DOI QR코드

DOI QR Code

비이온성 혼합계면활성제를 이용한 O/W 유화액의 제조 : CCD-RSM을 이용한 최적화

Emulsification of O/W Emulsion Using Non-ionic Mixed Surfactant: Optimization Using CCD-RSM

  • 이승범 (단국대학교 화학공학과) ;
  • 리광종 (단국대학교 화학공학과) ;
  • 줘청량 (단국대학교 화학공학과) ;
  • 홍인권 (단국대학교 화학공학과)
  • Lee, Seung Bum (Department of Chemical Engineering, Dankook University) ;
  • Li, Guangzong (Department of Chemical Engineering, Dankook University) ;
  • Zuo, Chengliang (Department of Chemical Engineering, Dankook University) ;
  • Hong, In Kwon (Department of Chemical Engineering, Dankook University)
  • 투고 : 2019.07.30
  • 심사 : 2019.09.02
  • 발행 : 2019.10.10

초록

본 연구에서는 palm oil과 서로 다른 HLB (hydrophile-lipophilie balance) value를 갖는 Tween-Span계 비이온성 계면활성제를 혼합하여 O/W (oil in water) 유화액을 제조하고, 유화액의 유화안정성을 향상시키기 위한 최적 유화조건을 결정하였다. 이를 위해 CCD-RSM (central composite design model-response surface methodology)을 이용하여 각 계량인자의 주효과 및 교호효과를 해석하였으며, 두 가지 반응치를 동시에 만족하는 최적조건을 결정하였다. CCD-RSM의 계량인자로는 유화시간, 유화속도, HLB value, 계면활성제의 첨가량 등을 설정하고, 반응치로는 O/W 유화액의 점도와 평균액적크기를 설정하였다. CCD-RSM 최적화 분석결과 반응치인 O/W 유화액이 점도와 평균액적크기의 목표치를 동시에 부합하는 최적조건은 유화시간(12.7 min), 유화속도(5,551 rpm), HLB value (8.0), 계면활성제의 첨가량(5.7 wt.%)으로 산출되었으며, 이 조건에서의 CCD-RSM 예측결과는 점도(1,551 cP)와 평균액적크기(432 nm)이었다. 이 조건의 실제 실험 결과 오차율은 2.5% 이하로 나타나 O/W 유화액 제조과정에 CCD-RSM 최적화 분석을 적용할 경우 비교적 높은 유의수준의 만족하는 결과를 얻을 수 있었다.

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