Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan

Jari Vartiainen (Corresponding Author), Marjaana Rättö, Unto Tapper, Sabine Paulussen, Eero Hurme

Research output: Contribution to journalArticleScientificpeer-review

43 Citations (Scopus)

Abstract

Chitosan was immobilized onto plasma activated biaxially oriented polypropylene (BOPP) films aimed at producing antimicrobially active barrier film for food packaging applications. 1% chitosan dissolved into 0.1 M acetic acid was mixed with 0.1% glutaraldehyde (cross-linking agent) and applied onto N2-plasma + NH3 activated BOPP film. Amount of immobilized chitosan was 1.8 g/m2. Films had strong antimicrobial activity against both Bacillus subtilis and Escherichia coli and they reduced the oxygen transmission rate (OTR) measured in dry conditions from 1500 down to 27 cm3/(m2·24 h). Migration tests for determining the total amounts of substances migrating into food simulants (3% acetic acid, 95% ethanol and iso-octane) indicated, that chitosan coating was permanently immobilized onto BOPP without any leaching (total migration < 2 mg/dm2), thus it met the requirements stipulated in Directive 2002/72/EC relating to plastic materials and articles intended to come into contact with foodstuffs. The results suggest that chitosan treated BOPP films may be exploited in various food packaging applications requiring high oxygen barrier and/or antimicrobially active packaging materials.
Original languageEnglish
Pages (from-to)343 - 352
Number of pages10
JournalPolymer Bulletin
Volume54
Issue number4-5
DOIs
Publication statusPublished - 2005
MoE publication typeA1 Journal article-refereed

Fingerprint

Polypropylenes
Chitosan
polypropylene
Surface treatment
Plasmas
food
packaging
acetic acid
Acetic acid
Acetic Acid
Packaging
Oxygen
Packaging materials
Bacillus
Glutaral
octanes
oxygen
Bacilli
leaching
Escherichia

Keywords

  • chitosan
  • food packaging
  • packaging materials
  • antimicrobials

Cite this

Vartiainen, Jari ; Rättö, Marjaana ; Tapper, Unto ; Paulussen, Sabine ; Hurme, Eero. / Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan. In: Polymer Bulletin. 2005 ; Vol. 54, No. 4-5. pp. 343 - 352.
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title = "Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan",
abstract = "Chitosan was immobilized onto plasma activated biaxially oriented polypropylene (BOPP) films aimed at producing antimicrobially active barrier film for food packaging applications. 1{\%} chitosan dissolved into 0.1 M acetic acid was mixed with 0.1{\%} glutaraldehyde (cross-linking agent) and applied onto N2-plasma + NH3 activated BOPP film. Amount of immobilized chitosan was 1.8 g/m2. Films had strong antimicrobial activity against both Bacillus subtilis and Escherichia coli and they reduced the oxygen transmission rate (OTR) measured in dry conditions from 1500 down to 27 cm3/(m2·24 h). Migration tests for determining the total amounts of substances migrating into food simulants (3{\%} acetic acid, 95{\%} ethanol and iso-octane) indicated, that chitosan coating was permanently immobilized onto BOPP without any leaching (total migration < 2 mg/dm2), thus it met the requirements stipulated in Directive 2002/72/EC relating to plastic materials and articles intended to come into contact with foodstuffs. The results suggest that chitosan treated BOPP films may be exploited in various food packaging applications requiring high oxygen barrier and/or antimicrobially active packaging materials.",
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Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan. / Vartiainen, Jari (Corresponding Author); Rättö, Marjaana; Tapper, Unto; Paulussen, Sabine; Hurme, Eero.

In: Polymer Bulletin, Vol. 54, No. 4-5, 2005, p. 343 - 352.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Surface modification of atmospheric plasma activated BOPP by immobilizing chitosan

AU - Vartiainen, Jari

AU - Rättö, Marjaana

AU - Tapper, Unto

AU - Paulussen, Sabine

AU - Hurme, Eero

PY - 2005

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N2 - Chitosan was immobilized onto plasma activated biaxially oriented polypropylene (BOPP) films aimed at producing antimicrobially active barrier film for food packaging applications. 1% chitosan dissolved into 0.1 M acetic acid was mixed with 0.1% glutaraldehyde (cross-linking agent) and applied onto N2-plasma + NH3 activated BOPP film. Amount of immobilized chitosan was 1.8 g/m2. Films had strong antimicrobial activity against both Bacillus subtilis and Escherichia coli and they reduced the oxygen transmission rate (OTR) measured in dry conditions from 1500 down to 27 cm3/(m2·24 h). Migration tests for determining the total amounts of substances migrating into food simulants (3% acetic acid, 95% ethanol and iso-octane) indicated, that chitosan coating was permanently immobilized onto BOPP without any leaching (total migration < 2 mg/dm2), thus it met the requirements stipulated in Directive 2002/72/EC relating to plastic materials and articles intended to come into contact with foodstuffs. The results suggest that chitosan treated BOPP films may be exploited in various food packaging applications requiring high oxygen barrier and/or antimicrobially active packaging materials.

AB - Chitosan was immobilized onto plasma activated biaxially oriented polypropylene (BOPP) films aimed at producing antimicrobially active barrier film for food packaging applications. 1% chitosan dissolved into 0.1 M acetic acid was mixed with 0.1% glutaraldehyde (cross-linking agent) and applied onto N2-plasma + NH3 activated BOPP film. Amount of immobilized chitosan was 1.8 g/m2. Films had strong antimicrobial activity against both Bacillus subtilis and Escherichia coli and they reduced the oxygen transmission rate (OTR) measured in dry conditions from 1500 down to 27 cm3/(m2·24 h). Migration tests for determining the total amounts of substances migrating into food simulants (3% acetic acid, 95% ethanol and iso-octane) indicated, that chitosan coating was permanently immobilized onto BOPP without any leaching (total migration < 2 mg/dm2), thus it met the requirements stipulated in Directive 2002/72/EC relating to plastic materials and articles intended to come into contact with foodstuffs. The results suggest that chitosan treated BOPP films may be exploited in various food packaging applications requiring high oxygen barrier and/or antimicrobially active packaging materials.

KW - chitosan

KW - food packaging

KW - packaging materials

KW - antimicrobials

U2 - 10.1007/s00289-005-0382-5

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JO - Polymer Bulletin

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