Assessment of metal content and toxicity of leachates from teapots.
Identifieur interne : 000135 ( PubMed/Curation ); précédent : 000134; suivant : 000136Assessment of metal content and toxicity of leachates from teapots.
Auteurs : A. Boularbah [Maroc] ; G. Bitton ; J L MorelSource :
- The Science of the total environment [ 0048-9697 ] ; 1999.
Descripteurs français
- Wicri :
- geographic : Maroc.
English descriptors
- KwdEn :
- Chromium (adverse effects), Chromium (analysis), Cooking and Eating Utensils, Copper (adverse effects), Copper (analysis), Food Contamination (analysis), Humans, Metals, Heavy (adverse effects), Metals, Heavy (analysis), Morocco, Nickel (adverse effects), Nickel (analysis), Tea (adverse effects), Tea (chemistry), Tin (adverse effects), Tin (analysis), Zinc (adverse effects), Zinc (analysis).
- MESH :
- chemical , adverse effects : Chromium, Copper, Metals, Heavy, Nickel, Tea, Tin, Zinc.
- chemical , analysis : Chromium, Copper, Metals, Heavy, Nickel, Tin, Zinc.
- chemical , chemistry : Tea.
- geographic : Morocco.
- analysis : Food Contamination.
- Cooking and Eating Utensils, Humans.
Abstract
Metallic teapots traditionally used in Morocco were investigated for release of toxic metals from the teapots and their toxicity, as determined by MetPAD, a bacterial toxicity test that is specific for heavy metal toxicity. Our data show that some teapots were non-toxic while a few others were highly toxic, as shown by MetPAD. Tea addition reduced somewhat heavy metal toxicity due possibly to the complexing ability of tea. Chemical analysis of teapot leachates showed that some contained zinc and copper. Teapot No. 5, which showed the highest toxicity, also displayed the highest Zn concentration (7.39 mg/l), confirming the toxicity data. Based on estimates of tea consumption in Morocco, we showed that the extra daily burden of Zn ranged from 1.75 to 4.2 mg/day, assuming the maximum zinc concentration of 7.4 mg/l, as found in our study. This represents 3.5-8% of the LOAEL for zinc of 50 mg/day and would not be important as compared to other sources zinc intake.
PubMed: 10209881
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Bitton</name></author><author><name sortKey="Morel, J L" sort="Morel, J L" uniqKey="Morel J" first="J L" last="Morel">J L Morel</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1999">1999</date><idno type="RBID">pubmed:10209881</idno><idno type="pmid">10209881</idno><idno type="wicri:Area/PubMed/Corpus">000135</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000135</idno><idno type="wicri:Area/PubMed/Curation">000135</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000135</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Assessment of metal content and toxicity of leachates from teapots.</title><author><name sortKey="Boularbah, A" sort="Boularbah, A" uniqKey="Boularbah A" first="A" last="Boularbah">A. Boularbah</name><affiliation wicri:level="1"><nlm:affiliation>Department of Biology, Faculte des Sciences et Techniques, Universite Cadi Ayyad, Marrakech, Morocco.</nlm:affiliation><country xml:lang="fr">Maroc</country><wicri:regionArea>Department of Biology, Faculte des Sciences et Techniques, Universite Cadi Ayyad, Marrakech</wicri:regionArea></affiliation></author><author><name sortKey="Bitton, G" sort="Bitton, G" uniqKey="Bitton G" first="G" last="Bitton">G. Bitton</name></author><author><name sortKey="Morel, J L" sort="Morel, J L" uniqKey="Morel J" first="J L" last="Morel">J L Morel</name></author></analytic><series><title level="j">The Science of the total environment</title><idno type="ISSN">0048-9697</idno><imprint><date when="1999" type="published">1999</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Chromium (adverse effects)</term><term>Chromium (analysis)</term><term>Cooking and Eating Utensils</term><term>Copper (adverse effects)</term><term>Copper (analysis)</term><term>Food Contamination (analysis)</term><term>Humans</term><term>Metals, Heavy (adverse effects)</term><term>Metals, Heavy (analysis)</term><term>Morocco</term><term>Nickel (adverse effects)</term><term>Nickel (analysis)</term><term>Tea (adverse effects)</term><term>Tea (chemistry)</term><term>Tin (adverse effects)</term><term>Tin (analysis)</term><term>Zinc (adverse effects)</term><term>Zinc (analysis)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="adverse effects" xml:lang="en"><term>Chromium</term><term>Copper</term><term>Metals, Heavy</term><term>Nickel</term><term>Tea</term><term>Tin</term><term>Zinc</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Chromium</term><term>Copper</term><term>Metals, Heavy</term><term>Nickel</term><term>Tin</term><term>Zinc</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Tea</term></keywords><keywords scheme="MESH" type="geographic" xml:lang="en"><term>Morocco</term></keywords><keywords scheme="MESH" qualifier="analysis" xml:lang="en"><term>Food Contamination</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Cooking and Eating Utensils</term><term>Humans</term></keywords><keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Maroc</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Metallic teapots traditionally used in Morocco were investigated for release of toxic metals from the teapots and their toxicity, as determined by MetPAD, a bacterial toxicity test that is specific for heavy metal toxicity. Our data show that some teapots were non-toxic while a few others were highly toxic, as shown by MetPAD. Tea addition reduced somewhat heavy metal toxicity due possibly to the complexing ability of tea. Chemical analysis of teapot leachates showed that some contained zinc and copper. Teapot No. 5, which showed the highest toxicity, also displayed the highest Zn concentration (7.39 mg/l), confirming the toxicity data. Based on estimates of tea consumption in Morocco, we showed that the extra daily burden of Zn ranged from 1.75 to 4.2 mg/day, assuming the maximum zinc concentration of 7.4 mg/l, as found in our study. This represents 3.5-8% of the LOAEL for zinc of 50 mg/day and would not be important as compared to other sources zinc intake.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">10209881</PMID><DateCreated><Year>1999</Year><Month>05</Month><Day>17</Day></DateCreated><DateCompleted><Year>1999</Year><Month>05</Month><Day>17</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0048-9697</ISSN><JournalIssue CitedMedium="Print"><Volume>227</Volume><Issue>1</Issue><PubDate><Year>1999</Year><Month>Feb</Month><Day>16</Day></PubDate></JournalIssue><Title>The Science of the total environment</Title><ISOAbbreviation>Sci. Total Environ.</ISOAbbreviation></Journal><ArticleTitle>Assessment of metal content and toxicity of leachates from teapots.</ArticleTitle><Pagination><MedlinePgn>69-72</MedlinePgn></Pagination><Abstract><AbstractText>Metallic teapots traditionally used in Morocco were investigated for release of toxic metals from the teapots and their toxicity, as determined by MetPAD, a bacterial toxicity test that is specific for heavy metal toxicity. Our data show that some teapots were non-toxic while a few others were highly toxic, as shown by MetPAD. Tea addition reduced somewhat heavy metal toxicity due possibly to the complexing ability of tea. Chemical analysis of teapot leachates showed that some contained zinc and copper. Teapot No. 5, which showed the highest toxicity, also displayed the highest Zn concentration (7.39 mg/l), confirming the toxicity data. Based on estimates of tea consumption in Morocco, we showed that the extra daily burden of Zn ranged from 1.75 to 4.2 mg/day, assuming the maximum zinc concentration of 7.4 mg/l, as found in our study. This represents 3.5-8% of the LOAEL for zinc of 50 mg/day and would not be important as compared to other sources zinc intake.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Boularbah</LastName><ForeName>A</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Department of Biology, Faculte des Sciences et Techniques, Universite Cadi Ayyad, Marrakech, Morocco.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Bitton</LastName><ForeName>G</ForeName><Initials>G</Initials></Author><Author ValidYN="Y"><LastName>Morel</LastName><ForeName>J L</ForeName><Initials>JL</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Sci Total Environ</MedlineTA><NlmUniqueID>0330500</NlmUniqueID><ISSNLinking>0048-9697</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D019216">Metals, Heavy</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D013662">Tea</NameOfSubstance></Chemical><Chemical><RegistryNumber>0R0008Q3JB</RegistryNumber><NameOfSubstance UI="D002857">Chromium</NameOfSubstance></Chemical><Chemical><RegistryNumber>7440-31-5</RegistryNumber><NameOfSubstance UI="D014001">Tin</NameOfSubstance></Chemical><Chemical><RegistryNumber>789U1901C5</RegistryNumber><NameOfSubstance UI="D003300">Copper</NameOfSubstance></Chemical><Chemical><RegistryNumber>7OV03QG267</RegistryNumber><NameOfSubstance UI="D009532">Nickel</NameOfSubstance></Chemical><Chemical><RegistryNumber>J41CSQ7QDS</RegistryNumber><NameOfSubstance UI="D015032">Zinc</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D002857" MajorTopicYN="N">Chromium</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003297" MajorTopicYN="Y">Cooking and Eating Utensils</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D003300" MajorTopicYN="N">Copper</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D005506" MajorTopicYN="N">Food Contamination</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006801" MajorTopicYN="N">Humans</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019216" MajorTopicYN="N">Metals, Heavy</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D009018" MajorTopicYN="N" Type="Geographic">Morocco</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009532" MajorTopicYN="N">Nickel</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013662" MajorTopicYN="N">Tea</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D014001" MajorTopicYN="N">Tin</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D015032" MajorTopicYN="N">Zinc</DescriptorName><QualifierName UI="Q000009" MajorTopicYN="N">adverse effects</QualifierName><QualifierName UI="Q000032" MajorTopicYN="N">analysis</QualifierName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>1999</Year><Month>4</Month><Day>21</Day></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>1999</Year><Month>4</Month><Day>21</Day><Hour>0</Hour><Minute>1</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>1999</Year><Month>4</Month><Day>21</Day><Hour>0</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">10209881</ArticleId><ArticleId IdType="pii">S0048969799000054</ArticleId></ArticleIdList></PubmedData></pubmed></record>Pour manipuler ce document sous Unix (Dilib)
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