Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (4): 55-60.doi: 10.3969/j.issn.1000-565X.2010.04.011

• Food Science & Technology • Previous Articles     Next Articles

Determination of Diameter Distribution of Starch Granules by FBRM

Zhang Ben-shan1 Chen Fu-quan1  Zhao Yong-qing2  Gao Ling-yun1  Chen Cui-lan1  Lu Hai-feng1  Han Zhong1   

  1. 1.School of Light Industry and Food Sciences,South China University of Technology,Guangzhou 510640,Guangdong,China;2.The Key Laboratory of Polymer Processing Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2009-05-21 Revised:2009-07-17 Online:2010-04-25 Published:2010-04-25
  • Contact: 张本山（1964-），男，博士，副教授，主要从事淀粉材料及污水处理研究． E-mail:zbs968@rip．sina．com
  • About author:张本山（1964-），男，博士，副教授，主要从事淀粉材料及污水处理研究．
  • Supported by:

    国家科技支撑计划项目（2006BAD27B04）; 广东省科技计划项目（2007B080401010）

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Abstract:

In order to monitor the diameter change of starch granules in physical or chemical process on line,the influences of the starch slurry concentration,stirring rate and medium on the distribution of the granule diameter were investigated by means of FBRM.Moreover,the granule diameter distribution curves of different starches and the granule diameters of the same starch measured by different methods were analyzed.The results show that（1） with the increase of starch slurry concentration,the granule diameter measured by FBRM first increases and then decreases,and it reaches its maximum at a slurry concentration of 1%;（2） the stirring rate slightly affects the measurement of the granule diameter;（3） the granule diameter distribution becomes stable when ethanol and isopropanol with a concentration of lower than 50%,or glycerol with a concentration of higher than 75%,is used as the medium;（4） the distribution curves of the granule diameter vary with the starch type;and（5） even for the same starch granule,the measured diameter is inconstant due to different measurement methods.

Key words: FBRM, starch granule, granule diameter, granule diameter distribution, starch slurry concentration