Biochemical Quality Assessment of Fish Powder

Abstract

The study carried out with a view to determining proximate and mineral composition of fish powder of five freshwater fish samples (Hypophthalmicthys molitrix, Labeo rohita, Cirrnina mrigala and Puntius sophore and small prawns). The samples collected from five local fish markets of Rajshahi city corporation were subjected to washing, gutting drying and grinding in order to make powder and homogenized sample which were preserved into plastic container for chemical analyses. All the activities were conducted in the laboratory of department of Fisheries, University of Rajshahi, Bangladesh. Major nutrient compositions of powder products such as protein, lipid, moisture, ash, carbohydrate, phosphorus, iron and calcium were estimated. Chemical compositions were found to vary among the species. The protein, lipid, moisture and ash content of five samples ranged from 54.31 (P. sophore) to 68.90% (small prawns), 13.33 (P. sophore) to 19.33% (L.rohita), 11.55 (L. rohita) to 13.95% (H. molitrix) and 0.16 (small prawns) to 0.44% (C. mrigala), respectively. The highest value of carbohydrate was 19.23% (P. sophore) and the lowest was 1.75% (C. mrigala). The calcium, iron and phosphorus content of the selected species varied from 2.49 (L. rohita) to 2.55g/kg (small prawns), 0.043 (H. molitrix and P. sophore) to 0.184g/kg (C. mrigala) and 0.94 (L. rohita) to 1.91g/kg (P.sophore), respectively.

Development and Biochemical Composition Assessment of Fish Powders from Bangladeshi Indigenous Fish Species and Shelf-Life Characteristics Evaluation During 90 Days of Room Temperature (27°C - 30°C) Storage

“…The ash content of the five developed dried fish powders ranged from 7.66% to 9.19% ( Table 2). The highest content of ash was found in the sample P. puntio (9.19%) [11]. Our study resembles with study [43] where they found the ash content of dried burrito fish powder (14.0%) which is mostly consistent with our study.…”

“…Our investigation also found that the moisture content of L. rohita was below the study by [42] in which they found the moisture contents of L. rohita 9.07%. Another study [39] determined that the mois- .50%, which is significantly greater than our investigation [11]. Moreover, our findings are below the research by [11] where they found the moisture content of dried H. molitrix (13.95%) and L. rohita (11.55%) which are greater than our investigation.…”

“…The trace element contents are presented in ( [47]. One study reported that H. molitrix and L. rohita fish powder contain calcium content as 2.52 g/kg and 2.5 g/kg respectively [11]. The highest iron content was found in H. molitrix (0.15g/kg) and minimum in A. grammepomus (0.13 g/kg).…”

“…Since the dried protein-enriched fish powders are rich in nutrients and have an extended shelf-life, these could be supplied in global markets where demands for nutrient-rich dry foods are high. Furthermore, since the fish powders are the affluent source of nutrition, understanding of nutritional compositions of fish powder is fundamental in order to balance its value as food with other foods especially protein-enriched foods [11]. Alongside, it is also compulsory to have decent figures on the nutritional composition of fish powders in order to make the preeminent use of them as food resources and to build up the technology of processing fish powder and other fisheries foodstuffs [12].…”

Proximate Composition and Mineral Content of Traditionally Dried Fish Products from Selected Parts of Ethiopia

“…In general, this research found significant variations between the compositions of the different dried fish products. Similar reports have been reported from previous studies [12,13,15]. The observed variation in composition could be due to various factors such as species, sex, maturity state, feeding condition and seasonal variations.…”