Table 2.

Effect of storage at room temperature on population size of strains P5 (initially containing 2 × 10⁸ cfu/ml) and P13 (initially containing 1 × 10⁷ cfu/ml) in liquid formulations. Statistical significances of data at the third month are presented.

Formulation no.	1st month	2nd month	3rd month	1st month	2nd month	3rd month
	Strain P5			Strain P13
1	6 × 106	3 × 106	5 × 106 a	2 × 106	2.4 × 106	3.75 × 106 a
2	5.6 × 106	3.5 × 106	3.25 × 106 bc	4.8 × 107	4.2 × 107	2 × 107 b
3	1 × 106	2.9 × 106	2.5 × 106 c	2.1 × 107	3.5 × 107	2 × 107 b
4	4.3 × 107	2 × 107	4 × 106 ab	2.7 × 106	4.6 × 106	4 × 106 a
5	3 × 107	1 × 107	5 × 106 a	4.7 × 106	3 × 106	2.5 × 106 a

^*Unidentical letters represent significant differences between 3 months in each formulation