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Helena Ljusberg Wahren

Helena Ljusberg-Wahren

Innovationsutvecklare

Helena Ljusberg Wahren

Enzymatic characterization of lipid-based drug delivery systems

Författare

  • Helena Ljusberg
  • F S Nielsen
  • M Brogard
  • Emma Troedsson
  • A Mullertz

Summary, in English

The present work introduces a simple and robust in vitro method for enzymatic characterisation of surface properties of lipid dispersions in aqueous media. The initial lipolysis rate in biorelevant media, using pancreatic lipase and a self-microemulsifying formulation (SMEDDS) containing digestible lipids as substrate, was determined. The impact of incorporating two sparingly water soluble model drugs, probucol and halofantrine, into the SMEDDS was studied. It was found that both model drugs reduced the initial rate of lipolysis compared with the vehicle, probucol having a larger effect than halofantrine. The reduction of initial lipolysis rate indicates that probucol and halofantrine are bound in the water/emulsion interface limiting the substrate availability.

Avdelning/ar

  • LU Innovation

Publiceringsår

2005

Språk

Engelska

Sidor

328-332

Publikation/Tidskrift/Serie

International Journal of Pharmaceutics

Volym

298

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Food Engineering

Nyckelord

  • Self-microemulsifying drug delivery system
  • Lipolysis
  • Probucol
  • Halofantrine

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1873-3476