Engineering probiotics through tailored processing and encapsulation for superior viability and delivery: A review

Area of Science:

• Microbiology
• Food Science
• Biotechnology

Background:

• Probiotics offer health benefits but are vulnerable to stressors during processing and storage.
• This instability reduces viable cell counts, limiting therapeutic efficacy and industrial use.
• Current strategies for probiotic protection are often isolated, lacking systematic integration.

Purpose of the Study:

• To comprehensively review and synthesize advanced technologies for improving probiotic stability and delivery.
• To elucidate mechanisms, compare approaches, and identify translational challenges for industrial probiotic applications.
• To propose next-generation paradigms for enhanced probiotic processing and formulation.

Main Methods:

• Systematic synthesis of five key technological strategies: microencapsulation, freeze-drying, nanotechnology, non-thermal processing, and directed fermentation.
• Elucidation of underlying mechanisms and critical process parameters for each approach.
• Quantitative evaluation of encapsulation efficiency and viability retention, alongside discussion of translational hurdles.

Main Results:

• Individual technologies demonstrate potential for enhancing probiotic stability and targeted delivery.
• Comparative analysis reveals distinct advantages and limitations for each processing strategy.
• Key translational challenges include scalability, cost-effectiveness, and regulatory approval.

Conclusions:

• Advanced processing technologies are essential for overcoming probiotic instability.
• Material-process-strain co-design, integrated engineering, and AI-driven optimization are promising future directions.
• These strategies can enable more efficient, stable, and scalable probiotic applications in food and pharmaceuticals.