1. College of Food Science and Engineering, Ocean University of China, Qingdao 266003, Shandong, P. R. China
2. Laboratory of Nutrition Biochemistry, Department of Applied Biochemistry and Food Science, Saga University, Saga 840-8502, Japan
3. Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237 Shandong Province, P. R. China