Effect of Chitosan Crosslinked with Citric Acid Coating on Kraft Paper for Food Packaging Applications

IF 1.1 4区材料科学 Q3 METALLURGY & METALLURGICAL ENGINEERING

Protection of Metals and Physical Chemistry of Surfaces Pub Date : 2024-12-03 DOI:10.1134/S2070205124701818

Pawinee Theamdee, Penpetch Pliantong

{"title":"Effect of Chitosan Crosslinked with Citric Acid Coating on Kraft Paper for Food Packaging Applications","authors":"Pawinee Theamdee,  Penpetch Pliantong","doi":"10.1134/S2070205124701818","DOIUrl":null,"url":null,"abstract":"Chitosan (CS) films were prepared by crosslinking them with citric acid (CA) at various concentrations (0, 0.1, 0.2, 0.3, 0.4, and 0.5 wt %, calculated based on the dry weight of CS). These films were prepared using the solution blending-casting method and then dried at 50°C for 15 h. The thickness, water activity (aw), and water vapor permeability (WVP) of these films were investigated. The thickness of the films ranged from 0.30 to 0.60 mm, while the aw of the films ranged from 0.48 to 0.55. Importantly, the properties of the films showed changes that correlated with the varying CA content, and Fourier transform infrared (FTIR) confirmed the crosslinking between CS and CA. Subsequently, kraft paper was coated with CS solution at different CA concentrations. Basis weight, water adsorption, oil resistance, puncture strength, and tear strength were measured. The results indicated that the properties of the CS films crosslinked with CA showed improvement when compared to the uncross-linked films. However, excessive CA addition in the films had negative effects due to the solidifying crystals of CA on the film surface. After 3 months, the degradation of the paper coating films reached 26.98%. The findings suggested that the kraft paper-coated chitosan crosslinked with 0.3 wt % CA exhibited the best overall properties. This study has the potential for application as a paper-coating film in the food industry.","PeriodicalId":745,"journal":{"name":"Protection of Metals and Physical Chemistry of Surfaces","volume":"60 3","pages":"430 - 437"},"PeriodicalIF":1.1000,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Protection of Metals and Physical Chemistry of Surfaces","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S2070205124701818","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}

引用次数: 0

Abstract

Chitosan (CS) films were prepared by crosslinking them with citric acid (CA) at various concentrations (0, 0.1, 0.2, 0.3, 0.4, and 0.5 wt %, calculated based on the dry weight of CS). These films were prepared using the solution blending-casting method and then dried at 50°C for 15 h. The thickness, water activity (a_w), and water vapor permeability (WVP) of these films were investigated. The thickness of the films ranged from 0.30 to 0.60 mm, while the a_w of the films ranged from 0.48 to 0.55. Importantly, the properties of the films showed changes that correlated with the varying CA content, and Fourier transform infrared (FTIR) confirmed the crosslinking between CS and CA. Subsequently, kraft paper was coated with CS solution at different CA concentrations. Basis weight, water adsorption, oil resistance, puncture strength, and tear strength were measured. The results indicated that the properties of the CS films crosslinked with CA showed improvement when compared to the uncross-linked films. However, excessive CA addition in the films had negative effects due to the solidifying crystals of CA on the film surface. After 3 months, the degradation of the paper coating films reached 26.98%. The findings suggested that the kraft paper-coated chitosan crosslinked with 0.3 wt % CA exhibited the best overall properties. This study has the potential for application as a paper-coating film in the food industry.

Abstract Image

查看原文本刊更多论文

壳聚糖与柠檬酸交联涂料对食品包装牛皮纸的影响

用不同浓度（0、0.1、0.2、0.3、0.4和0.5 wt %，根据CS的干重计算）的柠檬酸（CA）与壳聚糖（CS）交联制备壳聚糖（CS）薄膜。采用溶液混合-浇铸法制备膜，在50℃下干燥15 h，考察膜的厚度、水活度（aw）和水蒸气渗透性（WVP）。膜的厚度为0.30 ~ 0.60 mm，膜的曲率为0.48 ~ 0.55。重要的是，薄膜的性质随CA含量的变化而变化，傅里叶变换红外（FTIR）证实了CS和CA之间的交联。随后，将不同CA浓度的CS溶液涂在牛皮纸上。测定了基重、吸水性、耐油性、穿刺强度和撕裂强度。结果表明，与未交联的CS膜相比，与CA交联的CS膜的性能有所提高。然而，由于CA在膜表面的结晶固化，过量的CA加入会对膜产生负面影响。3个月后，纸张涂布膜的降解率达到26.98%。结果表明，以0.3 wt % CA交联的牛皮纸包覆壳聚糖综合性能最好。本研究具有在食品工业中作为纸张涂布膜的应用潜力。

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

Protection of Metals and Physical Chemistry of Surfaces 工程技术-冶金工程

CiteScore

1.90

自引率

18.20%

发文量

审稿时长

4-8 weeks

期刊介绍： Protection of Metals and Physical Chemistry of Surfaces is an international peer reviewed journal that publishes articles covering all aspects of the physical chemistry of materials and interfaces in various environments. The journal covers all related problems of modern physical chemistry and materials science, including: physicochemical processes at interfaces; adsorption phenomena; complexing from molecular and supramolecular structures at the interfaces to new substances, materials and coatings; nanoscale and nanostructured materials and coatings, composed and dispersed materials; physicochemical problems of corrosion, degradation and protection; investigation methods for surface and interface systems, processes, structures, materials and coatings. No principe restrictions exist related systems, types of processes, methods of control and study. The journal welcomes conceptual, theoretical, experimental, methodological, instrumental, environmental, and all other possible studies.