Quercetin infused starch matrix as a sustainable approach to smart packaging: A comprehensive review

Starch-quercetin films characterize an innovative approach in the development of functional packaging solutions with sustainable and biodegradable characteristics in materials used in food industry. The quercetin bioactive attributes induced in the starch polymers exhibit incredible antioxidant, antimicrobial as well and mechanical and barrier properties. The free radical-scavenging activity offered by quercetin protects the packaged food from oxidative rancidity, while its antimicrobial properties help control foodborne pathogens, thereby extending the shelf life of perishable products. Furthermore, the quercetin films offer superior UV protection and moisture barrier qualities making them suitable for a wide range of applications, including active, intelligent, and edible packaging. Recent advancements, such as blending with various biopolymers like chitosan or gelatin and incorporating nanoparticles, have further enhanced the functionality of the packaging films. However, certain challenges such as low solubility of quercetin, thermal instability and its high production costs remains a great barrier in its industrial application. Therefore, there is a great need to focus on greener processing methods, nanocomposite integration including cost-effective production strategies to overcome these limitations. This paper highlights the potential of starch-quercetin matrices as a sustainable alternative to plastic packaging, addressing global environmental concerns while ensuring food safety and quality.