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KMID : 0380420100340030171
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Journal of Prventive Veterinary Medicine
2010 Volume.34 No. 3 p.171 ~ p.179
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Microbiological hazards and risk reduction strategies in powdered infant formula
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Lee Soo-Jin
Baek Hyun
Kim Young-Jo
Choe Nong-Hoon
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Abstract
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In recent years, the national surveillance network reported the isolation of Enterobacter sakazakii and coliform from
powdered infant formula (PIF). PIF means a breast-milk substitute specially manufactured to satisfy the nutritional
requirements of infants during the first month. PIF is not sterile infant food and may be intrinsically contaminated with
pathogens, such as E. sakazakii and Salmonella enterica that can cause serious illness in infants. Intrinsic contamination
of PIF with E. sakazakii and S. enterica has been a cause of infection and illness in infants. E. sakazakii is an
opportunistic pathogens and more commonly found than S. enterica in manufacturing environment. Even low levels of
contamination of E. sakazakii and S. enterica in PIF were considered to be a risk factor. Enterobacteriaceae showed
the high prevalence and some Enterobacteriaceae causing disease were detected. The infant food industry should be
encouraged to reduce the concentration and prevalence of E. sakazakii in both the manufacturing environment and PIF.
The presence of these microorganisms in PIF may occur as a results of contamination through ingredients during PIF
manufacturing process and from the processing environment during packaging. In order to ensure that ingredients and
packaging materials are microbiologically suitable, PIF manufacturer need to be selection of supplier according to
stringent criteria (e.g. HACCP, good hygienic practices) and testing of ingredients especially colostrum. In conclusion,
it is continually necessary to monitor the potential pathogens and reduce them to improve the microbial quality of
non-sterilized PIF.
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KEYWORD
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Powdered Infant Formula, Microbiological Hazards, E. sakazakii, Salmonella, Enterobacteriaceae
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