Evaluation the effect of biodegradable active packaging based on Zein containing Zataria multiflora essential oil on postharvest shelf life of strawberry

Document Type : Research Article


1 MSc Graduate, Department of Biosystems Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran

2 Associate Professor, Department of Biosystems Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran

3 Chemical Engineering Department Faculty of Engineering University of Mohaghegh Ardabili

4 PhD candidate, Department of Biosystems Engineering, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran


Every year, a large part of the Produced strawberries is losses due to postharvest corruption. On the other hand, the demand for Biodegradable packaging materials has increased sharply due to environmental concerns about the use of petroleum polymers. Therefore, biopolymer-based packaging materials have a high potential for replacement with petroleum plastics. Research has also shown that plant essential oils can control postharvest diseases of agricultural products. However, their use is associated with difficulties due to physical and chemical instabilities odors and taste in the product. One of the best way to solve this problems is to include essential oils in the packaging film. Therefore, the present study aimed to investigate the effect of biodegradable film based on Zein containing Zataria multiflora essential oil (with concentrations of 0, 5, 10 and 20% w/w) as an active packaging to increase the Postharvest shelf life of strawberry fruit. The effect of films on maintaining the quality properties of strawberries during 15 days of storage at 4°C was evaluated and the amount of changes in weight, firmness, soluble solids, pH, treatable acidity, vitamin C and microbial contamination of strawberry samples during this period were evaluated. The results showed that during the storage, the quality of the samples decreased but the decreasing trend in packaged samples was much less than unpackaged samples. Also, the addition of essential oil to the polymer film improved the quality properties of strawberries, and with increasing the concentration of essential oil, the quality of strawberry samples decreased. Therefore, it seems that it is possible to greatly reduce the waste after harvest of strawberries by using the biodegradable film of saddle containing Zataria multiflora essential oil as an active packaging.

Graphical Abstract

Evaluation the effect of biodegradable active packaging based on Zein containing Zataria multiflora essential oil on postharvest shelf life of strawberry


  • Zein active films containing different concentrations of Zataria multiflora essential oil (ZEO) were synthesized and their potential for increasing the shelf life of strawberries was investigated.
  • Weight loss, firmness, soluble solids content (SSC), pH, titratable acidity, vitamin C and microbial spoilage of packaged strawberry samples were evaluated during 15 days of storage.
  • Application of Zein active films containing ZEO was able to maintain quality of strawberry during postharvest shelf life.


Main Subjects

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