Objective To monitor the safety of infant formula milk powder registered in China by measuring the content of protein and melamine in infant formula milk powder. Methods Protein content in infant formula milk powder was determined according to the first method-Kjeldahl method in GB 5009.5-2016 National food safety standards-Determination of protein. The content of melamine was detected according to the first method-high performance liquid chromatography (HPLC) in GB/T 22388-2008 Testing methods for melamine in raw milk and dairy products. Results The protein content in the samples all met the national food safety standards, and the measured value was not less than 80% of the labeled value. Melamine content was not detected or less than the detection limit, in line with the limit value in the announcement of former ministry of health. Conclusion According to the testing methods and evaluation indexes of national food safety or recommended standards, the protein content in tested samples meet the requirements of formula registration.
标题：配方注册婴幼儿配方乳粉中蛋白质及三聚氰胺含量测定分析
英文标题：Determination and evaluation of total protein and melamine contents in infant formula for formula registration purpose
