1. Shaanxi Key Laboratory of Degradable Biomedical Materials, Shaanxi R&D Center of Biomaterials and Fermentation Engineering, Biotech. & Biomed. Research Institute, School of Chemical Engineering, Northwest University, Xi’an, Shaanxi 710069, People’s Republic of China
2. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, People’s Republic of China
3. State Key Laboratory of Vegetable Biobreeding, Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, People’s Republic of China