Dependent variable Best fit equations R* SE§
Δ t=3 0.464859 [fennel]-0.472859[black pepper]-0.350598 [fennel] [black pepper] 0.97 38.97 0.21
Δ t=3 0.207 [bay] 0.79 15.27 0.26
* Regression coefficient
° Fisher test value
§ Standard error
Table 2: Best fit equations describing the main interactive and quadratic effect of essential oils on log reduction (Δ) values.