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 38th seminar will be held as follows. Please join.



【Date & Time】　Fri.,29 Jan,2016 16:20-17:50



【Place】 Engineering 110 Lecture Room, Higashi-Hiroshima Campus, Hiroshima University

For the access to the venue, click here.

For the campus map, click here.

For the layout of the lecture rooms, click here. (Japanese page)



【Program】



Commentary: Yukihiko MATSUMURA (Professor, Institute of Engineering, Hiroshima University)

Chair: Thachanan SAMANMULYA (Special Postdoctral Reseacher,Hiroshima University)



Lecture: Lai Thi Hong Nhung

Visiting researcher, Graduate School of Advanced Sciences of Matter, Hiroshima University



“PREPARATION OF AN ANTIMICROBIAL CHITOSAN – NISIN FILM FOR THE MANGO STORAGE”



In Vietnam, using chemical compounds in the fruit preservation is very popular. These compounds not only harm people's health, but also tend to reduce the quality of the fruit. Therefore, it's necessary to study on antimicrobial films with a safety preservative bio-agents which are resistant the infection of inside and outside microorganisms that cause damage to the fruit. In this research, we have prepared a film that is combined between chitosan and nisin-an antimicrobial product obtained from lactic acid bacteria fermentation. This film is created as following recipe: 2% chitosan (w/v), 1% acetic acid (v/v), 1% glycerol (v/v) and nisin in the final concentration of 1000 IU/ml. We have demonstrated the antimicrobial activity of this film against the positive Gram bacteria strains, especially two pathogenic bacteria L. monocytogenes and B. cereus. This film is applied to the mango preservation, resulting in good condition in 12 days at room temperature.





Lecture: Daisuke Niki

M2 Student, Graduate School of Advanced Sciences of Matter, Hiroshima University



“Development of the technology of methane fermentation method for treating radioactive material pollution organic waste”



Today, the polluted plant biomass is disposed of by burning.

However, radioactive material might be scattered by this method.

Therefore, the purpose of this study is to decompose plant biomass by methane fermentation without letting radioactive material scatter and collect a methane as fuel.

In addition, it is aimed for an investigation into behavior of radioactive material before and after the methane fermentation because there is not the example which processed a polluted plant by methane fermentation so far.







Lecture: Yoshiki Akeyama

M2 Student, Graduate School of Engineering, Hiroshima University



“Supercritical water gasification of water soluble components in barley shochu residue”



Disposal of shochu residue is a serious proble for the shochu markers. Supercritical water gasification is effective for this kind of wet biomass, and its application to shochu residue is a promising solution. As biomass feedstock, shochu residue is desirable because it has low ash content. Shochu residue is composed of liquid phase and solid phase , and especially, liquid phase has no ash content, and thus is expected to gasify easily. The purpose of this study is to study the gasification characteristics of liquid phase of shochu residue in supercritical water.



“Reaction mechanism of barley shochu residue in supercritical water”



For effective utilization of wet biomass, supercritical water gasification (SCWG) has attracted attention. It is significant to determine the gasification characteristic of shochu (Japanese Distilled Liquor) residue which is one of the food wastes. Although the study was conducted using shochu residue as feedstock, it has not been clarified to confirm its reaction mechanism. The purpose of this study is to obtain knowledge the behavior of shochu residue in supercritical water.





※We will hold the discussion meeting from 18:00 (800 JPY needed). Join this meeting, too if you are available.



【Inquiries】

HOSTY Association (Graduate School of Engineering, Hiroshima University)

E-mail: bprc(AT)hiroshima-u.ac.jp（Please replace (AT) with @）