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Detection of Fish Bones in Cod Fillets by UV Illumination
Sheng Wang1, Rui Nian1, Limin Cao1
1Food Safety Laboratory, Ocean University of China, Qingdao, People's Republic of China 266003.
Journal of Food Protection
|July 22, 2015
Summary
New UV fluorescence candling effectively detects fish bones in seafood. This method offers higher detection rates and efficiency than traditional daylight inspection, improving food safety.
Area of Science:
- Food Science
- Analytical Chemistry
- Biophysics
Background:
- Fish bone detection is crucial for seafood safety.
- Existing methods for bone detection lack sufficient accuracy and efficiency.
- Novel analytical techniques are needed for effective control of bone hazards in fishery products.
Purpose of the Study:
- To investigate the UV fluorescence properties of cod bones.
- To develop and evaluate a UV fluorescence-assisted candling technique for fish bone detection.
- To compare the performance of UV fluorescence candling with traditional methods.
Main Methods:
- Characterization of cod bone fluorescence under UV illumination (excitation/emission wavelengths).
- Development of a UV fluorescence-assisted candling system for fishery products.
- Evaluation of detection ratio and working efficiency using cod fillets.
- Preliminary development of an automated fish bone identification system using UV fluorescence imaging and linear discriminant analysis.
Main Results:
- Cod bones exhibit distinct fluorescence properties (max excitation 320 nm, max emission 515 nm) with higher intensity than muscle tissue.
- UV fluorescence-assisted candling achieved a 90.86% detection ratio, significantly outperforming daylight candling (76.78%).
- The new technique demonstrated a 26% increase in working efficiency compared to the traditional method.
- Automated identification via UV fluorescence imaging showed poorer detection ratios than candling techniques.
Conclusions:
- UV fluorescence-assisted candling is a promising, effective method for detecting fish bones in fishery products.
- This technique offers significant improvements in detection accuracy and efficiency over conventional methods.
- UV-based approaches represent a novel and viable strategy for routine bone monitoring in the seafood industry.
