Prevalence and Characterization of Salmonella Isolated from Beef in Namibia
Journal Title: European Journal of Nutrition & Food Safety - Year 2015, Vol 5, Issue 4
Abstract
Aim: The purpose of this research was to determine the prevalence of Salmonella in raw beef produced from selected commercial abbatoirs in Namibia. Methodology: A total of 9508 of beef samples from three different types of samples; meat cuts, carcass swabs and meat fluid were collected from the three local abattoirs over a period of two years starting from January 2008 to December 2009. Pre-enrichment for isolation of Salmonella was done in Buffered peptone water followed by enrichment in the Rappaport-Vassiliadis and selenite cystine broth. The isolation of Salmonella was done on Xylose Lysine Desoxycholate and Brilliant Green agar followed by biochemical confirmation and serotyping according to Kauffman-White scheme. Results: The overall prevalence of Salmonella was 0.85% for beef samples derived from meat cuts, meat fluid and carcass swabs. The prevalence of Salmonella in carcass swabs (2.67%) was significantly different (P = 0.05) from that of meat cuts (0.50%) and meat fluid (0.43%). No significant difference (P = 0.05) on the prevalence of Salmonella existed between the meat cuts and meat fluid. A total of 34 different types of Salmonella serovars were identified with S. Chester being the most frequently isolated serovars (n = 12), followed by S. Reading and S. Bredeney (n = 6) and S. Typhimurium (n = 5). Conclusions: The prevalence of Salmonella in raw beef found in this survey was lower than those observed in Sub Sahara Africa with S. Chester being the most prevalent serovar.
Authors and Affiliations
Renatus P. Shilangale, Godwin P. Kaaya, Percy M. Chimwamurombe
Keywords
Related Articles
- EP ID EP350395
- DOI 10.9734/EJNFS/2015/17276
- Views 69
- Downloads 0
Risk Assessment of Beta-carotene in Food Supplements
Beta-carotene is a provitamin, i.e. a precursor of vitamin A (retinol), which is classified as an essential nutrient for humans. Beta-carotene is one of many carotenoids found in plants, fungi and bacteria. Carotenoids a...
Identification and Quantification of Phenolic Compounds and Bioactive Properties of Sorghum-cowpea-based Food Subjected to an In vitro Digestion Model
This work identified and quantified some phenolics compound in sorghum-cowpea porridge after subjection to in vitro digestion. Flours, porridge and digested porridge were analysed for total phenolics, total flavonoids, A...
Refined Exposure Assessment of Smoke Flavoring Primary Products with Use Levels Provided by the Industry. A Pilot Study into Data Collection of Use Levels
Aim: The study was performed on the initiative of the Dutch Ministry of Health, Welfare and Sport (VWS) and the Federation of the Dutch Food and Grocery Industry (FNLI), in order to develop a risk-based monitoring system...
Risk Assessment of the Dietary Exposure to Contaminants and Pesticide Residues in Young Children in the Netherlands
Background: Prevention of negative health effects due to pesticide residues and contaminants in food is an important world-wide issue. It has been recognized that especially children may be a potentially vulnerable subgr...
Global Cassava Food Supply and Occurrence of Ataxic Polyneuropathy and Konzo
Study was done to describe global cassava food supply, and its relationship to occurrence of ataxic polyneuropathy and konzo, which are attributed to exposure to cyanide from cassava food. Cassava food supply and occurre...