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Preparation and physical stability evaluation of palm oil-based nanoemulsion as a drug delivery system for propofol
Bayu Eko Prasetyo1, Norazrina Azmi2, Ahmad Fuad Shamsuddin3.
The objective of this study was to develop a formulation for propofol injection at various concentrations (1 and 2%)
using palm oil-based nanoemulsion as the carrier. The nanoemulsions were characterised by globule size distribution
(Dv 90 value), zeta potential, pH and viscosity determination. The physicochemical stability and accelerated stability
of the formulations were also evaluated. Stability studies were performed for 6 months at 4, 16, 25 and 40o
C storage
temperatures. The propofol content was analysed by HPLC study. The characterisation result of propofol nanoemulsion 1
and 2% showed good globule size distributions in Dv 90 values of 284 ± 1.15 nm and 304 ± 1.20 nm and also stable zeta
potential values of-43.37 ± 0.96 mV and -40.97 ± 1.36 mV, respectively. Accelerated test showed that the formulations
have excellent stability with no physical changes observed after centrifugation, autoclaving at 121o
C for 15 mins, shaking
for 12 hours and thermal cycling test. The stability studies indicated that propofol emulsion show good stability for 6
months when stored at 4 ± 1o
C and 16 ± 1o
C based on Dv 90 values, zeta potential, and pH readings. No changes in
propofol concentrations were observed after 6 months storage. Overall, propofol in palm oil-based nanoemulsions as
carrier was found to be stable and can be used as an alternative anaesthetic injection.
Affiliation:
- Universitas Sumatera Utara, Indonesia
- Universiti Kebangsaan Malaysia, Malaysia
- Universiti Kuala Lumpur Royal College of Medicine Perak, Malaysia
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