<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0034-7418</journal-id>
<journal-title><![CDATA[Revista Colombiana de Ciencias Químico - Farmacéuticas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. colomb. cienc. quim. farm.]]></abbrev-journal-title>
<issn>0034-7418</issn>
<publisher>
<publisher-name><![CDATA[Departamento de Farmácia, Facultad de Ciencias, Universidade Nacional da Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-74182021000100269</article-id>
<article-id pub-id-type="doi">10.15446/rcciquifa.v50n1.95460</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Food nitrates and nitrites as possible causes of cancer: A review]]></article-title>
<article-title xml:lang="es"><![CDATA[Nitratos y nitratos alimentarios como posibles causas de cáncer: una revisión]]></article-title>
<article-title xml:lang="pt"><![CDATA[Nitratos e nitratos dietéticos como possíveis causas de câncer: uma revisão]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Andrade Júnior]]></surname>
<given-names><![CDATA[Francisco Patricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sobreira de Cabral]]></surname>
<given-names><![CDATA[Ana Laura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Dantas de Araújo]]></surname>
<given-names><![CDATA[Januse Míllia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cordeiro]]></surname>
<given-names><![CDATA[Laísa Vilar]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Barros Cândido]]></surname>
<given-names><![CDATA[Marília]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pontes da Silva]]></surname>
<given-names><![CDATA[Alison]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de Medeiros Lima]]></surname>
<given-names><![CDATA[Brenda Tamires]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Braga Dantas]]></surname>
<given-names><![CDATA[Bruna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Federal University of Paraíba  ]]></institution>
<addr-line><![CDATA[João Pessoa Paraíba]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Federal University of Campina Grande  ]]></institution>
<addr-line><![CDATA[Cuité Paraíba]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Federal University of Campina Grande  ]]></institution>
<addr-line><![CDATA[Cuité Paraíba]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2021</year>
</pub-date>
<volume>50</volume>
<numero>1</numero>
<fpage>269</fpage>
<lpage>291</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0034-74182021000100269&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0034-74182021000100269&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0034-74182021000100269&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[SUMMARY  Introduction: Nitrates and nitrites can be found in meat and dairy products, vegetables, and fruits. The consumption of these preservatives has been associated with the emergence of gastric, colorectal cancer and non-Hodgkin's lymphoma, although studies are still inconclusive.  Methodology: It is a review of literature of the narrative type, in which there was a recovery of articles published in English and Portuguese, in the databases SciELO, Lilacs, Science Direct and Capes journals. Articles related to nitrates and nitrites in foods were included, as well as articles that correlated the consumption of these preservatives with the appearance of cancers, regardless of the year of publication, although articles published between the years 2009 to 2019 were prioritized.  Results: Nitrates and nitrites are generally associated with industrialized food products; therefore, it is possible to observe the presence of these salts in a wide variety of foods. The excessive consumption of nitrates and nitrites, whether through water or food, has been associated with a great diversity of diseases, stimulating the development of several studies investigating, including, the correlation between the consumption of these preservatives and the appearance of cancers.  Conclusion: It is observed that nitrates and nitrites form compounds with a carcinogenic potential, making them interesting to avoid excessive consumption of these preservatives.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: Los nitratos y nitritos pueden ser encontrados en carnes y productos lácteos, verduras y frutas. El consumo de estos conservantes ha sido asociado con la aparición de cáncer gástrico, colorrectal y linfoma no Hodgkin, aunque los estudios aún no son concluyentes.  Metodología: Se hizo una revisión de tipo narrativo de la literatura, en la que se recuperaron artículos publicados en inglés y portugués, en las bases de datos SciELO, Lilacs, Science Direct y revistas Capes. Se incluyeron artículos relacionados con nitratos y nitritos en alimentos, así como artículos que correlacionaban el consumo de estos conservantes con la aparición de cánceres, independientemente del año de publicación, aunque se priorizaron artículos publicados entre los años 2009 a 2019.  Resultados: Los nitratos y nitritos se asocian generalmente con productos alimenticios industrializados; por tanto, es posible observar la presencia de estas sales en una amplia variedad de alimentos. El consumo excesivo de nitratos y nitritos, ya sea a través del agua o de los alimentos, se ha asociado a una gran diversidad de enfermedades, estimulando el desarrollo de varios estudios que investigan, entre ellos, la correlación entre el consumo de estos conservantes y la aparición de cánceres.  Conclusión: Así, se observa que los nitratos y nitritos, forman compuestos con potencial carcinogénico, por lo que resulta interesante evitar el consumo excesivo de estos conservantes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[RESUMO  Introdução: Nitratos e nitritos podem ser encontrados em carnes e laticínios, vegetais e frutas. O consumo desses conservantes tem sido associado ao desenvolvimento de câncer gástrico e colorretal e linfoma não Hodgkin, embora os estudos ainda não sejam conclusivos.  Metodologia: Trata-se de uma revisão de literatura do tipo narrativa, na qual houve a recuperação de artigos publicados em inglês e português, nas bases de dados SciELO, Lilacs, Science Direct e Periódicos Capes. Foram incluídos artigos relacionados a nitratos e nitritos em alimentos, bem como artigos que correlacionassem o consumo desses conservantes com o aparecimento de cânceres, independentemente do ano de publicação, embora tenham sido priorizados os artigos publicados entre os anos de 2009 a 2019.  Resultados: Nitratos e nitritos são geralmente associados a produtos alimentícios industrializados; portanto, é possível observar a presença desses sais em uma grande variedade de alimentos. O consumo excessivo de nitratos e nitritos, seja pela água ou pelos alimentos, tem sido associado a uma grande diversidade de doenças, estimulando o desenvolvimento de diversos estudos que investiguem, inclusive, a correlação entre o consumo desses conservantes e o aparecimento de cânceres.  Conclusão: Assim, observa-se que nitratos e nitritos formam compostos com potencial carcinogê-nico, por isso é interessante evitar o consumo excessivo desses conservantes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Preservative]]></kwd>
<kwd lng="en"><![CDATA[carcinogenesis]]></kwd>
<kwd lng="en"><![CDATA[nitrate]]></kwd>
<kwd lng="en"><![CDATA[nitrite]]></kwd>
<kwd lng="es"><![CDATA[Conservantes]]></kwd>
<kwd lng="es"><![CDATA[carcinogénesis]]></kwd>
<kwd lng="es"><![CDATA[nitratos]]></kwd>
<kwd lng="es"><![CDATA[nitritos]]></kwd>
<kwd lng="pt"><![CDATA[Conservantes]]></kwd>
<kwd lng="pt"><![CDATA[carcinogênese]]></kwd>
<kwd lng="pt"><![CDATA[nitratos]]></kwd>
<kwd lng="pt"><![CDATA[nitritos]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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