Surface decontamination of whole-shell eggs using far-infrared radiation

Alkaya G. B., ERDOĞDU F., Halkman A. K., Ekiz H. I.

FOOD AND BIOPRODUCTS PROCESSING, cilt.98, ss.275-282, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 98
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.fbp.2016.02.006
  • Dergi Adı: FOOD AND BIOPRODUCTS PROCESSING
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.275-282
  • Anahtar Kelimeler: Whole shell eggs, Surface decontamination, Infrared processing, Salmonella Enteritidis, E. coli ATCC 25922, Far infrared radiation, HOT-AIR TREATMENT, SALMONELLA-ENTERITIDIS, INOCULATED SALMONELLA, THERMAL-RESISTANCE, ESCHERICHIA-COLI, TABLE EGGS, PASTEURIZATION, HEAT, COMBINATION, ULTRAVIOLET
  • Ankara Üniversitesi Adresli: Evet

Özet

Shell eggs from healthy chickens are assumed sterile inside, but numerous microorganisms might be present on the shell. While warm water and controlled microwave applications are some common whole egg pasteurization processes, surface decontamination might be a feasible process since majority of microorganisms are located over the shell. With infrared application's direct influence on the surface, similar to the case of pulsed light and ultraviolet applications, the objective of this study was to determine its potential for surface decontamination of whole-shell eggs. For this purpose, shell eggs were inoculated with E. coli ATCC 25922 strain, considering its similar resistance compared to Salmonella Enteritidis to heat, and processed under infrared conditions from 180 to 350 degrees C. Processing at 250 degrees C for 110 s resulted in 3.37 log cycle reduction without causing any denaturation in albumen and adverse effects in yolk index, Haugh unit, albumen pH and foaming capacity. These results demonstrated the potential of infrared heating for surface decontamination of whole shell eggs as a possible industrial application. (C) 2016 The Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved.