Figure 1 showed the chemical properties data.
The pH values, sucrose, alcohol and acid contents
during period of heating times (0–56 sec) were not
significantly different (P>0.05). Microwave drying
at the short heating times do not affect the loss of
water-soluble components (Maskan, 2000). Kadlec
et al. (2001) studied on the effect of microwave
heating on the changes of soluble carbohydrates
during germination of pea seeds (Pisum sativum).
The results showed that soluble carbohydrate was
not significantly decreased. In addition, considerable
increase of antioxidant such as total phenolic and
flavonoids contents in mash apple through microwave
heating caused from the evaporated water from sample
which concentrated the inner substances (Gerard and
Roberts, 2004).