Pulsed light as a strategy for structural and functional modulation of starch-based biodegradable films

• Grant number: 25/10856-7
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2025
• End date: October 31, 2026
• Field of knowledge: Agronomical Sciences - Food Science and Technology - Food Technology
• Principal Investigator: Luís Marangoni Júnior
• Grantee: Luís Marangoni Júnior
• Host Institution: Faculdade de Engenharia de Alimentos (FEA). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• City of the host institution: Campinas
• Associated research grant: 24/07555-2 - High-intensity pulsed light: photo-crosslinking of biopolymers, packaging and food stability, AP.JP
• Associated scholarship(s): 25/24875-3 - Modulation of the physical and chemical properties of starch films by high-intensity pulsed light, BP.IC; 25/25037-1 - Development of starch films with antimicrobial activity induced by high-intensity pulsed light., BP.IC

Abstract

This project aims to investigate the effects of high-intensity pulsed light, a non-thermal technology capable of inducing reactive oxygen species, on the modification of starch films, with the goal of enhancing their physicochemical, mechanical, barrier, and antimicrobial properties. In light of the increasing demand for biodegradable and sustainable materials, especially for food packaging, the study seeks to explore the potential of pulsed light to promote molecular reorganizations, cross-linking formation, and improvements in the films' strength and permeability without the need for conventional antimicrobial agents. Additionally, the project intends to evaluate the antimicrobial efficacy against model microorganisms, the longevity of the effect over time, and the surface chemical changes induced by the treatment. Overall, this research contributes to the development of innovative, sustainable packaging solutions that ensure greater food safety and preservation, fostering scientific advancements and environmental and public health benefits. (AU)