Bir gıda patojeni: Cronobacter sakazakii

Cronobacter sakazakii, yeni doğanlarda menenjit, septisemi ve enterokolite neden olan fırsatçı bir patojendir. Etken, Enterobacteriaceae familyasında yer alan, Gram-negatif çubuk şeklinde bir bakteridir. C. sakazakii farklı kaynaklardan izole edilmesine rağmen, enfeksiyonlar toz bebek mamalarıyla ilişkilendirilmiştir. C. sakazakii enfeksiyonlarından korunabilmek için, etkenin üreme, canlı kalma, inaktivasyon koşulları gibi özellikleri ile izolasyon ve identifikasyon yöntemlerinin bilinmesi önemlidir.

A food pathogen: Cronobacter sakazakii

Cronobacter sakazakii is an opportunistic pathogen causing meningitis, septicemia and enterocolitis in neonates. The organism is a Gram-negative rod within the family Enterobacteriaceae. Although the pathogen was isolated from different sources, its infections have been linked with powdered infant formulas. It is important to know growth, survival, and inactivation conditions of C. sakazakii and its isolation and identification methods for preventative purposes.

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  • Amalaradjou MAR, Hoagland TA, Venkitanarayanan K, (2009). Inactivation of Enterobacter sakazakii in reconstituted infant formula by trans-cinnamaldehyde. Int J Food Microbiol. 129, 146-149.
  • Anonim, (2008). Türk Gıda Mevzuatı Devam Formülleri Tebliği.Erişim:http://www.kkgm.gov.tr/TGK/Teblig/2008-53.html, Erişim tarihi: 15.01.2010.
  • Back SY, Jin HH, Lee SY, (2009). Inhibitory effect of organic acids against Enterobacter sakazakii in laboratory media and liquid foods. Food Control, 20, 867-872.
  • Baumgartner A, Grand M, Liniger M, Iversen C, (2009). Detection and frequency of Cronobacter spp. (Enterobacter sakazakii) in different categories of ready-to-eat foods other than infant formula. Int J Food Microbiol. 136, 189-192.
  • Beuchat LR, Kim H, Gurtler JB, Lin LC, Ryu JH, Richards GM, (2009). Cronobacter sakazakii in foods and factors affecting its survival, growth, and inactivation. Int J Food Microbiol. 136, 204-213.
  • Breeuwer P, Lardeau A, Peterz M, Joosten HM, (2003). Desiccation and heat tolerance of Enterobacter sakazakii. J Appl Microbiol. 95, 967-973.
  • Cawthorn DM, Botha S, Witthuhn RC, (2008). Evaluation of different methods for the detection and identification of Enterobacter sakazakii isolated from South African infant formula milks and the processing environment. Int J Food Microbiol. 127, 129-138.
  • Dancer GI, Mah JH, Rhee MS, Hwang IG, Kang DH, (2009). Resistance of Enterobacter sakazakii (Cronobacter spp.) to environmental stresses. J Appl Microbiol. 107, 1606-1614.
  • Edelson-Mammel SG, Buchanan RL, (2004). Thermal inactivation of Enterobacter sakazakii in rehydrated infant formula. J Food Prot 67, 60-64.
  • Farmer III JJ, Asbury MA, Hickman FW, Brenner DJ, the Enterobacteriaceae Study Group, (1980). Enterobacter sakazakii: A new species of “Enterobacteriaceae” isolated from clinical specimens. Int J Syst Bacteriol. 30, 569-584.
  • FAO/WHO (Food and Agriculture Organization/World Health Organization), (2004). Joint FAO/WHO workshop on Enterobacter sakazakii and other microorganisms in powdered infant formula: meeting report, MRA series 6. February, 2-5, Geneva-Switzerland.
  • FDA (Food and Drug Administration), (2002). Isolation and enumeration of Enterobacter sakazakii from dehydrated pawdered infant formula. Erişim: http://www.fda.gov/Food/ScienceResearch/LaboratoryMethods/ucm114665.htm, Erişim tarihi: 25.01.2010.
  • Gurtler JB, Kornacki JL, Beuchat LR, (2005). Enterobacter sakazakii: A coliform of increased concern to infant health. Int J Food Microbiol. 104, 1-34.
  • Hammerman C, Kaplan M. (2006). Probiotics and neonatal intestinal infection. Curr Opin Infect Dis. 19, 277-282.
  • Iversen C, Forsythe S, (2003). Risk profile of Enterobacter sakazakii, an emergent pathogen associated with infant milk formula. Trends Food Sci Technol. 14, 443-454.
  • Iversen C, Lane M, Forsythe SJ, (2004). The growth profile, thermotolerance and biofilm formation of Enterobacter sakazakii grown in infant formula milk. Lett Appl Microbiol. 38, 378-382.
  • Iversen C, Lehner A, Mullane N, Bidlas E, Cleenwerck I, Marugg J, Fanning S, Stephan R, Joosten H, (2007). The taxonomy of Enterobacter sakazakii: proposal of a new genus Cronobacter gen. nov. and descriptions of Cronobacter sakazakii comb. nov. Cronobacter sakazakii subsp. sakazakii, comb. nov., Cronobacter sakazakii subsp. malonaticus subsp. nov., Cronobacter turicensis sp. nov., Cronobacter muytjensii sp. nov., Cronobacter dublinensis sp. nov. and Cronobacter genomospecies 1. BMC Evol Biol. 17, 7-64.
  • Kim H, Ryu JH, Beuchat LR, (2006). Survival of Enterobacter sakazakii on fresh produce as affected by temperature, and effectiveness of sanitizers for its elimination. Int J Food Microbiol. 111, 134-143.
  • Lee JW, Oh SH, Byun EB, Kim JH, Kim JH, Woon JH, Byun MW, (2007). Inactivation of Enterobacter sakazakii of dehydrated infant formula by gamma-irradiation. Radiat Phys Chem. 76, 1858-1861.
  • Lenati RF, O’Connor DL, Hébert KC, Farber JM, Pagotto FJ, (2008). Growth and survival of Enterobacter sakazakii in human breast milk with and without fortifiers as compared to powdered infant formula. Int J Food Microbiol. 122, 171-179.
  • Lin LC, Beuchat LR, (2007). Survival of Enterobacter sakazakii in infant cereal as affected by composition, water activity, and temperature. Food Microbiol. 24, 767-777.
  • Nazarowec-White M, Farber JM, (1997). Thermal resistance of Enterobacter sakazakii in reconstituted dried-infant formula. Lett Appl Microbiol. 24, 9-13.
  • Pagotto FJ, Nazarowec-White M, Bidawid S, Farber JM, (2003). Enterobacter sakazakii: infectivity enterotoxin production in vitro and in vivo. J Food Prot. 66, 370-375.
  • Seo KH, Brackett RE, (2005). Rapid, specific detection of Enterobacter sakazakii in infant formula using a real-time PCR assay. J Food Prot. 68, 59–63.