In Bangladesh, Fish is a major source of daily protein intake of millions of people but most of the fishes are consumed here as fresh fish which is highly susceptible to damage during transportation and marketing. Therefore, an innovative approach was undertaken to process the fish to avoid damage and extend shelf-life while preserving the nutritional qualities to facilitate the more efficient use of fish as a source of protein and other essential nutrients. This study was conducted to develop some dried protein-enriched fish powders from some commonly consumed fish species in Bangladesh and the nutritional, sensorial, and safety qualities were assessed. Five indigenous abundant fish species including small indigenous fish (SIS) and carp fishes namely Awaous grammepomus, Channa punctata, Puntius puntio, Hypophthalmichthys molitrix and Labeo rohita were used for the preparation of dried protein-enriched fish powders. Biochemical, trace elements, sensorial, total viable count (TVC), pH, peroxide value, and moisture reconstitution during 90 days storage period were performed by standard analytical methods. The moisture, protein, fat, ash, carbohydrate (including fiber), and energy contents were ranged from (6.84% to 8.85%), (70.80% to 75.80%), (5.85% to 8.04%),

This study was conducted to estimate the concentrations of 8 trace elements including (Mn, Fe, Cu, Zn, Ni, Ar, Cr, and Pb) and 4 anti-nutritional factors including (saponins, oxalates, phytate, and cyanogenic glycosides) in leaves and stems from Moringa oleifera. The concentrations in samples analyzed were found to be in the range of 0.88-1.88 mg/kg for Mn, 11.95-25.25 mg/kg for Fe, 0.35-1.22 mg/kg for Cu, 6.92-17.96 mg/kg for Zn, 0.03-0.07 mg/kg for Ni, 0.955-1.45 mg/kg for Cr and 0.564-0.85 mg/kg for Pb. However, Arsenic was not detected in all the samples analyzed. As for the anti-nutritional factors, the concentrations in samples analyzed were found to be in the range of 111.35-123.42 mg/kg for saponins, 69.5-509.4 mg/kg for oxalates, and 0.38-0.156 mg/kg for phytate and 316.95-325.27 mg/kg for cyanogenic glycosides. The values of all these elements were found significantly below the recommended maximum tolerable guidelines level proposed by WHO/FAO except for lead (Pb), Pb was found slightly higher than the recommended limit as described. Our findings of this study reveal that most of the trace elements found in M. oleifera are below the recommended maximum tolerable limits; therefore it is safe for both human and animal consumption as well.