Toyota Jidosha Kabushiki Kaisha

Emiko Tominaga

Toru Onishi

Noriko Yasutani

Hibiki Matsushita

A method of producing ethanol includes: measuring a xylose concentration in a culture fluid that contains microorganisms having xylose utilizing ability, the culture fluid including a culture medium that contains saccharides derived from lignocellulose; and performing an addition control in which an additional culture medium is added to the culture fluid to conduct a continuous culture of the microorganisms, the additional culture medium containing saccharides derived from lignocellulose.

Method of producing ethanol using continuous culture and continuous culture apparatus

This invention provides a method for improving the xylose-metabolizing ability of a yeast strain having xylose-metabolizing ability. The method comprises steps of: soaking the yeast strain having xylose-metabolizing ability in an acetic-acid-containing solution; and then, culturing the yeast strain in a xylose-containing medium to perform ethanol fermentation.

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Chiryu, Japan

Emiko Tominaga