抄録
Beta parotin was found to be more stable in acid solution than parotin, and equally or slightly unstable in alkaline solution; it was fairly stable between pH 2.0 and 10.0 below 40°C.
Ca-activity of β-parotin was inactivated by nitrous acid, formaldehyde, cysteine and thioglycollic acid, but not by iodine. It was not influenced either such denaturing reagents as urea and guanidine.
Ca-activity of β-parotin was destroyed after the treatment with proteases for to 24hrs. at 38°C, while L-activity was stable.
