食品科学 ›› 2011, Vol. 32 ›› Issue (3 ): 73-75.doi: 10.7506/spkx1002-6630-201103018

• 基础研究 • 上一篇    下一篇

乙醇阻溶体积分数对魔芋葡甘聚糖结构及性能影响

陈士勇1,汪 超1 , 2 ,*,靳贞亮1,周兴才1,钟晓玲1,宋娟1,姜发堂1,2   

  1. 1.湖北工业大学生物工程学院,湖北武汉 430068;2 .武汉力诚生物科技有限公司,湖北武汉 430068
  • 收稿日期:2010-03-22 修回日期:2011-01-10 出版日期:2011-02-15 发布日期:2011-01-13
  • 通讯作者: 汪超 E-mail:wangchao5412@163.com
  • 基金资助:

    武汉市“晨光计划”项目(20065004116-52);湖北省教育厅项目(20063036)

Influence of Alcohol Treatment at Various Concentrations on the Structure and Properties of Konjac Glucomannan

CHEN Shi-yong,WANG Chao,JIN Zhen-liang,ZHOU Xing-cai,ZHONG Xiao-ling,SONG Juan,JIANG Fa-tang   

  1. 1. College of Bioengineering, Hubei University of Technology, Wuhan 430068, China;
    2. Wuhan Licheng Biotechnology Co. Ltd., Wuhan 430068, China
  • Received:2010-03-22 Revised:2011-01-10 Online:2011-02-15 Published:2011-01-13
  • Contact: WANG Chao E-mail:wangchao5412@163.com

摘要: 运用激光粒度仪考察不同乙醇体积分数下的KGM 粒度变化,分析其流变性能差异,并探讨阻溶剂乙醇对KGM 结构的影响。结果显示:KGM 的比表面积随乙醇体积分数增加而逐渐增大,其相对应的中位径、峰值黏度和溶胀速率随之降低,反映出乙醇阻溶体积分数影响其性能的变化。SEM、FT-IR 及X-ray 分析表明高体积分数的乙醇能促使KGM 分子链之间形成的氢键作用加强,局部有序层叠排列的结构,与其性能大小相印证。

关键词: 魔芋葡甘聚糖, 乙醇溶液, 阻溶, 结构, 性能

Abstract: The change of KGM particle size in different alcohol concentration (φalcohol) was detected by using laser particle size analyzer, and the differences in rheological performance as well as the effect of alcohol inhibitor solvent on the structure of KGM were investigated. The results showed that the specific surface area of KGM increased with φalcoho, while the medium diameter, peak viscosity (ηmax) and swelling rate reduced, which implied that the concentration of alcohol inhibitor affects the performance of KGM. SEM, FT-IR and X-ray analysis showed that high concentration of alcohol could promote the hydrogen bonds among the molecules chains of KGM, producing a sequentially overlapped structure in part, which can be evidenced by its performance.

Key words: konjac glucomannan, alcohol /solution, solvent resistance, structure, performance

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