Extraction And Characterization Of Moringa Oleifera Kernel Oil And Encapsulation By Coaxial Electrospinning
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Date
2019-02
Authors
Oluwafunke Toyin, Afolabi- Owolabi
Journal Title
Journal ISSN
Volume Title
Publisher
Universiti Sains Malaysia
Abstract
Moringa oleifera (Mo) belong to the family Moringaceae with 14species,
originated from South America, Africa and Indian Subcontinent. The kernel can be
used for oil production, medicine, food supplement and water purification. In this
study, four different types of extraction methods; namely cold pressing (CP), enzyme
assisted cold pressing (EACP), enzyme assisted aqueous extraction (EAAE) and
solvent extraction (SE) were used to produce oil from Mo kernel. The oil yield and oil
recovery obtained were 8% and 23% for CP, 12% and 36% for EACP, 23% and 70%
for EAAE and 23% and 99% for SE, respectively. The influence of different extraction
methods on the microstructure of Mo kernel and flake were investigated. The
physicochemical properties, antioxidant properties, oxidative activities and storage
stability of the extracted oil were assessed. The fatty acid profile of the extracted oil
was analysed using Gas Chromatography Mass Spectroscopy (GCMS), which reveal
the monounsaturated fatty acid (MUFA) content range from 69 to 80%. Oleic acid
found to be dominant in the Mo kernel oil, indicating its high stability towards
oxidation. Thermal analysis of oil was also investigated using Differential Scanning
Calorimetry (DSC). The result shows that different extraction method has significant
effect on melting behaviour of Mo kernel oil. Based on the physicochemical properties,
oxidative stability and fatty acid composition, CP oil was selected to be analyzed
further by testing for its antioxidant properties and the effect of thermal degradation
towards tocopherol content using High Performance Liquid Chromatography (HPLC).
Description
Keywords
Moringa Oleifera , Coaxial Electrospinning