酵母发泡制备废纸纤维/淀粉缓冲包装材料研究  

Preparation of Waste Paper Fiber/Starch Buffer Packaging Materials by Yeast Foaming

作　　者：伍倍霆 刘涛 单伟雄 詹涛 向红[1] WU Bei-ting;LIU Tao;SHAN Wei-xiong;ZHAN Tao;XIANG Hong(College of Food Science,South China Agricultural University,Guangzhou 510642,China;Guangzhou Zhi Jian General Equipment Manufacturing Co.,Ltd.,Guangzhou 510760,China)

机构地区：[1]华南农业大学食品学院,广东广州510642 [2]广州至简通用设备制造有限公司,广东广州510760

出　　处：《绿色包装》2024年第9期15-19,共5页Green Packaging

摘　　要：为缓解泡沫塑料带来的环境污染问题,开发出性能优良、易于制备和更为绿色环保的淀粉基发泡缓冲材料。以酵母为发泡剂,采用热压成型工艺制备废纸纤维/淀粉发泡包装材料,并探讨了影响酵母产气的代谢条件与酵母用量对材料缓冲性能、微观结构等影响。当葡萄糖浓度为3.0%、发泡温度为33℃、发泡3 h,酵母产气量较高、持气能力较好。FTIR显示,基体物质之间没有发生化学反应,酵母的主要成分和结构保持完整。当酵母菌用量为3.0 g时,试样综合性能最优,泡孔分布较均匀,结构较好。酵母用量对材料结构具有一定的调控作用,进而影响其力学性能等。In order to alleviate the environmental pollution caused by foam,a starch based foam buffer material with good performance,easy preparation and more green environmental protection has been developed.The paper fiber/starch foam packaging material was prepared by hot pressing process using yeast as foaming agent.The effects of metabolic conditions on yeast gas production and the amount of yeast on cushioning properties and microstructure of the material were discussed.When glucose concentration was 3.0%,foaming temperature was 33℃and foaming for 3h,yeast had higher gas production and better gas holding capacity.FTIR revealed that no chemical reactions took place between the substrate substances and that the main composition and structure of the yeast remained intact.When the yeast dosage was 3.0 g,the comprehensive performance of the sample was the best,the cell distribution was more uniform,and the structure was better.The amount of yeast has a certain regulation effect on the structure of the material,and then affects its mechanical properties.

关 键 词：淀粉基 植物纤维 发泡 酵母菌 热压成型 缓冲性能 

分 类 号：TB48[一般工业技术—包装工程]