Technological Properties and Biochemical Studies of Bonga Ethmalosa fimhriata
Technological Properties and Biochemical Studies of Bonga Ethmalosa fimhriata
Date
2005
Authors
Akande, G.R
Faturoti, E.O
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Size measurements, anatomical composition and biochemical evaluations of bonga
(Ethynalosa fimhriata) muscle were carried out. The mean values of length and weight recorded
for bonga over a period of 2 months were 22.12+1.27 cm and 136.82±13.27 g respectively.
Size measurements as shown by length and weight data for the one-year period suggested
a positive effect of season on size. The pattern of change in weight throughout the study
period was similar to that of change in length and gave a correlation coefficient "
r
" of 0.82
significant at p<0.05. Anatomical fractionation showed that bonga contained on the average
61.1% trunk, 23.7% head and 16.3% viscera. Total wastes (head and viscera) derived from
bonga were 39.9% of the total body weight. The proximate chemical composition analysis
showed that the muscle of bonga contained between 74.14% and 77.54% moisture, 1.12-5.69%
lipid, 18.73- 21.54% protein and 1.57- 2.14% ash. The chemical composition did not vary
significantly except in lipid content where a significant (p<0.05) inverse relationship between
moisture and lipid content was observed. Triglycerides accounted for over 5% of lipid in
bonga. The major fatty acid component in the lipid of bonga were C 16:0, C 18:0, C 18:1,
C 20:4, C 20:5and C 22:6.
Description
Keywords
Weight, length, anatomical, yield, bonga, fatty acids
Citation
Fishery Tech 42(1):61-66