食品科学

• 基础研究 • 上一篇    下一篇

珠芽魔芋精粉的理化性质

邓利玲1,徐小青1,杨延迅1,王 俏1,钟 耕1,2,*   

  1. 1.西南大学食品科学学院,重庆 400716;2.重庆高校魔芋资源利用工程研究中心,重庆 400715
  • 出版日期:2013-09-15 发布日期:2013-09-27
  • 通讯作者: 钟耕

Physico-chemical Properties of Konjac Fine Flour from Amorphophallus bulbifer

DENG Li-ling1,XU Xiao-qing1,YANG Yan-xun1,WANG Qiao1,ZHONG Geng1,2,*   

  1. (1. College of Food Science, Southwest University, Chongqing 400716, China;
    2. Engineering Center of Chongqing Universities of Konjac Resources Research, Chongqing 400715, China
  • Online:2013-09-15 Published:2013-09-27
  • Contact: ZHONG Geng

摘要:

以珠芽魔芋精粉为原料,研究魔芋葡甘聚糖(KGM)含量、表观黏度、色度和白度、水溶性能、凝胶性能,运用紫外光谱、红外光谱、核磁共振研究其官能团,并与白魔芋和花魔芋作比较。结果表明:珠芽魔芋精粉的理化性质与花魔芋、白魔芋精粉相比相当,并在KGM含量、黏度、溶液稳定性、及与卡拉胶复配的热可逆凝胶中表现出一定的优势。

关键词: 珠芽魔芋精粉, 理化性质, 比较

Abstract:

Konjac fine flours from Amorphophallus bulbifer, Amorphophallu rivieri and Amorphophallu albus were
comparatively investigated for konjac glucomannan (KGM) content, apparent viscosity, color parameters, whiteness,
solubility and gelation properties. Meanwhile, a comparative analysis of functional groups in their structures was also carried
out by UV spectroscopy, infrared spectroscopy and nuclear magnetic resonance. Konjac fine flour from Amorphophallus
bulbifer had similar physico-chemical properties to those from Amorphophallu rivieri and Amorphophallu albus, but was
superior in terms of KGM content, viscosity, stability in solution and thermo-reversible gel blended with carrageenan.

Key words: konjac fine flour from Amorphophallus bulbifer, physicochemical properties, comparative study

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