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首页> 外文期刊>International Journal of Biological Macromolecules: Structure, Function and Interactions >A pH-indicating intelligent packaging composed of chitosan-purple potato extractions strength by surface-deacetylated chitin nanofibers
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A pH-indicating intelligent packaging composed of chitosan-purple potato extractions strength by surface-deacetylated chitin nanofibers

机译:通过表面脱乙酰化丁蛋白纳米纤维,由壳聚糖紫色马铃薯提取强度组成的pH指示智能包装

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摘要

The goal of the study is to develop a novel pH-indicating intelligent packaging by using purple potato extractions (PPE), chitosan and surface-deacetylated chitin nanofibers (CN). Since the major pH-sensitive pigment of PPE was anthocyanin (24.3 mg/g), whether anthocyanins could be loaded on a solid phase to prevent its color fading was further tested. The results of Fourier transform infrared spectrophotometry (FT-IR) and differential scanning calorimetry (DSC) indicated that PPE was efficiently attached into the chitosan film. Meanwhile, adding CN (0.450%, w/v) into chitosan film could significantly enhance the tensile strength (TS), the water-resistant ability and the roughness of chitosan film. Whereas higher content of CN (0.600%, w/v) did not further improve mechanical properties and CN would distribute unevenly due to aggregation in the films. In addition to pH-indicating ability, CS-CN-PPE exhibited the extraordinary antioxidant activities and this provides another advantage of packaging readily oxidizable substances. Taken together, the current study provided a novel and biocompatible packaging with strengthened mechanical property and intelligent pH indicator. (C) 2019 Published by Elsevier B.V.
机译:该研究的目标是通过使用紫色马铃薯萃取(PPE),壳聚糖和表面脱乙酰化丁蛋白纳米纤维(CN)开发一种新型pH指示智能包装。由于PPE的主要pH敏感颜料是花青素(24.3mg / g),所以可以在固相上装载花青素以防止其颜色衰落进一步测试。傅里叶变换红外分光光度法(FT-IR)和差示扫描量热法(DSC)的结果表明PPE有效地连接到壳聚糖膜中。同时,将CN(0.450%,W / V)加入壳聚糖膜中可以显着提高壳聚糖膜的拉伸强度(TS),耐水性能力和粗糙度。然而,较高的CN含量(0.600%,W / V)没有进一步改善机械性能,CN由于薄膜的聚集而不均匀地分布。除了pH指示能力外,CS-CN-PPE还表现出非凡的抗氧化活性,这提供了易于氧化物质的另一个优点。在一起,目前的研究提供了一种新颖和生物相容性的包装,具有加强的机械性能和智能pH指示。 (c)2019年由elestvier b.v发布。

著录项

  • 来源
  • 作者单位

    Zhejiang Univ Natl Engn Lab Intelligent Food Technol &

    Equipmen Key Lab Agroprod Postharvest Handling Minist Agr Coll Biosyst Engn &

    Food Sci Fuli Inst Food Sci K Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Natl Engn Lab Intelligent Food Technol &

    Equipmen Key Lab Agroprod Postharvest Handling Minist Agr Coll Biosyst Engn &

    Food Sci Fuli Inst Food Sci K Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Natl Engn Lab Intelligent Food Technol &

    Equipmen Key Lab Agroprod Postharvest Handling Minist Agr Coll Biosyst Engn &

    Food Sci Fuli Inst Food Sci K Hangzhou 310058 Zhejiang Peoples R China;

    Zhejiang Univ Natl Engn Lab Intelligent Food Technol &

    Equipmen Key Lab Agroprod Postharvest Handling Minist Agr Coll Biosyst Engn &

    Food Sci Fuli Inst Food Sci K Hangzhou 310058 Zhejiang Peoples R China;

    Iwate Univ Fac Agr Dept Food Prod &

    Environm Management Morioka Iwate 0208550 Japan;

    Fujian Agr &

    Forestry Univ Coll Food Sci Fuzhou 350002 Peoples R China;

    Zhejiang Univ Natl Engn Lab Intelligent Food Technol &

    Equipmen Key Lab Agroprod Postharvest Handling Minist Agr Coll Biosyst Engn &

    Food Sci Fuli Inst Food Sci K Hangzhou 310058 Zhejiang Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 生物大分子的结构和功能;
  • 关键词

    pH-indicator; Mechanical properties; Surface-deacetylated chitin nanofibers;

    机译:pH指示剂;机械性能;表面脱乙酰基蛋白纳米纤维;

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