extremely significantP < 0.0001
It can be seen from Table A3 that the quadratic polynomial fit model is extremely significant ( P < 0.0001).
It can be seen from Table A3 that the quadratic polynomial fit model is extremely significant ( P < 0.0001).
Single-factor experimental results The total flavonoid content was highest when the ethanol concentration was at 90% and showed a decreasing trend at 95% ( Fig. 1 a), presumably because of the principle of similar solubility.