ABSTRACT
Survey of the
currency bills in University of Uyo, for fungal contaminations revealed
presence of fungal organisms such as species of Aspergillius niger, Aspergillus fumigatus, penicillium spp, mucor spp,
candida albicans,and Rhizopus spp.
This study was carried out using a total of 101 samples of banknotes
denomination (N5, N10, N20, N50, N100, N200, N500, and N1000) obtained from
different points of collections within University of Uyo. The currencies were
processed for fungal isolation using potato dextrose agar medium and streaking
technique was employed for the isolation and purification of the colonies.
Microscopic and Macroscopic examination revealed that N500 denomination had the
highest incidence of organism, and samples from College of Science and
Technology buttery were also the most contaminated. Paper money handling should
include but not limited to carrying currency notes in wallets, envelops and
holding with clean hands. The promotion of a cashless economy is also
advocated; Nigerian paper money has been found in this study to be contaminated
with Bacteria and could be vehicles for the transmission of fungal diseases of
man.
TABLE OF CONTENTS
CHAPTER ONE
INTRODUCTION
1.1 AIMS
AND OBJECTIVES
1.2 JUSTIFICATION
CHAPTER TWO
LITERATURE REVIEW
2.1 HISTORY OF THE NIGERIAN CURRENCY
2.3 TYPES OF MONEY
2.4 DENOMINATION
2.5 BACTERIA
2.5.1 BACTERIA CLASSIFICATION
CHAPTER
THREE
MATERIALS
AND METHODS
3.1 EQUIPMENT
3.1.1
REAGENTS
3.1.2
MEDIA/ AGAR
3.2 METHODS
3.2.2 Examination
of currencies for contamination by Bacteria
3.2.3 Isolation
and Identification of Bacteria
CHAPTER
FOUR
RESULTS
CHAPTER FIVE
SUMMARY OF FINDINGS AND CONCLUSION
5.1 DISCUSSION
5.2 CONCLUSION
REFERENCES
CHAPTER ONE
INTRODUCTION
In most
day-to-day cash transactions, money, in form of notes and coins, pass through
the hands of many people; as a form of payment for goods and services,
settlement of debts and for deferred payment in economic activities (Beg and
fisher, 1997). Various denomination of the naira notes have been minted by the
Central bank of Nigeria (CBN). They are released to the public, through the
Commercial banks currently; there are eight denominations of the naira in note
form: N5, N10, N20, N50, N100, N200, N500 and N1000 notes. The N5, N10, N20,
N50,
N100 and N200
naira notes are the most common and are more involved daily cash transactions.
They are common especially among the populace while the N500 and N1000 notes
are commonly used among the wealthy and in corporate transactions (Okon et al.,
2003). Individuals handling the notes shed some of their body flora on the
notes; leading to the spread of the microorganisms among the handlers. This has
been implicated in serious health hazard such as impairment of lungs function
(Osim, 1996). The contamination of the notes can be traced to dust, soil,
water, micro flora of the body of handlers (hand, skin, etc.), the saliva often
used when counting the notes and wounds. Some money handling habits such as:
keeping naira notes in brassiere, socks and pockets, under the carpet or rugs
and squeezing in the hand frequently introduce microbes to the notes. Citrobacter spp Mycobacterium lapiae, Salmonella
spp, Shigella spp, Escherichia coli, Staphylococcus aureus and
Pseudomonas aeroginosa have been
isolated from naira notes (Haque, 2003).
The
contamination of the naira notes could also be from several sources, it could
be from the atmosphere, during storage, usage, handling or production (Awodi et al., 2000). Daily transactions have
made the naira to pass through many hands and pathogens become imposed on them.
Ogo et al., (2004) reported that the
source of contamination could be as a result of poor or negative money handling
practices like spraying during ceremonies where such notes may be trampled upon
when they fall on the ground.Most of them are normal flora of the human skin;
however, some e.g. S. aureus and P. aeroginosa can be opportunistic
pathogens. This suggests that the notes could serve as formites for some
infectious agents. In this study dirty naira notes of different denominations
were collected and analysed for their bacteriological quality as indicated by
the kinds of bacteria they harbour.
Parasites are organisms that live in a close
relationship with other organisms (hosts) and are capable of causing harm to
their host. Parasites that have been observed to be contaminants of the naira
notes are mainly of faecal origin (Awodi et
al., 2000). When hands used in cleaning up the anus after passing out
faeces are not properly washed and are used to touching the naira note in any
way, the tendency is contamination with the trophozoite of the developed
parasite, eggs, cysts or even the oocyst. Other attitudes such as the wetting
of hands or fingers with saliva or use of contaminated water to lubricate the
hand in counting money could lead to possible transfer of parasite and bacteria
from such medium to the notes (Ameh and Balogun, 1997).
Bacteria are
ubiquitous and their ability to contaminate objects such as the naira notes is
very prevalent when compared to other organisms. Ordinarily, the exposure of
naira notes to the atmosphere could even bring about contamination depending on
the environment in question (Ameh and Balogun, 1997). Since the isolation of
bacterial and fungal organisms from naira notes in Zaria (Ameh and Balogun,
1997) and the effect of parasitic and bacterial organisms on man it has become
necessary for thorough investigations to be carried out to determine safety of
the naira note.
Microbial
Contamination of paper money is not confined to developing nations. Several
studies from the United States reported contamination of coins and paper bills
and the identification revealed the presence of pathogenic microbes like Staphylococcus aureus, Escherichia coli, Klebsiella
enterobacter. Another survey isolated total of 93 different types of
bacteria belonging to the genera Staphylococcus,
Streptococcus, Enterobacter, Acinetobacter, Pseudomonas, Bacillus, Diptheroids,
Klebseilla and Escherichia.
1.2 AIMS AND OBJECTIVES
The aim of this
study is to investigate the likelihood of microbial contamination of Nigerian
currency in circulation in University of Uyo. Knowledge of the microbial
diversity of currency notes in circulation can provide the basis for improved
health consciousness in people during currency handling and effective control
of transmission of infections.
This research
was carried out:
Ø To isolate and characterize Bacteria from paper note
samples collected in University of Uyo
Ø To check for the most prevalent Bacteria in University of
Uyo
Ø To show the area with the most contaminated paper notes
Ø To identify ways of control, enlightenment and eradication
of these disease-causing organisms.
1.3 JUSTIFICATION
Bacteria are a diverse group of microorganisms which are of various
importance in food and health sciences and they also a major important
pathogenic organism, their spores can survive dryness and this study is to
isolate and characterize Bacteria found on the Nigerian currency in University
of Uyo and how these organisms can affect the health of populace of this
institution.
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