Shimizu Corporation

Euglena Co., Ltd.

Takeshi Hasegawa

Kengo Suzuki

Ryohei Nakano

Ayaka Nakashima

Eriko Yoshida

Keisuke Kojima

Hideyuki Adachi

Masaharu Tasaki

Yoichi Kuroiwa

An algae culture method capable of efficiently producing an osmotic pressure adjusting substance, a production method of the substance, and an algae culture method for recovering carbon dioxide from a mixed gas containing carbon dioxide and sulfurous acid gas. The methods involve preparing a plurality of enrichment cultures each containing betaine by culturing a culture of microalgae derived from an environmental specimen under a photoautotrophic condition and under a plurality of culture conditions; making a cultivation plan in which an optimum enrichment culture suitable for a main culture is selected from the plurality of enrichment cultures; producing a main culture that contains betaine under the photoautotrophic condition and a salt concentration of 10 wt. % or more; and separating betaine. In the main culture, the algae containing betaine are cultured while the mixed gas containing sulfurous acid gas and carbon dioxide is blown to a culture solution of the algae.

Algae cultivation method and production method for osmotic pressure regulator

Growing community of inventors

Kashiwa, Japan

Takeshi Hasegawa