期刊论文

Effect of chitosan/PE composite films on the quality of citrus fruits

中文

武汉轻工大学学报

2095-7386

2015

4

1-3,20

10.3969/j.issn.2095-7386.2015.04.001

湖北省教育厅科学技术研究计划重点项目（D20151703）； 武汉轻工大学校立科研项目（2013d13）；

本校为第一机构

研究在聚乙烯（PE）薄膜上涂覆壳聚糖溶液（浓度为1wt%）制得壳聚糖/PE复合薄膜。分别采用PE膜及壳聚糖/PE复合膜对冰糖橘进行包装处理,在室温下0—10 d存储期内,观察冰糖橘的物理和生理变化。结果发现,随着储藏期的延长,每组冰糖橘都出现不同程度的失水、腐烂及维生素C的损耗。与空白组相比,PE薄膜、壳聚糖/PE复合膜对冰糖橘有一定程度的保鲜效果。而且壳聚糖/PE复合膜组在储藏期内能够更好的减少冰糖橘的失重,延缓可溶性固形物和Vc的损耗,从而保持了冰糖橘的良好外观,保证了其商业价值。

Chitosan /PE composite film was prepared by coating chitosan (1wt%) on polyethylene ( PE) film.The physical and physiological changes of citrus packaged by PE films and chitosan /PE composite films were observed in the storage period of 10 days at room temperature .The results showed that the loss of sensory evaluation , water and Vc occurred in each groups of citrus fruits with the increase of the storage time .Compared to the control group , the PE film and chitosan /PE composite film group had a certain degree of fresh-keeping effect for citrus .Moreo-ver, the chitosan /PE composite film ca...