대한화장품학회지 (Journal of the Society of Cosmetic Scientists of Korea)

  • 제39권1호
  • /
  • Pages.47-54
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  • 2013
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  • 1226-2587(pISSN)
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  • 2288-9507(eISSN)
대한화장품학회 (Society of Cosmetic Scientists of Korea)
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알로에 겔 마이크로캡슐의 고농도 현탁액의 제조 및 특성

Preparation and Characterization of Dense Suspension of Aloe Gel Microcapsule

  • 고남경 (강원대학교 공과대학 생물공학과) ;
  • 이진실 (강원대학교 공과대학 생물공학과) ;
  • 이신영 (강원대학교 공과대학 생물공학과) ;
  • 허원 (강원대학교 공과대학 생물공학과)
  • Go, Nam Kyung (Department of Bioengineering and Technology, Kangwon National University) ;
  • Lee, Jin Sil (Department of Bioengineering and Technology, Kangwon National University) ;
  • Lee, Shin Young (Department of Bioengineering and Technology, Kangwon National University) ;
  • Hur, Won (Department of Bioengineering and Technology, Kangwon National University)
  • 투고 : 2012.10.17
  • 심사 : 2013.02.08
  • 발행 : 2013.03.31
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초록

알로에 겔이 분산된 W/O 에멀젼을 감압 건조하는 방법으로 분산상의 수분을 제거하여 알로에 겔 마이크로캡슐을 제조하였다. 마이크로캡슐은 미네랄오일로 세척하고 재현탁시켜 유화제를 제거한 후에도 안정적인 현탁액으로 유지되었으며, 내부가 균일하게 채워진 직경 6.6 ${\mu}m$ 이하인 구형 입자로 구성되어 있었다. 미네랄오일에 재현탁된 마이크로캡슐은 분율이 41% 이상에서 급격하게 점도가 증가하였고, 300 Pa 이상의 항복응력을 가진 전단유동화 특성을 나타내었으나, 틱소트로피는 뚜렷하게 관찰되지 않는 유변학적인 특성을 보였다. 오일에 현탁된 알로에 겔 마이크로캡슐의 분율이 높을수록 반고체의 특성이 증가하고 $105^{\circ}C$에서 15 min 동안 가열하여도 에멀젼의 안정성이 유지됨을 경시적으로 관찰하였다. 따라서 알로에 겔 마이크로캡슐 현탁 크림을 기본 제형으로 다양한 종류의 알로에 겔 화장품의 개발이 가능할 것으로 예상된다.

Aloe gel microcapsule was prepared by dehydrating dispersed aloe gel droplets in the form of W/O emulsion using a vacuum evaporator. The microcapsules remained in stable suspensions after washing with mineral oil and had a homogeneous spherical structure with diameter less than 6.4 ${\mu}m$. The microcapsule suspension in mineral oil (> 41%) exhibited a step increase in viscosity and shear-thinning but not showed thixotropic behavior with a yield stress higher than 300 Pa. The dense suspension appeared to be semi-solid as the microcapsule fraction increases and to be stable after heat treatment at $105^{\circ}C$ for 15 min. In conclusion, the dense suspension composed of gel microcapsules is expected to provide a basic cosmetic formulation that can be applied to develop various types of aloe gel cosmetic products.

키워드

참고문헌

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