Packaging Technology and Science

Cover image for Vol. 27 Issue 10

October 2014

Volume 27, Issue 10

Pages 763–838

  1. Research Articles

    1. Top of page
    2. Research Articles
    3. Short Communication
    1. Hydrophobic Zeolite-Filled Polymeric Films with High Ethylene Permselectivity for Fresh Produce Packaging Applications (pages 763–773)

      Asira Fuongfuchat, Doungporn Sirikittikul, Warintorn Booncharoen, Phatchareeya Raksa, Chonlada Ritvirulh and Tawan Sooknoi

      Article first published online: 19 FEB 2014 | DOI: 10.1002/pts.2066

      Thumbnail image of graphical abstract

      Gas permselective plastic films have been in a great deal of attention in the area of modified atmosphere packaging of fresh produces; thus, in this study, the films with high ethylene permselectivity were developed and fabricated by blown film extrusion. Particularly high ethylene permselectivity was obtained from the films containing phenyl-grafted zeolites. An improvement of particle-polymer interface and interactions between double bonds of the phenyl group and ethylene gas may facilitate ethylene gas transports.

    2. A Better Posture Strategy for Fingertip Force and Finger Coordination during a Daily Activity (pages 775–785)

      Chen-Yu Huang and Fong-Chin Su

      Article first published online: 28 APR 2014 | DOI: 10.1002/pts.2068

      Thumbnail image of graphical abstract

      This study found a better posture strategy for the young subjects to open a jar with the off-table posture while sitting, and this was also the best opening posture when comparing the overall torque in this work with that reported in previous studies, no matter whether subjects were standing or sitting, or whatever type of finger group was defined. However, the effect of grasp type and the middle, ring and little fingertip forces needs to be clarified in future studies.

    3. Migration Processes of Metal Elements from Carbon Steel Cylinders to Food Gases (pages 787–797)

      Franco Tassi, Francesco Capecchiacci and Orlando Vaselli

      Article first published online: 19 FEB 2014 | DOI: 10.1002/pts.2069

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      This study presents a protocol for sampling and analysis of metal elements migrating from carbon steel cylinders to CO2, N2 and O2 employed by food and beverage industries, based on the use of an acidified trapping solution coupled with inductively coupled plasma mass spectrometry analysis. Our tests show that the concentrations of metallic elements (e.g. Al, Fe, Ni and Zn) as a result of migration processes occurring in 5 years are too low to significantly affect the quality of food gases.

    4. Properties of Transglutaminase Crosslinked Whey Protein Isolate Coatings and Cast Films (pages 799–817)

      Markus Schmid, Sven Sängerlaub, Laura Wege and Andreas Stäbler

      Article first published online: 14 APR 2014 | DOI: 10.1002/pts.2071

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      Transglutaminase crosslinks whey protein and reduces thereby the diffusivity for water vapour and oxygen.

    5. Flexographic Printing of Trametes versicolor Laccase for Indicator Applications (pages 819–830)

      Heini Virtanen, Kaisa Vehmas, Tomi Erho and Maria Smolander

      Article first published online: 1 APR 2014 | DOI: 10.1002/pts.2073

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      Trametes versicolor laccase was successfully printed with flexographic press in laboratory scale and laccase was active on copy paper and EUCA paper after printing. Laccase paper changed colour to green rapidly after adding or printing of ABTS solutions and its use as authenticity and as oxygen leakage indicator in package was demonstrated. Printing would allow large scale manufacturing of this kind of enzyme-based indicators.

  2. Short Communication

    1. Top of page
    2. Research Articles
    3. Short Communication
    1. Influence of Pullulan-Based Edible Coating on Some Quality Properties of Strawberry During Cold Storage (pages 831–838)

      Emrah Eroglu, Mehmet Torun, Cuneyt Dincer and Ayhan Topuz

      Article first published online: 14 APR 2014 | DOI: 10.1002/pts.2077

      Thumbnail image of graphical abstract

      The present study aimed to improve strawberry quality and extend its shelf life under cold storage with pullulan-based coating. The coatings delayed mould formation and decreased weight loss, softening and degradation of ascorbic acid and carotenoids in the fruits. Coating with a 10% pullulan-based emulsion successfully extended the shelf life of the strawberries for 5 days longer under cold storage conditions.