On Oct 17, 2013, the 13th Biomass Evening Seminar was held at Graduate School of Engineering, Hiroshima University.

Biomass Project Research Center, Hiroshima University, and HOSTY Association are co-organizing the Hiroshima University Biomass Evening Seminar. This seminar covers topics from the fundamentals of biomass to the latest information so that it can contribute the activities on biomass in this district.

• Commentary

Yukihiko MATSUMURA

Professor, Institute of Engineering

• Lecture

"Development of the generation technology by mixed combustion of biomass fuel"

Yukimasa YAMAMURA

Assistant Manager, Chief Researcher

Renewable Energy Technology Section Energia Economic & Technical Research Institute

THE CHUGOKU ELECTRIC POWER CO.,INC,

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 Chugoku Electric Power Co., Inc. carried out "Development of the generation technology by mixed combustion of biomass fuel" through NEDO research cooperation project in cooperation with Institute of technology of Cambodia in the 2010 and 2009, I report the summary.

Developed the mixed combustion technology to generate electricity using diesel engine with Jatropha oil and the biogas which gasified Jatropha seed cake in this study and produced.

In addition, performed the long-term test by mix combustion generation (300 hours) and oil generation (500 hours).

“Effect of various inhibitors on ethanol fermentation”

Yuta FUKUTOMI

M1 Student, Graduate School of Engineering, Hiroshima University

 To obtain sugar from lignocellulosics, hydrothermal pretreatment which is treatment of lignocellulosics in hot compressed water is effective. Following the hydrothermal pretreatment, enzymatic hydrolysis of cellulose is more efficiently conducted. However, when hydrothermal pretreatment is performed, substance which inhibits the ethanol fermentation of yeast are also generated.

 In this study, the inhibitory effect of the main fermentation inhibitors (formic acid, acetic acid, furfural and 5-hydroxymethylfurfural) was studied through ethanol fermentation of model substrates for 36 h by Saccharomyces cerevisiae. Change of yeast concentration (optical density), glucose concentration, and ethanol concentration were measured.

• Chair

Machi KANNA

Assistant Professor, Institute of Engineering