食品科学

• 基础研究 • 上一篇    下一篇

红外辐照对魔芋葡甘聚糖膜吸水性能及结构的影响

徐 梅,朱于鹏,汪 超,龚元元,李冬生,曹约泽   

  1. 1.湖北工业大学食品与制药工程学院,湖北 武汉 430068;
    2.湖北省食品发酵工程技术研究中心,湖北 武汉 430068
  • 出版日期:2013-06-15 发布日期:2013-06-03

Effect of Infrared Radiation on Water Absorption of Konjac Glucomannan Films and Structure Characterization

XU Mei,ZHU Yu-peng,WANG Chao,GONG Yuan-yuan,LI Dong-sheng,CAO Yue-ze   

  1. 1. College of Food and Pharmaceutical Engineering, Hubei University of Technology, Wuhan 430068, China;
    2. Research Center of Food Fermentation Engineering and Technology of Hubei Province, Wuhan 430068, China
  • Online:2013-06-15 Published:2013-06-03

摘要:

以魔芋葡甘聚糖(KGM)为对象,通过红外辐照温度、时间、强度和KGM分子质量的单因素试验,考察红外辐照对KGM膜吸水性能的影响,进一步采用扫描电子显微镜、红外光谱和X射线衍射表征KGM的结构。结果表明:红外辐照对KGM膜吸水性能影响显著,辐照温度与膜吸水率存在负相关性,红外辐照致使KGM分子发生氧化降解反应。

关键词: 魔芋葡甘聚糖, 红外辐照, 膜, 吸水性能, 结构表征

Abstract:

In this work, we used one-factor-at-a-time design to explore the effects of infrared radiation temperature, time
and strength and the molecular weigth of konjac glucomannan (KGM) on water absorption of KGM films. Meanwhile,
scanning electron microscopy, infrared spectroscopy and X-ray diffraction was used to characterize the structure of KGM
films. The results showed that infrared radiation had a substantial influence on water absorption of KGM films. Moreover,
radiation temperature was negatively correlated with water adsorption of KGM films, and infrared radiation induced
oxidative degradation of KGM molecules.

Key words: konjac glucomannan, infrared radiation, film, water absorption, structure characterization