영유아용 분말 조제분유의 미생물 품질분석과 위해세균 모니터링

• 발행기관: 한국축산식품학회
• 저자명: 황지연 이지연 박종현
• 간행물 정보: 『Food Science of Animal Resources』Korean Journal for Food Science of Animal Resources 제28권 제5호, 555~561쪽, 전체 7쪽
• 주제분류: 농수해양 > 식품과학
• 파일형태: PDF
• 발행일자: 2008.12.31

영문 초록

Ninety-nine samples of powdered infant formula in a market were collected from the local market and their contaminations for total aerobic bacteria, coliform, FAO/WHO Category A, B, and C pathogens were analyzed. Total aerobic bacteria were detected in 92 of 99 samples (93%) at levels of 1.83±0.68 Log CFU/g. These levels were below legal levels specified for infant formulas except for one sample detected by 4.5 Log CFU/g. Coliform was detected in 12 of 99 samples (12%) at levels of 1.26±1.03 Log MPN/g whereas non-detection was required according to the specification of coliform in infant formulas. Escherichia coli was detected in 1 of 99 samples by 0.48 Log MPN/g. Salmonella and Enterobacter sakazakii among Category A weren`t detected in all the samples. Enterobacteriaceae, Category B group, were detected in 25 samples of total 99 samples (25%) by 0.83±1.37 Log MPN/g. Enterobacteriaceae identified by API 20E were Escherichia vulneris, Es. hermannii, Pantoea spp., Citrobacter koseri, Klebsiella pneumoniae, En. cloaceae. Bacillus cereus among Category C was highly detected in 29 of 99 samples (29%) at levels of 0.69±0.32 Log MPN/g with the most probable number count method, which were below legal levels for the specification of B. cereus in infant formulas. Clostridium perfringens, E. coli O157, Staphyloccus aureus, Listeria monocytogenes, Yersinia enterocolitica, and Campylobacter jejuni/coli were not detected. Contamination level of major pathogens was low and falls within the range of specification of infant formulas. However, Enterobacteriaceae and B. cereus showed the high prevalence and some Enterobacteriaceae causing disease were detected. Therefore, it is necessary to monitor the potential pathogens continually and reduce them to improve the microbial quality of non-sterilized powdered infant formulas.

키워드

powdered infant formulas microbial contamination food-borne pathogens monitoring