scholarly journals A comparative study on proximate composition of fresh and salt-boiled prawn (Macrobrachium rosenbergii) frozen stored at -20oC

2016 ◽  
Vol 3 (1) ◽  
pp. 241-250
Author(s):  
Shabnam Yasmin Mukta ◽  
Shamsuzzaman Masum ◽  
Jasmin Naher ◽  
Suvash Chandra Chakraborty ◽  
Md Abul Mansur
Keyword(s):  
Comparative Study ◽  
Protein Content ◽  
Proximate Composition ◽  
Frozen Storage ◽  
Macrobrachium Rosenbergii ◽  
Storage Period ◽  
Nutritional Composition ◽  
New Approach ◽  
Fresh Frozen

A study was conducted to evaluate the proximate composition of fresh and salt-boiled prawn stored at -200 C. The study was focused on comparative study on proximate composition, nutritional status and quality of the prawn in wet matter basis. The collected fresh prawns were boiled in 2.5% brine for 15 minutes followed by freezing at -200 C to evaluate the quality of prawns at 16 weeks period of frozen storage. The sample was stored separately in individual boxes for every experimental uses. The proximate composition of the sample during frozen storage (16 weeks) was evaluated by studying organoleptic assessments, protein, lipid, ash, moisture and TVBN. The fresh prawn during frozen storage was organoleptically accepted up to 12 weeks but unaccepted after 16 weeks of storage whereas the salt-boiled frozen prawn was remained acceptable after 16 weeks of frozen storage at -200C. The initial protein content of fresh prawn was decreased gradually with the storage period. At the end of the 16 weeks of frozen storage, initial protein content of fresh prawn was decreased from 22.36 ±0.45% to 16.24 ±0.27% and protein content of salt-boiled prawn was decreased from 29.69 ±0.28% to 22.89 ±0.29%. The initial lipidcontent of fresh prawn decreased gradually with the storage period and at the end of the 16 weeks frozen storage it decreased from 2.4±0.16% to 1.24 ±0.13% and for the salt-boiled frozen prawn it decreased from2.56 ±0.11% to 1.68 ±0.26%. The initial ash content of fresh prawn decreased gradually with the storage period and at the end of the 16 weeks frozen storage, it decreased from 2.42±0.21% to 1.52±0.23%, whereas for salt-boiled prawn it decreased from2.89 ±0.19% to 1.93 ±0.18%.The initial TVB-N content increased gradually with the storage period and at the end of the 16 weeks of frozen storage it increased from 10.23±0.26 mg/100g to 32.01±1.36 mg/100g in fresh frozen prawn, where in the salt-boiled prawn, it was increased from 8.35 ±0.28 mg/100g to16.82 ±1.09mg/100g. From the findings it can be concluded that, the quality & nutritional composition of the salt-boiled prawn remains better than that of fresh un-boiled one during long storage period. So, the process for frozen storage of salt-boiled prawn at -200 C can be considered as a new approach in fish preservation.Res. Agric., Livest. Fish.3(1): 241-250, April 2016

scholarly journals Mince from Tilapia-Backbone: Effects of Washing and Cryoprotectant Addition during Frozen Storage

2016 ◽  
Vol 5 (5) ◽  
pp. 32
Author(s):  
Wendy L. Lizárraga-Mata ◽  
Celia Olivia García-Sifuentes ◽  
Susana M. Scheuren-Acevedo ◽  
María E. Lugo-Sánchez ◽  
Libertad Zamorano-García ◽  
...  
Keyword(s):  
Oreochromis Niloticus ◽  
Proximate Composition ◽  
Storage Time ◽  
Frozen Storage ◽  
Storage Period ◽  
Microbial Load ◽  
The Stability ◽  
Sensorial Analyses

Mince obtained from tilapia (Oreochromis niloticus) (backbone) was evaluated; the effect of washing and the addition of a commercial cryoprotectant on the quality of the mince obtained were also assessed. Physicochemical, microbiological and sensorial analyses were carried out at 0, 15, 30, 45, 60, 90, 120 and 180 days of frozen storage (-20 ºC). During washing treatment 91% of lipids was removed from the mince (p<0.05). The proximal composition was stable during the storage time (p>0.05). Parameters such as L* and “θ” increased while a*, b*, chroma and TBARS decreased due to the washing treatment (p<0.05). The cryoprotectant effect resulted in a decrease of L*, “θ” (Hue) and TBARS (p<0.05). The addition of the cryoprotectant caused a significant decrease of L*, “θ” and TBARS. During the storage period, the proximate composition was stable and the microbial load remained below the official limits. The panelists detected changes on the odor, color and texture in the mince evaluated. Results suggest that the washing treatment improved the stability of the mince compared to the addition of cryoprotectant.

scholarly journals Effects of frozen storage on the proximate composition and formaldehyde content in some selected fish from three different sources of southern Bangladesh

2021 ◽  
Vol 32 (2) ◽  
pp. 303-312
Author(s):  
MD. BOKTHIER RAHMAN ◽  
MD. SAZEDUL HOQUE ◽  
SUPRAKASH CHAKMA ◽  
SHAIDA AKTER ◽  
S.M. OASIQUL AZAD ◽  
...  
Keyword(s):  
Marine Fish ◽  
Lipid Content ◽  
Proximate Composition ◽  
Frozen Storage ◽  
Ash Content ◽  
Health Concern ◽  
Formaldehyde Content ◽  
Fish Samples ◽  
Fresh Frozen ◽  
Different Sources

The study was conducted in aims to investigate the effects of frozen storage and cooking conditionson proximate compositions and formaldehyde content (FA) in some selected fish from three different sourcesin Bangladesh. Proximate composition in fresh and final frozen samples was determined by standard AOACmethod and FA content in fresh, frozen stored, and cooked samples was determined by spectrophotometricmethod. Among the studied fishes, marine fish contained higher protein (except Rita), lipid, and ash followedby estuarine and culture fish samples. Protein, moisture and ash content decreased and lipid content increasedsignificantly (p<0.05) during frozen storage for all samples and sources. The FA was lower in cultured fishsamples compared to that of the river and marine fish samples, both at fresh and end of frozen storage. Atfresh condition, FA content in all samples ranged from 0.41 to 0.71µg/g, 0.51 to 0.89µg/g, and 0.73 to1.69µg/g which increased to 0.95 to 2.11µg/g, 1.74 to 1.95µg/g, and 3.22 to 5.20µg/g at end of the storageperiod, respectively (p<0.05). Further, FA content significantly decreased after cooking in all the fishsamples (p<0.05). However, irrespective of fish species and sources, the FA content was higher than WHOrecommended value (0.2 µg/g). The study findings revealed that longer frozen storage of fish could be apublic health concern to the consumers.

scholarly journals Effect of washing time and storage of raw Material on Surimi and Kamaboko of Tilapia (Oreochromis sp.)

2020 ◽  
Vol 7 (3) ◽  
pp. 89
Author(s):  
Eka Saputra
Keyword(s):  
Water Content ◽  
Raw Materials ◽  
Frozen Storage ◽  
Storage Period ◽  
Raw Material ◽  
Minced Fish ◽  
Materials Used ◽  
And Storage

This study aim was to determine the effect of washing and raw materials on frozen storage on the quality of surimi and kamaboko from raw material of tilapia (Oreochromis sp). There were three types of raw materials used, namely minced fish, surimi, and surimi with addition of sorbitol, with three washing treatments and four weeks frozen storage period observed every week. The method used consisted of measurements of pH, water content, bite test, and folding test. Then the results obtained for the best kamaboko tilapia (Oreochromis sp) were obtained from fillet raw materials compared to the raw material of Minced fish and raw materials of Minced Fish + Sorbitol, with a frequency of washing once and frozen storage for 3 weeks.

scholarly journals Effects of traditional fish processing methods on the proximate composition and ph of fish Black pomfret (Parastromateus niger)

10.5219/1294 ◽  
2020 ◽  
Vol 14 ◽  
pp. 271-276
Author(s):  
Ali Aberoumand
Keyword(s):  
Proximate Composition ◽  
Nutritional Value ◽  
Frozen Storage ◽  
Storage Period ◽  
Fish Processing ◽  
Processing Methods ◽  
Nutritive Composition ◽  
Traditional Processing ◽  
Processing Techniques ◽  
Parastromateus Niger

Fish is an important food in many Iranian diets. This is a good source of protein. Fish is the main source of animal protein in Iran. The effects of three different traditional processing methods (freezing, brining and frying) on nutritive composition of halva sia fish stored under ambient room conditions were determined. Fresh halva sia fish were obtained from Behbahan fish market. Cooking and processing techniques were carried out on fish Halva sia Parastromateus niger. The proximate composition of raw Parastromateus niger was affected by cooking and processing techniques that were carried out by AOAC methods. Moisture contents decreased in fried and brined fillet while protein, fat and ash contents were significantly increased in fried fillet. The loss of moisture in fried and brined samples amounted to the highest levels; also the protein and fat value was proportionally high. The fish Parastromateus niger showed a decrease in their contents of moisture and fat as affected by frozen storage periods while ash and protein contents were increased after frozen storage periods. The nutritional value fish Parastromateus niger preserved until the end of the storage period.

scholarly journals The impact of cold chain temperature abuses on the quality of frozen strawberries (Fragaria ×ananassa)

2013 ◽  
Vol 2 (1) ◽  
Author(s):  
Rui Cruz ◽  
Margarida Vieira ◽  
Cristina Silva
Keyword(s):  
Frozen Storage ◽  
Dehydroascorbic Acid ◽  
Storage Period ◽  
Cold Chain ◽  
Fragaria Ananassa ◽  
Frozen Foods ◽  
Real Situation ◽  
Hue Angle ◽  
The Impact

The quality of frozen foods can be negatively affected if improper storage and distribution temperatures are allowed. The objective of this study was to investigate the effect of freeze-thaw cycles, which may occur in the cold chain, on colour (Lab, Total Colour Differences (TCD), chroma and hue angle) and vitamin C (ascorbic and dehydroascorbic acids) content of frozen strawberries (Fragaria ×ananassa, Duschesne, cv. Selva). A plan of temperature abuses (TAs) was established, based on a real situation, and applied to frozen strawberries during a four month frozen storage period. The results showed that the lightness (L) was the only parameter that was not significantly affected by range of TAs studied. The colour showed some variation on the parameters a, b, TCD, chroma and hue angle. During TAs, ascorbic acid decreased about 75% and dehydroascorbic acid increased 73%. The non-abused strawberry samples showed better overall appearance than the abused samples.This work contributes to an understanding of the quality changes of frozen strawberries that might occur during frozen storage and cold chain distribution.

scholarly journals Proximate composition of two puffer fish species, Leiodon cutcutia and Dichotomyctere fluviatilis of Bangladesh

2019 ◽  
Vol 8 (1) ◽  
pp. 25-33
Author(s):  
Ishtiak Ahmed Chowdhury ◽  
Md Rakibul Hasan ◽  
Suraiya Parveen ◽  
Shuvra Kanti Dey ◽  
Md Baki Billah
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Fish Species ◽  
Lipid Content ◽  
Proximate Composition ◽  
Nutritional Value ◽  
Nutritional Composition ◽  
Ash Content ◽  
The Body ◽  
Puffer Fish

Protein, lipid, ash and moisture content in the body muscles of two commonly available puffer fish species in Bangladesh (Leiodon cutcutia and Dichtomyctere fluviatilis) have been analysed from January 2018 to June, 2018. The puffer fish species were collected from different habitats i.e., Leiodon cutcutia from freshwater and Dichtomyctere fluviatilis from estuarine water. The percentage of the proximate composition varied in different months in both the species. In Leiodon cutcutia, moisture content fluctuated from 79.32% to 87.61% with an average of 83.75%; protein content from 6.35% to 13.31% with an average of 9.49%; lipid content from 1.57% to 2.32% with an average of 1.92% and ash content from 2.30% to 3.27% with an average of 2.84%. In Dichotomyctere fluviatilis, moisture content fluctuated from 73.77% to 84.18% with an average of 77.49%; protein content from 10.03% to 19.77% with an average of 16.80%; lipid content from 0.92% to 1.71% with an average of 1.32% and ash content from 2.77% to 3.34% with an average of 3.05%. The comparative evaluation of the nutritional value of the studied fish species revealed that the puffer fish from estuarine environment might contain higher amount of nutrients. Thus, proper utilization of this species towards sustainable management, nutritional composition and biosecurity issues will lead to achieve sustainable blue economy. Jahangirnagar University J. Biol. Sci. 8(1): 25-33, 2019 (June)

scholarly journals Effect of Dietary Modulation of Selenium Form and Level on Performance, Tissue Retention, Quality of Frozen Stored Meat and Gene Expression of Antioxidant Status in Ross Broiler Chickens

Animals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 342 ◽  
Author(s):  
Doaa Ibrahim ◽  
Asmaa T.Y. Kishawy ◽  
Safaa I. Khater ◽  
Ahmed Hamed Arisha ◽  
Haiam A. Mohammed ◽  
...  
Keyword(s):  
Growth Performance ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Frozen Storage ◽  
Storage Period ◽  
Dietary Supplementation ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Fresh State

This study compares between different selenium forms (sodium selenite; SeS, selenomethionine; Met-Se or nano-Se) and levels on growth performance, Se retention, antioxidative potential of fresh and frozen meat, and genes related to oxidative stress in Ross broilers. Birds (n = 450) were randomly divided into nine experimental groups with five replicates in each and were fed diets supplemented with 0.3, 0.45, and 0.6 mg Se/kg as (SeS, Met-Se), or nano-Se. For overall growth performance, dietary inclusion of Met-Se or nano-Se significantly increased (p < 0.05) body weight gain and improved the feed conversion ratio of Ross broiler chicks at the level of 0.45 and 0.6 mg/kg when compared with the group fed the same level of SeS. Se sources and levels significantly affected (p < 0.05) its concentrations in breast muscle, liver, and serum. Moreover, Se retention in muscle was higher (p < 0.05) after feeding of broiler chicks on a diet supplemented with Met-Se or nano-Se compared to the SeS group, especially at 0.6 mg/kg. Additionally, higher dietary levels from Met-Se or nano-Se significantly reduced oxidative changes in breast and thigh meat in the fresh state and after a four-week storage period and increased muscular pH after 24 h of slaughter. Also, broiler’s meat in the Met-Se and nano-Se groups showed cooking loss and lower drip compared to the SeS group (p < 0.05). In the liver, the mRNA expression levels of glutathione peroxidase, superoxide dismutase, and catalase were elevated by increasing dietary Se levels from Met-Se and nano-Se groups up to 0.6 mg/kg when compared with SeS. Therefore, dietary supplementation with 0.6 mg/kg Met-Se and nano-Se improved growth performance and were more efficiently retained than with SeS. Both sources of selenium (Met-Se and nano-Se) downregulated the oxidation processes of meat during the first four weeks of frozen storage, especially in thigh meat, compared with an inorganic source. Finally, dietary supplementation of Met-Se and nano-Se produced acceptable Se levels in chicken meat offered for consumers.

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