A comprehensive review of green smart packaging advances published between 2020 and 2025 demonstrates that pairing biodegradable polymers with integrated sensors can significantly improve food preservation while enabling real-time freshness tracking. The review, published in Discover Food, synthesizes recent peer-reviewed literature gathered from major scientific repositories to evaluate emerging technologies designed to replace conventional fossil-fuel-based packaging. Across the reviewed experimental studies, researchers documented shelf-life extensions extending from several days to more than six weeks, alongside reductions in microbial populations of up to 3 to 4 log cycles. By examining both plant-derived and animal-derived matrices functionalized with active and intelligent agents, the authors positioned these integrated materials as a foundational technological pillar for transitioning toward Industry 5.0 in global food systems.
The authors framed their synthesis around critical structural vulnerabilities currently facing global food systems, specifically food safety, postharvest losses, and environmental sustainability. These persistent challenges are exacerbated by ongoing rapid human population growth and increasingly complex distribution supply chains. At the same time, conventional fossil-fuel-derived packaging remains the dominant global standard across retail and industrial food operations. The authors highlighted that this widespread reliance on traditional synthetic plastics imposes massive ecological burdens, contributing substantially to global greenhouse gas emissions and widespread microplastic contamination. In response to these converging environmental and logistical pressures, the review emphasizes that ensuring safe, surplus, and sustainable food requires viable, accessible, and innovative material solutions capable of mitigating food waste and packaging pollution simultaneously.
A primary rationale for conducting the review was to address fragmentation within the existing scientific literature, which has predominantly examined packaging technologies in isolation by focusing separately on individual polymer types, specific food matrices, or discrete sensor mechanisms. To bridge this divide, the authors conducted a categorical evaluation of sustainable base materials, beginning with plant-based biopolymers. Their analysis systematically evaluated the efficacy of five major plant-derived polymers: cellulose, alginate, starch, pectin, and carrageenan.
Alongside plant matrices, the authors categorically examined animal-derived materials, evaluating the functional efficacy of chitosan, gelatin, and whey proteins within sustainable packaging architectures.
Across the evaluated combinations of biopolymers and functional additives, the reviewed literature reported substantial performance enhancements compared to unmodified or conventional packaging materials. Mechanically, the composite formulations exhibited marked improvements in mechanical strength and physical barrier properties against environmental factors.
Beyond compiling experimental outcomes, the review articulated a comprehensive conceptual framework that unites bio-based biodegradable materials, intelligent sensing functions, and the core principles of Industry 5.0. The authors argued that this integrated approach bridges longstanding gaps between scientific laboratory discoveries and practical industrial adoption. Ultimately, the synthesis positioned sensor-embedded biodegradable packaging as a vital technological catalyst for advancing multiple United Nations Sustainable Development Goals. Specifically, the authors linked these smart green packaging innovations to SDG 2 (Zero Hunger) through the reduction of postharvest food loss, SDG 12 (Responsible Consumption and Production) through circular and sustainable material sourcing, and SDG 13 (Climate Action) by curtailing fossil-fuel dependency and greenhouse gas emissions across the food supply chain.
Subject of Research: Green smart food packaging technologies and biopolymer sensing systems
Article Title: Smart green packaging solutions for safe and sustainable food systems
Article References: Akitoye, A. A., Julius, O. P., Ayegbusi, T. B., Sholagbade, T. I., Aremu, A. O., Adams, L. A., & Swanepoel, F. (2026). Smart green packaging solutions for safe and sustainable food systems. Discover Food. https://doi.org/10.1007/s44187-026-01272-6
Image Credits: AI Generated
DOI: 10.1007/s44187-026-01272-6
Keywords: smart packaging, green packaging, biopolymers, food safety, shelf life, Industry 5.0, freshness sensors, sustainable food systems, Smart, green, packaging, solutions