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The Journal of Health, Population and Nutrition
icddr,b
ISSN: 1606-0997
EISSN: 1606-0997
Vol. 29, No. 4, 2011, pp. 415-419
Bioline Code: hn11052
Full paper language: English
Document type: Report
Document available free of charge

The Journal of Health, Population and Nutrition, Vol. 29, No. 4, 2011, pp. 415-419

 en Microbial Contamination of Seven Major Weaning Foods in Nigeria
Oluwafemi, F. & Ibeh, I. Nnanna

Abstract

Five million children aged less than five years die annually due to diarrhoea. The aim of the study was to identify some possible contributing factors for persistent diarrhoea. Seven weaning foods, including a locally-made food, were evaluated by estimating the microbial load using the most probable number method and aflatoxin levels (AFM1, AFG1, AFG2, and AFB2) by immunoaffinity column extraction and high-performance liquid chromatography (HPLC) with detection of fluorescence. The results showed that the locally-made weaning food had the highest microbial count (2,000 cfu/g) and faecal streptococcal count (25 cfu/g). Moulds isolated were mainly Aspergillus niger check for this species in other resources , A. flavus, A. glaucus, Cladosporium check for this species in other resources sp., and Penicillium check for this species in other resources sp. The home-made weaning food recorded the highest fungal count (6,500 cfu/g). AFM1 of the weaning foods was 4.6-530 ng/mL. One weaning food had AFB1 level of 4,806 ng/g. Aflatoxin metabolites, apart from AFM1 and AFB1 present in the weaning foods, were AFG1 and AFG2. There were low microbial counts in commercial weaning foods but had high levels of aflatoxins (AFM1, AFG1, AFG2, AFB1, and AFB2). Growth and development of the infant is rapid, and it is, thus, possible that exposure to aflatoxins in weaning foods might have significant health effects.

Keywords
Aflatoxins; High-performance liquid chromatography; Microbial contamination; Microbial count; Weaning foods; Nigeria

 
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