1. Institute of Quality Standard and Testing Technology for Agri-products, Chinese Academy of Agricultural Sciences (CAAS), Beijing 100081, P.R. China
2. Key Laboratory of Agro-food Safety and Quality, Ministry of Agricultures, Beijing 100081, P.R. China
3. CAS Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Centre for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences (CAS), Wuhan National Research Center for Optoelectronics, Wuhan 430071, P.R. China
4. Department of Food Science and Technology, The Ohio State University, Columbus, Ohio 43210, United States