响应面法优化山楂果胶复合保鲜膜的制备工艺  

Optimization of the preparation process of hawthorn pectin composite fresh-keeping film by response surface methodology

作　　者：付美玲 李丹丹[1] 李莹 修建华 王金华 FU Meiling;LI Dandan;LI Ying;XIU Jianhua;WANG Jinhua(College of Food and Biology,Hebei University of Science and Technology,Shijiazhuang 050000;Hebei Hawthorn Processing Technology Innovation Center,Chengde 067300)

机构地区：[1]河北科技大学食品与生物学院,石家庄050000 [2]河北省山楂加工技术创新中心,承德067300

出　　处：《中国食品添加剂》2023年第4期45-51,共7页China Food Additives

摘　　要：以山楂果胶和聚乙烯醇为原料,甘油为增塑剂,制备山楂果胶复合保鲜膜。单因素实验研究了果胶浓度、果胶温度、果胶与PVA体积比对山楂果胶复合保鲜膜透光度的影响,在单因素实验基础上,采用响应面法优化了山楂果胶复合膜制备的工艺条件,同时测定最优条件下制备的山楂果胶复合保鲜膜的透光度、水蒸气透过率、透油率和弹性。结果表明,山楂果胶复合保鲜膜的最佳工艺为果胶浓度1.10%,温度90℃,果胶与聚乙烯醇的配比1∶2。在此最优工艺条件下,制备的山楂果胶复合保鲜膜透光度为76.31%,水蒸气透过率为25.48 g/(cm2·24 h),透油率为2.83%,弹性为24.19 g。综上,山楂果胶复合保鲜膜符合当前食品包装材料的要求,有潜在的应用前景。Hawthorn pectin and polyvinyl alcohol were used as raw materials and glycerol as plasticizer to prepare hawthorn pectin composite fresh-keeping film.The effects of pectin concentration,pectin temperature,and volume ratio of pectin to PVA on the light transmittance of the hawthorn pectin composite preservative film were studied by single factor experiments.Based on the single factor experiment,the response surface method was used to optimize the hawthorn pectin composite film preparation conditions.The process conditions of the preparation were determined,and the light transmittance,water vapor transmission rate,oil permeability and elasticity of the hawthorn pectin composite fresh-keeping film prepared under the optimal conditions were measured.The results showed that the optimum process conditions of hawthorn pectin composite fresh-keeping film were as the following:pectin concentration of 1.10%,temperature of 90℃,and the ratio of pectin to polyvinyl alcohol was 1∶2.Under the optimal process conditions,the prepared hawthorn pectin composite fresh-keeping film had a light transmittance of 76.31%,a water vapor transmission rate of 25.48 g/(cm2·24 h),an oil permeability of 2.83%,and an elasticity of 24.19 g.In conclusion,the hawthorn pectin composite fresh-keeping film meets the requirements of current food packaging materials and has potential application prospects.

关 键 词：山楂果胶 聚乙烯醇 保鲜膜 制备 工艺研究 

分 类 号：TS202.3[轻工技术与工程—食品科学] TS205.9[轻工技术与工程—食品科学与工程]