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A New Method for Total Fat Detection in Raw Milk Based on Dual Low-Coherence Interferometer.
- Source :
-
Sensors (Basel, Switzerland) [Sensors (Basel)] 2019 Oct 20; Vol. 19 (20). Date of Electronic Publication: 2019 Oct 20. - Publication Year :
- 2019
-
Abstract
- The present work experimentally demonstrates a multimode fiber optic sensing setup for total fat detection in raw milk samples. The optical fiber arrangement incorporates a low-coherence Fabry-Perot cavity operating in dual response. The system provides a phase modulation for a total fat range from 0.97% to 4.36%. Here, the protein remains constant at 3%. The data indicate that maximum sensitivity close to 616 pm/%fat could be achieved at optimal wavelength operation (500 nm). In addition, the system presented a minimal repeatability error measurement of 0.08%, cross-sensitivity between protein and fat of 0.134, and a regression coefficient of r2=0.9763. A thermal analysis was also performed, which indicate the temperature immunity of the system. The proposed method represents a low-cost alternative to detect minimal fat variations in raw cow milk.<br />Competing Interests: The authors declare no conflicts of interest.
Details
- Language :
- English
- ISSN :
- 1424-8220
- Volume :
- 19
- Issue :
- 20
- Database :
- MEDLINE
- Journal :
- Sensors (Basel, Switzerland)
- Publication Type :
- Academic Journal
- Accession number :
- 31635201
- Full Text :
- https://doi.org/10.3390/s19204562