Rheology of palm olein emulsions stabilized by non-ionic surfactants as potential carriers for drug delivery

Ahmad, Kausar and Mohd Nawi, Mohamed Sufian (2006) Rheology of palm olein emulsions stabilized by non-ionic surfactants as potential carriers for drug delivery. In: National Seminar on Science Technology & Social Science 2006, 30th-31st May 2006, Swiss Garden Resort & Spa, Kuantan, Pahang.

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Abstract

Palm olein emulsions were prepared by homogenising the oil with varied ratios of sorbitan monolaurate (Span 20®) and polyoxyethylene 20 sorbitan monolaurate (Tween 20®). Viscosity changes of these emulsions with and without Tragacanth gum, were measured. The viscosity of emulsions increased drastically with increasing ratios of Span 20/Tween 20, and decreased with increasing shear rate, indicating shear thinning. As the ratio of Span 20/Tween 20 increased to 1: 0.4 ratio, a small amount of hysteresis was observed. Significant thixotropic behaviour was noted with the addition of 0.01% Tragacanth gum into the oil emulsion.

Item Type:	Conference or Workshop Item (Poster)
Additional Information:	4551/44979
Uncontrolled Keywords:	Palm olein emulsion, viscosity modifier, drug carrier, rheological properties
Subjects:	Q Science > QD Chemistry R Medicine > RS Pharmacy and materia medica
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Pharmacy > Department of Pharmaceutical Technology
Depositing User:	DR KAUSAR AHMAD
Date Deposited:	18 Nov 2015 16:27
Last Modified:	18 Nov 2015 16:27
URI:	http://irep.iium.edu.my/id/eprint/44979

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