Filmes nanocelulósicos à base de isolado proteico de soja para aplicação em embalagens - uma revisão

Abstract

This study aims to present an updated literature review on the use of nanocellulose as a reinforcing agent in biodegradable films based on soy protein isolate (SPI), focusing on its application in sustainable packaging development. The growing concern over the environmental impact caused by the disposal of conventional plastics has driven research into more eco-friendly alternatives, such as biopolymers. Although SPI shows promise, it has mechanical and moisture resistance limitations, which justify the incorporation of nanocellulose as a performance-enhancing strategy. Based on the analysis of articles published between 2015 and 2025, this review identifies different methods for producing and processing these films, as well as the effects of nanocellulose addition on the structural, mechanical, functional, and barrier properties of the resulting materials. The findings demonstrate that nanocellulose significantly improves mechanical strength, thermal stability, barrier performance, and biodegradability of the films, making them viable alternatives to fossil-based plastics in food packaging.The study also highlights the alignment of the topic with the Sustainable Development Goals, particularly SDG 12 (Responsible Consumption and Production).