壳聚糖-生姜精油复合膜的优化制备  

Optimized Preparation of Chitosan-Ginger Essential Oil Composite Films

作　　者：钟婷 普涵 茹素梅 何静思 杨晨丽 唐森 Zhong Ting;Pu Han;Ru Sumei;He Jingsi;Yang Chenli;Tang Sen(School of Food and Biochemical Engineering,Guangxi Science&Technology Normal University,Laibin 546199,China;Guangxi Sugar Resources Engineering Technology Research Center,Guangxi Science&Technology Normal University,Laibin 546199,China)

机构地区：[1]广西科技师范学院食品与生化工程学院,广西来宾546199 [2]广西科技师范学院广西糖资源工程技术研究中心,广西来宾546199

出　　处：《山东化工》2022年第23期46-50,共5页Shandong Chemical Industry

基　　金：广西自然科学基金资助(任务书编号:2022GXNSFBA035579);来宾市科学研究与技术开发计划项目(来科转211902);广西科技师范学院大学生创新创业训练计划项目(202011546082)。

摘　　要：以壳聚糖为复合膜成膜基质,加不同量的生姜精油,以氯化钙为交联剂,甘油为增塑剂,明胶为乳化剂制备复合膜。以厚度、机械性能、不透明度、水蒸气透过系数为考察指标,通过单因素试验找出各个考察因素的优化范围,通过正交试验得到复合膜制备的最佳工艺条件。结果表明,最佳成膜工艺条件为:生姜精油取0.4 mL,甘油取1.5 g,氯化钙取0.3 g,明胶取1.5 g。该工艺条件下制得的复合膜具有厚度较薄,拉伸强度和断裂伸长率较高,不透明度和水蒸气透过系数较低的特点。In this paper,chitosan was used as composite membrane forming matrix,adding different amounts of ginger essential oil,calcium chloride as crosslinking agent,glycerin as plasticizer,gelatin as emulsifier,using physical blending and flow casting method to prepare composite films.The thickness,mechanical properties,opacity and water vapor transmission coefficient were taken as the indexes.The optimum range of each factor was found through single factor test,and the optimum technological conditions were obtained through orthogonal test.The results showed that the optimal membrane forming conditions were ginger essential oil 0.4 mL,glycerin 1.5 g,calcium chloride 0.3 g,gelatin 1.5 g.The composite film prepared by this process has the characteristics of thinner thickness,higher tensile strength and elongation at break,lower opacity and water vapor transmission coefficient.

关 键 词：壳聚糖 生姜精油 复合膜 最佳配比 正交试验 

分 类 号：TQ320.72[化学工程—合成树脂塑料工业]