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Recent Progress in Probiotic Encapsulation: Techniques, Characterization and Food Industry Prospects
1College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 310058, China.
Foods (Basel, Switzerland)
|February 13, 2026
Summary
Encapsulation techniques protect probiotics, enhancing their stability and survival in foods and the gastrointestinal tract. This review covers methods like spray drying and novel nanocoatings for improved functional foods.
Area of Science:
- Food Science and Technology
- Biotechnology
- Materials Science
Background:
- Probiotics offer health benefits but suffer from poor stability during food processing, storage, and digestion.
- Encapsulation is a key strategy to improve probiotic viability and controlled release.
Purpose of the Study:
- To review recent advancements in encapsulation techniques for probiotics in food applications.
- To highlight the role of natural and synthetic materials in enhancing probiotic stability.
- To discuss emerging technologies and future research directions.
Main Methods:
- Review of established encapsulation methods: spray drying, freeze drying, coacervation, liposome formation.
- Exploration of novel techniques: multilayer nanocoatings, dual-core systems, cell-mediated coatings.
- Analysis of various biopolymers (alginate, chitosan, pectin) and food-grade materials.
Main Results:
- Encapsulation significantly improves probiotic stability in food matrices and resistance to gastrointestinal conditions.
- Natural biopolymers and advanced coating technologies enhance probiotic survival and delivery.
- Functional foods with improved health benefits are achievable through optimized encapsulation.
Conclusions:
- Encapsulation is crucial for realizing the full potential of probiotics in functional foods.
- Challenges include scalability, encapsulation efficiency, and regulatory hurdles.
- Future research should focus on material optimization, synergistic compounds, and system-wide performance.
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