Nanotechnology applications in dairy industry: Safety and quality enhancement

Abstract:

Nanotechnology has emerged as a transformative technology with significant potential to enhance the safety, quality, functionality, and shelf life of dairy products. The unique physicochemical properties of nanomaterials, including their high surface area, improved reactivity, and enhanced bioavailability, have enabled the development of innovative applications across the dairy industry. This review provides a comprehensive overview of recent advances in nanotechnology and their applications in dairy processing, packaging, preservation, and quality assurance. Nanotechnology-based approaches such as nanoencapsulation, nanoemulsions, nanocomposites, nanosensors, and antimicrobial nanoparticles have been extensively investigated for improving nutrient delivery, product stability, microbial safety, and sensory attributes. Nanoencapsulation techniques have shown considerable promise in protecting sensitive bioactive compounds, probiotics, vitamins, and omega-3 fatty acids from degradation while enhancing their controlled release and bioavailability. Furthermore, intelligent packaging systems incorporating nanomaterials can monitor product freshness, detect contaminants, and extend shelf life through improved barrier and antimicrobial properties. Nanosensors offer rapid, sensitive, and real-time detection of pathogens, toxins, adulterants, and quality parameters, thereby strengthening food safety management systems. Despite these advantages, concerns regarding the potential toxicity, environmental impact, migration behavior, and regulatory aspects of nanomaterials remain critical challenges that require thorough investigation. Therefore, comprehensive risk assessment, standardized safety evaluation protocols, and clear regulatory frameworks are essential to ensure consumer acceptance and sustainable implementation. Overall, nanotechnology represents a promising tool for advancing the dairy sector by improving product quality, safety, nutritional value, and processing efficiency. Future research should focus on developing cost-effective, safe, and environmentally sustainable nanotechnology-based solutions for commercial dairy applications.