3-4-1 海藻の亜臨界水処理による付加価値向上技術(3-4 水熱・超臨界1,Session3 バイオマス等,研究発表)

概要

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We have used pure water under its critical point for treatment of a macroalgae. The Codium Fragile green alga was selected as model for the macroalgae. The treatment temperature ranged from 100℃ to 240℃ for 10 min. After treatment, based on decomposition of the algae, three main phases were obtained; aqueous phase, solid phase, and hexane soluble phase. For aqueous phase, total organic carbon (TOC), total soluble sugars as well as other valuable products was analyzed. The studies on the remained solid phase showed that it consisted mainly un-reacted algae along with as content of the algae. In fact, higher ash content of the sample was identified (about 35-40% based on dry matter) which is attributed to the inorganic compounds. It was realized that hexane soluble of this type of the algae is low in quantity.
2011-08-09