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A prototype hand-held Raman sensor for the in-situ characterization of meat quality

Title data

Schmidt, Heinar ; Sowoidnich, Kay ; Kronfeldt, Heinz-Detlef:
A prototype hand-held Raman sensor for the in-situ characterization of meat quality.
In: Applied Spectroscopy. Vol. 64 (2010) Issue 8 . - pp. 888-894.
ISSN 1943-3530
DOI: https://doi.org/10.1366/000370210792081028

Project information

Project title:
Project's official titleProject's id
Innovative Konzepte zur prozessbegleitenden Charakterisierung von Lebensmitteln auf Basis mikrosystemtechnischer Detektorvarianten, Teilvorhaben: Einsatzmöglichkeit Raman-spektroskoptischer mikrosystemtechnischer in-situ Verfahren16SV2336

Project financing: BMBF

Abstract in another language

As a tool for the in situ characterization of meat quality, a hand-held Raman sensor head using an excitation wavelength of 671 nm was developed. A microsystem-based external cavity diode laser module was integrated into the sensor head and attached to a Raman probe, which is equipped with lens optics for excitation and signal collection as well as a Raman filter stage for Rayleigh rejection. The Raman signal was guided by an optical fiber to the detection unit, which was in the initial phase a laboratory spectrometer with a charge-coupled device (CCD) detector. The laser and the sensor head were characterized in terms of stability and performance for in situ Raman investigations. Raman spectra of meat were obtained with 35 mW within 5 seconds or less, ensuring short measuring times for the hand-held device. In a series of measurements with raw and packaged pork meat, the Raman sensor head was shown to detect microbial spoilage on the meat surface, even through the packaging foil.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Raman spectroscopy; Portable Raman sensor; In situ; Meat quality; Diode laser; Microsystem technology; Microbial spoilage.
Institutions of the University: Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Lehrstuhl Bioanalytik und Lebensmittelanalytik
Profile Fields
Profile Fields > Emerging Fields
Profile Fields > Emerging Fields > Food and Health Sciences
Research Institutions
Research Institutions > Research Units
Research Institutions > Research Units > Forschungsstelle für Nahrungsmittelqualität - ForN
Result of work at the UBT: No
DDC Subjects: 500 Science
500 Science > 570 Life sciences, biology
Date Deposited: 02 Apr 2015 06:17
Last Modified: 28 Jan 2016 11:15
URI: https://eref.uni-bayreuth.de/id/eprint/9774