1. College of Biotechnology and Food Science; Tianjin Key Lab. of Food Biotechnology; Tianjin Univ. of Commerce; Tianjin 300134 China
2. Dep. of Biology and Chemistry; City Univ. of Hong Kong; Tat Chee Avenue Kowloon Hong Kong SAR China
3. State Key Lab. in Marine Pollution; City Univ. of Hong Kong; Tat Chee Avenue Kowloon Hong Kong SAR China