Application of Gamma Irradiated Edible Coating in Extending Shelf Life of Fresh Cucumber

Authors

  • Mohamed A Abdelaleem Food Irradiation Unit, Plant Research Department, Radioisotopes Application Division, Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt Author
  • Entsar N Mohamed Food Engineering and Packaging Research Department, Food Technology Research Institute, Agriculture Research Center, Cairo, Egypt Author
  • Amira G M Darwish Food Industry Technology Program, Faculty of Industrial and Energy Technology, Borg Al Arab Technological University (BATU), Alexandria, Egypt Author
  • Abeer M F Elbaz Food Engineering and Packaging Research Department, Food Technology Research Institute, Agriculture Research Center, Cairo, Egypt Author

DOI:

https://doi.org/10.48165/jntas.2026.14.01.01

Keywords:

Carboxymethyl cellulose, Gamma irradiation, Thermal analysis, Physiochemical analysis, Rheological analysis

Abstract

This study investigates the enhancement of carboxymethyl cellulose (CMC)/ glycerol (Glyc) edible coatings through gamma irradiation (0, 1, 2, and 3 kGy) to extend the shelf life of fresh cucumbers. Analytical characterization using Fourier Transform Infrared (FTIR) confirmed that the primary functional groups of the CMC matrix remained stable following irradiation. Thermal evaluations via Thermogravimetric Analysis (TGA), Differential scanning calorimetry (DSC), and Thermomechanical Analysis (TMA) revealed that a 2 kGy dose provided an optimal for thermal stability due to radiation-induced cross-linking. Physicochemical results showed that irradiated coatings (3 kGy) significantly outperformed unirradiated controls in preserving quality throughout a 28- day storage period. Rheological analysis indicated that irradiation reduced the apparent viscosity of the CMC/Glyc solutions due to the cleavage of glycosidic bonds, which improved application characteristics. Furthermore, microbiological testing demonstrated that the 3 kGy irradiated coating acted as a potent antimicrobial agent.

Author Biography

  • Amira G M Darwish, Food Industry Technology Program, Faculty of Industrial and Energy Technology, Borg Al Arab Technological University (BATU), Alexandria, Egypt

    Department of Food Technology, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications   (SRTA-City), Alexandria, Egypt.

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Published

2026-05-07

How to Cite

Application of Gamma Irradiated Edible Coating in Extending Shelf Life of Fresh Cucumber. (2026). Journal of Nuclear Technology in Applied Science, 14(1), 1-9. https://doi.org/10.48165/jntas.2026.14.01.01