Table 2. Effects of cryoprotectants on the cell viability (CFU/g) of freeze-dried L. fermentum SK152 during storage at 4°C

Week	0	2	4	6	8	Survival rate after 8 weeks (%)
Skim milk	1.3×108	1.0×108	8.7×107	1.1×108	1.2×108	90.0
Trehalose	8.7×107	1.0×108	1.2×108	9.3×107	1.1×108	84.6
Glucose	1.0×108	1.0×108	6.2×107	5.8×107	5.0×107	50.0
Dextrin	3.2×108	1.3×108	8.3×107	1.1×108	1.1×108	37.0