Effect of Different Types of Plastic Packaging Films on the Moisture and Aflatoxin Contents of Pistachio Nuts During Storage

Journal of Food Science Technology, February 2012

1 Pages Posted: 19 Feb 2012

See all articles by Ahmad Shakerardekani

Ahmad Shakerardekani

Iranian Pistachio Research Institute; Universiti Pertanian Malaysia (UPM)

R. Karim

affiliation not provided to SSRN

Date Written: November 29, 2011

Abstract

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.

Keywords: Pistachios, Packaging materials, Moisture content, Aflatoxin, Quality

Suggested Citation

Shakerardekani, Ahmad and Karim, R., Effect of Different Types of Plastic Packaging Films on the Moisture and Aflatoxin Contents of Pistachio Nuts During Storage (November 29, 2011). Journal of Food Science Technology, February 2012. Available at SSRN: https://ssrn.com/abstract=2007694

Ahmad Shakerardekani (Contact Author)

Iranian Pistachio Research Institute ( email )

Rafsanjan, Kerman 77175-435
Iran

HOME PAGE: http://www.pri.ir

Universiti Pertanian Malaysia (UPM) ( email )

Serdang, Selangor Darul Ehsan 43400
Malaysia

R. Karim

affiliation not provided to SSRN

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