柠檬酸改性玉米淀粉涂布液用于增强食品包装纸阻隔性能的研究

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关键词：玉米淀粉；涂布纸；阻油；可生物降解；阻隔性能中图分类号：TS761.7 文献标识码：A DOI：10.11980/j.issn.0254-508X.2026.04.002

Study on Citric Acid-modified Corn Starch Coating Solution for Enhancing the Barrier Properties ofFood Packaging Paper

XU Jin QIAN XuerenWANG Lijuan* （KeyLabofBibasedMaterialsScienceandTechnologyofMinistryofEducation，NortheastForestryUnversity，Hrbin HeilongjiangProvince，） （*E-mail： donglinwlj@163.com）

Abstract：Inthisudytheostarc-citricacidfapreparedsingcitricacid-modifdostarh，hichasthusdtorouce theoil-barrierfoodpckagingpaperTefectofitriccidonentoncoatingpforanceasivestigatdtodeteineteoufo mulationfthecoating，andtheimpactofcoatingamountontepropertisofthecoatedpaperasalsoeamined.Tersultssowedthat the water vapor and oxygen transmission coefficient of the corn starch-citric acid film containing 7% citric acid decreased to minimum values of 8.76×10-11 g/（s⋅m⋅Pa） and 2.38×102cm3⋅mm/（m2⋅d⋅atm）， ，respectively，with a water contact angle of 99.5°.Under this coating formulationsteotedoedtfddl sistance improved with the oil resistance rating of 7 when the coating amount was （3.11±0.11）g/m2 . When buried in moist soil，the coated papercompletelydegradedwithin10days，withadegradationratefarexcedingthatofexistingcommercialpackagingpapers.Whenusedfor bread packaging，it effectivelydelayed theoxidation offats in the bread.

Key words： corn starch;coated paper;oil resistance;biodegradation;barrier properties

包装在延长食品保质期方面发挥着关键作用2]。（剩余17335字）