1. College of Food Science and Engineering, Northwest Agriculture and Forestry University, YangLing, Shaanxi 712100, People's Republic of China
2. Public Health College, Harbin Medical University, 157 BaoJian Road, NanGang District, Harbin 150081, People's Republic of China
3. College of Sciences, Northwest Agriculture and Forestry University, YangLing, Shaanxi 712100, People's Republic of China
4. Agricultural Research Station, Virginia State University, Petersburg, Virginia 23806-0001
5. Institute of Food Process, The Chinese Academy of Agricultural Sciences, Beijing 100094, People's Republic of China