title: Identification of meat species by using laser-induced breakdown spectroscopy.
abstract: The aim of the present study is to identify meat species by using laser-induced breakdown spectroscopy (LIBS). Elemental composition differences between meat species were used for meat identification. For this purpose, certain amounts of pork, beef and chicken were collected from different sources and prepared as pellet form for LIBS measurements. The obtained LIBS spectra were evaluated with some chemometric methods, and meat species were qualitatively discriminated with principal component analysis (PCA) method with 83.37% ratio. Pork-beef and chicken-beef meat mixtures were also analyzed with partial least square (PLS) method quantitatively. Determination coefficient (R(2)) and limit of detection (LOD) values were found as 0.994 and 4.4% for pork adulterated beef, and 0.999 and 2.0% for chicken adulterated beef, respectively. In the light of the findings, it was seen that LIBS can be a valuable tool for quality control measurements of meat as a routine method.
authors.affiliation: Department of Food Engineering, Hacettepe University, Beytepe, 06800 Ankara, Turkey. Electronic address: goncabilge@yahoo.com.tr.
authors.forename: Gonca
authors.initials: G
authors.lastname: Bilge
authors.affiliation: Department of Agricultural Biotechnology, Namık Kemal University, 59030 Tekirdag, Turkey. Electronic address: mvelioglu@nku.edu.tr.
authors.forename: Hasan Murat
authors.initials: HM
authors.lastname: Velioglu
authors.affiliation: Department of Food Engineering, Hacettepe University, Beytepe, 06800 Ankara, Turkey.
authors.forename: Banu
authors.initials: B
authors.lastname: Sezer
authors.affiliation: Department of Electrical and Electronics Engineering, Atilim University, 06836 Ankara, Turkey. Electronic address: efe.eseller@atilim.edu.tr.
authors.forename: Kemal Efe
authors.initials: KE
authors.lastname: Eseller
authors.affiliation: Department of Food Engineering, Hacettepe University, Beytepe, 06800 Ankara, Turkey; Food Research Center, Hacettepe University, Beytepe, 06800 Ankara, Turkey. Electronic address: ihb@hacettepe.edu.tr.
authors.forename: Ismail Hakki
authors.initials: IH
authors.lastname: Boyaci
mesh_terms: D000818:Animals; D002417:Cattle; D002645:Chickens; D016018:Least-Squares Analysis; D008460:Meat / Q000032:analysis*; D025341:Principal Component Analysis; D013057:Spectrum Analysis / Q000379:methods*; D013552:Swine
keywords: Laser-induced breakdown spectroscopy (LIBS); Meat adulteration; Meat identification; Multivariate data analysis