Table 1.

The initial concentration of phenolics in the solvent (C₀) and the rate constant (k) of each extraction step, performed by different aqueous solutions of ethanol or acetone, at 22 °C, solid-to-liquid ratio 1:20, and non-specific particle size, as calculated by fitting Equation (1). The correlation coefficients (R²) are also presented.

	C0 (mg GAE/gdw)	k (min−1) (Fast Stage)	R2	k (min−1) (Slow Stage)	R2
Ethanol Concentration (%)
0	7.96 ± 1.02	0.022 ± 0.002	0.97	0.006 ± 0.001	0.93
60	20.30 ± 0.80	0.029 ± 0.003	0.99	0.012 ± 0.002	0.99
80	20.43 ± 0.76	0.024 ± 0.002	0.98	0.007 ± 0.001	0.98
96	13.65 ± 0.22	0.006 ± 0.001	0.98	0.002 ± 0.001	0.97
Acetone Concentration (%)
0	7.96 ± 1.02	0.022 ± 0.002	0.97	0.006 ± 0.001	0.93
40	27.48 ± 1.14	0.026 ± 0.004	0.96	0.010 ± 0.001	0.99
60	24.95 ± 1.02	0.042 ± 0.003	0.99	0.018 ± 0.002	1.00
80	22.23 ± 0.83	0.021 ± 0.003	0.97	0.008 ± 0.001	0.97
100	10.39 ± 0.18	0.004 ± 0.001	0.97	0.002 ± 0.001	0.96