Preprint / Version 1

A survey of pathogens associated with Cyperus esculentus L (tiger nuts) tubers sold in a Ghanaian city

Authors

  • Patrick Ayeh-Kumi Department of Microbiology, University of Ghana Medical School, Korle-Bu, Accra, Ghana
  • Patience Tetteh-Quarcoo Department of Microbiology, University of Ghana Medical School, Korle-Bu, Accra, Ghana
  • Kwabena Duedu Department of Microbiology, University of Ghana Medical School, Korle-Bu, Accra, Ghana
  • Akua Obeng Department of Medical Laboratory Sciences, University of Ghana School of Allied Health Sciences, Korle-Bu, Accra, Ghana
  • Kantanka Addo-Osafo Department of Microbiology, University of Ghana Medical School, Korle-Bu, Accra, Ghana
  • Samuel Mortu Department of Medical Laboratory Sciences, University of Ghana School of Allied Health Sciences, Korle-Bu, Accra, Ghana

Keywords:

Tiger nut, Cyperus esculentus L, Parasites, Bacteria, “atagwe” Milk, Ghana

Abstract

Background Cyperus esculentus L, is a minor but important crop in Ghana. They are noted mostly by their aphrodisiac properties among others. The nuts are often eaten raw as an unprocessed snack due to its rich flavour and texture. Though eaten raw, the nuts are sometimes handled unhygienically, posing a public health threat. This study therefore aimed at determining the level and distribution of parasitic and bacterial contaminants associated with the crop as it is sold. Results Four types of intestinal parasites were identified, and the most prevalent was Cryptosporidium parvum (30.0%). Nuts contaminated with parasites were found only among street vendors. Bacteriological examination showed three different groups of bacterial isolates with the most prevalent being coliforms (54.2%). Unlike parasites, bacteria isolates were found among samples from both street vendors and market places. Multiple drug resistance was displayed by Proteus vulgaris. Conclusions Buying and eating nuts as well as other fruits taken raw from street vendors and market places could pose a significant public health threat. There is a need for efficient monitoring systems for food borne pathogens in Ghana.

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Author Biography

Patrick Ayeh-Kumi, Department of Microbiology, University of Ghana Medical School, Korle-Bu, Accra, Ghana

Department of Medical Laboratory Sciences, University of Ghana School of Allied Health Sciences, Korle-Bu, Accra, Ghana

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Posted

2024-08-01