02031naa a2200325 a 450000100080000000500110000800800410001902400360006010000180009624502290011426000090034352009670035265000170131965000150133665000210135165000100137265000110138265000210139365300220141465300180143665300210145465300240147570000190149970000180151870000230153670000160155970000210157570000230159677300860161921121442019-10-03       2019    bl uuuu     u00u1 u    #d7 a10.1007/s10973-019-08194-92DOI1 aBACILA, D. M.  aThermal profile of 4,40' dinitrocarbanilide determined by thermogravimetry differential scanning calorimetry mass spectrometry (TG DSC MS) and pyrolysis gas chromatography mass spectrometry (Py GC MS).h[electronic resource]  c2019  aNicarbazin is an anticoccidial used in poultry production. Its residue of concern left in chicken meat is 4,40 -dinitrocarbanilide (DNC) whose content can be reduced through meat thermal processing. Thermal analysis techniques can be considered to elucidate how DNC degradation proceeds. This study aimed to investigate the thermal behavior of DNC using TG-DSC-MS and Py-GC-MS. TG-DSC-MS data showed that DNC decomposition occurs in a single step (252-280 C) as an endothermic event (DH of 670 J g-1). Fragments detected at m/z 43, 44 and 65 indicated the release of isocyanic acid, carbon dioxide and 4-nitroaniline as breakdown products. In addition, Py-GC-MS analysis confirmed that DNC is thermally degraded above 250 C generating 4-nitrophenyl isocyanate and 4-nitroaniline as the major pyrolysis products. Findings obtained from thermal analysis herein are useful to better comprehend the DNC disappearance after submitting chicken meat to heat processing.  aChicken meat  aNicarbazin  aThermal analysis  aCarne  aFrango  aResíduo Quimico  aAnálise térmica  aAnticoccidial  aChemical residue  aResidue degradation1 aLAZZAROTTO, M.1 aHANSEL, F. A.1 aSCHEUERMANN, G. N.1 aFEDDERN, V.1 aCUNHA JUNIOR, A.1 aIGARASHI-MAFRA, L.  tJournal of Thermal Analysis and Calorimetrygv. 138, n. 1, p. 697-701, Oct. 2019.