1. Laboratory of Food Safety, College of Food Science and Nutritional Engineering; China Agricultural University; Beijing 100083 People's Republic of China
2. Beijing Engineering and Technology Research Center of Food Additives; Beijing Technology & Business University (BTBU); Beijing 100048 People's Republic of China
3. The Supervision, Inspection & Testing Center of Genetically Modified Organisms; Ministry of Agriculture; Beijing 100083 People's Republic of China