alexa Microbial Evaluation of Selected Post Harvest Processing Techniques for Quality Fish Product at Bahir Dar Town, Ethiopia
ISSN: 2150-3508

Fisheries and Aquaculture Journal
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Research Article

Microbial Evaluation of Selected Post Harvest Processing Techniques for Quality Fish Product at Bahir Dar Town, Ethiopia

Adamu Yimer1*, Minwyelet Mingist1 and Behailu Bekele2

1Department of Fisheries, Wetlands and Wildlife Management, College of Agriculture and Environmental Sciences, Bahir Dar University, P.O. Box 5501, Bahir Dar, Ethiopia

2School of Food and Chemical Engineering, Bahir Dar Institute of Technolgy, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia

*Corresponding Author:
Adamu Yimer
Department of Fisheries, Wetlands and Wildlife Management
College of Agriculture and Environmental Sciences, Bahir Dar University
P.O. Box 5501, Bahir Dar, Ethiopia
Tel: +251-918-717733
E-mail: [email protected]

Received date: February 24, 2017; Accepted date: March 21, 2017; Published date: April 08, 2017

Citation: Yimer A, Mingist M, Bekele B (2017) Microbial Evaluation of Selected Post Harvest Processing Techniques for Quality Fish Product at Bahir Dar Town, Ethiopia. Fish Aqua J 8:194. doi: 10.4172/2150-3508.1000194

Copyright: © 2017 Yimer A, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

The objective of this study was to evaluate the quality of fish processed by open air rack, solar tent and smoking methods. African catfish (Clarias gariepinus) was filleted, washed, sliced, brine salted and processed by the selected methods, packed in plastic bags and stored at room temperature. Abalo (Brucea antidysenterica) and Olic tree (Olea europaea) were used as smoking wood. For moisture content test, 25 g of processed fish was put in an oven at 105°C and weight change of the samples was measured until the change become constant. It was calculated as the difference between the initial and final weight. Twenty-five gram of processed fish was taken aseptically and standard procedures of dilution and spread plating were done based on the type of microorganism to be identified. Then, the number of colonies were counted and changed into log 10 cfu/g. Solar tent reduced the moisture content to 20% and 23% for Nile tilapia and African catfish, respectively. Microbial load of solar tent dried fish samples was below the standard norm than open air rack and smoking methods. There was statistical difference between treatments (p=0.05). Solar tent drier produced better quality of fish product.

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