A New Method for Determining the Quality of Bionanocomposite Layers of Chicken Eggshells

A new method for determining the quality of the shell of edible and hatching eggs of hens has been developed. The method is based on thermal programmed desorption-mass spectrometry (TPD-MS), which consists in study kinetic parameters of carbon dioxide release from a 0,5 – 5 mkg eggshell sample during a linear temperature rise in vacuumed quartz tubes by electron impact ionization mass spectrometer with subsequent mathematical processing of obtained thermograms (curves “signal intensity carbon dioxide vs temperature”). Analysis of the thermograms makes it possible to sorting of hatching and laying hen eggs according to quality indicators, which closely correlate with indicators of density and peculiarities of microstructure of biocrystalline layers of eggshells of incubation and laying eggs. These data allow us to make conclusions about the suitability of certain batches of eggs to further technological operations