1. College of Food Science and Engineering, Gansu Agricultural University, Lanzhou 730070, China
2. Gansu Provincial Key Laboratory of Arid Land Crop Science, Lanzhou, 730070, China
3. College of Science, Gansu Agricultural University, Lanzhou 730070, China
4. State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, Gansu, China