Survey of natural radioactivity levels in Ilex paraguariensis (St. Hil.) by gamma-ray spectrometry
Braz. arch. biol. technol
;
50(5): 901-904, Sept. 2007. tab
Article
in English
| LILACS
| ID: lil-468172
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.
RESUMO
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.
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Index:
LILACS (Americas)
Main subject:
Ilex paraguariensis
/
Food Technology
Language:
English
Journal:
Braz. arch. biol. technol
Journal subject:
Biology
Year:
2007
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual de Londrina/BR
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