摘要
采用自组装法制备明胶-壳聚糖-肉桂精油天然涂膜液,以天然涂膜液的粒径及其对肉桂精油的包埋率为指标,在单因素试验的基础上,利用正交试验确定制备天然涂膜液的最佳工艺,并采用抑菌圈法研究该天然涂膜液的抑菌效果.结果表明,制备天然涂膜液的最佳工艺为明胶质量浓度6 mg/mL,壳聚糖质量浓度3 mg/mL,肉桂精油质量浓度3 mg/mL,乳化剂质量浓度3 mg/mL,并调节溶液pH值至4.5,转速800 r/min,搅拌时间30 min;在此工艺条件下,天然涂膜液的粒径为(236.54±18.32) nm,对肉桂精油的包埋率为(46.78±2.61)%;天然涂膜液处理组的抑菌效果均优于壳聚糖组和明胶-壳聚糖组,说明肉桂精油的添加可提高明胶-壳聚糖涂膜液的抑菌效果.
The gelatin-chitosan-cinnamon essential oil natural coating solution was prepared by the self-assembly method,and the particle size of the natural coating solution and its encapsulation rate of cinnamon essential oil were used as indicators.On the basis of single factor test,orthogonal test was used to determine the optimal process for preparing natural coating solution.The antibacterial effect of the natural coating solution by the antibacterial circle method was studied.The results showed that the optimal process for the preparation of gelatin-chitosan-cinnamon essential oil natural coating solution was gelatin mass concentration of 6 mg/mL,chitosan mass concentration of 3 mg/mL,cinnamon essential oil mass concentration of 3 mg/mL,emulsifier mass concentration of 3 mg/mL,adjusting the pH of the solution to 4.5,rotating speed of 800 r/min,stirring time of 30 min.The particle size of natural coating solution was(236.54±18.32) nm,and the encapsulation rate of cinnamon essential oil was(46.78±2.61) %.And the antibacterial effect of the natural coating solution treatment group was better than that of the chitosan and gelatin-chitosan groups.The addition of cinnamon essential oil could improve the inhibition effect of gelatin-chitosan coating solution.
作者
陈玉芹
李仲佰
姚敏
张芸
朱秋劲
杨清丹
CHEN Yuqin;LI Zhongbai;YAO Min;ZHANG Yun;ZHU Qiujin;YANG Qingdan(School of Liquor and Food Engineering,Guizhou University,Guiyang 550025,China;Pan Zhou Agricultural Bureau,Panzhou 561601,China;Guizhou Province Breeding Livestock and Poultry Germplasm Testing Center,Guiyang 550001,China;Guizhou Livestock and Poultry Genetic Resources Management Station,Guiyang 550001,China;Guizhou Yang Lao Nai Food Co.,Ltd.,Panzhou 561601,China)
出处
《轻工学报》
北大核心
2021年第4期9-17,共9页
Journal of Light Industry
基金
贵州省科技计划项目(黔科合支撑[2019]2374)
贵州省高层次创新型人才培养项目(黔科合平台人才[2017]5788)
贵州省生态特色肉制品科技创新人才团队项目(黔科合平台人才[2020]5004)
贵州省研究生科研基金项目(黔教合YJSCXJH[2020]077)。
关键词
明胶
壳聚糖
肉桂精油
天然涂膜液
抑菌效果
gelatin
chitosan
cinnamon essential oil
natural film coating
antibacterial effect
