Esterification modified corn starch composite with chitosan and PVP for enhanced mechanical properties and antimicrobial freshness preservation of starch-based films

IF 4.5 3区工程技术 Q1 CHEMISTRY, APPLIED

Reactive & Functional Polymers Pub Date : 2024-06-17 DOI:10.1016/j.reactfunctpolym.2024.105991

Dequan Wei , Shenghua Lv , Jinru Liu , Jingjing Zuo , Yanlu Mu , Leipeng Liu , Tingxiang He , Qiao Zeng

{"title":"Esterification modified corn starch composite with chitosan and PVP for enhanced mechanical properties and antimicrobial freshness preservation of starch-based films","authors":"Dequan Wei , Shenghua Lv , Jinru Liu , Jingjing Zuo , Yanlu Mu , Leipeng Liu , Tingxiang He , Qiao Zeng","doi":"10.1016/j.reactfunctpolym.2024.105991","DOIUrl":null,"url":null,"abstract":"<div><p>Traditional plastic packaging films may bring convenience to people, but may also bring fossil energy shortage and pollution problems. Thus, it is of great research significance to use renewable resources to develop biodegradable green packaging materials instead of traditional petroleum-based film materials. In this study, aryl esterified starch was prepared by graft modification of corn starch using acryloyl esterification. Then ES/CS/PVP composite film materials were prepared by introducing chitosan and polyvinylpyrrolidone (PVP) from esterified starch. Chitosan and PVP were introduced to greatly improve the antimicrobial and mechanical properties of the composite film. And the chemical structure and microscopic morphology of ES/CS/PVP were characterised by FT-IR, XRD, SEM and XPS. The results showed that the ES/CS/PVP composite film had excellent tensile properties and good antimicrobial freshness preservation properties. The maximum tensile strength reached 51.69 MPa and the water vapour permeability was 4.76 × 10<sup>−5</sup> g/mm∙d. The results of antimicrobial freshness preservation experiments show that the composite film has excellent antimicrobial freshness preservation performance, enough to keep cherries with good freshness in 6 days.</p></div>","PeriodicalId":20916,"journal":{"name":"Reactive & Functional Polymers","volume":null,"pages":null},"PeriodicalIF":4.5000,"publicationDate":"2024-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Reactive & Functional Polymers","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1381514824001664","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

Traditional plastic packaging films may bring convenience to people, but may also bring fossil energy shortage and pollution problems. Thus, it is of great research significance to use renewable resources to develop biodegradable green packaging materials instead of traditional petroleum-based film materials. In this study, aryl esterified starch was prepared by graft modification of corn starch using acryloyl esterification. Then ES/CS/PVP composite film materials were prepared by introducing chitosan and polyvinylpyrrolidone (PVP) from esterified starch. Chitosan and PVP were introduced to greatly improve the antimicrobial and mechanical properties of the composite film. And the chemical structure and microscopic morphology of ES/CS/PVP were characterised by FT-IR, XRD, SEM and XPS. The results showed that the ES/CS/PVP composite film had excellent tensile properties and good antimicrobial freshness preservation properties. The maximum tensile strength reached 51.69 MPa and the water vapour permeability was 4.76 × 10⁻⁵ g/mm∙d. The results of antimicrobial freshness preservation experiments show that the composite film has excellent antimicrobial freshness preservation performance, enough to keep cherries with good freshness in 6 days.

Abstract Image

查看原文本刊更多论文

壳聚糖和 PVP 与玉米淀粉的酯化改性复合材料可提高淀粉基薄膜的机械性能和抗菌保鲜性能

传统的塑料包装薄膜在给人们带来方便的同时，也可能带来化石能源短缺和污染问题。因此，利用可再生资源开发可生物降解的绿色包装材料代替传统的石油基薄膜材料具有重要的研究意义。本研究采用丙烯酰酯化技术对玉米淀粉进行接枝改性，制备了芳基酯化淀粉。然后从酯化淀粉中引入壳聚糖和聚乙烯吡咯烷酮（PVP），制备出 ES/CS/PVP 复合薄膜材料。壳聚糖和 PVP 的引入大大提高了复合薄膜的抗菌性和机械性能。并通过 FT-IR、XRD、SEM 和 XPS 对 ES/CS/PVP 的化学结构和微观形貌进行了表征。结果表明，ES/CS/PVP 复合薄膜具有优异的拉伸性能和良好的抗菌保鲜性能。最大拉伸强度达到 51.69 MPa，水蒸气透过率为 4.76 × 10-5 g/mm∙d。抗菌保鲜实验结果表明，复合膜具有优异的抗菌保鲜性能，足以使樱桃在 6 天内保持良好的新鲜度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Reactive & Functional Polymers 工程技术-高分子科学

CiteScore

8.90

自引率

5.90%

发文量

259

审稿时长

27 days

期刊介绍： Reactive & Functional Polymers provides a forum to disseminate original ideas, concepts and developments in the science and technology of polymers with functional groups, which impart specific chemical reactivity or physical, chemical, structural, biological, and pharmacological functionality. The scope covers organic polymers, acting for instance as reagents, catalysts, templates, ion-exchangers, selective sorbents, chelating or antimicrobial agents, drug carriers, sensors, membranes, and hydrogels. This also includes reactive cross-linkable prepolymers and high-performance thermosetting polymers, natural or degradable polymers, conducting polymers, and porous polymers. Original research articles must contain thorough molecular and material characterization data on synthesis of the above polymers in combination with their applications. Applications include but are not limited to catalysis, water or effluent treatment, separations and recovery, electronics and information storage, energy conversion, encapsulation, or adhesion.