ATR/FTIR characterization of Steinernema glaseri and Heterorhabditis indica

• DOI: 10.1016/j.vibspec.2011.07.008
• Publication Date: 2011-08-02T01:24:27Z
• Authors: Ernesto San-Blas; Mayamarú Guerra; Edgar Portillo; Iván Esteves; Nestor Cubillán; Ysaías Alvarado
• Keywords: 0303 health sciences; 03 medical and health sciences

Abstract The use of Fourier transform mid-infrared spectroscopy with attenuated total reflection for characterizing entomopathogenic nematodes is evaluated for the first time. The resulting spectra of Steinernema glaseri and Heterorhabditis indica were compared with the spectrum of Caenorhabditis elegans. In the absorption spectra generated by the nematodes samples, the absorption bands were assigned to the molecular species and some important components were identified including triglycerides, trehalose, glycogen and collagen. Also, the use of star diagrams for the fingerprint section of nematode spectra for separating genera is discussed.