Prospects and challenges of nanomaterials in sustainable food preservation and packaging: a review

The Paper of the Day discusses the role of nanomaterials in sustainable food preservation and packaging. Nanotechnology offers unique solutions to extend food shelf life, enhance safety, and reduce environmental impact. Nanocomposite materials in food packaging can release preservatives, prevent microbial contamination, and respond to environmental changes. Active packaging systems, which absorb gasses or release antioxidants, and smart packaging, which indicates spoilage through sensors, are highlighted. Examples include silver and zinc oxide nanoparticles, which provide antimicrobial properties, and nanoclays, which improve mechanical strength and barrier capabilities. Despite these benefits, regulatory challenges and health concerns regarding nanoparticle migration persist. The article emphasizes the need for further research on toxicity and biodegradability for broader adoption of nanotechnology in food packaging