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Evaluation of Nutritional Properties of Some Small Indigenous Fishes Species in Bangladesh

Md. Nazmul Hossain
Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, Bangladesh

Mohajira Begum
Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, Bangladesh

Md. Zahurul Haque
Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, Bangladesh

Humaira Afroz
Institute of Food Science and Technology (IFST), Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, Bangladesh

Abstract/ Executive Summary:

Small indigenous fish species (SIS) are cheap and easily available sources of nutrition in Bangladesh due to plenty of water resources. The proximate and mineral composition of 10 diverse SIS have been investigated. Amblypharyngodon mola (Mola) exhibited the highest percentage of both protein (17.95±1.34 %) and lipid (6.28±0.75 %) indicating a potent small fish with higher nutritive value. The lowest quantity of protein (14.29±0.66 %) and lipid (1.54±0.34) experienced in Esomus danricus (Darkina) and Awaous grammepomus (Bele) respectively. Channa punctata (Taki) is quantified as highest (3.47±1.23 mg/100g) in ash content but Gonialosa manmina as lowest (1.49±1.02 mg/100g). The maximum concentration of Ca (289.70±0.68 mg/100g), Mg (182.48 ±0.43) and Fe (2.02±0.49) observed in Chanda nama (Nama chanda), Channa punctata (Taki) and Batasio tengana (Tengra) respectively. The result of our present study implies that the average nutritive values of SIS were adequate in quantities. Hence, increasing the SIS consumption in mass poor people of Bangladesh might be helpful to achieve their nutritional requirement.

Keywords: SIS, Proximate composition, Minerals, Nutritional value

Location: BCSIR, Dhanmondi, Dhaka, Bangladesh.

Start Date:

End Date:

Program Area: Quality and Nutrition

Commodity: Fish

Objectives:

1. To getting informed about the nutritional composition of diverse SIS of Bangladesh in order to properly establish suggestive nutritional diets for mass people.

Methodology:

Collection of samples: The experimental fishes were collected from the three different local fish markets (Kawran Bazar, Town Hall Bazar and Hatirpul Bazar) of Dhaka city. The samples were tightly packed in separate pre-sterile polyethylene bags following the aseptic collection of samples. Then the samples were placed in ice-box and were immediately transported to the Fish Technology Research Section of the Institute of Food Science and Technology (IFST) of Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhanmondi, Dhaka, Bangladesh where the entire experiment was carried out. Finally the average size of each fish species were recorded. Proximate composition analysis: Determination of moisture of the raw fishes were conducted following the AOAC method which the raw fish samples were dried at elevated temperature and reported the loss in weight in terms of moisture. The crude protein of the fish was determined by Micro-Kjeldhal method. Firstly, The percentage of nitrogen of fish samples were calculated and the percentage of protein in the samples were calculated by multiplying the percentage of N with an empirical factor 6.25. Total lipid content of fish samples was accomplished by Bligh and Dyer method and calculated. The ash content of the fish samples were determined as the inorganic residues such as oxides, sulphates, silicates and chlorides left behind, in the dry muscle. The samples heated to the temperatures of 500-600 ºC in a muffle furnace for about 3 hours. Afterwards, the percentage of ash content was calculated. Determination of minerals: Three types of minerals were estimated in this study following AOAC guideline. The calcium content was determined based on the precipitation of calcium oxalate and titration using 0.01N KMnO₄. The magnesium concentration was evaluated using calcium free filtrate (Obtained from the filtrate after precipitation of calcium as oxalate). Iron was determined by UV-visible spectrophotometer (Shimadzu -UV-1800, Shimadzu corporation, Japan) at a wavelength of 540 nm based on the fact that ferric iron gives a blood red color with potassium thiocyanate (KCNS). All of the mineral concentrations were reported as mg/100g of sample. Statistical analysis: All the analyses were performed in three independent experiments for three samples each collected from different regions. The standard deviation as well as arithmetic mean of the triplicate samples were estimated . Data were analyzed and compared by analysis of variance (two factorial ANOVA). Probability level was fixed at p<0.05. Correlation coefficient (r) was calculated for the different parameters to observe their acceptance level.

Source of Information: International Journal of Biosciences Vol. 6, No. 6, p. 102-109, 2015

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The result of our present study implies that despite of some little variations, SIS in Bangladesh exhibited adequate quantities of protein, fat, ash and minerals. The enormous number of people in Bangladesh are poor and unable to afford large fish to their daily diet due to hickey price. SIS on the other hand, are cheap and easily available. Consequently, it can be suggested that small fish species might be a good alternative in mass poor people of Bangladesh to meet their daily nutritional requirement in improving their health status.

Knowledge Management: Journal