This result was unsurprising
because the pH value of MD applied in this
study was 4.7 while the fresh juice pH was
2.3. Furthermore, there were only slight
differences in the pH among the reconstituted
specimens. If deeming the proportion of juice
(based on total soluble solids) and MD (based
on dry weight) in this study (65:35, 50:50 and
40:60), it is clear that MD contents were not
very difference between powder samples.
Moreover, these powders were reconstituted
with distilled water before measuring pH; as collected at the cyclone, the trend of powder
recovery might change.