Table 2.
The phytochemical components isolated from hydro-alcoholic extract of rhizome and leaf of C. dactylon submitted to different drying methods
| Compound | Formula | RIa | SHD | SOD | OD30 | OD40 | OD50 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rhizome | Leaf | Rhizome | Leaf | Rhizome | Leaf | Rhizome | Leaf | Rhizome | Leaf | |||
| 2,3-Dihydrobenzofuran | C8H8O | 396 | – | 0.24 | – | – | 1.2 | 0.8 | – | tr. | 13.44 | tr. |
| 5-Hydroxymethylfurfural (5-HMF) | C6H6O3 | 467 | 27.9 | 1.37 | 18.0 | 2.08 | 9.07 | 1.11 | 7.28 | 1.05 | 5.12 | 0.85 |
| 2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one (DDMP) | C6H8O4 | 600 | 3.09 | 0.58 | – | 2.93 | 0.82 | 1.26 | 4.68 | 2.45 | 4.31 | 3.78 |
| Ethyl pentadecanoic acid | C17H34O2 | 814 | 0.63 | 0.64 | – | – | – | – | – | 1.38 | – | – |
| Ethyl palmitate | C18H36O2 | 838 | 22.1 | 31.99 | 26.28 | 29.88 | 34.48 | 31.69 | 39.48 | 31.5 | 31.29 | 31.4 |
| Ethyl linoleate | C20H36O2 | 857 | 22.57 | 39.78 | 20.17 | 38.15 | 22.6 | 34.8 | 21.17 | 24.74 | 19.58 | 19.52 |
| Palmitic acid | C16H32O2 | 873 | 2.68 | 1.89 | 1.61 | 3.07 | 6.02 | 2.99 | 2.73 | 1.47 | – | 1.46 |
| Furfural | C5H40O2 | 899 | 1.42 | – | – | – | – | – | – | – | – | – |
| Phytol | C20H40O | 974 | – | 3.42 | – | 1.67 | – | 2.88 | – | tr. | – | 2.14 |
| Dihydroxyacetone | C3H6O3 | 985 | tr. | – | 9.07 | – | tr. | – | – | – | – | – |
| 1,4-Butanediol | C4H10O2 | 1018 | – | tr. | – | 2.99 | – | – | – | tr. | – | 4.42 |
| Ethyl oleate | C20H38O2 | 1139 | 5.48 | 3.83 | 5.33 | 2.36 | 5.97 | 3.87 | 4.8 | 3.9 | 4.47 | 3.42 |
| Maltol | C6H6O3 | 1153 | 3.16 | – | 6.15 | 0.0 | 2.26 | – | 3.16 | 0.6 | 3.08 | – |
| Linoleic acid | C18H32O2 | 1191 | 5.09 | 4.16 | 6.73 | 2.9 | 7.68 | 4.6 | 5.11 | 2.45 | 4.62 | 1.47 |
| Diacetin | C7H12O5 | 1365 | tr. | – | tr. | – | 2.57 | – | 4.38 | – | 8.0 | – |
| 2-Methoxy-4-vinylphenol | C9H10O2 | 1387 | tr. | – | – | – | 0.73 | 0.67 | – | – | tr. | – |
| Dihomo-γ-linoleic acid | C20H34O2 | 1405 | 2.35 | 10.63 | 2.0 | 12.61 | 2.57 | 13.13 | 2.0 | 10.61 | 1.8 | 9.65 |
| Ethyl stearate | C20H40O2 | 1566 | 0.65 | 0.56 | 1.51 | 0.69 | 1.09 | 0.71 | 1.85 | tr. | tr. | 0.63 |
| Tricyclopentadeca-3,7-dien | C15H22 | 1641 | – | – | – | – | – | – | – | 3.58 | – | 9.92 |
| Bis (2-ethylhexyl) phthalate | C24H38O4 | 1905 | 0.65 | 0.8 | 1.47 | 0.67 | 1.37 | 1.54 | 1.7 | 3.07 | 3.39 | 1.49 |
| Ethyl 3-(4-hydroxyphenyl)-propenoate | C11H14O3 | 2033 | 1.54 | – | 1.23 | – | 0.84 | – | tr. | – | tr. | – |
| Retinol | C20H30O | 2368 | – | – | – | – | tr. | – | – | 6.28 | – | 8.03 |
| Total | 99.31 | 99.89 | 99.55 | 100 | 99.27 | 100 | 98.34 | 93.08 | 99.1 | 98.18 | ||
aRI, retention indices determined on DB-17MS capillary column. Components are listed in order of elution in DB-17MS column. – not detected, tr: traces amounts were detected