Left panel shows percent un-oxidized in 5% trehalose (open circle), 4%trehalose-1% HES (open square), 2.5% trehalose-2.5% HES (open triangle) and 1% trehalose-4% HES (cross) and 5% HES (closed circle) stored at A) 40°C, B) 50°C and C) 60°C. Right panel shows results from formulations of 5% sucrose (open circle), 4%sucrose-1% HES (open square), 2.5% sucrose-2.5% HES (open triangle) and 1% sucrose-4% HES (cross) and 5% HES (closed circle) stored at D) 40°C, E) 50°C and F) 60°C.