Fig. 5. Quercetin derivative profiles of freeze dried (white bars), microwave vacuum
dried (graygray bars), and air dried (dark graygray bars) Braeburn apple slices after
vacuum impregnation, data are mean SD (n ¼ 8), bars marked with different letters
of the single quercetin derivatives are significantly different (p < 0.05 by one-factorial
ANOVA with LSD post hoc test).