食品科学 ›› 2002, Vol. 23 ›› Issue (10): 99-101.

• 包装贮运 • 上一篇    下一篇

超微淀粉在生物降解食品包装膜中的应用

 吴俊, 谢笔钧, 熊汉国, 黎力   

  1. 华中农业大学食品科技系,湖北茂达降解塑料有限公司
  • 出版日期:2002-10-15 发布日期:2011-12-31

The Application of Super-micronized Starch to Biodegradable Food Package Film

 WU  Jun, XIE  Bi-Jun, XIONG  Han-Guo, LI  Li   

  • Online:2002-10-15 Published:2011-12-31

摘要: 通过高速气流粉碎机和球磨的联合处理可制备超微淀粉。测定结果表明,超微淀粉的平均粒径为3.126μm,其结晶度由38.7%降至17.1%;经丙三醇增塑后,超微淀粉结晶度低达9.3%,其加工性能得到极大改善,可用于制备食品级生物降解包装膜。在保证良好的材料性能的前提下,降解膜中超微淀粉的质量分数可达55%,并且具有较好的耐水耐油及透气性能;土埋120d后,其生物降解率达67%,显示出优良的生物降解性。

关键词: 超微淀粉, 生物降解, 包装膜

Abstract: The super-micronized starch was prepared by High-speed Jet Mill associated with Ball Mill. The result shows that the efficient diameter of the super-micronized starch is 3.126μm and its crystallinity is reduced from 38.7 % to 17.1%. After plasticised by glycerol, its crystallinity becomes 9.3%. In this way, the mechanical property of starch is improved and it can be applied to food package film. The content of starch in the film reaches 55%, and the water resistance and oil durance of the film are excellent. Its biodegradable rate is 67% in the soil after 120 days.

Key words: Super-micronized Starch , Biodegradable , Package Film