화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.28, No.10, 2044-2049, October, 2011
DOI10.1007/s11814-011-0088-3  Export Citation
Preparation of micro particles of functional pigments by gas-saturated solution process using supercritical carbon dioxide and polyethylene glycol
Kyung-Tae Kwon, Md. Salim Uddin, Go-Woon Jung, and Byung-Soo Chun†
  • Department of Food Science and Technology, Pukyong National University, Busan 608-737, Korea
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Particle design is presently a major development of supercritical fluids applications, mainly in the paint, cosmetic, pharmaceutical, and specialty chemical industries. The particles from the gas-saturated solutions (PGSS) process were used to micronize the functional compounds, fucoxanthin and astaxanthin. Fucoxanthin was extracted from brown seaweed using supercritical carbon dioxide (SC-CO2) at 20 MPa and 45 ℃. The particle formation of functional pigments with biodegradable polymer, polyethelene glycol (PEG) was performed by PGSS using SC-CO2 in a thermostatted stirred vessel. Different temperatures (40 and 50 ℃) and pressures (10-30MPa) were applied to optimize the conditions for the formation of functional pigment particles. Two nozzles of different diameter (250 and 300 μm) were used for PGSS and the reaction time was 1 hr. The average diameter of the particles obtained by PGSS at different conditions was about 0.78-1.42 μm.
Keywords:Micro Particles;Particles from Gas-saturated Solutions;Polyethelene Glycol;Astaxanthin;Fucoxanthin
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