Table 9.
Effects of essential oils on the ratio of acetic and propionic acids after 24 h of in vitro incubation.
| Essential Oils | Doses (mL/g) | M | SEM | p-Value | ||||
|---|---|---|---|---|---|---|---|---|
| 0 | 50 | 250 | 500 | L | Q | |||
| Star anise | 3.09 | 3.49 | 4.21 | 4.40 | 3.80 | 0.47 | 0.377 | 0.094 |
| Citronella | 3.09 | 3.62 | 5.23 | 6.76 | 4.67 | 0.51 | 0.001 1 | 0.001 |
| Clove bud | 3.09 | 4.08 | 4.83 | 3.60 | 3.90 | 0.50 | 0.628 | 0.079 |
| Globulus | 3.09 | 3.28 | 4.60 | 4.58 | 3.89 | 0.46 | 0.022 2 | 0.027 |
| Staigeriana | 3.09 | 4.10 | 5.32 | 5.44 | 4.49 | 0.46 | 0.008 3 | 0.006 |
| Ginger | 3.09 | 4.09 | 4.82 | 4.65 | 4.16 | 0.42 | 0.049 4 | 0.029 |
| Ho wood | 3.09 | 3.75 | 4.87 | 3.27 | 3.74 | 0.51 | 0.805 | 0.205 |
| Melaleuca | 3.09 | 4.24 | 4.93 | 5.43 | 4.42 | 0.59 | 0.047 5 | 0.080 |
| Oregano | 3.09 | 4.76 | 4.41 | 4.79 | 4.26 | 0.48 | 0.052 6 | 0.112 |
| White thyme | 3.09 | 3.26 | 4.86 | 5.03 | 4.06 | 0.59 | 0.058 7 | 0.113 |
L = Linear effect; M = Means; Q = Quadratic effect; SEM = Standard error of the mean. * Equations: 1 y = 3.10 + 0.008x; 2 y = 3.07 + 0.004x; 3 y = 3.50 + 0.005x; 4 y = 3.52 + 0.003x; 5 y = 3.51 + 0.004x; 6 y = 3.15 + 0.004x; 7 y = 2.89 + 0.005x.