期刊
CARBOHYDRATE POLYMERS
卷 251, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2020.117110
关键词
Spray drying; Pickering emulsion; Chitosan; Alginate; pH-responsive; Oxidative stability; Mucoadhesive; Lipid digestion; Controlled release
资金
- Ministry of Higher Education, Malaysia [PRGS/2/2019/STG05/MUSM/01/1]
In this study, a multi-functional Pickering emulsion powder was developed using chitosan as a Pickering emulsifier and alginate as a coating material. The powder exhibited good oxidative stability, pH-responsiveness, mucoadhesivity, and controlled lipid digestibility, making it a potential delivery system for applications in the food industry.
The commercial application of liquid-state Pickering emulsions in food systems remains a major challenge. In this study, we developed a spray-dried Pickering emulsion powder using chitosan as a Pickering emulsifier and alginate as a coating material. The functionality of the powder was evaluated in terms of its oxidative stability, pH-responsiveness, mucoadhesivity, and lipid digestibility. The Pickering emulsion powder was oxidatively more stable than the conventional emulsion powder stabilized by gum Arabic. The powder exhibited pH-responsiveness, whereby it remained intact in acidic pH, but dissolved to release the emulsion in 'Pickering form' at near-neutral pH. The Pickering emulsion powder was also mucoadhesive and could be digested by lipase in a controlled manner. These findings suggested that the multi-functional Pickering emulsion powder could be a potential delivery system for applications in the food industry.
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