1. Institute of Food Science and Technology; Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture; No.1 Nongda South Rd. Beijing 100193 China
2. Division of Chemical Metrology and Analytical Science; National Institute of Metrology; No. 18 North Third Ring Rd. Beijing 100029 China
3. Shijiazhuang Academy of Agricultural and Forestry Sciences; No. 479 Shengli North Street Shijiazhuang 050041 China