DALTON GIOVANNI NOGUEIRA DA SILVA
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Artigo IPEN-doc 25904 Sodium analysis in sweeteners by neutron activation analyses technique2019 - MEDEIROS, I.M.M.A.; ZAMBONI, C.B.; GIOVANNI, D.N.S.; MEDEIROS, J.A.G.Evaluation of Sodium in sweeteners is important in nutritional investigations and for consumers: excessive sodium consumption is one of the major risk factors, responsible for hypertension and cardiovascular diseases. In this study, twelve brands acquired in markets of São Paulo city were analysed by Instrumental Neutron Activation Analyses technique (INAA). The aim was to verify compliance with ANVISA recommendation in relation to sodium level. The results were compared with the amounts recommended and with the tolerable intake limit (< 0.4 g/kg). The sodium concentration in sweeteners samples showed low content for most of the brands. The results shown that for the general population, it is not risk.Artigo IPEN-doc 25899 Sulfur status in judo athletes by XRF2019 - ALMEIDA, M.R.; ZAMBONI, C.B.; GIOVANNI, D.N.S.; AZEVEDO, M.R.A.The human biomonitoring, measurement of chemical and/or their metabolites in human fluids, is an important tool for assessing the health condition of subjects, included athletes. In this study, sulfur levels were investigated in blood of judo athletes using Energy Dispersive X-ray Fluorescence (EDXRF) technique. Twenty athletes participated of this study. Two groups of athletes were selected: judo with a balanced diet with multivitamin/mineral supplements consumption and judo with diet not controlled. These data were compared with the control group (subjects of the same age but not involved with physical activities). There was a significant increase of S levels in athletes with diet not controlled. These data can be useful to a well-planned nutritional proposition that can contribute to better performance of athletes.Artigo IPEN-doc 26146 Investigation of elements in sweeteners by NAA analytic technique2019 - MEDEIROS, ILCA M.M.A.; ZAMBONI, CIBELE B.; GIOVANNI, DALTON N.S.; MEDEIROS, JOSÉ A.G. deIn this study, brands of sweeteners (aspartame and sucralose) marketed in Brazil were investigated by Neutron Activation Analysis (NAA). The measurements were performed using the IEA-R1 nuclear reactor at IPEN - CNEN/SP. The elements Cl and Na were identified in all samples. The Na concentration in sweeteners samples showed low content for most of the brands (0.013 –3.81 g kg-1), while Cl had high concentration variation (0.04 – 11.10 g kg-1). These data provide knowledge regarding nutritional aspect and toxicity derived from sweetener consumption.