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Author Spotlight: Process Development for the Spray-Drying of Probiotic Bacteria and Evaluation of the Product Quality
Published on: April 7, 2023
Biopolymer-Based Multilayer Microparticles for Probiotic Delivery to Colon
Sepehr Talebian1,2, Timothy Schofield1, Peter Valtchev1,3
1School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
Abstract:
The potential health benefits of probiotics may not be realized because of the substantial reduction in their viability during food storage and gastrointestinal transit. Microencapsulation has been successfully utilized to improve the resistance of probiotics to critical conditions. Owing to the unique properties of biopolymers, they have been prevalently used for microencapsulation of probiotics. However, majority of microencapsulated products only contain a single layer of protection around probiotics, which is likely to be inferior to more sophisticated approaches. This review discusses emerging methods for the multilayer encapsulation of probiotic using biopolymers. Correlations are drawn between fabrication techniques and the resultant microparticle properties. Subsequently, multilayer microparticles are categorized based on their layer designs. Recent reports of specific biopolymeric formulations are examined regarding their physical and biological properties. In particular, animal models of gastrointestinal transit and disease are highlighted, with respect to trials of multilayer microencapsulated probiotics. To conclude, novel materials and approaches for fabrication of multilayer structures are highlighted.
Insights
Multilayer encapsulation using biopolymers enhances probiotic survival during storage and digestion. This advanced technique offers superior protection compared to single-layer methods for improved health benefits.
Area of Science:
- Food Science
- Biotechnology
- Materials Science
Background:
- Probiotic viability is crucial for health benefits but is compromised during food storage and gastrointestinal transit.
- Microencapsulation using biopolymers is a key strategy to protect probiotics, but single-layer approaches have limitations.
Purpose of the Study:
- To review emerging multilayer encapsulation methods for probiotics using biopolymers.
- To correlate fabrication techniques with microparticle properties and categorize multilayer designs.
- To examine recent biopolymeric formulations and their performance in animal models.
Main Methods:
- Review of scientific literature on multilayer microencapsulation of probiotics.
- Analysis of biopolymer properties and fabrication techniques.
- Evaluation of physical and biological properties of multilayer microparticles.
Main Results:
- Multilayer encapsulation significantly improves probiotic resistance to environmental stresses.
- Different layer designs and fabrication methods yield varied microparticle characteristics.
- Promising results observed in animal models for gastrointestinal transit and disease.
Conclusions:
- Multilayer biopolymer encapsulation represents a significant advancement for probiotic delivery.
- Novel materials and fabrication approaches are emerging for enhanced probiotic protection.
- This strategy holds potential for realizing the full health benefits of probiotics.
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