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Title: Monitoring honey and complex liquids by optical chromaticity
Author: Sufian, Amr T.
ISNI:       0000 0004 5365 4171
Awarding Body: University of Liverpool
Current Institution: University of Liverpool
Date of Award: 2014
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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.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: TK Electrical engineering. Electronics Nuclear engineering