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Vol. 27 No. 9 (2015): Vol 27 Issue 9

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Phase Behaviour Study of Pitaya Seed Oil: Jojoba Oil with Non-Ionic Surfactants in Emulsion System

https://doi.org/10.14233/ajchem.2015.18891
Siti Salwa Abd Gani
Department of Chemistry, Faculty of Science, University Putra Malaysia, Selangor, Malaysia; Halal Products Research Institute, University Putra Malaysia, Selangor, Malaysia
Norsuhaili Kamairudin
Halal Products Research Institute, University Putra Malaysia, Selangor, Malaysia
Rawaida Liyana Razalli
Department of Chemistry, Faculty of Science, University Putra Malaysia, Selangor, Malaysia
Mahiran Basri
Department of Chemistry, Faculty of Science, University Putra Malaysia, Selangor, Malaysia

Corresponding Author(s) : Siti Salwa Abd Gani

ssalwaag@upm.edu.my; ssalwa.abdgani@gmail.com

Asian Journal of Chemistry, Vol. 27 No. 9 (2015): Vol 27 Issue 9

Abstract

Pitaya seed contains good antioxidant capacity while jojoba contains many different varieties of tocopherols which make up vitamin E to promote healthy and clear skin. The phase behaviour of systems has been investigated by constructing ternary phase diagrams consisting of pitaya seed oil: jojoba oil/non-ionic surfactant/water. Different HLB value of non-ionic surfactants exhibit different ternary diagram characteristics. A lower HLB shows a more oil-soluble and a more water-soluble surfactant (larger homogeneous and isotropic region in ternary phase diagrams) whereas high value of HLB shows the reverse of that result. The results showed that the Tween85 gave better solubility in water to produce larger isotropic and homogeneous regions for jojoba oil, pitaya seed oil and pitaya seed oil: jojoba oil. The presence of optimal HLB value of Tween85 for the stabilization of o/w emulsions contributes to the enlargement of the single phase regions.

Keywords

Pitaya seed oil Jojoba oil Non-ionic surfactant Phase diagram Emulsion system
Salwa Abd Gani, S., Kamairudin, N., Liyana Razalli, R., & Basri, M. (2015). Phase Behaviour Study of Pitaya Seed Oil: Jojoba Oil with Non-Ionic Surfactants in Emulsion System. Asian Journal of Chemistry, 27(9), 3452–3456. https://doi.org/10.14233/ajchem.2015.18891
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