Table 4.
Protease activity and in vitro dissolution of microencapsulated pineapple juice powders

Samples1)	Protease activity (unit/g)	Protease activity in vitro dissolution
		unit/g	%
		Fd	1,297.47±5.29a2)	-	-
SD-M	633.51±8.87c	23.70±2.90b	3.74±0.46c
SD-MA-1	692.08±5.98b	41.30±5.35b	5.97±0.77b
SD-MA-2	664.66±7.66bc	97.75±9.46a	14.71±1.42a
SD-MA-3	642.65±4.71c	100.83±1.94a	15.69±0.30a

1)FD, freeze-dried powder; SD-M, spray-dried powder added 20% maltodextrin; SD-MA-1, spray-dried powder added 20% maltodextrin and 1% alginic acid; SD-MA-2, spray-dried powder added 20% maltodextrin and 2% alginic acid; SD-MA-3, spray-dried powder added 20% maltodextrin and 3% alginic acid.
Means±SD (n=3) within each column (a-c) followed by the same letter are not significantly different (p<0.05).