期刊论文

Anti-bacterial Activity and Rice Fresh-keeping Property of Litsea cubeba Essential Oil-based Polyethylene Film

中文

食品工业科技

1002-0306

2019

40

22

294-299

10.13386/j.issn1002-0306.2019.22.051

2018年湖南省大学生研究性学习与创新性实验计划项目 国家重点研发计划项目(2017YFD0600704)。

本校为第一机构

为研制具有抑菌活性的聚乙烯膜并探究其对大米储藏保鲜的性能,本文分别以山苍子油和山苍子油微胶囊为抑菌剂掺入聚乙烯基材中,利用挤出成型-吹塑成膜工艺制备了山苍子油基聚乙烯膜,考察膜的力学性能、表观形貌、抑菌活性及其应用于大米保鲜过程中对脂肪酸值和总酸值含量的影响.结果 表明,掺入2％的山苍子油和2％山苍子油微胶囊聚乙烯膜(2％ LCEO-M和2％ LCEO-CM)具有较好的力学性能和抗菌活性,其中2％ LCEO-M和2％LCEO-CM的抗拉强度分别为(23.72±1.94)和(20.27±1.78) MPa,断裂伸长率分别为(136.04％±2.59％)和(136.59％土3.26％),拉伸弹性模量分别为(107.99±2.77)和(120.42±2.89) MPa.2％ ...

To prepare antibacterial polyethylene film and explore its performance of rice storage preservation,the bacteriostatic agents of Litsea cubeba essential oil(LCEO)and its mircocapsules were mixed into the base material of polyethylene and LCEO-based polyethylene film were prepared,respectively,by using extrusion molding and blow molding film technology. Then the mechanical properties,apparent morphology,anti-bacterial activity and its application in rice preservation on the contents of fatty acid value and the total acid were researched. The res...