TITLE:
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
AUTHORS:
Niaz Mahmud, Shovon Al-Fuad, Shahriar Islam Satya, Abdullah Al Mamun, Suzon Ahmed, Adnan Karim, Monirul Islam, Jannatul Ferdaus, Shofiqul Islam, Nazmus Sakib, Jui Yeasmin
KEYWORDS:
Biochemical Quality, Trace Element, Sensory Evaluation, Microbial Analysis
JOURNAL NAME:
Food and Nutrition Sciences,
Vol.10 No.8,
August
16,
2019
ABSTRACT: 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%), (7.66% to 9.19%),
(3.14% to 6.01%) and (367.50% to 379.61% kcal)/100g respectively.
Highest content of protein was found in A. grammepomus (75.80%)
samples and the lowest in H. molitrix (70.80%) samples. Maximum calcium content was found in sample L. rohita (2.54 g/kg) and minimum in C. punctate as (2.43 g/kg). Maximum iron content was found in H. molitrix (0.15 g/kg) and minimum in A. grammepomus. As for the phosphorous content the L. rohita samples contained the
highest (1.4 g/kg) and the lowest in C. punctate (0.73 g/kg) samples. The pH, peroxide value (mEq of O2/kg of fat), and moisture
reconstitution (g/100g) during 90 days were ranged from (5.30 to 8.17), (8.60
to 16.77), and (6.84 to 13.83) respectively. Microbial loads over the 90 days
period were in acceptable range at the end of 90 days storage period. On the
basis of biochemical qualities, sensorial and microbial attributes our findings
suggest that the dried fish powders are enriched with macro and micro-nutrients
especially proteins and could safely be used at least up to 3 months for food
applications.