Effect of polymer and polymer blends on encapsulation efficiency of spray-dried microencapsulated flaxseed oil

Yasmin I., . and Hayee A., . and Maqsood M., . and Ciftci O. N., . and Khan M. R., . and Shabbir M. A., . and Naz S., . and Aadil R. M., . and Sameen A., . Effect of polymer and polymer blends on encapsulation efficiency of spray-dried microencapsulated flaxseed oil. pp. 78-87. ISSN 2231-7546

Flaxseed oil emulsions were prepared by homogenising flaxseed oil gum Arabic (GA) maltodextrin (MD) and inulin (IN) in water (polymers were used alone and in combinations). Emulsions were analysed for their stability and viscosity. Results indicated that emulsions containing IN showed some layer separation while most of the emulsions were stable before spray-drying. The microparticles obtained after spray-drying were analysed for encapsulation efficiency surface oil density flowing properties moisture water activity colour parameters (L aand b) particle size morphology dissolution behaviour X-ray diffraction (XRD) pattern and differential scanning colorimetery (DSC). All the encapsulated flaxseed oil powders (EFOPs) showed a bimodal particle size distribution with average particle size in the range of 1.18 to 9.80 m. GA:MD (1:1) showed the highest encapsulation efficiency (92) and lower surface oil. Scanning electron micrographs depicted spherical particles with no apparent cracks. IN yielded smooth-surfaced microparticles. DSC thermograms depicted that microcapsules were thermally stable. XRD analysis showed that most of the EFOPs were amorphous and spray-drying did not change the structure of wall materials. Dissolution behavior showed that presence of IN increased the solubility of EFOPs in water at room temperature. Hence it is concluded that IN and MD effectively support GA in encapsulating flaxseed oil.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/27%20(01)%202020/08%20-...

Abstract

Flaxseed oil emulsions were prepared by homogenising flaxseed oil gum Arabic (GA) maltodextrin (MD) and inulin (IN) in water (polymers were used alone and in combinations). Emulsions were analysed for their stability and viscosity. Results indicated that emulsions containing IN showed some layer separation while most of the emulsions were stable before spray-drying. The microparticles obtained after spray-drying were analysed for encapsulation efficiency surface oil density flowing properties moisture water activity colour parameters (L aand b) particle size morphology dissolution behaviour X-ray diffraction (XRD) pattern and differential scanning colorimetery (DSC). All the encapsulated flaxseed oil powders (EFOPs) showed a bimodal particle size distribution with average particle size in the range of 1.18 to 9.80 m. GA:MD (1:1) showed the highest encapsulation efficiency (92) and lower surface oil. Scanning electron micrographs depicted spherical particles with no apparent cracks. IN yielded smooth-surfaced microparticles. DSC thermograms depicted that microcapsules were thermally stable. XRD analysis showed that most of the EFOPs were amorphous and spray-drying did not change the structure of wall materials. Dissolution behavior showed that presence of IN increased the solubility of EFOPs in water at room temperature. Hence it is concluded that IN and MD effectively support GA in encapsulating flaxseed oil.

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Item Type:	Article
AGROVOC Term:	Flaxseed oil
AGROVOC Term:	Polymers
AGROVOC Term:	Blending
AGROVOC Term:	Encapsulation
AGROVOC Term:	Microencapsulation
AGROVOC Term:	Spray drying
AGROVOC Term:	Inulin
AGROVOC Term:	Thermal balance
AGROVOC Term:	Emulsions
AGROVOC Term:	Volatile compounds
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/8974

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