文章摘要
郑家辉,杨梅,祖煦,王硕,张利君.羧甲基壳聚糖/壳聚糖涂膜保鲜千禧果[J].包装工程,2022,43(11):107-114.
ZHENG Jia-hui,YANG Mei,ZU Xu,WANG Shuo,ZHANG Li-jun.Effect of Carboxymethyl Chitosan/Chitosan Layer by Layer Self-assembly Coating on Preservation of Millennium Fruit[J].Packaging Engineering,2022,43(11):107-114.
羧甲基壳聚糖/壳聚糖涂膜保鲜千禧果
Effect of Carboxymethyl Chitosan/Chitosan Layer by Layer Self-assembly Coating on Preservation of Millennium Fruit
  
DOI:10.19554/j.cnki.1001-3563.2022.11.014
中文关键词: 壳聚糖  羧甲基壳聚糖  层层自组装  千禧果  保鲜包装
英文关键词: chitosan  carboxymethyl chitosan  layer-by-layer self-assembly  millennium fruits  preservation packaging
基金项目:安徽省自然科学基金青年基金(1908085QB89);国家级大学生创新训练项目(202010364015)
作者单位
郑家辉 安徽农业大学 轻纺工程与艺术学院合肥 230036 
杨梅 安徽农业大学 轻纺工程与艺术学院合肥 230036 
祖煦 安徽农业大学 轻纺工程与艺术学院合肥 230036 
王硕 安徽农业大学 轻纺工程与艺术学院合肥 230036 
张利君 安徽农业大学 轻纺工程与艺术学院合肥 230036 
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中文摘要:
      目的 对千禧果进行涂膜包装,从而延长其常温贮藏的货架期。方法 采用壳聚糖(Chitosan, CS)和羧甲基壳聚糖(Carboxymethyl Chitosan,CMCS)为基材,利用层层自组装(Layer-by-layer Self-assembly,LBL)的方法对千禧果进行涂膜保鲜包装,研究CS与CMCS之间的作用力类型,以及涂膜处理对千禧果的保鲜效果。结果 通过红外分析可知,CS与CMCS之间依靠氢键作用和静电力相互连接;通过实验确定CMCS/CS层层自组装双层涂膜对千禧果的保鲜效果相对最佳,在室温下能将千禧果的保鲜期延长至9 d,贮藏9 d后千禧果的质量损失率、腐烂率、硬度、可溶性固形物质量分数、维生素C含量及有机酸含量分别为3.3%、6.7%、5.3 kg/cm2、7.7%、29.3 mg/hg和0.48%。结论 CS和CMCS层层自组装多层涂膜对千禧果具有明显的保鲜效果,能有效延长其货 架期。
英文摘要:
      In order to prolong the shelf life of millennial fruits at room temperature, chitosan (CS) and carboxymethyl chitosan (CMCS) are coated on millennial fruits by layer-by-layer self-assembly (LBL) technology. The types of force between CS and CMCS as well as the preservation effects on millennial fruits are studied. The FTIR results show that there are hydrogen bonding and electrostatic force between CS and CMCS. The CMCS/CS LBL double-layer coating film has the best fresh-keeping effects which can extend the shelf life of millennial fruits at room temperature to 9 days. The weight loss rate, decay rate, firmness, total soluble solid, Vc and organic acid content for millennial fruits after 9 days is 3.3%, 6.7%, 5.3 kg/cm2, 7.7%, 29.3 mg/hg and 0.48% respectively. The LBL multilayer coating films of CS and CMCS can effectively inhibit the transpiration and respiration strength of millennial fruits, thereby prolonging their shelf life.
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