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Pickering Emulsions Simultaneously Stabilized by Starch Nanocrystals and Zein Nanoparticles: Fabrication,
Shengnan Tao1, Hang Jiang1, Suijing Gong1
1Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.
Langmuir : the ACS Journal of Surfaces and Colloids
|July 5, 2021
Summary
This study introduces an all-natural Pickering emulsion stabilized by starch nanocrystals and zein protein nanoparticles. These natural stabilizers create robust emulsions for delivering bioactive components, offering an eco-friendly alternative.
Area of Science:
- Materials Science
- Colloid and Surface Chemistry
Background:
- Pickering emulsions require stabilizers, often involving synthetic chemicals or complex treatments.
- Natural particle stabilizers offer a safer and more sustainable alternative for various industries.
Purpose of the Study:
- To develop an all-natural Pickering emulsion using synergistic stabilization.
- To investigate the role of electrostatic interactions between natural particles on emulsion stability.
- To demonstrate the emulsion's efficacy in carrying and protecting bioactive components.
Main Methods:
- Utilizing starch nanocrystals and zein protein nanoparticles as dual stabilizers.
- Investigating particle assembly at the oil/water interface.
- Assessing emulsion stability under thermal and UV stress.
- Evaluating the encapsulation and delivery of beta-carotene.
Main Results:
- Synergistic stabilization achieved using starch nanocrystals and zein protein nanoparticles.
- Electrostatic interactions between particles dictate interfacial structure and emulsion stability.
- Formation of particle bilayers enhanced emulsion robustness.
- Demonstrated effective encapsulation and protection of beta-carotene.
Conclusions:
- An all-natural Pickering emulsion stabilized by starch nanocrystals and zein protein nanoparticles was successfully developed.
- The electrostatic interactions and resulting particle assembly are key to achieving high emulsion stability.
- This system shows significant potential for protecting and delivering lipo-soluble bioactive compounds in food, cosmetic, and pharmaceutical applications.
