1. Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua Donglu, Haidian District, Beijing 100038, P. R. China
2. Agricultural Research Service, Pacific West Area, Western Regional Research Center, U. S. Department of Agriculture, 800 Buchanan Street, Albany, California 94710, United States
3. Division of Pediatric Immunology, Allergy, and Rheumatology, Department of Pediatrics, Stanford University School of Medicine, 269 Campus Drive, Stanford, California 94305, United States