Meiji Seika Kaisha, Ltd.

Shoichi Amano

Norio Ezaki

Yujiro Yamada

Tomizo Niwa

Shinji Miyadoh

Takashi Tsuruoka

Taro Niida

Takashi Shomura

Eiichi Akita

Michio Kojima

Chuhei Nojiri

Shinji Miyado

Tatsuo Ito

Mitsugu Itoh

Mitsugu Ito

Saeko Takahashi

Disclosed is a novel antibiotic SF-2107 series substance consisting essentially of Substance SF-2107 A-1, Substance SF-2107 B and/or Substance SF-2107 C, each having the phisico-chemical properties as described in the specification, which substance exhibits an antibacterial activity against both gram-positive and gram-negative bacteria and is useful for pharmaceuticals, bactericides, disinfectants, etc. Also disclosed is a process for preparing the substance.

Novel antibiotic SF-2107 series substance and process for preparing the

A novel antibiotic BN-235 substance and a process for making it are described, wherein the hydrochloride thereof has the following properties:

Novel antibiotic BN-235 substance, and process for the production thereof

An antibiotic BN-200 substance produced by cultivating a BN-200 substance strain of the genus Erwinia and a process for producing the BN-200 substance.

Antibiotic BN-200 substance and process for production thereof

A new antibiotic designated BN-130 substance is now provided, which has antibacterial activity against gram-negative and gram-positive bacteria as well as acid-fast bacteria. BN-130 substance is produced by cultivating a strain of Pseudomanas stutzeri under aerobic conditions.

Antibiotic BN-130 substances and the production thereof

Growing community of inventors

Kawasaki, Japan

Shoichi Amano