PE-BW-SiO_(2)复合包装膜对草鱼保鲜效果的研究  

Preservation Effect of PE-BW-SiO_(2) Composite Packaging Film on Grass Carp

作　　者：李娟华 王红蕾 陈国健 高南 仲芸芸 肖乃玉[1] LI Juanhua;WANG Hongei;CHEN Guojian;GAO Nan;ZHONG Yunyun;XIAO Naiyu(College of Light Industry and Food Science,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,China;School of Light Chemical Engineering and Materials,Shunde Polytechnic,Guangdong Foshan 528399,China)

机构地区：[1]仲恺农业工程学院轻工食品学院,广州510225 [2]顺德职业技术学院轻化与材料学院,广东佛山528399

出　　处：《包装工程》2024年第9期34-44,共11页Packaging Engineering

基　　金：广州市基础与应用基础项目(SL2022A04J01852);校级创新项目(2021-KJZX026)。

摘　　要：目的开发一种具有优良理化性能,并能有效应用于草鱼保鲜的新型活性包装膜。方法采用聚乙烯为基膜材料,以蜂蜡和纳米SiO_(2)为活性成分,采用熔融共混和造粒吹膜工艺制备PE-BW-SiO_(2)复合包装膜。测定包装膜的力学性能、阻隔性能和疏水性能,并研究它在4℃贮藏条件下对草鱼的保鲜效果。结果通过添加BW-SiO_(2)活性成分,包装膜的力学性能、阻隔性能和疏水性能得到提高。其中,BW-SiO_(2)添加量(质量分数)为2%的包装膜的力学性能、阻隔性能等综合性能达到最佳水平。将不同包装膜包装的草鱼置于4℃下贮藏11 d,结果表明,与纯PE包装膜相比,添加BW-SiO_(2)功效因子的复合PE包装膜对草鱼的保鲜效果更好,能够减缓鱼肉的水分流失和脂质氧化反应,有效延缓鱼肉的腐败变质进程,从而延长鱼肉的贮藏期。结论PE-BW-SiO_(2)复合包装膜具有良好的理化性能和保鲜效果,它有效地阻隔了外界水分的渗透和氧气的进入,从而减缓了水分流失和脂质氧化反应,同时还能防止微生物的滋长。此包装膜有效延缓了草鱼的腐败变质进程,在4℃下贮藏时将草鱼的货架期延长至11 d。The work aims to develop a new type of active packaging film with excellent physicochemical properties for the preservation of grass carp.The PE-BW-SiO_(2) composite packaging film was produced by melt blending and granulation blown film process with polyethylene as the base film material,and beeswax and nano-SiO_(2) as the active ingredients.Meanwhile,the mechanical,barrier and hydrophobic properties of the film were determined and its freshness preservation effect on grass carp under 4℃storage conditions was investigated.The mechanical,barrier and hydrophobic properties of the packaging film were improved by the addition of BW-SiO_(2).Among them,the packaging film with 2%BW-SiO_(2) achieved the best mechanical,barrier,and other comprehensive properties.After the grass carp packed in different packaging films was stored at 4℃for 11 days,it was shown that compared with the pure PE packaging film,the composite PE packaging film with BW-SiO_(2) active ingredient had a better preservation effect on the grass carp,and it could reduce the water loss and lipid oxidation reaction of the fish,effectively slowing down the corruption and deterioration and prolonging the storage period.PE-BW-SiO_(2) composite packaging film has excellent physicochemical properties and a high capacity to preserve freshness.It effectively blocks external water and oxygen penetration,which slows down water loss and lipid oxidation reactions,thereby preventing microorganisms from growing.This packaging film can extend the shelf life of grass carp up to 11 days at 4℃by effectively slowing down the spoilage process.

关 键 词：草鱼 保鲜 蜂蜡 纳米SiO_(2) PE-BW-SiO_(2)复合包装膜 

分 类 号：TB484.3[一般工业技术—包装工程]