Journal of Food Science and Technology

, Volume 50, Issue 2, pp 409–411 | Cite as

Effect of different types of plastic packaging films on the moisture and aflatoxin contents of pistachio nuts during storage

  • Ahmad Shakerardekani
  • Roselina KarimEmail author
Short Communication


Pistachio nut (Pistacia vera L.) is one of the popular tree nuts in the world. Proper selection of packaging materials is necessary to prevent absorption of moisture and aflatoxin formation which will influence the overall product quality and safety. This research is undertaken to study the effect of different type of flexible packaging films on the moisture and aflatoxin contents of whole pistachio nuts during storage at ambient temperature (22–28 °C) and relative humidity of 85–100%. Five types of plastic films tested were low density polyethylene (LDPE) which serves as the control, food-grade polyvinyl chloride (PVC), nylon (LDPE/PA), polyamide/polypropylene (PA/PP) and polyethylene terephthalate (PET). The moisture content and aflatoxin content of pistachio nuts were measured using oven drying method and HPLC, respectively. Sample were analysed at 0, 2, 4, 6, 8 and 10 months during the storage period. Results showed that there was an increase in moisture content with the increase in storage time of pistachio nuts. The increase in moisture content was associated with the aflatoxin level of pistachio nuts during storage time. All the packaging materials except LDPE delayed the moisture absorption and aflatoxin formation of the product. The most suitable packaging materials for maintaining the quality and safety of pistachio nuts is PET films followed by nylon, PA/PP and PVC. The shelf-life of pistachio can be extended from 2 months (Control) to 5 months when PET is used as the packaging material.


Pistachios Packaging materials Moisture content Aflatoxin Quality 



The authors would like to thank Iran Pistachio Research Institute for financial support.


  1. AOAC (1990) Official Methods of Analysis. Association of Official Analytical Chemists, ArlingtonGoogle Scholar
  2. Arrus K, Blank G, Abramson D, Clear R, Holley RA (2005) Aflatoxin production by Aspergillus flavus in Brazil nuts. J Stored Products Res 41(5):513–527CrossRefGoogle Scholar
  3. Belitz HD, Grosch W, Schieberle P (2004) Food chem. Springer, BerlinGoogle Scholar
  4. Escobar B, Estevez AM, Guiñez MA (2000) Storage of cereal bars with mesquite cotyledon (Prosopis chilensis). Arch Latinoam Nutr 50(2):152Google Scholar
  5. EU (2009) Effects on public health of an increase of the levels for aflatoxin total from 4 μg/kg to 10 μg/kg for tree nuts other than almonds, hazelnuts and pistachios. Eur Food Saf J 1168:1–11Google Scholar
  6. Javanshah A, Abdolahi M, Shakerardekani A, Hokmabadi H, Mohammadi AH, Arjmand M, Alavi H, Masoomi H, Rafiei AE (2007) Technical and economic study and comparison of two types of plastic packaging in two packing condition (Normal and Vacuum) and two storing condition (Normal and High Moisture) on Pistachio packaging. Iran Pistachio Research Institute, RafsanjanGoogle Scholar
  7. Moradi M, Javanshah A (2006) Distribution of aflatoxin in processed pistachio nut terminals. Acta Hort (ISHS) 726:431–436Google Scholar
  8. Paine FA, Paine HY (1992) A handbook of food packaging. Springer, NetherlandsCrossRefGoogle Scholar
  9. Piringer OG (2000) Plastic packaging materials for food. Wiley-VCHGoogle Scholar
  10. Raei M, Mortazavi A, Pourazarang H (2009) Effects of packaging materials, modified atmospheric conditions, and storage temperature on physicochemical properties of roasted Pistachio nut. Food Anal Method 3(2):129–132CrossRefGoogle Scholar
  11. Sajilata M, Savitha K, Singhal R, Kanetkar V (2007) Scalping of flavors in packaged foods. Compr Rev Food Sci Food Saf 6(1):17–35CrossRefGoogle Scholar
  12. Sudha S, Naik MK, Ajithkumar K (2011) An integrated approach for the reduction of aflatoxin contamination in chilli (Capsicum annuum L.). J Food Sci Tech: 1–6Google Scholar
  13. Zolfagharieh H (2004) Irradiation to control Plodia interpunctella and Oryzaphilus surinamensis in pistacios and dates. In: Irradiation as a phytosanitary treatment of food and agricultural commodities. FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Vienna, p 101–109Google Scholar

Copyright information

© Association of Food Scientists & Technologists (India) 2012

Authors and Affiliations

  1. 1.Universiti Putra MalaysiaSerdangMalaysia
  2. 2.Iran Pistachio Research InstituteRafsanjanIran

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