IJAMBR 4 (2016) 15-20 ISSN 2053-1818
Proximate composition and acceptability of Bunyi
youri: A traditional Nigerian fermented solar tent dried
fish condiment
Paul Y. Idakwo*, Mamudu H. Badau, Amin O. Igwegbe, and Charles A. Negbenebor
Department of Food Science and Technology, Faculty of Engineering, University of Maiduguri,
P. M. B. 1069, Maiduguri, Borno State, Nigeria.
Article History ABSTRACT
Received 31 December, 2015
Received in revised form 28
January, 2016
Accepted 03 February, 2016
Key words:
Bunyi youri,
Fermentation,
Proximate analysis,
Nile perch,
Solar-tent drier.
Article Type:
Full Length Research Article
In this study, fish were fermented for 24 h and then dried adopting improved
methods, namely: Use of glucose to reduce fermentation time, clove for its
bactericidal effect and solar tent drier for enhanced drying. The results obtained
indicate a significant decrease (P≤0.05) in the moisture content and a significant
increase (P≤0.05) in protein, fat, and ash contents of the processed products
when compared with the fresh fish sample. An inverse relationship was also
observed between the moisture content and the concentration of other nutrients.
Treated samples varied significantly (P≤0.05) in their protein contents from that
of the control; whereas no significant difference (P≥0.05) was recorded between
the control samples and those treated with a combination of 2 and 0.6% glucose
and clove, respectively. In all cases the value ranged from 60.51±1.85 and
63.69±0.31%, the ash content of the treated samples showed significant increase
(P≤0.05) when compared with the commercial and laboratory controls. There was
no significant difference (P≥0.05) in the carbohydrate content of the controls and
the treated samples when compared with the fresh fish sample. Also, there was a
significant difference (P≤0.05) in the energy values recorded from the controls
and the fresh fish sample [(443.81±1.74 to 444.59±7.43 and 86.57±1.96) Kcal/100 g
respectively]. The energy values for all the treated samples showed significant
differences (P≤0.05) with those of the controls and the fresh sample. This value
ranged between 447.38±1.84 and 455.78±6.10 Kcal/100 g for the treated samples.
It was concluded that a highly nutritious and acceptable Bunyi youri could be
produced from Nile perch when treated with a combination of 2% glucose and
0.6% clove concentrations.
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INTRODUCTION
In Nigeria, fish constitutes about 60% of animal protein
intake (Adeniyi, 1987). This means that shortfall in fish
availability will affect the animal protein intake of people
in this country. Fish also supplies employment opportuni-
ties to many rural dwellers. Furthermore, well processed
*Corresponding author. E-mail: paulidakwo@yahoo.com;
amanjide1964@yahoo.com.
fish from the tropics have a ready market in developed
countries and are thus good foreign exchange earners
(Eyo, 2001). The shortfall in fish supply in the country had
led to a low annual per capita fish consumption rate of
only 7.5 Kg as against 15 Kg per annum as
recommended by the FAO (Adewuyi et al., 2010). There
are various reasons for the merits of eating fish. One of
such reason is that fish is less tough and more digestible
compared to beef, mutton, chicken and bush meat. This
is possible because of the greater ratio of muscle protein