Effect of Drying Methods and Pre Treatments on Shelf Life and Microbial Quality of fish (Oreochromis Niloticus, Pylodictis Olivaris and Cyprinus Carpio) Species Commonly used in Gambella Region

Getahun Asebe; Dagne Tarle; Mitiku Eshetu

Authors

Getahun Asebe
Dagne Tarle
Mitiku Eshetu

Keywords:

microbial quality, fish handling, fish pre servation, fish slicin g, dryingmetho ds, dried fish s helf- life, gamb ella regio n, ethiopia

Abstract

A study was conducted to assess the effect of drying methods and pre-treatments on shelf-life and microbial quality of dried fish. The experiment was conducted in factorial arrangement of 2×3×2 with two drying methods (sun and oven drying,) three fish species (tilapia, cat fish and carp) and two preservatives treatment (garlic and ginger juice) laid out in Completely Randomized Design (CRD). Fresh fillets were analyzed for their microbiological quality. Drying reduced the moisture contents making it safe for long term storage. The dried fillets were stored at ambient condition and the samples were analyzed for microbial status every twenty days starting from the end of drying operation. Fresh fillet and untreated dry fillet were used as control. In the fresh fillets, a high load of aerobic bacteria of 5.11 log10 cfu/g was observed on carp, and E.coli was detected in all three species whereas no Salmonella spp.

Downloads

How to Cite

Effect of Drying Methods and Pre Treatments on Shelf Life and Microbial Quality of fish (Oreochromis Niloticus, Pylodictis Olivaris and Cyprinus Carpio) Species Commonly used in Gambella Region. (2015). Global Journal of Medical Research, 15(20), 31-40. https://medicalresearchjournal.org/index.php/GJMR/article/view/

Download Citation

Author Biography

Getahun Asebe

Getahun Asebe is an academic and researcher affiliated with Gambella University in Ethiopia, where he serves as an Assistant Professor in the Department of Animal Science within the College of Agriculture and Natural Resource. His work focuses on animal science, veterinary public health, and infectious diseases, with a particular emphasis on livestock feed resources, animal welfare, and the epidemiology of vector-borne diseases in the Gambella region. He has contributed to numerous studies on topics ranging from fish preservation and dairy calf rearing to hard tick control and assisted reproductive technologies. With a DVM, MSc in Tropical and Infectious Diseases, and a PhD in Veterinary Public Health from Addis Ababa University, Dr. Asebe has built a robust research portfolio that includes 27 publications, 379 citations, an h-index of 10, and an i10-index of 12. His work is widely recognized, and he has served as a reviewer for journals such as those from Omics Publishing Group and Hindawi. Dr. Asebe's research continues to inform sustainable agricultural practices and public health strategies in Ethiopia and beyond.

References

O. Afolabi, O. Arawoma (1984) Quality changes of Nigeria traditional processed fresh water spp: Nutritive & organoleptic changes. 19, 333-340.

J. Akinneye, I. Amoo, S. Arannilewa (2007) Effect of drying methods on nutritional composition of three species of (Bonga sp., Sardinella sp. and Heterotis niloticus) fish. 2(1), 99-103.

O. Akinola, A. Akinyemi, B. Bolaji (2006) Evaluation of traditional and solar drying systems towards enhancing fish storage and preservation in Nigeria (Abeokuta Local Government as a case study) J Fish. 1(2-4), 44-49.

(2000) 1193.

I. Clucas, P. Sctcliffe (1987) Introduction.

(1995) Estimations of the total number of microorganisms from fresh water fish with acceptability index in standards, guidelines, and specifications.

A. Eyo (1986) Significance of fish handling preservation and processing in the development of Nigeria inland fisheries with special reference to Kanji Lake.

FAO, User's, guide Rome (1990) Manual on Simple Methods of Meat Preservation. http://www.fao.org

FAO (2010) The state of world fisheries and aquaculctur-FAO fisheries and aquaculture dep: food and agricultural organization of the united nation, Rome.

(1992) The consideration of Enterbacteriaceae index.

C. Heberg, MacDonald L., M. Osterholm (1994) Changing epidemiology of food borne disease: A Minnesota perspective. 18, 671.

H. Huss, P. Dalgaard, O. Mejlholm (1997) Application of an iterative approach for development of a microbial model predicting the shelf-life of packed fish.

(1986) sampling plans for fish and shellfish. 2, 181-196.

ISO (2002) Method 6579, 4th edition. Microbiology food and animal feeding atuffs-Horizontal method for the detection of Salmonella spp.

J. Libby, Maeda (1975) Meat Hygiene (4thEd). 658.

Maurine, L. James, T. (2001) US Food and Drug Administration (FDA).

R. Mdegela, J. Ruttaisire, J. Obua, S. Okoth Mdegela R., Ruttaisire, J., Obua, J. and Okoth, S. 10.

G. Mendel (1999) Mendelian principle of genetics and DNA technology.

A. Okonta, J. Ekelemu (2005) A prelimnary study of micro-organisms associated with fish spoilage in Asaba, Southern Nigeria. 557-560.

Kwarten Okorely (2006) The traditional fish processing activities.

D. Salmon, G. Siukumar, Abraham (1995) Prevention of infectious bacteria through careful cleaning.

J. Spencer, A. Clifford (2000) Spencer, J. and Clifford, A.

M. Suleiman (2010) Fungitoxic Activity of Neem and Pawpaw Leaves Extracts on Alternaria Solani, Causal Organism of Yam Rots: Adv Environ. 4, 159-161.

N. Wilson (1981) Meat and Meat Products. 660.

Zaika (1988) Spices as herbs harbor microbial contaminants which serve as substrates for microbial growth in the food.