Table 1. Sporopollenin exine capsules (SECs): CHN composition(a).
| Treatment conditions | Carbon (%) | Hydrogen (%) | Nitrogen (%) |
|---|---|---|---|
| Untreated | 65.4 ± 0.3 | 9.5 ± 0.1 | 1.30 ± 0.0 |
| Acetone-6 h | 65.6 ± 0.1 | 9.3 ± 0.0 | 1.33 ± 0.0 |
| Alkaline lysis-6 h | 62.8 ± 0.3 | 8.9 ± 0.0 | 1.10 ± 0.0 |
| Alkaline lysis-12 h | 62.5 ± 0.1 | 8.9 ± 0.0 | 0.91 ± 0.0 |
| Acidolysis-5 h | 61.5 ± 0.2 | 8.2 ± 0.0 | 0.22 ± 0.0 |
| Acidolysis-10 h | 61.8 ± 0.1 | 8.1 ± 0.0 | 0.21 ± 0.0 |
| Acidolysis-20 h | 62.9 ± 0.3 | 8.4 ± 0.0 | 0.19 ± 0.0 |
| Acidolysis-30 h | 63.6 ± 0.1 | 8.6 ± 0.0 | 0.15 ± 0.0 |
| Acidolysis-60 h | 62.1 ± 0.2 | 8.0 ± 0.1 | 0.15 ± 0.0 |
| Acidolysis-90 h | 62.1 ± 0.6 | 8.0 ± 0.1 | 0.13 ± 0.0 |
| Acidolysis-120 h | 61.1 ± 1.4 | 8.2 ± 0.1 | 0.13 ± 0.0 |
| Commercial | 65.6 ± 0.3 | 6.1 ± 0.1 | 0.18 ± 0.0 |
(a)CHN analysis performed in triplicate and reported as average values with standard deviation.