首頁 > 網路資源 > 大同大學數位論文系統

Title page for etd-0831111-174941


URN etd-0831111-174941 Statistics This thesis had been viewed 3079 times. Download 5201 times.
Author Chia-wen Cheng
Author's Email Address No Public.
Department Bioengineering
Year 2010 Semester 2
Degree Master Type of Document Master's Thesis
Language zh-TW.Big5 Chinese Page Count 58
Title Properties of Microemulsion Containing 3-O-Ethyl Ascorbic Acid
Keyword
  • 3-O-Ethyl Ascorbic Acid
  • Ascorbic Acid
  • Microemulsion
  • Percutaneous penetration
  • Percutaneous penetration
  • Microemulsion
  • Ascorbic Acid
  • 3-O-Ethyl Ascorbic Acid
  • Abstract Microemulsion is easy to prepare with high stability, and enhance the bioavailability. The properties of micoremulsion containing vitamin C and 3-o-ethyl ascorbic acid respectively, including pH, viscosity, mean particle diameter, refractive index during storage were determined in this study. In vitro transdermal penetration of 3-o-ethyl ascorbic acid in microemulsion was also compared with conventional emulsion. The results showed that pH of microemulsion with 3-o-ethyl ascorbic acid
    reduced at 45℃. However, changes in viscosity, mean particle diameter, refractive index of micoremulsion containing vitamin C and 3-o-ethyl ascorbic acid were not found during storage at 25 and 45℃. It was noted that the content of vitamin C in microemulsion decreased from 1.98% to ca. zero after storage for 79 d at 25 and 45℃. On the other hand, the content of 3-o-ethyl ascorbic acid was similar during storage. Transdermal penetration of 3-o-ethyl ascorbic acid in microemulsion was higher than that in conventional emulsion.
    Advisor Committee
  • Shiow-Ling Lee - advisor
  • Cheng-Chun Chou - co-chair
  • I-Ching Kuan - co-chair
  • Files indicate access worldwide
    Date of Defense 2011-07-29 Date of Submission 2011-08-31


    Browse | Search All Available ETDs