Kraftliner paper coated with cationic starch/glycerol and poly(vinyl alcohol) blends to generate water vapor and O2 barriers

IF 8.5 1区 农林科学 Q1 FOOD SCIENCE & TECHNOLOGY
Allan de Amorim dos Santos , Lays Camila Matos , Alisson Farley Soares Durães , Maressa Carvalho Mendonça , Marcelo Coelho dos Santos Muguet , Renato Augusto Pereira Damásio , Anand Ramesh Sanadi , Gustavo Henrique Denzin Tonoli
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引用次数: 0

Abstract

This work aimed to evaluate blend formulations with cationic starch/glycerol and poly(vinyl alcohol) for applications as a kraftliner paper coating. Blends of both polymers in 5 different proportions were tested in formulations. Uncoated kraftliner paper and double wet-and-dry paper were used as controls. The formulations were applied in two layers of 15.0 ± 0.5 g/m² on 86 ± 1 g/m² paper with a coating machine. Suspension characterization and the physical properties of the coated papers were evaluated, as well as the barrier to water, water vapor, oxygen, and oil/grease, scanning electron microscopy, and Fourier transform infrared spectroscopy following standard methods. The papers coated with cationic starch showed low water resistance. However, the blends formed with poly(vinyl alcohol) presented oxygen and water vapor barriers, reaching values lower than 10 cm³ (STP)/(m².day) and 586 ± 23 g/m².day, respectively. Combining materials can improve the barrier properties of coated papers to create biodegradable and renewable formulations, promoting sustainable packaging.
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来源期刊
Food Packaging and Shelf Life
Food Packaging and Shelf Life Agricultural and Biological Sciences-Food Science
CiteScore
14.00
自引率
8.80%
发文量
214
审稿时长
70 days
期刊介绍: Food packaging is crucial for preserving food integrity throughout the distribution chain. It safeguards against contamination by physical, chemical, and biological agents, ensuring the safety and quality of processed foods. The evolution of novel food packaging, including modified atmosphere and active packaging, has extended shelf life, enhancing convenience for consumers. Shelf life, the duration a perishable item remains suitable for sale, use, or consumption, is intricately linked with food packaging, emphasizing its role in maintaining product quality and safety.
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