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. The 27th seminar will be held as follows. Please join.

• Date & Time: Wed.21 Jan., 2015 16:20-17:50

• Place: Engineering 110 Lecture Room, Higashi-Hiroshima Campus, Hiroshima University

＜Program＞

• Commentary: Yukihiko MATSUMURA

Professor, Institute of Engineering, Hiroshima University

• Lecture: Tsunehiro AKI

Professor, Graduate School of Advanced Sciences of Matter, Hiroshima University

“Utilization of marine organisms for useful lipid production”

Marine macroalgae and microorganisms are promising sources toward constructing the sustainable system to provide energy and value-added materials. Our reseach for efficient utilization of macroalgal components and lipid production using eukaryotes belonging to the genus Aurantiochytrium will be introduced.

• Lecture: Rozyanti binti Mohamad

D1 Student,Graduate School of Engineering, Hiroshima University

“Decomposition characteristics of uronic acids under hydrothermal condition”

The objective of this research is to study the behaviour of guluronic acid (GA) and mannuronic acid (MA) during hydrothermal condition. The procedure started with preparation of uronic acids through partial hydrolysis of alginic acid with hydrochloric acid (HCl). The separation of those acids was performed based on solubility at pH 2.85. Subsequently, GA and MA were dissolved in sodium hydroxide (NaOH) and distilled water respectively prior to feeding into a continuous flow reactor. The experiment was conducted at temperature between 170 to 250 oC while residence time was fixed at 100 s. The liquid product was analysed with HPLC equipped with sugar column. The results demonstrated significant reduction of both acids. The activation energy (Ea) and pre-exponential factor (A) were also calculated. In summary, the degradation characteristics of GA and MA under hydrothermal condition were clearly elucidated.

• Lecture: Hitoshi KAWASAKI

M1 Student, Graduate School of Engineering, Hiroshima University

“Mass transfer characteristics of cellulose under hydrothermal condition”

Hydrothermal treatment of cellulose has been studied to convert cellulose to glucose. 　However, it is hard to control hydrothermal treatment of cellulose because glucose produced from cellulose can be decomposition products. Therefore, it is expected to get the high yield of hydrolysis products from cellulose for now. For that, it is needed to consider the behavior of cellulose under hydrothermal condition. Especially, mass transfer of cellulose to dissolve into the water is important. However, mass transfer of cellulose has not been studied yet.So the purpose of this study is to elucidate mass transfer characteristics of cellulose under hydrothermal condition.

• Chair: Thachanan SAMANMULYA

Assistant Professor, Institute of Engineering, Hiroshima University

[Inquiries about this article]



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