EPE减振包装对蓝莓贮藏品质的影响
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“十三五”国家重点研发计划项目(2018YFD 0401304);国家自然科学基金面上项目(31772042);国家公益性行业(农业)科研专项(201303073)


Effects of EPE Vibration-damping Packaging on the Storage Quality of Blueberry
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    摘要:

    研究物流运输过程中发泡聚乙烯(EPE)减振包装对蓝莓果实品质的影响,为蓝莓物流运输及保鲜提供依据。对比研究EPE、气泡垫和发泡聚苯乙烯(EPS)3种减振材料的性质,发现EPE减振材料缓冲性能优于气泡垫和EPS,选用不同厚度(4,6,8 mm)的EPE材料对蓝莓进行减振贮藏研究。与对照组相比,在贮藏末期,8 mm EPE减振材料蓝莓腐烂率仅为17.2%,是对照组的0.51倍,可有效降低蓝莓果实腐烂率,蓝莓8 mm EPE材料处理组在贮藏末期失重率仅为对照组的39%,延缓了失重率的增长,可滴定酸和可溶性固形物随着贮藏时间延长逐渐减少,贮藏末期,8 mm EPE组TSS含量最高,为贮藏初期的75.4%,而对照组含量为贮藏初期的37.4%;8 mm EPE减振材料蓝莓组硬度变化延缓,对照组花色苷含量在贮藏14 d时含量最丰富,含量为1.96 mg/g,而EPE组在第28天时达到最高含量,依次为1.88,1.93,1.96 mg/g;对照组总酚含量在第7天达到峰值5.675 mg/g,EPE处理组在贮藏21 d时含量最高,其中8 mm EPE减振材料含量最高;在贮藏末期,各组MDA含量分别为17.5,12.3,11.5,10 μmol/L,EPE组含量低于对照组,8 mm EPE组含量最低,是对照组含量的57.1%,说明8 mm EPE减振材料能有效延缓蓝莓贮藏期间花色苷、总酚和丙二醛含量的降低,有助于蓝莓的贮藏保鲜。

    Abstract:

    The effect of EPE vibration-damping packaging on the quality of blueberry during logistics transportation was studied, and the basis was provided for the logistics transportation and preservation of blueberry. First, the properties of three types of vibration-damping materials: EPE, bubble cushion and polystyrene (EPS) were compared, finding that the cushioning performance of EPE damping material was better than bubble cushion and EPS. Therefore, EPE materials with different thicknesses (4, 6, 8 mm) were used to study the vibration storage of blueberries. Compared with the control group, at the end of storage, the blueberry decay rate of 8 mm EPE vibration-damping material was only 17.2%, which was 0.51 times that of the control group, which could effectively reduce the blueberry fruit decay rate. The weight loss rate of the blueberry 8 mm EPE material treatment group at the end of storage was only that of the control group 39%. It delayed the increase in weight loss rate, titratable acid and soluble solids gradually decreased with storage time. At the end of storage, the 8 mm EPE group had the highest TSS content, which was 75.4% of the initial storage period, while the control group content was 37.4% of the initial storage period. The hardness change of the blueberry group of 8 mm EPE vibration-damping material was delayed. The anthocyanin content of the control group was the most abundant when stored for 14 d, the content was 1.96 mg/g, while the EPE group reached the highest content on the 28th day, which was 1.88, 1.93, 1.96 mg/g. The total phenol content of the control group reached the peak value of 5.675 mg/g on the 7th day, and the EPE treatment group had the highest content after 21 days of storage, and the 8 mm EPE damping material content was the highest. At the end of storage, the contents of MDA in each group were 17.5, 12.3, 11.5 μmol/L and 10 μmol/L, respectively. The content of EPE group was lower than that of control group, while 8 mm EPE group had the lowest content, which was the lowest of control group 57.1%, indicating that 8 mm EPE damping material cuuld reduce the changes in anthocyanins, total phenols and malondialdehyde content with storage time, which was helpful for the subsequent storage and preservation of blueberries.

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孙文丽;郜海燕;韩延超;吴伟杰;陈杭君;房祥军;穆宏磊. EPE减振包装对蓝莓贮藏品质的影响[J].中国食品学报,2020,20(10):232-239

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  • 在线发布日期: 2020-11-11
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