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Updated: May 5, 2026

Extraction of Plant-based Capsules for Microencapsulation Applications
Published on: November 9, 2016
Based OSA starch-based microcapsules from Pickering emulsion templates for functional sustained release of pepper
Yitong Wang1, Hui Teng1, Ruizi Zhou2
1Shenzhen Institute of Guangdong Ocean University, Shenzhen 518108, China; College of Food Science and Technology, Guangdong Ocean University, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, Guangdong Provincial Engineering Technology Research Center of Seafood, Key Laboratory of Advanced Processing of Aquatic Product of Guangdong Higher Education Institution, Zhanjiang 524088, China.
Abstract:
Pepper essential oil has the effect of anti-inflammatory, anti-oxidant and anti-bacterial activity. Enhance stability and solubility of oil using food-compatible Pickering emulsions. In this study, pepper essential oil of terpenes accounted for 76.11 % and the alcohols accounted for 6.58 %. At the same time, the relatively high fatty acid components were 29.50 % linoleic acid and 26.89 % palmitic acid in pepper essential oil. Then, Pickering emulsion incorporating octenyl succinic acid starch (OSA starch) was employed for the encapsulation of the essential oil. Under prepared conditions of Pickering emulsion, the minimum particle size was 2.11 ± 0.12 μm, the droplet morphology was smooth and uniform. Pickering emulsion has high stability within 30 d, which also can effectively delay the aroma release rate of essential oils. The emulsion showed higher antioxidant effect than the pure pepper essential oil. The same trend was observed with strong anti-bacterial and anti-inflammatory activity. Microcapsules were successfully prepared to reduce free fatty acid production. The results obtained demonstrated that the pepper essential oil contained with OSA starch Pickering emulsion has enormous potential for application in the food industry.
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