American Journal of Food Science and Technology, 2018, Vol. 6, No. 5, 219-222
Available online at http://pubs.sciepub.com/ajfst/6/5/5
©Science and Education Publishing
DOI:10.12691/ajfst-6-5-5
Assessing the Hygienic Status of Processed Fresh Water
Clam (Galatea paradoxa) in Yenagoa Metropolis,
Bayelsa State, Niger Delta, Nigeria
Tonbarapagha Kingdom
1,*
, Douye Victor Zige
2
, Deborah Anesakeme
1
1
Department of Fisheries and Aquatic Studies, Niger Delta University, Wilberforce Island, P.M.B. 071,
Yenagoa, Bayelsa State, Nigeria
2
Department of Microbiology, Faculty of Science, Federal University, Otuoke, Bayelsa State, Nigeria
*Corresponding author: tonbarapagha@ndu.edu.ng
Abstract This study was carried out to assess the sanitary quality of processed (fried) freshwater clam (Galatea
paradoxa), sold in Yenagoa metropolis, Bayelsa State, Nigeria. “Water snail” as it is popularly called is vended by
women and children. This delicacy is widely consumed in Yenagoa and its environs. Sixteen (16) Samples were
collected randomly from four different hawkers within the Swali market in Yenagoa. Analysis included cultural
techniques and bacterial quality assessment by enumeration of viable bacterial colonies using dilution techniques.
The microbial analysis revealed Total Coliform Count of 7.33 × 10
6
± 1.18 ×10
6
cfu\ml, Total Thermotolerant Count
of 3.3 × 10
5
± 0.05 × 10
5
cfu\ml, Total Heterotrophic Count (22°C) of 5.6 × 10
6
± 2.02 × 10
6
cfu\ml and Total
Heterotrophic Count (37°C) of 5.13 × 10
6
± 0.55 × 10
6
cfu\ml. Thus, the Total Viable Count ranged from 3.3 ×10
5
±
0.5 × 10
5
cfu\ ml to 7.33× 10
6
± 1.18 ×10
6
. A routine biochemical test was carried out to confirm the presence of
potential pathogenic bacteria. The pathogens isolated were Escherichia coli, Staphylococcus epidermis,
Enterobacter spp, Shigella spp, Proteus spp and Salmonella Paratyphi A. The presence of indicator organisms from
faecal sources, environmental contamination and relatively potential bacteria could be attributed to poor hygienic
practices during handling and processing of the clams and waste management practices within the point of sales. A
good health education package needs to be given to vendors on good handling practice of vended foods.
Keywords: bacteria load, clams, pathogens, viable counts
Cite This Article: Tonbarapagha Kingdom, Douye Victor Zige, and Deborah Anesakeme, “Assessing the Hygienic
Status of Processed Fresh Water Clam (Galatea paradoxa) in Yenagoa Metropolis, Bayelsa State, Niger Delta,
Nigeria.” American Journal of Food Science and Technology, vol. 6, no. 5 (2018): 219-222. doi: 10.12691/ajfst-6-5-5.
1. Introduction
The increasing demand for fish and fishery products is
greatly challenged globally by microbial infection of fish
and contamination of fish products. They are prone to
contamination at various stages of handling, processing,
and quality is a major concern to food processor and
public health authorities [1]. Food borne diseases continued
to be a major public health problem on a global scale,
especially in developing countries due to difficulties in
safeguarding food from cross contamination [2].
However, street foods have been in transmission of
foodborne diseases [3,4,5,6]. The problem of food safety
in developing countries is usually attributed to poor hygiene
practices during foods processing and packaging [7,8,9].
Processed freshwater Clam (Galatea paradoxa) is a
well-known delicacy in towns and communities of the
Niger Delta, including the city of Yenagoa, in Byaelsa
State. It is commonly called “water snail” and “Gbou” by
the Izon-speaking people of Bayelsa State. The processed
Clams are prepared either smoked, fried or cooked and
sold in the streets and markets of Yenagoa. They are
readily available for purchase and consumption. Several
pathogenic microorganisms have been associated with
many street vended foods [10].
Published literatures on the microbial load in the
processed clams, even though, a popular delicacy in
Bayelsa State in particular and Niger Delta as a whole, is
absent. Therefore, this study was therefore undertaken to
examine the bacterial quality of processed freshwater
Clam that is a highly patronised delicacy within the state
and its environs.
2. Materials and Methods
2.1. Study Area
This study was carried out in Yenagoa Metropolis,
capital of Bayelsa state, while facilities at the Federal
Medical Centre was used for laboratory analysis.
2.2. Collection of Samples
Sixteen (16) samples used for this study were fried
Clam (Galatea paradoxa). The samples were bought from