食品科学

• 基础研究 • 上一篇    下一篇

添加中草药对黄原胶-长角豆半乳甘露聚糖复合膜性质的影响

叶文斌1,樊 亮1,贠汉伯2,*   

  1. 1.陇南师范高等专科学校生化系,甘肃 陇南 742500;
    2.中国科学院寒区旱区环境与工程研究所 冻土工程国家重点实验室,甘肃 兰州 730000
  • 出版日期:2013-07-15 发布日期:2013-06-28
  • 通讯作者: 贠汉伯
  • 基金资助:

    国家“863”计划项目(2006EA780088);广东省科技厅科技计划项目(2007B080701046);
    冻土工程国家重点实验室自主基金项目(SKLFSE-ZY-05)

Effect of Chinese Medicinal Herbs on Packaging Performance of Xanthan Gum-locust Bean Galactomannan Composite Film

YE Wen-bin1,FAN Liang1,YUN Han-bo2,*   

  1. 1. Department of Life Science and Chemistry, Longnan Normal College, Longnan 742500, China;
    2. State Key Laboratory of Frozen Soil Engineering, Cold and Arid Region Environment and Engineering Research Institute,
    Chinese Academy of Sciences, Lanzhou 730000, China
  • Online:2013-07-15 Published:2013-06-28
  • Contact: YUN Han-bo

摘要:

以黄原胶和长角豆半乳甘露聚糖为成膜基质,添加适量的增塑剂和中草药成分,制备可食性复合膜。研究 复合膜中中草药大黄和五倍子对可食性复合膜的力学性能、透湿性、透光率及其颜色的影响。结果表明:随着中草 药成分比例的增加,复合膜的抗拉强度逐渐升高,断裂伸长率下降,透湿性逐渐降低,而透明度则逐渐降低,膜的 明度值逐渐下降,绿色值逐渐增加;中草药与黄原胶-长角豆半乳甘露聚糖复合膜可食、环保、可降解,因此,可 以应用到食品和果蔬的保鲜与长途运输包装方面具有潜在的应用前景。

关键词: 黄原胶, 长角豆半乳甘露聚糖, 中草药可食性膜, 力学性能, 阻隔性

Abstract:

The aim of this work was to manufacture edible composite films by extrusion from xanthan gum and locust
bean galactomannan. Plasticizers and Chinese medicinal herbal extracts were added to improve the film flexibility.
The influence of the concentrations of rhubarb and Chinese gall extracts on mechanical properties, water resistance,
light transmittance, and color properties of edible composite films were investigated. The results indicated that with
increasing concentrations of both extracts, the tensile strength (TS) of films increased, whereas the elongation at break
(E), water vapor permeability and light transmittance decreased. Additionally, the films became darker and showed a
higher green value. In conclusion, composite films made from xanthan gum and locust bean galactomannan as well
as Chinese medicinal herbal extracts are edible, green and degradable and may have promising application prospects
in delaying the postharvest senescence and long-distance transportation during storage and extending the shelf life of
vegetables and fruits.

Key words: xanthan gum, locust bean galactomannan, Chinese herbal edible film, mechanical properties, barrier property

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