formed within the tissue matrix during freeze drying, rupture the
cell structure facilitating solvent extraction and consequently high
extraction of phenolic compounds (Shih, Kuo, & Chiang, 2009).
Infrared dried sample had high phenolic content which might be
due to non-enzymatic conversion of phenolic precursors to new
phenolic compounds as in case of microwave drying (Soong &
Barlow, 2004). Total phenolic content of freeze dried powder
from Tommy Atkins mangoes has been reported to be 825 mg GAE/
100 g (Hung, 2012). Our results showed higher values of phenolic
content of mango powder than reported by these researchers,
which might be attributed differences in fruit maturity or horticultural
practices.