Nanoscale, zero valent iron particles for application as oxygen scavenger in food packaging

Zenon Foltynowicz , Alexander Bardenshtein , Sven Sängerlaub , Helle Antvorskov , Wojciech Kozak

Abstract

Oxygen scavengers which are based on oxidation of iron powder dispersed in a polymer matrix are established in the packaging industry. They protect foods from oxygen. The iron particles have a diameter of several micrometers, which is too high to allow thin layers in multilayer film structures. A promising alternative is a developed nanoscale oxygen scavenger which is subject of this study. The aim of this study was to evaluate the oxygen absorption rate and the oxygen absorption capacity of nanoscale iron at 100% relative humidity and at dry conditions. Nanoscale oxygen scavengers (zero valent iron particles) were synthesized. Their reactivity was tested. Furthermore, they were blended with a silicone matrix. The nanoscale oxygen scavenger absorbed oxygen in wet (100% relative humidity) and dry conditions. At 100% relative humidity the reaction rate of the powder was two to three times higher compared to non-nanoscale iron powder. The absorption rate of the nanoscale i ron dispersed in a silicon carrier was at least ten times higher at 100% relative humidity compared to a commercially available iron based oxygen scavenger in a polyethylene or polypropylene polymer matrix.
Author Zenon Foltynowicz (WT / KTiEPP)
Zenon Foltynowicz,,
- Department of Industrial Products and Ecology
, Alexander Bardenshtein - Danish Technological Institute, Materials, Packaging and Logistics, Taastrup, Denmark
Alexander Bardenshtein,,
-
, Sven Sängerlaub - Fraunhofer Institute for Process Engineering and Packaging IVV, Freising, Germany
Sven Sängerlaub,,
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, Helle Antvorskov - Danish Technological Institute, Materials, Packaging and Logistics, Taastrup, Denmark
Helle Antvorskov,,
-
, Wojciech Kozak (WT / KTiEPP)
Wojciech Kozak,,
- Department of Industrial Products and Ecology
Journal seriesFood Packaging and Shelf Life, ISSN 2214-2894, (0 pkt)
Issue year2017
Vol11
Pages74-83
Publication size in sheets0.5
Keywords in EnglishNanoparticle, Oxidation, Core-shell nanoparticle, Active packaging
ASJC Classification2726 Microbiology (medical); 1106 Food Science; 2213 Safety, Risk, Reliability and Quality; 2502 Biomaterials; 2507 Polymers and Plastics
DOIDOI:10.1016/j.fpsl.2017.01.003
Languageen angielski
Score (nominal)15
Score sourcejournalIndex
ScoreMinisterial score = 15.0, 17-03-2020, ArticleFromJournal
Publication indicators WoS Citations = 8; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.554; WoS Impact Factor: 2017 = 3.347 (2)
Citation count*23 (2020-09-12)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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