1. Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing 100094, P. R. China
2. Department of Animal Sciences, Washington State University, Pullman, WA 99164, USA
3. Department of Pharmaceutical Sciences, College of Pharmacy, Washington State University, Spokane, WA 99210, USA
4. Department of Chemistry and Lifer Sciences, Gansu Normal University for Nationalities, Hezuo 747000, P. R. China