Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Development of trans-cinnamaldehyde self-microemulsifying drug delivery system(SMEDDS) with superior stability

안정성이 우수한 신남알데히드 자가미세유화 약물전달시스템 개발

  • Bang, Kyu-Ho (Department of Pharmaceutical Engineering, Gyeongnam National University of Science and Technology) ;
  • Kim, Kyeong Soo (Department of Pharmaceutical Engineering, Gyeongnam National University of Science and Technology)
  • 방규호 (경남과학기술대학교 제약공학과) ;
  • 김경수 (경남과학기술대학교 제약공학과)
  • Received : 2019.10.08
  • Accepted : 2019.12.06
  • Published : 2019.12.31
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Abstract

This study was undertaken to develop a stable self-microemulsifying drug delivery system (SMEDDS) for trans-cinnamaldehyde, a known antibacterial and antifungal agent. A simultaneous analytical method was established for quantification of trans-cinnamaldehyde and its degradant, cinnamic acid. Various surfactants were applied to assess their effect on the aqueous solubility of trans-cinnamaldehyde, and pseudo-ternary phase diagrams were plotted. Of the various formulations tested, the liquid SMEDDS composed of trans-cinnamaldehyde (oil), Cremophor EL (surfactant) and Transcutol P (cosurfactant) at a volume ratio of 10/70/20, produced the smallest emulsion droplet size (around 23 nm). The stability test determined the superior stability of the trans-cinnamaldehyde SMEDDS with constant trans-cinnamaldehyde content and z-average diameter of emulsion, under accelerated and heat stressed condition. Thus, we believe that this novel trans-cinnamaldehyde SMEDDS formulation has the potential to be applied for the development of trans-cinnamaldehyde medicines in the pharmaceutical industry.

본 연구의 목적은 다양한 항균활성을 지닌 천연물 유래 물질 신남알데히드를 이용한 안정한 자가미세유화 약물전달시스템을 개발하는 것이다. 이러한 목표를 달성하기 위하여 신남알데히드의 주 분해산물인 신남산과 신남알데히드의 동시 정량법을 확립하였으며, 설정된 분석법을 이용한 용해도 시험으로 신남알데히드에 대한 용해도 개선효과가 우수한 계면활성제를 선별하였다. 계면활성제로 Cremophor EL, 공계면활성제로 Transcutol P를 이용한 신남알데히드의 pseudo-ternary phase diagram을 작성하여 에멀전의 입자크기를 최소화시킬 수 있는 조성비로 신남알데히드 : Cremophor EL : Trasncutol P = 10 : 70 : 20%(v/v/v)인 SMEDDS 조성물을 제조한 후 안정성 시험을 통해 신남알데히드의 함량변화 및 에멀전의 입자크기 변화에 대해 확인하였다. 본 연구를 통해 제조된 신남알데히드의 자가유화 나노에멀전은 신남산의 생성량이 적고 신남알데히드의 함량 저하 속도가 느려 안정성이 우수하였으며, 안정성 기간 중에 최초의 입자크기를 잘 유지하는 특성이 확인되었다. 따라서 이 조성물은 신남알데히드를 위한 의약품 제형으로의 활용 가능성이 높을 것으로 사료된다.

Keywords

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