陕西科技大学学报2026，Vol.44Issue(3)：33-43,11.
肉桂精油纳米乳-羧甲基壳聚糖复合膜的制备及其在杏鲍菇保鲜中的应用
Preparation of cinnamon essential oil nanoemulsion-carboxymethyl chitosan composite film and its application in Pleurotus eryngii preservation
摘要
Abstract
To extend the shelf life of postharvest Pleurotus eryngii,this study developed a no-vel composite film using carboxymethyl chitosan incorporated with a lentinan-stabilized cin-namon essential oil nanoemulsion(CMCS/LNT-CEONE).The optimal preparation parame-ters were determined through single-factor experiments and response surface methodology,with the mechanical properties of the composite film as the key indicator.The structural characteristics of the film were analyzed using scanning electron microscopy(SEM),Fourier transform infrared spectroscopy(FTIR),and FT-IR diffraction(XRD).The results showed that the optimal preparation conditions were as follows:CMCS addition amount of 2.8 g,glycerol concentration of 36％,ultrasonic time of 30 min,ultrasonic power of 80％,and vol-ume ratio of CMCS solution to LNT-CEONE of 7∶3.SEM observations revealed a uniform internal structure and good compatibility among the components.FTIR spectroscopy analysis revealed characteristic absorption peaks at 1 621 cm-1 and 3 344 cm-1.XRD patterns indica-ted a reduction in diffraction peak intensity for the CMCS/LNT-CEONE film compared to pure CMCS film,suggesting a decrease in crystallinity.Antibacterial assays demonstrated that the CMCS/LNT-CEONE composite film exhibited significant antimicrobial activity.Preservation experiments confirmed that the CMCS/LNT-CEONE film effectively maintained the appearance,minimized weight loss,and delayed discoloration of Pleurotus eryngii.In con-clusion,the CMCS/LNT-CEONE composite film provides a theoretical basis and practical reference for preserving edible fungi and offers a foundation for developing novel postharvest preservation technologies.关键词
复合膜/肉桂精油纳米乳/羧甲基壳聚糖/响应面法/杏鲍菇保鲜Key words
composite films/cinnamon essential oil nanoemulsion/carboxymethyl chitosan(CMCS)/response surface methodology(RSM)/preserving Pleurotus eryngii分类
轻工纺织引用本文复制引用
夏飞,马丽军,王华,李小佳,何文,薛雅妮..肉桂精油纳米乳-羧甲基壳聚糖复合膜的制备及其在杏鲍菇保鲜中的应用[J].陕西科技大学学报,2026,44(3):33-43,11.基金项目
国家自然科学基金项目(31801513) （31801513）
陕西省西安市科技计划-农业技术研发项目(21NYYF0029) （21NYYF0029）
