1. Laboratory of Pathogenic Biology, Guangdong Medical University, Zhanjiang 524023, PR China
2. Guangxi Key Laboratory of Marine Natural Products and Combinatorial Biosynethesis Chemistry, Guangxi Academy of Sciences, Nanning 530007, PR China
3. Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, Guangzhou 510642, PR China
4. School of Pharmaceutical Sciences, Guangxi University of Chinese Medicine, Nanning 530001, PR China