Preparation of degradable modified atmosphere films by blending polybutylene glycol 2,5-furandicarboxylate - polytetrahydrofurandiol polyether esters with poly (butyleneadipate-co-terephthalate) and its application in strawberry preservation

IF 8.5 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY Food Packaging and Shelf Life Pub Date : 2025-01-01 DOI:10.1016/j.fpsl.2025.101446

Li Liu, Can He, Liang Zhu, Zhonghao Zhu, Kaijun Xiao

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引用次数: 0

Abstract

A block polyether esters (PBTF) with excellent toughness was synthesized in this study by polybutylene glycol 2,5-furandicarboxylate (PBF) as the hard segment and polytetrahydrofurandiol (PHTF) as the soft segment. The degradable and modified atmosphere films were developed by blending PBTF with poly (butyleneadipate-co- terephthalate) (PBAT). PBTF/PBAT film containing 3 % PBTF demonstrated outstanding mechanical properties and gas permeability. The tensile strength was increased by 17.21 % and the degradation properties of the film were improved. The CO₂/O₂ gas separation coefficient was found to be as high as 13.99 and the water vapour permeability was reduced to 3.54 × 10⁻¹³ g·cm/(cm²·s·Pa), a reduction of 22.75 %. These properties contributed to maintaining a favorable atmosphere inside the package (2.6 %-3.5 % CO₂ and 15.6 %-16.7 % O₂) and inhibited microbial growth and nutrient loss, extending the shelf life of strawberries to 18 days (8 ℃). This degradable PBTF/PBAT modified atmosphere film has significant potential for use in fruit and vegetable packaging.

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来源期刊

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.