Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do Sul
The objective of this paper was to determine nitrate and nitrite anions in toasted fish skin tea, which the population of southern Rio Grande do Sul believes to have pharmacological properties for trating asthma. Two methods were compared, an official and one described by Guozhen et al., that has th...
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Sociedade Brasileira de Química
2006-10-01
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doaj-ffa86f74ba7148268b2a26feb4792d892020-11-24T23:51:21ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642006-10-0129589590010.1590/S0100-40422006000500002S0100-40422006000500002Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do SulAdemir Larrea Bastos0Ana Luiza Muccilo Baisch1Leonor Almeida de Souza Soares2Janaína Fernandes de Medeiros Burkert3Eliana Badiale Furlong4Universidade Federal do Rio GrandeUniversidade Federal do Rio GrandeUniversidade Federal do Rio GrandeUniversidade Federal do Rio GrandeUniversidade Federal do Rio GrandeThe objective of this paper was to determine nitrate and nitrite anions in toasted fish skin tea, which the population of southern Rio Grande do Sul believes to have pharmacological properties for trating asthma. Two methods were compared, an official and one described by Guozhen et al., that has the advantage of not needing reduction of nitrate to nitrite on a Cd column. The samples were the skin of the fish species Balistes capriscus (peixe porco) and Menticirrhus littoralis (papa-terra), both crude and toasted, as traditionally used. The method of Guozhen et al. was used due to its performance (detection limit 0.005 µmol/L NO3- and 0.02 µmol/L - NO2- and mean recuperation of 100 and 97% respectively for each anion) and results similar to those of the official methods under conditions used by the population, the estimated daily intake, of the teas is equivalent to 0.03 to 0.05 mg of nitrate and 0.007 to 0.014 mg of nitrite. These values are in accord with safety recommendations and don't represent a health risk.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000500002&lng=en&tlng=ennitratenitritefish skin |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ademir Larrea Bastos Ana Luiza Muccilo Baisch Leonor Almeida de Souza Soares Janaína Fernandes de Medeiros Burkert Eliana Badiale Furlong |
spellingShingle |
Ademir Larrea Bastos Ana Luiza Muccilo Baisch Leonor Almeida de Souza Soares Janaína Fernandes de Medeiros Burkert Eliana Badiale Furlong Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do Sul Química Nova nitrate nitrite fish skin |
author_facet |
Ademir Larrea Bastos Ana Luiza Muccilo Baisch Leonor Almeida de Souza Soares Janaína Fernandes de Medeiros Burkert Eliana Badiale Furlong |
author_sort |
Ademir Larrea Bastos |
title |
Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do Sul |
title_short |
Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do Sul |
title_full |
Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do Sul |
title_fullStr |
Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do Sul |
title_full_unstemmed |
Determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do Rio Grande do Sul |
title_sort |
determinação de nitrato e nitrito em chás de peles de pescados empregados para tratamento de asma brônquica na região sul do rio grande do sul |
publisher |
Sociedade Brasileira de Química |
series |
Química Nova |
issn |
1678-7064 |
publishDate |
2006-10-01 |
description |
The objective of this paper was to determine nitrate and nitrite anions in toasted fish skin tea, which the population of southern Rio Grande do Sul believes to have pharmacological properties for trating asthma. Two methods were compared, an official and one described by Guozhen et al., that has the advantage of not needing reduction of nitrate to nitrite on a Cd column. The samples were the skin of the fish species Balistes capriscus (peixe porco) and Menticirrhus littoralis (papa-terra), both crude and toasted, as traditionally used. The method of Guozhen et al. was used due to its performance (detection limit 0.005 µmol/L NO3- and 0.02 µmol/L - NO2- and mean recuperation of 100 and 97% respectively for each anion) and results similar to those of the official methods under conditions used by the population, the estimated daily intake, of the teas is equivalent to 0.03 to 0.05 mg of nitrate and 0.007 to 0.014 mg of nitrite. These values are in accord with safety recommendations and don't represent a health risk. |
topic |
nitrate nitrite fish skin |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422006000500002&lng=en&tlng=en |
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