LOIS LAMTIUR FARADINA SIREGAR, 050911154 (2013) KARAKTERISASI SISTEM MIKROEMULSI TIPE W/O DENGAN BAHAN AKTIF OVALBUMIN (Perbandingan Surfaktan (Span 80-Tween 80) : Kosurfaktan (Butanol) 6:3, 7:3, 8:3). Skripsi thesis, UNIVERSITAS AIRLANGGA.

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Abstract

The aim of this study was to observe characterization water/oil microemulsions containing ovalbumin with different comparison of surfactants (Span 80-Tween 80) : cosurfactant (Butanol) 6:3, 7:3 and 8:3. Three microemulsion formulations were examined for organoleptic, conductivity, and droplet size distributions. Those three microemulsion formulations showed similarity organoleptic (yellow color, transparent and high fluidity solution). According to droplet size measurement, microemulsion prepared with surfactants (Span 80-Tween 80) : cosurfactant (Butanol) 8:3 showed the smallest droplet size value (870,8 ± 24,3 nm) among all formulations. This microemulsion was chosen to loaded by ovalbumin. Results showed that ovalbumin-loaded microemulsion have similarity organoleptic with unloaded ovalbumin microemulsion. The conductivity showed that ovalbumin-loaded microemulsion have lower conductivity values than unloaded ovalbumin microemulsion. While the solubility of ovalbumin showed 0,5%. In conclusion, microemulsion prepared with 8:3 surfactants (Span 80-Tween 80) : cosurfactant (butanol) might be more appropriate formulation than the other two formulations.

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