食品科学

• 工艺技术 • 上一篇    下一篇

脱敏魔芋粉制备集成技术初探及其对魔芋粉理化性质的影响

孟凡冰1,2,王小燕1,范定涛1,钟 耕1,3,4,*   

  1. 1.西南大学食品科学学院,重庆 400716;2.重庆西大魔芋科技开发有限公司,重庆 400700;
    3.西南大学食品科学与工程国家级本科实验教学中心,重庆 400716;4.四川魔力科技有限公司,四川 绵阳 621000
  • 出版日期:2015-01-25 发布日期:2015-01-16
  • 通讯作者: 钟 耕
  • 基金资助:

    重庆市前沿与应用基础研究计划一般项目(cstc2014jcyjA80040);
    重庆市“121”科技示范工程创新项目(cstc2014zktjccxyyB0022)

Preparation of Konjac Flour by Combined Use of Different Techniques and Its Physicochemical Properties

MENG Fanbing1,2, WANG Xiaoyan1, FAN Dingtao1, ZHONG Geng1,3,4,*   

  1. 1. College of Food Science, Southwest University, Chongqing 400716, China;
    2. Chongqing Southwestern University Science and Technology Development Co. Ltd., Chongqing 400700, China;
    3. National Undergraduate Experimental Demonstration Teaching Center of Food Science and Engineering, Southwest University,
    Chongqing 400716, China; 4. Sichuan Magic Technology Co. Ltd., Mianyang 621000, China
  • Online:2015-01-25 Published:2015-01-16
  • Contact: ZHONG Geng

摘要:

为了有效脱除魔芋粉中的生物碱,从而扩大其应用范围,本研究开发出超微粉碎、酶处理、微波辅助乙醇萃取等集成技术。结果表明,魔芋粉目数在160 目时,经过以上集成技术处理,其生物碱基本脱除干净,且处理后的魔芋粉溶胀性、亮度值相对于对照组有提高,黏度稳定性几乎不变。其形成的水凝胶网络结构稳定、抗剪切变形能力强。说明此技术可以用于制备脱敏魔芋粉,且还可以改善魔芋粉的部分理化性质。

关键词: 魔芋粉, 脱敏, 技术集成, 理化性质

Abstract:

In this study, we developed an integrated procedure using ultrafine grinding, α-amylase treatment and microwaveassisted
extraction to prepare konjac flour with expanded applicability by removing alkaloids. The results indicated that
alkaloids could be removed almost completely from 160-mesh konjac flour by the integrated methods. Compared with the
control sample, the treated konjac flour had higher swelling ability and luminance value and also had a stable hydrogel
network structure and a high ability of shear deformation resistance, but the viscosity stability almost remained
constant. Therefore, this integrated procedure can be used to prepare alkaloid-free konjac flour with improved
physicochemical properties.

Key words: konjac flour, allergen removal, integrated technology, physicochemical property

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