Survey of natural radioactivity levels in Ilex paraguariensis (St. Hil.) by gamma-ray spectrometry



Document title: Survey of natural radioactivity levels in Ilex paraguariensis (St. Hil.) by gamma-ray spectrometry
Journal: Brazilian archives of biology and technology
Database: PERIÓDICA
System number: 000348542
ISSN: 1516-8913
Authors: 1
1
Institutions: 1Universidade Estadual de Londrina, Departamento de Fisica, Londrina, Parana. Brasil
Year:
Season: Sep
Volumen: 50
Number: 5
Pages: 901-904
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract The mate tea (Ilex paraguariensis – St. Hil.) is a beverage broadly cultivated and consumed in Brazil. The radioactive traces present in three trademarks of toasted mate tea produced at the south of Brazil were analyzed. Measurements were carried out by gamma-ray spectrometry. The average value for the 40K activity measured for marks A, B and C was 1216 ± 8, 1047 ± 14 and 666 ± 13 Bq.kg-1, respectively. The 137Cs activity was lower than the limit of detection
Portuguese abstract Uma bebida amplamente consumida e cultivada no Brasil é o chá-mate (Ilex paraguariensis – St. Hil). Foram analisados os traços radioativos de três marcas comerciais de chá-mate tostado produzidos no sul do Brasil. As medidas foram realizadas por espectrometria gama. Os valores médios para as atividades medidas do 40K, para as marcas A, B e C foram 1216 ± 8, 1047 ± 14 e 666 ± 13 Bq.kg-1, respectivamente. As atividades para o 137Cs foram menores que o limite mínimo de detecção
Disciplines: Química
Keyword: Química de alimentos,
Ilex paraguariensis,
Yerba mate,
Espectrometría gama
Keyword: Chemistry,
Food chemistry,
Ilex paraguariensis,
Mate tea,
Gamma ray spectrometry
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