食品与发酵工业 >

2022 , Vol. 48 >Issue 17: 207 - 213

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.028558

研究报告

二醛基纤维素/羧甲基纤维素复合薄膜的制备及在鸡蛋保鲜中的应用

  • 田玥 ,
  • 徐昊洋 ,
  • 康晓鸥 ,
  • 赵敏孜 ,
  • 阮长晴
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  • 1(西南大学 食品科学学院,重庆,400715)
    2(西南大学食品贮藏与物流研究中心,重庆,400715)
第一作者:本科生(阮长晴副教授为通信作者,E-mail:changqing.r@hotmail.com)

收稿日期: 2021-07-09

  修回日期: 2021-09-18

  网络出版日期: 2022-10-01

基金资助

国家自然科学青年基金项目(32001752);川菜发展研究中心科研项目(CC21Z04)

收起

Preparation of dialdehyde cellulose/carboxymethyl cellulose composite film and its application in egg preservation

  • TIAN Yue ,
  • XU Haoyang ,
  • KANG Xiaoou ,
  • ZHAO Minzi ,
  • RUAN Changqing
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  • 1(College of Food Science, Southwest University, Chongqing 400715, China)
    2(Food Storage and Logistics Research Center, Southwest University, Chongqing 400715, China)

Received date: 2021-07-09

  Revised date: 2021-09-18

  Online published: 2022-10-01

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摘要

为寻求绿色、安全的天然高分子涂膜应用于鸡蛋保鲜,选取二醛基纤维素(cellulose,DAC)和羧甲基纤维素(carboxymethyl cellulose,CMC)2种天然高分子材料进行复合,对鸡蛋进行涂膜保鲜。利用高碘酸钠氧化纤维素制备DAC,加热使其成为水溶性DAC后与CMC进行交联制备复合薄膜,并对其力学性能、阻隔性能、亲水性进行表征;然后将复合涂膜剂应用于鸡蛋保鲜,考察60 d内其对鸡蛋感官品质、失重率、哈氏单位、蛋黄系数和蛋清pH的影响。结果表明,DAC的添加有利于提高复合膜的拉伸强度,增强复合膜对水蒸气和氧气的阻隔性,降低复合膜的亲水性。在对鸡蛋保鲜效果的考察中,发现复合涂膜剂对鸡蛋的失重率、哈氏单位、蛋黄系数、蛋清pH等指标的降低均有良好的抑制效果,其中DAC添加量占CMC干重12%,pH为5的复合涂膜剂的保鲜效果最佳。研究所得的高分子复合材料在绿色包装材料领域、可食性涂膜保鲜方面有重要应用价值。

关键词： 羧甲基纤维素; 水溶性二醛基纤维素; 交联; 天然高分子复合膜; 鸡蛋涂膜保鲜

本文引用格式

田玥 , 徐昊洋 , 康晓鸥 , 赵敏孜 , 阮长晴 . 二醛基纤维素/羧甲基纤维素复合薄膜的制备及在鸡蛋保鲜中的应用[J]. 食品与发酵工业, 2022 , 48(17) : 207 -213 . DOI: 10.13995/j.cnki.11-1802/ts.028558

Abstract

To seek green and safe natural polymer coating film applied to egg preservation, two natural polymer materials, dialdehyde cellulose (DAC) and carboxymethyl cellulose (CMC) were selected to prepare composite films which were applied in coating eggs for fresh-keeping. Firstly, DAC oxidized from cellulose by sodium periodate was heated to make it water-soluble, and then cross-linked with CMC to prepare the composite film (DAC/CMC). The mechanical properties, barrier properties, and hydrophilicity of DAC/CMC were characterized. Furthermore, DAC/CMC was applied as a coating agent for the preservation of the egg, and its effects on the organoleptic quality, weight loss rate, Hastelloy unit, yolk coefficient and pH of the egg white within 60 d were investigated. The results showed that the addition of DAC improved the tensile strength of composite film and further inhibited water vapor and oxygen. It also reduced the hydrophilicity of the composite film. The coating agent had a good inhibitory effect on the reduction of weight, huff unit, yolk coefficient, and pH of egg white. The coating agent with DAC accounting for 12% of the dry weight of CMC and pH 5 was the best condition for fresh-keeping. The polymer composite material has a promising application in green packaging material and the preservation of edible coating film.

Key words： carboxymethyl cellulose (CMC); water-soluble dialdehyde cellulose (DAC); crosslinking; natural polymer composite film; egg coating preservation

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