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Effect of nanocomposite-based packaging on preservation quality of green tea

机译:纳米复合包装对绿茶保鲜质量的影响

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摘要

An improved nanocomposite-based packaging material (NCP) was prepared by blending polyethylene with nano-Ag, nano-TiO_2 and attapulgite. And its effect on preservation quality of green tea (Biluochun and Qingfeng) during one-year ambient storage was investigated. The results showed that adding nanoparticles to the polyethylene could significantly improve the barrier property. After one-year ambient storage, the moisture of Biluochun and Qingfeng with NCP was decreased by 10.3% and 6.1% compared with the normal packaging material. Meanwhile, the contents of amino acid, tea polyphenols, chlorophyll and ascorbic acid were increased by 22.8%, 9.4%, 30.4% and 9.5% for Biluochun and 19.2%, 9.3%, 27.3% and 21.6% for Qingfeng, respectively, compared with the normal packaging material. Moreover, the sensory quality of NCP was also superior to that with the control. Therefore, the improved NCP material probably provides an attractive alternative to maintain the preservation quality of green tea at a high level during storage.
机译:通过将聚乙烯与纳米Ag,纳米TiO_2和凹凸棒石共混,制备了一种改进的纳米复合材料包装材料(NCP)。并研究了其对环境保存一年中绿茶(碧螺春和庆丰)保存质量的影响。结果表明,将纳米颗粒添加到聚乙烯中可以显着改善阻隔性能。与普通包装材料相比,经过一年的环境保存,碧螺春和庆丰采用NCP的水分分别降低了10.3%和6.1%。同时,碧螺春的氨基酸,茶多酚,叶绿素和抗坏血酸的含量分别比清丰分别增长了22.8%,9.4%,30.4%和9.5%,清丰分别为19.2%,9.3%,27.3%和21.6%。正常的包装材料。此外,NCP的感官质量也优于对照组。因此,改进的NCP材料可能提供了一种有吸引力的替代方法,以在储存期间将绿茶的保存质量维持在较高水平。

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  • 作者单位

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China;

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China;

    Department of Food Quality and Safety, China Pharmaceutical University, Tongjiaxiang, Nanjing 210009, China;

    College of Food Science and Engineering, Nanjing University of Finance and Economics, Xianlin, Nanjing 210046, China;

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China;

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China;

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China;

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China;

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China;

    College of Food Science and Technology, Nanjing Agricultural University, Weigang, Nanjing 210095, China,College of Food Science and Engineering, Nanjing University of Finance and Economics, Xianlin, Nanjing 210046, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    green tea; nanocomposite-based packaging; preservation quality;

    机译:绿茶;纳米复合材料包装;保存质量;

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