Toyo Boseki Kabushiki Kaisha

Yamasa Corporation

Kochi University

Makoto Ashiuchi

Atsushi Sogabe

Shuhei Yamamoto

Kenji Inagaki

Masaru Kitagawa

Michiko Suzuki

Hitoshi Kusakabe

Kazuki Shimizu

Jiro Arima

Toshiharu Yagi

It is an objective of the present invention to provide a process for efficiently producing poly-&#x3b3;-glutamic acid having a high L-glutamic acid content and excellent quality. The process for producing poly-&#x3b3;-glutamic acid according to the present invention is characterized in using a bacterium belonging to species

Process for producing poly-&#x3b3;-glutamic acid having high optical purity

There are provided a microorganism characterized by producing poly-&#x3b3;-L-glutamate with a molecular weight of 1,300,000 or greater and uniform optical purity under liquid culture conditions, a method of screening for the microorganism, a method of producing poly-&#x3b3;-L-glutamate having large molecular weight by using the microorganism, and poly-&#x3b3;-L-glutamate having an average molecular weight of 1,300,000 or greater. In addition, usages of these are provided.

&#x3b3;-L-PGA producing microorganism, method of producing &#x3b3;-L-PGA using the microorganism, crosslinked substance produced using the microorganism, and external dermal agent produced using the microorganism

The present invention provides a novel L-glutamate oxidase, a gene encoding the enzyme, and a method for producing the enzyme. By use of a gene encoding the enzyme, L-glutamate oxidase can be readily prepared at low costs through a recombinant DNA technique. The novel L-glutamate oxidase has the following physicochemical properties:

L-glutamate oxidase

Growing community of inventors

Kochi, Japan

Makoto Ashiuchi