کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
19814 43131 2016 5 صفحه PDF ندارد دانلود رایگان
عنوان انگلیسی مقاله
Assessment of gas permeability of the whole packaging system mimicking industrial conditions
ترجمه فارسی عنوان
ارزیابی نفوذپذیری گاز از سیستم بسته بندی طیف تقلید شرایط صنعتی
کلمات کلیدی
بسته بندی غذا؛ نفوذ پذیری؛ صنعتی مانند شرایط؛ تاثیر آب بندی
Food packaging; Permeability; Industrial-like conditions; Sealing impact
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
چکیده انگلیسی


• Packaging permeability is measured mimicking industrial condition.
• CO2 permeability was significantly higher when measured in industrial condition.
• Shrinking and hot sealing operation impact packaging permeability to gases.

Assessing gas permeation of the whole food packaging in industrial conditions (RH, temperature including stretching and sealing effect) is fundamental for predicting the quality changes of packed food during processing and shelf life. Permeability coefficients are usually assessed on a small flat, piece of packaging material which is not representative of the whole pack (usually assembly of tray + lid film or pouches of flexible films sealed on at least 2 or 3 sides) used in the industry. Moreover, conditions used are standardised (temperature of 23 °C, 0%RH) which are not representative of conditions that prevail in real use. This simplified approach may lead to erroneous mass transfer predictions when simplified permeability values are used in calculation. To face this problem, we propose a simple methodology for the assessment of the gas permeability coefficients (N2, CO2, O2) in sealed intact large scale (industrial) packaging (whole packaging) in conditions of temp and RH mimicking the real conditions of use (encountered by the material in contact with the food product). The CO2 permeability assessed in the industrial-like conditions was significantly higher compared to the one assessed with standard method. The higher gas permeation measured was ascribed to the impact of industrial operations such as shrinking and hot sealing. Our results highlight the necessity to better characterize impacts of industrial conditions such as hot sealing and shrinking on the permeability of the whole pack when prediction of gas permeation through packaging during food processing is needed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Packaging and Shelf Life - Volume 8, June 2016, Pages 81–85
نویسندگان
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