SCFAs concentration in fermentation cultures at different points with or without D. aphyllum polysaccharides as fermentation substratea.
| Samples | Time (h) | SCFAs (mM) | Total | |||||
|---|---|---|---|---|---|---|---|---|
| Acetic acid | Propionic acid | Butyric acid | i-Butyric acid | Valeric acid | i-Valeric acid | |||
| DAP | 0.5 | 35.4682 ± 0.34ab | 21.4445 ± 0.79a | 6.5893 ± 0.12a | 5.0530 ± 0.53a | 8.2918 ± 0.37a | 5.9622 ± 1.06a | 82.8090 ± 0.38a |
| 6 | 41.2591 ± 0.56b | 26.7522 ± 0.63b | 8.1147 ± 0.23b | 5.5537 ± 0.55a | 8.8727 ± 0.45a | 4.2574 ± 0.65a | 94.8098 ± 0.43c | |
| 12 | 41.9415 ± 0.23b | 27.3576 ± 0.26b | 9.2107 ± 0.34c | 6.4534 ± 0.89a | 9.8632 ± 1.0a | 4.8503 ± 0.82a | 99.6767 ± 0.75d | |
| 24 | 50.5391 ± 0.56c | 28.1192 ± 0.85c | 10.9700 ± 0.54d | 7.3119 ± 0.98a | 11.9208 ± 0.65b | 6.3755 ± 0.66a | 115.2365 ± 0.81e | |
| Control | 0.5 | 36.9488 ± 0.78a | 25.7946 ± 0.78a | 6.3807 ± 0.22a | 5.2955 ± 0.45a | 7.0789 ± 0.72a | 4.4409 ± 0.37a | 85.9394 ± 0.69b |
| 6 | 34.3910 ± 0.39b | 26.9052 ± 0.82b | 5.9692 ± 0.45a | 4.7433 ± 0.51a | 6.5432 ± 0.51a | 5.3475 ± 0.66a | 83.8994 ± 0.79a | |
| 12 | 36.1859 ± 0.84a | 26.7541 ± 0.81b | 5.6494 ± 0.236a | 4.8263 ± 0.39a | 5.9959 ± 0.71a | 6.9415 ± 0.69a | 86.3531 ± 1.74b | |
| 24 | 35.9172 ± 0.45c | 26.9978 ± 0.56b | 6.2616 ± 0.67a | 6.0914 ± 0.12a | 5.8975 ± 0.34a | 5.3580 ± 0.62a | 86.5235 ± 1.07b | |
a
Data are shown as mean ± standard (n = 3).
b
Mean values in the same column with different letters were significantly different (Tukey test, p < 0.05).