Table 3. Effect of 10% trehalose or 10% sorbitol on the thermal unfolding temperature Tm values of Sm-TSP-2 in the presence or absence of 0.1% Brij 35 at pH 7.0 in 20 mM imidazole buffer as measured by normalized tyrosine fluorescence intensity measurements.

Formulation		Tm ( °C)	SD
10.0% trehalose	0.1% Brij 35	64.0	0.3
	-	63.3	0.7
10.0% Sorbitol	0.1% Brij 35	64.2	0.4
	-	63.3	0.3