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

Society of Cosmetic Scientists of Korea (대한화장품학회)
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The Effects of Ethanol on Nano-emulsions Containing Quercetin Prepared by Emulsion Inversion Point Method

에멀젼 반전법으로 제조된 쿼세틴을 함유하는 나노에멀젼에 대한 에탄올의 영향

  • Park, Soo-Nam (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology) ;
  • Won, Bo-Ryoung (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology) ;
  • Kang, Myung-Kyu (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology) ;
  • Ahn, You-Jin (Department of Fine Chemistry, College of Nature and Life Science, Seoul National University of Technology)
  • 박수남 (서울산업대학교 자연생명과학대학 정밀화학과) ;
  • 원보령 (서울산업대학교 자연생명과학대학 정밀화학과) ;
  • 강명규 (서울산업대학교 자연생명과학대학 정밀화학과) ;
  • 안유진 (서울산업대학교 자연생명과학대학 정밀화학과)
  • Published : 2009.06.30
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Abstract

The objective of this study was to find out the stable formulation of nano-emulsion containing high concentration of quercetin and to investigate the effect of an ethanol on the nano-emulsion prepared by POE (30) hydrogenated castor oil (HCO-30)/oil/quercetin/ethanol/water system. Nano-emulsion was prepared using emulsion inversion point (EIP) method as low-energy method plus homogenizer as high-energy method. To evaluate effect of ethanol and other components on the nano-emulsion, physical properties such as droplet size, morphology, and size distribution were determined. The optimal quercetin concentration was 0.2 % on the nano-emulsion. The droplet diameter was below 300 nm at the HCO-30 concentration below 2.00 %. Nano-emmulsion containing 4.75 % HCO-30 was the most stable and its mean droplet size was 172.40 nm. Finally, the size of nano-emulsion containing 4.00 % ethanol was 128.15 nm and size distribution was also narrow. The results showed that the breakdown process of this nano-emulsion could be attributed to Ostwald ripening. This study about effect of ethanol on the nano-emulsion showed that loading capacity of drug could be increased by using a small amount of ethanol. As prepared stable nano-emulsion, this study showed that these results could be applied to pharmaceutics, cosmetic including skin-care products, perfume and etc.

본 연구에서는 고농도의 쿼세틴을 함유하는 안정한 나노에멀젼의 조성을 찾고 POE (30) hydrogenated castor oil (HCO-30)/오일/쿼세틴/에탄올/물로 이루어진 나노에멀젼에 대한 에탄올의 영향을 연구하였다. 나노에멀젼은 저에너지법인 emulsion inversion point (EIP) 법과 고에너지법인 균질기(homogenizer)를 병합하여 제조하였다. 나노에멀젼에 대한 에탄올과 다른 성분들의 영향을 평가하기 위해 입자 크기, 에멀젼의 형태, 그리고 입자 분포와 같은 물리적 특성을 조사하였다. 나노에멀젼에 대한 쿼세틴의 최적 농도는 0.2 %였다. 계면활성제인 POE (30) hydogenated castor oil (HCO-30) 농도에 따른 나노에멀젼의 입자 크기를 보면, 2.00 %부터는 에멀젼의 입자 크기는 300 nm 이하였으며 HCO-30을 4.75 % 함유하는 나노에멀젼이 가장 안정하고 입자 크기도 172.40 nm로 나타났다. 마지막으로 에탄올 4.00 %를 함유한 나노에멀젼의 입자 크기는 128.15 nm이고 입도 분포 또한 좁게 나타났다. 나노에멀젼의 불안정화 과정은 Ostwald ripening에 의한 것으로 보여진다. 나노에멀젼에 대한 에탄올의 영향을 연구함으로써 소량의 에탄올을 이용하여 약물의 봉입률을 증가시킬 수 있으며, 안정한 나노에멀젼을 만듦으로써 스킨 로션, 에센스 및 향수와 같은 화장품과 제약 등에 응용될 수 있을 것으로 사료된다.

Keywords

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