Antimicrobial beeswax coated polylactide films with silver control release capacity.
Identifieur interne : 000871 ( Main/Corpus ); précédent : 000870; suivant : 000872Antimicrobial beeswax coated polylactide films with silver control release capacity.
Auteurs : Antonio Martínez-Abad ; Jose Maria Lagar N ; María Jose OcioSource :
- International journal of food microbiology [ 1879-3460 ] ; 2014.
English descriptors
- KwdEn :
- Anti-Bacterial Agents (chemistry), Anti-Bacterial Agents (pharmacology), Delayed-Action Preparations (chemistry), Delayed-Action Preparations (pharmacology), Delayed-Action Preparations (standards), Food Packaging (methods), Food Packaging (standards), Hydrogen-Ion Concentration (MeSH), Lactic Acid (chemistry), Polyesters (MeSH), Polymers (chemistry), Salmonella enterica (drug effects), Silver (chemistry), Silver (pharmacology), Steam (MeSH), Waxes (chemistry).
- MESH :
- chemical , chemistry : Anti-Bacterial Agents, Delayed-Action Preparations, Lactic Acid, Polymers, Silver, Waxes.
- chemical , pharmacology : Anti-Bacterial Agents, Delayed-Action Preparations, Silver.
- chemical , standards : Delayed-Action Preparations.
- drug effects : Salmonella enterica.
- methods : Food Packaging.
- standards : Food Packaging.
- Hydrogen-Ion Concentration, Polyesters, Steam.
Abstract
Although the application of silver based antimicrobial systems is a widespread technology, its implementation in areas such as food packaging is still challenging. The present paper describes the fabrication of poly(lactic acid) (PLA) coated with beeswax with controlled release properties for sustained antimicrobial performance. Release of silver ions from the polymers was monitored voltammetrically under various conditions (surface contact, immersion in various liquid media and at different pH values) throughout at least 7days. A higher release was noted with decreasing pH while surface release was much slower than the release when immersed in liquid medium. While uncoated films demonstrated a high burst release which in some instances implied surpassing some current migration restrictions (<0.05mg/kg food), the addition of a beeswax layer allowed a sustained release of the antimicrobial compound. Increasing the thickness of the beeswax layer resulted in an increase in the water barrier properties of the films while reducing the relatively constant values of sustained release. Antimicrobial performance was correlated with the release of silver ions, indicating threshold concentrations for biocide action of <6μg/L and 9-14μg/L for surface contact and in liquid media, respectively. Either by surface contact or by immersion in growth medium or vegetable soup, the coated films displayed a strong bactericidal effect against Salmonella enterica. The application of this functional barrier thus offers the possibility of tuning the release profiles of the films to suit a specific application and puts forth the possible suitability of these materials for food packaging or other migration sensitive applications.
DOI: 10.1016/j.ijfoodmicro.2013.12.028
PubMed: 24448276
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pubmed:24448276Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Antimicrobial beeswax coated polylactide films with silver control release capacity.</title><author><name sortKey="Martinez Abad, Antonio" sort="Martinez Abad, Antonio" uniqKey="Martinez Abad A" first="Antonio" last="Martínez-Abad">Antonio Martínez-Abad</name><affiliation><nlm:affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain.</nlm:affiliation></affiliation></author><author><name sortKey="Lagar N, Jose Maria" sort="Lagar N, Jose Maria" uniqKey="Lagar N J" first="Jose Maria" last="Lagar N">Jose Maria Lagar N</name><affiliation><nlm:affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain.</nlm:affiliation></affiliation></author><author><name sortKey="Ocio, Maria Jose" sort="Ocio, Maria Jose" uniqKey="Ocio M" first="María Jose" last="Ocio">María Jose Ocio</name><affiliation><nlm:affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain; Dept. Prev Med, Faculty of Pharmacy, Univ. of Valencia, 46100 Burjassot, Spain. Electronic address: ajo@iata.csic.es.</nlm:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2014">2014</date><idno type="RBID">pubmed:24448276</idno><idno type="pmid">24448276</idno><idno type="doi">10.1016/j.ijfoodmicro.2013.12.028</idno><idno type="wicri:Area/Main/Corpus">000871</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000871</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Antimicrobial beeswax coated polylactide films with silver control release capacity.</title><author><name sortKey="Martinez Abad, Antonio" sort="Martinez Abad, Antonio" uniqKey="Martinez Abad A" first="Antonio" last="Martínez-Abad">Antonio Martínez-Abad</name><affiliation><nlm:affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain.</nlm:affiliation></affiliation></author><author><name sortKey="Lagar N, Jose Maria" sort="Lagar N, Jose Maria" uniqKey="Lagar N J" first="Jose Maria" last="Lagar N">Jose Maria Lagar N</name><affiliation><nlm:affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain.</nlm:affiliation></affiliation></author><author><name sortKey="Ocio, Maria Jose" sort="Ocio, Maria Jose" uniqKey="Ocio M" first="María Jose" last="Ocio">María Jose Ocio</name><affiliation><nlm:affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain; Dept. Prev Med, Faculty of Pharmacy, Univ. of Valencia, 46100 Burjassot, Spain. Electronic address: ajo@iata.csic.es.</nlm:affiliation></affiliation></author></analytic><series><title level="j">International journal of food microbiology</title><idno type="eISSN">1879-3460</idno><imprint><date when="2014" type="published">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anti-Bacterial Agents (chemistry)</term><term>Anti-Bacterial Agents (pharmacology)</term><term>Delayed-Action Preparations (chemistry)</term><term>Delayed-Action Preparations (pharmacology)</term><term>Delayed-Action Preparations (standards)</term><term>Food Packaging (methods)</term><term>Food Packaging (standards)</term><term>Hydrogen-Ion Concentration (MeSH)</term><term>Lactic Acid (chemistry)</term><term>Polyesters (MeSH)</term><term>Polymers (chemistry)</term><term>Salmonella enterica (drug effects)</term><term>Silver (chemistry)</term><term>Silver (pharmacology)</term><term>Steam (MeSH)</term><term>Waxes (chemistry)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Anti-Bacterial Agents</term><term>Delayed-Action Preparations</term><term>Lactic Acid</term><term>Polymers</term><term>Silver</term><term>Waxes</term></keywords><keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Anti-Bacterial Agents</term><term>Delayed-Action Preparations</term><term>Silver</term></keywords><keywords scheme="MESH" type="chemical" qualifier="standards" xml:lang="en"><term>Delayed-Action Preparations</term></keywords><keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Salmonella enterica</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Food Packaging</term></keywords><keywords scheme="MESH" qualifier="standards" xml:lang="en"><term>Food Packaging</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Hydrogen-Ion Concentration</term><term>Polyesters</term><term>Steam</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Although the application of silver based antimicrobial systems is a widespread technology, its implementation in areas such as food packaging is still challenging. The present paper describes the fabrication of poly(lactic acid) (PLA) coated with beeswax with controlled release properties for sustained antimicrobial performance. Release of silver ions from the polymers was monitored voltammetrically under various conditions (surface contact, immersion in various liquid media and at different pH values) throughout at least 7days. A higher release was noted with decreasing pH while surface release was much slower than the release when immersed in liquid medium. While uncoated films demonstrated a high burst release which in some instances implied surpassing some current migration restrictions (<0.05mg/kg food), the addition of a beeswax layer allowed a sustained release of the antimicrobial compound. Increasing the thickness of the beeswax layer resulted in an increase in the water barrier properties of the films while reducing the relatively constant values of sustained release. Antimicrobial performance was correlated with the release of silver ions, indicating threshold concentrations for biocide action of <6μg/L and 9-14μg/L for surface contact and in liquid media, respectively. Either by surface contact or by immersion in growth medium or vegetable soup, the coated films displayed a strong bactericidal effect against Salmonella enterica. The application of this functional barrier thus offers the possibility of tuning the release profiles of the films to suit a specific application and puts forth the possible suitability of these materials for food packaging or other migration sensitive applications. </div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" IndexingMethod="Curated" Owner="NLM"><PMID Version="1">24448276</PMID><DateCompleted><Year>2014</Year><Month>03</Month><Day>28</Day></DateCompleted><DateRevised><Year>2018</Year><Month>10</Month><Day>25</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1879-3460</ISSN><JournalIssue CitedMedium="Internet"><Volume>174</Volume><PubDate><Year>2014</Year><Month>Mar</Month><Day>17</Day></PubDate></JournalIssue><Title>International journal of food microbiology</Title><ISOAbbreviation>Int J Food Microbiol</ISOAbbreviation></Journal><ArticleTitle>Antimicrobial beeswax coated polylactide films with silver control release capacity.</ArticleTitle><Pagination><MedlinePgn>39-46</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.ijfoodmicro.2013.12.028</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0168-1605(13)00605-3</ELocationID><Abstract><AbstractText>Although the application of silver based antimicrobial systems is a widespread technology, its implementation in areas such as food packaging is still challenging. The present paper describes the fabrication of poly(lactic acid) (PLA) coated with beeswax with controlled release properties for sustained antimicrobial performance. Release of silver ions from the polymers was monitored voltammetrically under various conditions (surface contact, immersion in various liquid media and at different pH values) throughout at least 7days. A higher release was noted with decreasing pH while surface release was much slower than the release when immersed in liquid medium. While uncoated films demonstrated a high burst release which in some instances implied surpassing some current migration restrictions (<0.05mg/kg food), the addition of a beeswax layer allowed a sustained release of the antimicrobial compound. Increasing the thickness of the beeswax layer resulted in an increase in the water barrier properties of the films while reducing the relatively constant values of sustained release. Antimicrobial performance was correlated with the release of silver ions, indicating threshold concentrations for biocide action of <6μg/L and 9-14μg/L for surface contact and in liquid media, respectively. Either by surface contact or by immersion in growth medium or vegetable soup, the coated films displayed a strong bactericidal effect against Salmonella enterica. The application of this functional barrier thus offers the possibility of tuning the release profiles of the films to suit a specific application and puts forth the possible suitability of these materials for food packaging or other migration sensitive applications. </AbstractText><CopyrightInformation>Copyright © 2013 Elsevier B.V. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Martínez-Abad</LastName><ForeName>Antonio</ForeName><Initials>A</Initials><AffiliationInfo><Affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Lagarón</LastName><ForeName>Jose Maria</ForeName><Initials>JM</Initials><AffiliationInfo><Affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Ocio</LastName><ForeName>María Jose</ForeName><Initials>MJ</Initials><AffiliationInfo><Affiliation>Novel Materials and Nanotechnology Group, IATA, CSIC, 46980 Paterna, Spain; Dept. Prev Med, Faculty of Pharmacy, Univ. of Valencia, 46100 Burjassot, Spain. Electronic address: ajo@iata.csic.es.</Affiliation></AffiliationInfo></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013485">Research Support, Non-U.S. Gov't</PublicationType></PublicationTypeList><ArticleDate DateType="Electronic"><Year>2014</Year><Month>01</Month><Day>04</Day></ArticleDate></Article><MedlineJournalInfo><Country>Netherlands</Country><MedlineTA>Int J Food Microbiol</MedlineTA><NlmUniqueID>8412849</NlmUniqueID><ISSNLinking>0168-1605</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D000900">Anti-Bacterial Agents</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D003692">Delayed-Action Preparations</NameOfSubstance></Chemical><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance 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MajorTopicYN="N">Anti-Bacterial Agents</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D003692" MajorTopicYN="N">Delayed-Action Preparations</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="N">chemistry</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName><QualifierName UI="Q000592" MajorTopicYN="N">standards</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D018857" MajorTopicYN="N">Food Packaging</DescriptorName><QualifierName UI="Q000379" MajorTopicYN="Y">methods</QualifierName><QualifierName UI="Q000592" MajorTopicYN="N">standards</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D006863" MajorTopicYN="N">Hydrogen-Ion Concentration</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D019344" MajorTopicYN="N">Lactic Acid</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D011091" MajorTopicYN="N">Polyesters</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D011108" MajorTopicYN="N">Polymers</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D019779" MajorTopicYN="N">Salmonella enterica</DescriptorName><QualifierName UI="Q000187" MajorTopicYN="N">drug effects</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012834" MajorTopicYN="N">Silver</DescriptorName><QualifierName UI="Q000737" MajorTopicYN="Y">chemistry</QualifierName><QualifierName UI="Q000494" MajorTopicYN="N">pharmacology</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D013227" MajorTopicYN="N">Steam</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D014885" MajorTopicYN="N">Waxes</DescriptorName><QualifierName UI="Q000737" 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