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. 2025 Aug 19;13:e19821. doi: 10.7717/peerj.19821

Table 2. p-value levels from the three-way ANOVA for the effect of temperature (T), solute/solvent concentration (R), and amplitude (A).

T R A T×R A×R T×A T×R×A RSquare RMSE Fratio
Phenolic * * * * * * * 0.971 5.43 70.62
Flavonoids * * * * * * * 0.994 3.00 355.7
DPPH (IC50) * * * * * * * 0.979 57.61 98.83
ABTS (IC50) * * * * * * * 0.997 1.02 892.9
Hydroxyl (IC50) * * * * * * * 0.996 0.14 648.8

Notes.

RMSE
Root mean square error
T
temperature
R
solute/solvent concentration
A
amplitude
*

Significant p < 0.001, α = 0.05.