Monitoring honey and complex liquids by optical chromaticity

Sufian, Amr
Monitoring honey and complex liquids by optical chromaticity. PhD thesis, University of Liverpool.

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The potential of optically monitoring complex composite liquids such as honey has been demonstrated using optical light properties. The novel approach has the potential for distinguishing between various honey samples to quantify and discriminate for deviations from the norm and for early warning of contamination/adulteration in honey using readily available, cost effective and portable instrumentation that can be used robustly on the field, which replaces individual absolute measuring instruments. The novel approach was developed based upon chromatically processing test data with three different optical methods simultaneously (transmission, polarization and fluorescence) for use as primary, secondary chromatic maps and an assessment flow chart to provide a rapid decision capability on the condition of the honey according to quality attributes. As such it can provide insight into conditions important to the food industry. Novel methods for compensation, calibration, normalization and ambient light rejection procedures have been developed to allow operation in a range of lightening conditions such as in the field and factory. The chromatic approach sensitivity for identifying the correct classification of high quality honey samples was 91% and the sensitivity for identifying very poor quality samples was 75%. The portable honey monitoring system was tested for field trials at various locations across Yemen for monitoring the condition of honey samples. The sensitivity for correct classifications of the high quality honey sample samples was 88% and the sensitivity for identifying very poor quality honey samples was 63%. Chromatic methodology provided robustness for field use.

Item Type: Thesis (PhD)
Additional Information: Date: 2014-02 (completed)
Uncontrolled Keywords: Chromatic Monitoring, Honey, Complex, Liquids, Optical Chromaticity
Subjects: ?? TK ??
Divisions: Faculty of Science and Engineering > School of Electrical Engineering, Electronics and Computer Science
Depositing User: Symplectic Admin
Date Deposited: 06 May 2015 14:42
Last Modified: 17 Dec 2022 00:51
DOI: 10.17638/00019633
  • Spencer, Joseph