Sapporo Breweries Limited

Hitachi Plant Technologies, Ltd.

Yutaka Mitani

Hisao Kado

Yasuhiro Oki

Suguru Takeo

Nobuhiro Watanabe

Taiju Masuda

Yasuo Yoneta

Tatsuo Sumino

Naoki Abe

Masachika Takashio

Minoru Kamimura

Naomichi Mori

Hajime Ikuta

Kiyoshi Takoi

Takahide Chikano

Yasuo Yoneda

Syuichi Ishii

Hiroshi Akiyama

Ryo Atsumi

Fumito Ishida

A microorganism suitable for production of hydrogen that is astrain with an accession number of FERM BP-10793, or its mutants.

Strain of Thermoanaerobacterium thermosaccharolyticum and mutant thereof

The hydrogen-producing method of the an aspect of the present invention is a method for producing hydrogen in which hydrogen is produced from an organic matter using a microorganism, characterized by using pellets on which hydrogen-producing acid-resistant bacteria are entrapped and immobilized, producing hydrogen by bringing the pellets into contact and react with the organic matter in an environment of a pH of 4 to 6. The inventors of the present invention have obtained a finding that a hydrogen-producing bacteria are entrapped and immobilized, so that the optimum pH of the hydrogen-producing bacterium shifts to low range. The present invention is made based on the above finding and uses pellets on which the hydrogen-producing bacteria are entrapped and immobilized, so that the hydrogen-producing bacterium is activated at a low pH range of 4 to 6 to produce hydrogen. Therefore, the effects of contaminated bacteria that consume hydrogen are less, and the yield of hydrogen can be improved.

Method and apparatus for producing hydrogen and microorganism-immobilization pellets used in the same

The hydrogen fermentation apparatus is the one that generates hydrogen by decomposing organic matter through hydrogen fermentation. There are arranged a hydrogen fermentor which holds the treating liquid containing organic matter, and a string-shape carrier which is positioned to immerse itself in the treating liquid in the hydrogen fermentor, and on which hydrogen-generating bacteria are fixed.

Hydrogen fermentor and method of producing hydrogen

Solid fermentation-promoting substance and method for preparation thereof

Method of evaluating separation and exhalation performance of volatile

A polysaccharide RON substance which has antitumor activity can be produced by fermenting sucrose with a synthetase. The synthetase can be isolated from Leuconostoc strains. Preferred strains of the microorganism are Leuconostoc mesenteroides FERM BP-2242, 2711, 2712, 2713, 2714, and 2670. The substance exhibits antitumor activity against syngenic tumor Meth A, a transplantable tumor in mice.

Process for producing polysaccharide ron substance with a synthetase

A biologically active polysaccharide RON substance which is excellent in such biological activities as antitumor activities, is produced by using a microorganism belonging to the genus Leuconostoc, which has an activity of producing the RON substance.

Method for producing biologically active polysaccharide RON substance

Different from conventional urease products, the urease of the present invention has excellent stability, and has a smaller Km value. The urease of this invention is produced microbiologically by a thermophilic microorganism belonging to the genus of Bacillus and especially named as Bacillus sp. TB-90 which is a novel species distinguishable from any of the microorganisms belonging to the genus of Bacillus.

Urease and process for preparation thereof

Growing community of inventors

Yaizu, Japan

Yutaka Mitani