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Proceedings Paper

Mathematic modeling the relationship of bacteria number in a dairy product and the color difference measured by a CCD image sensor
Author(s): Zhen Zhou; Zhigang Zhao; Dongkui Chen; Yuping Liu
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Paper Abstract

Although many methods, such as bacteria plate count, flow cytometry and impedance method have been broadly used in the dairy industry to quantitate bacteria numbers around the world, none of them is a quick, low cost and easy one. In this study, we proposed to apply the color difference theory in this field to establish a mathematic model to quantitate bacteria number in fresh milk. Preliminary testing results not only indicate that the application of the color difference theory to the new system is practical, but also confirm the theoretical relationship between the numbers of bacteria, incubation time and color difference. The proof of the principal study in this article further suggests that the novel method has the potential to replace the traditional methods to determine bacteria numbers for the food industry.

Paper Details

Date Published: 20 January 2005
PDF: 6 pages
Proc. SPIE 5633, Advanced Materials and Devices for Sensing and Imaging II, (20 January 2005); doi: 10.1117/12.574820
Show Author Affiliations
Zhen Zhou, Harbin Univ. of Science and Technology (China)
Zhigang Zhao, Harbin Univ. of Science and Technology (China)
Dongkui Chen, Harbin Univ. of Science and Technology (China)
Yuping Liu, Harbin Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 5633:
Advanced Materials and Devices for Sensing and Imaging II
Anbo Wang; Yimo Zhang; Yukihiro Ishii, Editor(s)

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