Table 2 Lactic acid bacter ia colony number , pH and viscosity in the yogurt according to different addition amount of skim milk powder

	Concentration (%)
	8	12	16	20	24
	Lactic acid bacteria colony number (CFU/g)	8.67±0.021)^a2)	9.00±0.00^a	9.48±0.01^a	9.60±0.01^a	9.64±0.02^a
pH	4.03±0.02^e	4.09±0.01^d	4.19±0.01^c	4.28±0.06^b	4.32±0.02^a
Viscosity (cP)	2,500±200^e	5,300±608^d	10,000±820^c	12,667±1,154^b	19,333±1,145^a

Values represented the mean (n=3).
Any means in the same row followed by the same letter are not significance (p<0.05).