Title
Detection of toxigenic Clostridium perfringens and Clostridium botulinum from food sold in Lagos, Nigeria
Date Issued
01 December 2016
Access level
metadata only access
Resource Type
journal article
Author(s)
Chukwu E.E.
Nwaokorie F.O.
Coker A.O.
Avila-Campos M.J.
Ogunsola F.T.
University of São Paulo-USP
University of São Paulo-USP
Publisher(s)
Academic Press
Abstract
Food-borne diseases contribute to the huge burden of sickness and death globally and in the last decade, have become more frequently reported in Africa. In line with this, food safety is becoming a significant and growing public health problem in Nigeria. Diarrhoea is a common problem in Nigeria and has been reported but there has been little data on the possibility of clostridia as aetiological agents. Clostridium species are ubiquitous in the environment and in the gastrointestinal tract of man and animals and can serve as a marker for faecal contamination. We set out to determine the potential of these foods to transmit Clostridium species. A total of 220 food commodities from six local governments in Lagos State were sampled. Isolates obtained were identified based on cultural, morphological and biochemical characteristics. Toxinotyping was done using multiplex-PCR with primers specific for alpha, beta, epsilon and iota-toxin genes, enterotoxigenic cpe gene and neurotoxigenic BoNt gene. Fifty (22.7%) clostridial species were isolated of which 29 (58%) were identified as C. perfringens. Toxinotyping of the 29 strains showed that 28 (96.6%) were toxin producing C. perfringens type A while one (3.4%) was C. perfringens type D. Two (4%) C. botulinum species were isolated and identified by 16S rRNA sequencing, both harbouring BoNt/A gene. The contamination rates of food with Clostridium species show that food hygiene is a problem and Clostridium species may be a source of food borne disease in Lagos State, Nigeria.
Start page
176
End page
181
Volume
42
Language
English
OCDE Knowledge area
Alimentos y bebidas Biotecnología agrícola, Biotecnología alimentaria
Scopus EID
2-s2.0-85001052533
PubMed ID
Source
Anaerobe
ISSN of the container
10759964
Sponsor(s)
This work was supported by the Sigma Delta Epsilon-Graduate Women in Science (SDE/GWIS) Nelly Mondy Fellowship award 2014 ( www.gwis.org ). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
Sources of information: Directorio de Producción Científica Scopus