Abstract
The study was designed to investigate the effect of both the duration of storage and treatments (lemon, mustrard and garlic) methods on minerals (Ca, P, Fe, Mn, Cu, Mg and Zn) value of smoked hilsa in six selected regions (Chandpur, Barisal, Patuakhali, Bhola, Shariatpur and Cox’s Bazar). Minerals (Ca, P, Fe, Mn, Cu, Mg and Zn) composition was increased by treatments but gradually decreased variedly with duration of storage smoked hilsa. The calcium (Ca), phosphorus (P), iron (Fe), manganese (Mn), copper (Cu) magnesium (Mg) and zinc (Zn) were found 910.55±11.79 to 853.57±11.09 mg/100g, 228.53±4.37 to 83.60±8.75 mg/100g, 12.45±0.97 to 7.07±1.85 mg/100g, 21.58±0.48 to 7.89±0.75 mg/100g, 3.15±0.16 to 0.90±0.05 mg/100g, 60.54±10.66 to 36.31±1.85 mg/100g and 2.97±0.10 to 0.92±0.02 mg/100g respectively. Generally, the minerals reduced more in the first month of storage. The results suggest that storage period to be a negative effect on the minearls values of smoked hilsa. Hence, smoked hilsa should be consumed while fresh and if it is to be stored, the period must be as short as possible to provide optimal levels of minerals.
Highlights
Minerals are essential nutrients, they are components of many enzymes and metabolism, and contribute to the growth of the fish [1]
The total content of minerals in raw flesh of marine fish and invertebrates is in the range of 0.6–1.5% of wet weight [3]
The fish oil contain high amount of polyunsaturated fatty acid that reduce the serum cholesterol to prevent a number of coronary heart diseases
Summary
They are components of many enzymes and metabolism, and contribute to the growth of the fish [1] Minerals such as iron (Fe), copper (Cu) and manganese (Mn) are essential and play important roles in biological systems [2]. Fish meat is a rich source of minerals and the most abundant micro-elements are iron (Fe) and copper (Cu) [7]. These minerals are generally higher in marine fish than in fresh water fish [8]. Mohajira Begum et al.: Effect of Treatments (Lemon, Mustard and Garlic) on the Minerals Value of Smoked Hilsa (Tenualosa ilisha) During Storage Period anadromous fish high in fat and hailed as ‘macher raja-ilish’ in Bangladesh. This study was undertaken to create a base line data on the mineral composition of the smoked hilsa during different storage condition
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