Abstract:The benzoyl peroxide (BPO) is the whitening additive for wheat flour, but the excessive addition of BPO is harmful to human body.10 samples from 5 kings of wheat flour in Xinxiang city were stochastically selected for detection their BPO contents by the gas chromatography. It was found that 20% of the samples were unqualified with respect to the returns-ratio and the reproduction quality. The unqualified rate of wheat flour ranged from 0 to 45.48% estimated with 95% confidence. The achieved results favor the control and monitor of the BPO content of wheat flour in the Xinxiang city.
