Table 2.
Composition and identification of volatiles of leaves, aerial stems, and underground stems for five different geographical origins of Houttuynia cordata Thunb by fast GC/SAW.
| Peak No. | Compound | Houttuynia cordata Thunb | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Leaves | Aerial Stems | Underground Stems | ||||||||||||||
| A | B | C | D | E | A′ | B′ | C′ | D′ | E′ | A′′ | B′′ | C′′ | D′′ | E′′ | ||
| a | cis-3-Hexenal | 1.1(10.60) | 1.1(14.81) | 0.8(12.87) | 0.9(8.49) | 1.0(3.83) | 2.1(6.97) | 2.1(12.78) | 1.7(13.66) | 2.4(8.47) | 1.5(16.69) | 0.7(9.15) | 0.9(3.71) | 0.4(16.13) | 0.6(3.47) | 0.5(10.11) |
| b | 3-Hexen-1-ol | 4.9(7.78) | 3.5(9.75) | 2.9(17.89) | 3.4(2.03) | 4.0(4.09) | 0.2(4.55) | 0.2(4.68) | 0.2(3.76) | 0.3(11.26) | 0.3(18.23) | - | - | - | - | - |
| c | α-Pinene | 6.1(0.81) | 8.3(3.28) | 8.3(7.52) | 11.7(1.55) | 8.2(1.23) | 2.2(1.71) | 4.2(4.39) | 3.0(7.47) | 3.2(13.94) | 2.7(2.36) | - | - | - | - | - |
| d | Camphene | - | - | - | - | - | 0.9(4.05) | 0.6(3.14) | 0.5(9.35) | 0.6(12.61) | 0.5(10.25) | 1.8(0.29) | 1.9(17.06) | 2.3(3.52) | 2.3(13.74) | 1.7(6.24) |
| e | Sabinene | 0.6(11.11) | 0.8(13.09) | 0.7(14.73) | 1.3(9.21) | 0.7(5.68) | 2.0(11.70) | 2.1(9.92) | 1.7(12.31) | 1.6(8.98) | 1.7(4.95) | 3.1(4.29) | 3.2(1.49) | 2.8(2.67) | 3.6(4.34) | 3.2(5.07) |
| f | β-Pinene | - | 0.3(14.28) | 0.5(13.00) | 0.5(4.92) | 0.5(5.46) | 0.8(13.19) | - | - | - | - | 1.9(6.45) | 1.5(2.81) | 4.2(4.61) | 3.6(8.53) | 2.8(7.74) |
| g | β-Myrcene | 21.3(3.58) | 15.8(5.71) | 13.5(10.59) | 17.5(6.79) | 18.9(0.80) | 26.3(12.64) | 23.3(9.32) | 20.7(11.75) | 26.7(0.81) | 22.9(7.43) | 38.0(13.26) | 33.9(10.50) | 46.6(7.85) | 36.9(2.58) | 36.3(2.65) |
| h | Limonene | 0.3(14.29) | 0.6(12.57) | 0.5(3.27) | 0.8(17.17) | 0.6(13.65) | 3.5(12.24) | 2.3(7.47) | 2.2(3.39) | 2.7(0.81) | 2.4(5.29) | 18.6(10.09) | 17.4(8.06) | 17.3(2.87) | 17.5(2.58) | 16.4(3.32) |
| i | cis-Ocimene | 19.6(1.03) | 18.4(5.93) | 16.7(7.82) | 22.6(5.42) | 16.9(1.51) | 14.6(15.36) | 11.1(14.55) | 14.2(11.92) | 16.1(4.85) | 14.3(10.68) | 15.0(9.17) | 15.9(16.93) | 11.9(2.32) | 15.0(6.70) | 14.9(5.92) |
| j | α-Terpinolene | - | 0.1(4.02) | 0.2(14.28) | 0.3(7.87) | 0.2(13.62) | 0.9(8.02) | 0.9(15.06) | 0.3(22.04) | 0.3(13.04) | 0.7(6.02) | 0.3(9.90) | 0.8(14.96) | 0.5(8.52) | 0.6(11.12) | 0.4(18.87) |
| k | Decanal | 31.9(4.56) | 36.8(11.58) | 41.9(8.65) | 29.9(0.92) | 36.8(6.43) | 8.7(7.28) | 15.7(15.00) | 29.4(8.37) | 21.4(5.83) | 20.7(2.13) | 0.4(10.27) | 1.2(1.46) | 1.0(10.34) | 1.3(8.76) | 2.6(8.29) |
| l | Bornyl acetate | 3.1(5.87) | 1.7(6.75) | 1.1(9.49) | 1.1(2.23) | 1.8(2.87) | 16.9(3.35) | 17.4(8.06) | 10.1(7.20) | 9.9(3.98) | 13.6(0.53) | 12.4(8.67) | 14.6(9.16) | 8.3(6.38) | 11.7(8.46) | 12.8(5.82) |
| m | 2-Undecanone | 0.6(14.19) | 1.3(10.49) | 1.9(11.47) | 1.2(4.74) | 0.5(12.73) | - | - | - | - | - | - | - | - | - | - |
| n | Geranyl acetate | - | - | - | - | - | 9.9(2.81) | 10.4(2.45) | 8.4(8.11) | 7.9(10.80) | 8.2(1.11) | 2.2(6.82) | 3.1(7.94) | 1.9(3.43) | 2.0(1.57) | 2.6(2.17) |
| o | Lauraldehyde | 3.3(2.98) | 3.5(7.69) | 3.8(1.54) | 3.7(3.76) | 3.2(3.78) | - | - | - | - | - | - | - | - | - | - |
| p | β-Caryophyllene | 7.2(2.62) | 7.8(8.73) | 7.2(6.65) | 5.1(2.47) | 6.7(10.04) | 11.0(0.92) | 9.7(9.31) | 7.6(5.32) | 6.9(4.22) | 10.5(5.07) | 5.6(5.30) | 5.6(11.87) | 2.8(4.20) | 4.9(9.60) | 5.8(3.73) |
(-) not detected. % Figures are their relative proportions as percent of total amount (Cts), %(RSD), n = 3. The characteristic compounds are indicated in bold. Column: DB-624 (6% cyanopropyl phenyl polydimethylsiloxane, 1 m × 0.25 mm × 0.25 µm) fused silica capillary column was used. Samples of wild H. cordata Thunb were collected from Ulreung island(A,A′,A′′), Anmyeon island(B,B′,B′′), Jeju island(C,C′,C′′), Hampyeong(D,D′,D′′), and Haenam(E,E′,E′′) in South Korea.