摘要
为制备出机械性能和疏水性能良好的壳聚糖/玉米醇溶蛋白复合膜,采用单因素试验分析不同壳聚糖添加量、甘油添加量以及铺膜液体积对复合膜性能的影响,根据响应面优化结果,确定最佳复合膜制备工艺,结果表明,在玉米醇溶蛋白和壳聚糖的复配比(质量比)1∶4、甘油添加量0.25%、铺膜液体积25 mL的条件下制备的复合膜性能最佳,其拉伸强度达到9.99 MPa,延伸率为19.33%,复合膜表面接触角为86.17°。文章为复合膜在果蔬保鲜中的应用提供了一定的理论基础。
In order to prepare chitosan/zein composite membrane with good mechanical properties and hydrophobic properties,single factor test is used to analyze the effects of different chitosan addition amount,glycerin addition amount and membrane spreading solution volume on the properties of composite membrane.According to response surface optimization results,the optimal preparation process of composite membrane is determined.The results show that under the conditions of the compound ratio(mass ratio)of zein to chitosan of 1∶4,glycerin addition amount of 0.25%,and the membrane spreading solution volume of 25 mL,the prepared composite membrane has the best properties,with tensile strength of 9.99 MPa,elongation of 19.33%,and composite membrane surface contact angle of 86.17°.This paper provides certain theoretical basis for the application of composite membrane in the preservation of fruits and vegetables.
作者
赵珺
何珊
李俊博
汤琦龙
刘通
ZHAO Jun;HE Shan;LI Jun-bo;TANG Qi-long;LIU Tong(School of Food Science and Engineering,Changchun University,Changchun 130022,China)
出处
《中国调味品》
CAS
北大核心
2023年第1期53-57,63,共6页
China Condiment
基金
吉林省教育厅科学技术研究项目(JJKH20210618KJ)
吉林省科技厅科技计划项目(20210203135SF)。
