1. College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, People's Republic of China
2. Qinghai Provincial Key Laboratory of Qinghai-Tibet Plateau Biological Resources, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Qinghai 810008, People's Republic of China
3. School of Light Industry and Food Engineering, Guangxi University, Nanning 530004, People's Republic of China