壳聚糖/玉米醇溶蛋白-花色苷纳米颗粒复合膜的制备及其性能
Preparation and Characterization of Chitosan/Zein-Anthocyanin Nanoparticles Composite Film
李双健 1邸清茹 1龚敏慧 1李思媛 1周剑忠 1范琳琳1
作者信息
- 1. 江苏省农业科学院农产品加工研究所 南京 210014
- 折叠
摘要
目的:开发一种负载玉米醇溶蛋白-花色苷纳米颗粒(体积分数5％和10％)作为增强剂和功能剂的壳聚糖/玉米醇溶蛋白-花色苷纳米颗粒复合膜,并研究玉米醇溶蛋白-花色苷纳米颗粒对薄膜的物理化学性质和结构属性的影响.结果:扫描电子显微镜(SEM)和X射线衍射(XRD)分析表明,玉米醇溶蛋白-花色苷纳米颗粒呈球形,粒径约为193～487 nm,与薄膜基体具有良好的相容性,并填充了薄膜基体的空隙,显著提高了薄膜的力学性能,使断裂伸长率从14.55％增到42.86％,抗拉强度从13.26 MPa增到36.86 MPa.此外,薄膜的抗氧化性能显著提升,DPPH和ABTS自由基清除活性分别从31.82％和31.07％提高到84.05％和79.17％.结论:玉米醇溶蛋白-花色苷纳米颗粒不仅可以提高壳聚糖膜的力学性能,而且通过负载玉米醇溶蛋白-花色苷纳米颗粒增强了薄膜的抗氧化性.
Abstract
Objective:This study aimed to develop a chitosan/zein-anthocyanin nanoparticle composite film loaded with zein-anthocyanin nanoparticles(volume fraction 5％and 10％)as enhancers and functional agents.The effects of zein-anthocyanin nanoparticles on the physicochemical and structural properties of films were investigated.Results:Scanning electron microscopy(SEM)and X-ray diffraction(XRD)analysis showed that the nanoparticles,which were spherical in shape and had a particle size of about 193-487 nm,had good compatibility with the film matrix and filled the void spaces in the film matrix,significantly improving the mechanical properties,making the elongation at break from 14.55％to 42.86％,tensile strength increased from 13.26 MPa to 36.86 MPa.In addition,the antioxidant properties of the films were also significantly improved,with the radical scavenging activities of DPPH and ABTS increased from 31.82％and 31.07％to 84.05％and 79.17％,respectively.Conclusion:Zein-anthocyanin nanoparticles can not only improve the me-chanical properties of chitosan films,but also improve the antioxidant properties of the films by loading zein-anthocyanins nanoparticles.
关键词
纳米颗粒/花色苷/生物聚合膜/力学性能/抗氧化活性Key words
nanoparticles/anthocyanins/biological polymerization film/mechanical properties/oxidation resistance引用本文复制引用
基金项目
江苏省现代农业(河蟹)产业技术体系质量安全与加工创新团队项目(JATS[2023]406)
江苏省农业自主创新资金项目(CX222026)
江苏省重点研发计划重点项目(BE2020387)
出版年
2024
NETL
NSTL
万方数据