Evaluation and effect of rice bran and microwave heating on the physicomechanical properties of low-density polyethylene film and packaged milk quality

IF 1.2 4区农林科学 Q4 FOOD SCIENCE & TECHNOLOGY

Czech Journal of Food Sciences Pub Date : 2022-03-28 DOI:10.17221/238/2020-cjfs

Vikendra Dabash, I. Burešová, U. Grupa

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Abstract

Low-density polyethylene (LDPE) film was developed with a mixture of reference LDPE and rice bran (RB). Three mixtures of 5, 10, and 15% RB were used for the LDPE film preparation. The films were analysed for the physico-mechanical properties before microwave heating (MH) and after MH and packaged milk quality was analysed regarding MH and pasteurisation. After MH, the physicomechanical properties of the material change significantly. LDPE film containing 15% RB was created to beat changes in tensile strength, elongation at break, bursting strength, and water vapour transmission rate (WVTR). The total migration of tested packaging materials was within the agreeable limit and after MH it also was within the permissible limit. Four different simulators were used to create food categories. These food simulators included distilled water, 3% acetic acid, 50% alcohol (ethanol), and n-heptane. The obtained results display that the total migration of food packages is dependent on the MH period, package material, and the simulator.

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米糠与微波加热对低密度聚乙烯薄膜物理力学性能及包装奶品质的影响及评价

以基准低密度聚乙烯(LDPE)和米糠(RB)为原料制备了低密度聚乙烯(LDPE)薄膜。采用5%、10%和15% RB的三种混合物制备LDPE薄膜。分析了微波加热前后膜的物理力学性能，分析了微波加热和巴氏灭菌对包装奶质量的影响。MH后，材料的物理力学性能发生了显著变化。制备了含15% RB的LDPE薄膜，以测量拉伸强度、断裂伸长率、破裂强度和水蒸气透过率(WVTR)的变化。被测包装材料的总迁移量在可接受的限度内，MH后也在允许的限度内。四种不同的模拟器被用来创建食物类别。这些食物模拟器包括蒸馏水，3%醋酸，50%酒精(乙醇)和正庚烷。结果表明，食品包装的总迁移量与MH周期、包装材料和模拟器有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Czech Journal of Food Sciences Food Science & Technology, Chemistry-食品科技

CiteScore

2.60

自引率

0.00%

发文量

审稿时长

7 months

期刊介绍： Original research, critical review articles, and short communications dealing with food technology and processing (including food biochemistry, mikrobiology, analyse, engineering, nutrition and economy). Papers are published in English.