Table 3. Electrophysiologically active components of female Ibalia leucospoides body washes.
| Component | Kovat’s index1 (reference) |
Females (n = 23) |
Males (n = 37) |
t (P) | Ratios Male/Female |
|---|---|---|---|---|---|
| Amount (μg) ± S.E.2 | |||||
| (6Z,9Z)-heptadeca-6,9-diene | 1670 (16623) | 0.03 ± 0.0 a7 | 0.00 ± 0.0 b | 2.93 (<0.001) | 0.04 |
| Tricosane | 2300 (23004) | 0.06 ± 0.01 a | 0.04 ± 0.0 a | 0.99 (0.32) | 0.66 |
| Pentacosane | 2500 (25004) | 5.4 ± 0.6 a | 2.5 ± 0.2 b | 3.95 (<0.001) | 0.46 |
| Hexacosane | 2600 (26004) | 20 ± 2.3 a | 11.3 ± 0.8 b | 4.42 (<0.001) | 0.56 |
| Heptacosane | 2700 (27004) | 29 ± 3.4 a | 26.7 ± 2.5 a | 0.08 (0.94) | 0.92 |
| Component 18 | 2460 (24655) | 9.2 ± 1.1 a | 4.4 ± 0.4 b | 3.92 (<0.001) | 0.48 |
| Component 2 | 2670 (26656) | 78.1 ± 8.4 a | 56 ± 5 a | 0.85 (0.39) | 0.72 |
Notes.
1
The calculated Kovat’s indices of compounds eluted on a non-polar HP5-MS column.
2
Amount of each component and standard errors correspond to those found in individual body wash extracts.
7
Values (mean ± S.E.) were compared after adjusting for sexual dimorphism in surface area. Values with the same letter within each row were not significantly different (Student two-tailed t test, P > 0.05).
8
Components 1 and 2 were quantified using the authentic samples of pentacosane and hexacosane as external standards.