P17 超音波による不飽和脂肪酸およびそのエステル誘導体の乳化分散(ポスターセッション)

概要

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In recent years, alga biomass is focused since oil algae occur can save energy problems when used as a conventional oil extraction from the plants. As alternative method therefore, we studied emulsification and dispersion by ultrasound as new oil extraction from algae. So, a marine alga contains a lot of unsaturated fatty acid. For example, eicosapentaenoic acid (EPA) and ethyl eicosapentaenoic acid (EPA-E), was unsaturated fatty acid and ester derivatives respectively. These are used in health food and drug. Therefore in this study, emulsification and dispersion of EPA and EPA-E by ultrasound (US) was studied as characteristic. For 0.25 μL (or 1, 5, 10μL) of EPA or EPA-E in 20mL of water used. The oil/water solution was radiated with ultrasound (23, 43 and 141kHz; 30W), and then became to be emulsion. The droplet of the emulsion size was measured using a laser diffraction particle size analyzer. EPA and EPA-E became stable emulsification by 23, 43 and 141kHz (30W). Droplet size of EPA was not observed by frequency dependence, but EPA-E was changed by frequency and concentration.
日本ソノケミストリー学会の論文
2013-10-25