Antimicrobial and Barrier Properties of LDPE Films Containing Imazalil and EDTA
Imazalil and ethylenediamine-tetraacetic acid (EDTA) were incorporated into low-density polyethylene (LDPE) aimed at producing antimicrobial packaging films for foodstuffs. Moulded plates (thickness 2mm) containing 5% of EDTA inhibited Bacillus subtilis, whereas 0.05–0.25% of imazalil had strong act...
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| Veröffentlicht in: | Journal of plastic film & sheeting 2003-10, Vol.19 (4), p.249-261 |
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| creator | Vartiainen, Jari Skytta, Eija Ahvenainen-Rantala, Raija Enqvist, Jouni |
| description | Imazalil and ethylenediamine-tetraacetic acid (EDTA) were incorporated into low-density polyethylene (LDPE) aimed at producing antimicrobial packaging films for foodstuffs. Moulded plates (thickness 2mm) containing 5% of EDTA inhibited Bacillus subtilis, whereas 0.05–0.25% of imazalil had strong activity against Aspergillus niger. Further tests for antimicrobial activity, migration and oxygen and water vapor barrier properties were carried out using biaxially stretched LDPE films containing different combinations of both substances. The addition of imazalil and EDTA increased the oxygen transmission rates and water vapor permeabilities, although the effects with imazalil films were not as significant. Transparency of the EDTA containing films decreased rapidly as a function of added EDTA, whereas imazalil films were optically faultless. Total migration into 3% acetic acid and 10% ethanol was below 4 mg/dm2. Although imazalil retained its activity against A. niger on a high level (inhibition zones >30 mm), the activity of EDTA was gone. None of the samples inhibited Escherichia coli. |
| doi_str_mv | 10.1177/8756087903042808 |
| format | Article |
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Moulded plates (thickness 2mm) containing 5% of EDTA inhibited Bacillus subtilis, whereas 0.05–0.25% of imazalil had strong activity against Aspergillus niger. Further tests for antimicrobial activity, migration and oxygen and water vapor barrier properties were carried out using biaxially stretched LDPE films containing different combinations of both substances. The addition of imazalil and EDTA increased the oxygen transmission rates and water vapor permeabilities, although the effects with imazalil films were not as significant. Transparency of the EDTA containing films decreased rapidly as a function of added EDTA, whereas imazalil films were optically faultless. Total migration into 3% acetic acid and 10% ethanol was below 4 mg/dm2. Although imazalil retained its activity against A. niger on a high level (inhibition zones >30 mm), the activity of EDTA was gone. 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Moulded plates (thickness 2mm) containing 5% of EDTA inhibited Bacillus subtilis, whereas 0.05–0.25% of imazalil had strong activity against Aspergillus niger. Further tests for antimicrobial activity, migration and oxygen and water vapor barrier properties were carried out using biaxially stretched LDPE films containing different combinations of both substances. The addition of imazalil and EDTA increased the oxygen transmission rates and water vapor permeabilities, although the effects with imazalil films were not as significant. Transparency of the EDTA containing films decreased rapidly as a function of added EDTA, whereas imazalil films were optically faultless. Total migration into 3% acetic acid and 10% ethanol was below 4 mg/dm2. Although imazalil retained its activity against A. niger on a high level (inhibition zones >30 mm), the activity of EDTA was gone. None of the samples inhibited Escherichia coli.</description><subject>Applied sciences</subject><subject>Aspergillus niger</subject><subject>Bacillus subtilis</subject><subject>Escherichia coli</subject><subject>Exact sciences and technology</subject><subject>Forms of application and semi-finished materials</subject><subject>Polymer industry, paints, wood</subject><subject>Sheets and films</subject><subject>Technology of polymers</subject><issn>8756-0879</issn><issn>1530-8014</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqFkTtPwzAUhS0EEqWwM3oBpoCfsTOWPqBSpXYoc-QkduUqcYqdDvDrcZRKSEjAdIfznXNfANxi9IixEE9S8BRJkSGKGJFInoER5hQlEmF2Dka9nPT6JbgKYY8QFpzyEVhPXGcbW_q2sKqGylXwWXlvtYcb3x6076wOsDVwNdvM4cLWTYDT1nXKOut2cNmoT1XbwTifbSfX4MKoOuibUx2Dt8V8O31NVuuX5XSySkqGWJdQXhQ4JWXBqCSVSUklBJU6RRkysqg4oWVEZMG4UlimpsJEU1RkitKMG83oGDwMuQffvh916PLGhlLXtXK6PYZccBa35yn9n2Q0tpWMRPL-T5IImWWS9yAawHi2ELw2-cHbRvmPHKO8_0b-8xvRcnfKVqFUtfHKlTZ8-7hAcWIRuWTggtrpfN8evYtn_D33CxuBlAg</recordid><startdate>20031001</startdate><enddate>20031001</enddate><creator>Vartiainen, Jari</creator><creator>Skytta, Eija</creator><creator>Ahvenainen-Rantala, Raija</creator><creator>Enqvist, Jouni</creator><general>SAGE Publications</general><general>Technomic</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7T7</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20031001</creationdate><title>Antimicrobial and Barrier Properties of LDPE Films Containing Imazalil and EDTA</title><author>Vartiainen, Jari ; Skytta, Eija ; Ahvenainen-Rantala, Raija ; Enqvist, Jouni</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c404t-35bb162cb4382df62d7738e6090f8bd523c35b8b45aa186fd12e30b9a3395fe43</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Applied sciences</topic><topic>Aspergillus niger</topic><topic>Bacillus subtilis</topic><topic>Escherichia coli</topic><topic>Exact sciences and technology</topic><topic>Forms of application and semi-finished materials</topic><topic>Polymer industry, paints, wood</topic><topic>Sheets and films</topic><topic>Technology of polymers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vartiainen, Jari</creatorcontrib><creatorcontrib>Skytta, Eija</creatorcontrib><creatorcontrib>Ahvenainen-Rantala, Raija</creatorcontrib><creatorcontrib>Enqvist, Jouni</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Journal of plastic film & sheeting</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vartiainen, Jari</au><au>Skytta, Eija</au><au>Ahvenainen-Rantala, Raija</au><au>Enqvist, Jouni</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Antimicrobial and Barrier Properties of LDPE Films Containing Imazalil and EDTA</atitle><jtitle>Journal of plastic film & sheeting</jtitle><date>2003-10-01</date><risdate>2003</risdate><volume>19</volume><issue>4</issue><spage>249</spage><epage>261</epage><pages>249-261</pages><issn>8756-0879</issn><eissn>1530-8014</eissn><coden>JPFSEH</coden><abstract>Imazalil and ethylenediamine-tetraacetic acid (EDTA) were incorporated into low-density polyethylene (LDPE) aimed at producing antimicrobial packaging films for foodstuffs. Moulded plates (thickness 2mm) containing 5% of EDTA inhibited Bacillus subtilis, whereas 0.05–0.25% of imazalil had strong activity against Aspergillus niger. Further tests for antimicrobial activity, migration and oxygen and water vapor barrier properties were carried out using biaxially stretched LDPE films containing different combinations of both substances. The addition of imazalil and EDTA increased the oxygen transmission rates and water vapor permeabilities, although the effects with imazalil films were not as significant. Transparency of the EDTA containing films decreased rapidly as a function of added EDTA, whereas imazalil films were optically faultless. Total migration into 3% acetic acid and 10% ethanol was below 4 mg/dm2. Although imazalil retained its activity against A. niger on a high level (inhibition zones >30 mm), the activity of EDTA was gone. None of the samples inhibited Escherichia coli.</abstract><cop>Lancaster, PA</cop><pub>SAGE Publications</pub><doi>10.1177/8756087903042808</doi><tpages>13</tpages></addata></record> |
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| subjects | Applied sciences Aspergillus niger Bacillus subtilis Escherichia coli Exact sciences and technology Forms of application and semi-finished materials Polymer industry, paints, wood Sheets and films Technology of polymers |
| title | Antimicrobial and Barrier Properties of LDPE Films Containing Imazalil and EDTA |
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