadec-9-enoic acid | C18H34O2
| 282 | 1549676.99 | 1.78 |
10 | 26.52 | Hexadecanoic acid, 2-(octadecyloxy) ethyl ester | C36H72O3
| 552 | 1112593.91 | 1.28 |
11 | 26.78 | 1,2-Benzenedicarboxylic acid, diisooctyl ester (BADE) | C24H38O4
| 390 | 6141357.57 | 7.05 |
12 | 35.99 | Podophyllotoxin, deoxy (PODD) | C22H22O7
| 398 | 18255949.66 | 20.97 |
13 | 37.60 | β-Sitosterol | C29H50O | 414 | 1063814.09 | 1.22 |
14 | 39.00 | Ethyl iso-allocholate | C26H44O5
| 436 | 673221.09 | 0.77 |
15 | 40.01 | Polyneuridine | C21H24N2O3
| 352 | 24387006.54 | 28.01 |
16 | 40.23 | Podophyllotoxin (Podofilox) (POD) | C22H22O8
| 414 | 19787459.99 | 22.73 |