食品包装材料的生物降解研究：不同生物聚合物使用及土壤特性影响的评估

Biodegradation Study of Food Packaging Materials: Assessment of the Impact of the Use of Different Biopolymers and Soil Characteristics.

作者信息

de Souza Amanda Martinello Neres, Avila Luisa Bataglin, Contessa Camila Ramão, Valério Filho Alaor, de Rosa Gabriela Silveira, Moraes Caroline Costa

机构信息

Graduate Program in Science and Engineering of Materials, Federal University of Pampa, 1650 Maria Anunciação Gomes de Godoy Avenue, Bagé 96413-172, Brazil.

Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria 97105-900, Brazil.

出版信息

Polymers (Basel). 2024 Oct 20;16(20):2940. doi: 10.3390/polym16202940.

DOI:10.3390/polym16202940

PMID:39458768

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11511331/

Abstract

In this article, the relationship between the properties of different membranes (agar, chitosan, and agar + chitosan) and biodegradability in natural and sterilized soil was investigated. The membranes under investigation exhibited variations in the biodegradation process, a phenomenon closely linked to both the soil microbiota composition and their water affinity. Higher solubility in water and greater swelling tendencies correlated with shorter initiation times for the biodegradation process in soil. Overall, all tested membranes began biodegradation within 14 days, as assessed through thickness and morphological analysis parameters, demonstrating a superior degradation rate compared to low-density polyethylene films.

摘要

在本文中，研究了不同膜（琼脂、壳聚糖以及琼脂+壳聚糖）的性能与在天然土壤和灭菌土壤中的生物降解性之间的关系。所研究的膜在生物降解过程中表现出差异，这一现象与土壤微生物群组成及其亲水性密切相关。在水中较高的溶解度和更大的溶胀趋势与土壤中生物降解过程较短的起始时间相关。总体而言，通过厚度和形态分析参数评估，所有测试的膜在14天内开始生物降解，表明其降解速率优于低密度聚乙烯薄膜。