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J4 ›› 2009, Vol. 6 ›› Issue (3): 290-297.doi: 10.1016/S1672-6529(08)60122-5

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Rapid Identification of Rice Samples Using an Electronic Nose

Xian-zhe Zheng1, Yu-bin Lan2, Jian-min Zhu3, John Westbrook2, W. C. Hoffmann2, R. E. Lacey4   

  1. 1. College of Engineering, Northeast Agricultural University, Harbin 150030, P. R. China
    2. USDA-ARS, College Station, TX 77845, USA
    3. Department of Mathematics and Computer Science, Fort Valley State University, GA 31030, USA
    4. Department of Biological and Agricultural Engineering, Texas A&M University, College Station, Texas 77843-2117, USA
  • Online:2009-09-30
  • Contact: Yu-bin Lan E-mail: Yubin.lan@ars.usda.gov E-mail:Yubin.lan@ars.usda.gov

Abstract:

Four rice samples of long grain type were tested using an electronic nose (Cyranose-320). Samples of 5 g of each variety of rice were placed individually in vials and were analyzed with the electronic nose unit consisting of 32 polymer sensors. The Cyranose-320 was able to differentiate between varieties of rice. The chemical composition of the rice odors for differentiating rice samples needs to be investigated. The optimum parameter settings should be considered during the Cyranose-320 training process especially for multiple samples, which are helpful for obtaining an accurate training model to improve identification capability. Further, it is necessary to investigate the E-nose sensor selection for obtaining better classification accuracy. A re-duced number of sensors could potentially shorten the data processing time, and could be used to establish an application pro-cedure and reduce the cost for a specific electronic nose. Further research is needed for developing analytical procedures that adapt the Cyranose-320 as a tool for testing rice quality.

Key words: rice grain, identification, electronic nose, data analysis, pattern recognition