Epigallocatechin gallate and gallocatechin gallate in green tea catechins inhibit extracellular release of Vero toxin from enterohemorrhagic Escherichia coli O157:H7

Yoshiko Sugita-Konishi1, Yukiko Hara-Kudo1, Fumio Amano2, Tsutomu Okubo3, Nobuyuki Aoi3, Masaaki Iwaki1, Susumu Kumagai1
1Department of Biomedical Food Research, National Institute of Infectious Diseases, Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
2Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
3Taiyo Kagaku Co., Ltd., Takaracho, Yokkaichi-City, Mie 510-0844, Japan