Seizaburo Shiraga

Title: Seizaburo Shiraga: Innovator in Amino Acid Production

Introduction

Seizaburo Shiraga is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of biotechnology, particularly in the production of L-amino acids. With a total of 2 patents, his work has implications for various industries, including food and pharmaceuticals.

Latest Patents

Shiraga's latest patents include a method for producing an L-amino acid. This method involves culturing a bacterium from the Enterobacteriaceae family, which has the ability to produce L-amino acids in a medium containing fatty acids as the carbon source. The process emphasizes the use of emulsified or homogenized fatty acids to enhance the production and accumulation of L-amino acids in the culture medium. The second patent focuses on a microorganism capable of producing multiple L-amino acids, including L-glutamic acid and L-arginine. This microorganism is modified to increase α-ketoglutarate synthase activity, allowing for the efficient collection of L-amino acids from the medium or cells.

Career Highlights

Seizaburo Shiraga is currently associated with Ajinomoto Co., Ltd., a leading company in the food and biotechnology sectors. His work at Ajinomoto has allowed him to explore innovative methods for amino acid production, contributing to the company's reputation as a pioneer in the industry.

Collaborations

Shiraga has collaborated with notable coworkers, including Yoshihiro Usuda and Kazuhiko Matsui. Their combined expertise has fostered advancements in the field of amino acid production.

Conclusion

Seizaburo Shiraga's contributions to the production of L-amino acids through innovative methods highlight his role as a key inventor in biotechnology. His patents and work at Ajinomoto Co., Ltd. continue to influence the industry positively.