Using Multispectral Imaging to Measure Astaxanthin in Trout
Author Information
Author(s): Bjørn S. Dissing, Michael E. Nielsen, Bjarne K. Ersbøll, Stina Frosch
Primary Institution: Technical University of Denmark
Hypothesis
Can multispectral imaging accurately determine astaxanthin concentration in rainbow trout fillets?
Conclusion
Multispectral imaging is a promising method for rapidly estimating astaxanthin concentration in rainbow trout fillets.
Supporting Evidence
- The astaxanthin concentration in the samples ranged from 0.2 to 4.34 g per g fish.
- The PLSR model for multispectral images showed a RMSEP of 0.27, indicating good predictive ability.
- The study compared multispectral imaging to traditional color images, finding better results with multispectral imaging.
Takeaway
Scientists used special cameras to take pictures of trout fillets to see how much of a red pigment called astaxanthin is in them, which helps make the fish look fresh and tasty.
Methodology
The study used multispectral imaging to capture images of trout fillets and analyzed the astaxanthin concentration using a PLSR model.
Limitations
The accuracy of pixel-wise predictions remains to be validated in further studies.
Digital Object Identifier (DOI)
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