Determination of Ca addition to the wheat flour by using laser-induced breakdown spectroscopy (LIBS)

Bilge G., Sezer B., ESELLER K. E., Berberoglu H., Koksel H., BOYACI İ. H.

EUROPEAN FOOD RESEARCH AND TECHNOLOGY, vol.242, no.10, pp.1685-1692, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 242 Issue: 10
  • Publication Date: 2016
  • Doi Number: 10.1007/s00217-016-2668-2
  • Journal Name: EUROPEAN FOOD RESEARCH AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1685-1692
  • Keywords: Laser-induced breakdown spectroscopy, LIBS, Dietary fiber, Ash analysis, Wheat flour, Ca salt, ELEMENTAL ANALYSIS, MATRIX, SOILS
  • Gazi University Affiliated: Yes

Abstract

The aim of the study was to determine Ca addition to the flour by using laser-induced breakdown spectroscopy (LIBS) as a quick and simple multi-elemental spectroscopy method. Different amounts of CaCO3-added wheat flour were analyzed using LIBS to determine Ca content and Ca/K ratio, which is used for discrimination of natural and Ca-added flour. LIBS spectra were quantitatively evaluated with partial least square (PLS) method as a multivariate data analysis method to eliminate the matrix effect. Ca and Ca/K calibration graphs of PLS method showed good linearity with coefficient of determinations (R (2)) 0.999. Limit of detection values for Ca and Ca/K analysis were calculated as 25.9 ppm and 0.013, respectively. Furthermore, the results were found to be consistent with the data obtained from atomic absorption spectroscopy method as a reference method for flour samples.