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THE EVALUATION OF MICROORGANISMS ON GARRI AT OGBETE MARKET

ABSTRACT

In the work, samples of Garri obtained from Ogbete market were evaluated for microbial contamination. Four sample of Garri from different sources of supple were collected from Ogbete main market Enugu Okwo, Nkalagu, Emene, and  Abakaliki respectively.  The sample were extracted using equal volume of sterile distilled water and serially diluted appropriately and the cultured for the growth of microben.  The growth were further suspected to biochemical tests, characterization for confirmatory diagnosis organism isolated include staphylococcus aureus, clostridium perferingens, Clostridium botulism and vibroi parahamolyticus. The evaluation show that Abakaliki Garri have more microbial spores than others. This can be because of handler or jute bag or moisture which help in the increase of the microbial load.  This was involve the microbial analysis of Garri produced from four major production sites namely: Nkalafi Okwuo imene Aba and collected from the major marketing site Ogbetet main Enugu.  The sample digest were extracted wing equal oplungs of sterile distilled water and serially distilled appropriately and the cultured for the growths of microben.  The growth New further subject to biochemical tests characterization for canisimatory diagnosis.  Organism isolated indade staphylococcus aureus; sodium peferefusu, clostridian trotulium and vibro para haemolylica.

CHAPTER ONE

INTRODUCTION

The diet of many African peoples especially the Nigeria people are supplement with cassava products preserved by special method such as Garri, fufu etc.  It may be partially or completely backed or precooked ready for eating and serving.  During preparation, food may be contaminated with microorganisms.  Unless the growth and metabolism of this microorganism are controlled, they are capable of altering the condition of food resulting in food spoilage.  Microorganism are organisms that cannot be seen by an invaded eyes, their size are within the range of (NM) micrometer to (nm) Nanometre and their activities on food produce food poisoning food poisoning ie an illness that result from the consumption of contaminated food containing toxin screted into it by contaminated microorganism or contaminated by microorganisms when the body release their toxin (Okoli, 1991).  Also the (Kay and Dennis 1986) defined food poisoning as any substance applied to the body externally or taken internally that can cause injury to any part of the body or cause death.

In Garri preparation the cassava is pealed, washed, grated then follow by dehydration under pressure, finally frying, packaging and storage.  These process if not handle in a good hygiene condition or good environment, microorganism will contaminated it and will result in food can lead to the death of many people which can reduce the working force and increase poverty rate due to heavy hospital bills.  To avoid this problem, this research work is designed to know the microbial organisms of Garri in Ogbete market.  The microbial organisms present will be analyzed to see if it can cause food poisoning.  From the analysis the list of microorganism present or microorganism contamination on garri can be control effectively and our Garri will be save  for consumption at anytime.

The intoxication from nature source is that found naturally in contain plants or animals (Frazien and Westhof. 1978).  The intoxications caused by bacterial are of two types by clostridium botulinum, staphylococcal intoxication, caused by a toxin in the food produced by staphylococcus aureus.  In the production of food, such as in the fermentation of garri, the fermentation reduced the cyanile toxicity  in the cassava which if present in large quantity causes food poisoning.  The processing of cassava involves the contamination of the cassava if it is not properly processed.

1.1   AIM AND OBJECTIVE OF THE STUDY