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 ANTIOXIDANT ENZYME ACTIVITY AND FRESH-CUT ARRACACHA QUALITY

2015 ◽  
Vol 39 (3) ◽  
pp. 276-282
Author(s):  
Hêmina Carla Vilela ◽  
Patrícia de Fátima Pereira Goulart ◽  
Kamila Rezende Dázio de Souza ◽  
Ana Carolina Vilas Boas ◽  
Jane Silva Roda ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Antioxidant Enzymes ◽  
Nutritional Value ◽  
Storage Period ◽  
Antioxidant Enzyme Activity ◽  
Useful Life ◽  
Fresh Cut ◽  
Processing Techniques ◽  
And Storage ◽  
Microbiological Aspects

The arracacha is an alternative of fresh-cut product; however it can be easily degraded after the processing techniques. The objective of this work was to evaluate the useful life of fresh-cut arracacha submitted to two types of cuts and storage, as well as to evaluate the activity of antioxidant enzymes. The roots were selected, sanitized and submitted to two cut types: cubed and grated. Then they were evaluated at 3 times: 0, 3 and 7 days. The cutting in cubes provided higher quality and lower SOD, CAT and APX activity. However, the grated product presented higher PG activity and lower PPO activity. The microbiological safety and the nutritional value were maintained in both cuts during the whole storage period. The useful life, regarding the physicochemical, nutritional and microbiological aspects, can be established at 7 days under refrigeration for fresh-cut arracacha.

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 Microbial and Sensorial Quality of Ice Cream Fortified with Oyster (Crassostrea iredalei) Puree

2019 ◽  
Vol 7 (1) ◽  
pp. 295-299 ◽  
Author(s):  
JERSON C. SORIO ◽  
MARIETTA B. ALBINA
Keyword(s):  
Nutritional Value ◽  
Frozen Storage ◽  
Storage Period ◽  
Ice Cream ◽  
Sensory Attributes ◽  
Microbial Count ◽  
Overall Acceptability ◽  
Significant Difference ◽  
Sensorial Quality

Oyster (Crassostreairedalei) are edible bivalve mollusk that contains nutrients that could enhance the nutritional value of dairy products such as ice cream. This study was conducted to determine the microbial and sensorial quality of ice cream fortified with oyster puree at 0% 5%, 10% and 15% concentration during 4 weeks’ frozen storage period. Based on the sensory evaluation results, treatment 2 (10%) obtained the highest overall acceptance mean score of 8.50 (like extremely), but showed no significant difference (p>0.05) with other treatments. The addition of oyster puree did not affect the sensory attributes and the overall acceptability of the products. All treatments were still acceptable on week 4 in terms of sensory attributes. For the basis of microbial analysis, all treatments revealed to have an acceptable microbial count that is below the standard limit of 100,000 CFU/ml (5 log CFU/ml) from week 0 to week 4. Development of ice cream fortified with oyster puree is feasible to increase its nutritional value.

scholarly journals Effect of Processing Methods on Proximate Composition of Cassava Varieties Manihot esculenta (Crantz) Before and After Infestation by Prostephanus truncatus (Horn)

2021 ◽  
pp. 62-72
Author(s):  
Eze U. Miriam ◽  
N. J. Okonkwo ◽  
Iroka F. Chisom
Keyword(s):  
Proximate Composition ◽  
Manihot Esculenta ◽  
Negative Impact ◽  
Storage Period ◽  
Prostephanus Truncatus ◽  
Crude Fibre ◽  
Manihot Esculenta Crantz ◽  
Processing Methods ◽  
Before And After ◽  
Cassava Varieties

In Africa, Prostephanus truncatus is a destructive pest of economic importance which has assumed a serious pest status on stored maize and dry cassava chips. This study investigates the effect of processing methods of cassava varieties Manihot esculenta on the proximate composition before and after exposure to P. truncatus. The four cassava varieties used for this study were; TMS 0505, TME 419, NR 8082 and TMS 0581 subjected to two processing method parboiling and plain sun-drying at temperature 28-34oC and relative humidity of 65-75%. The experiment was carried out in a Complete Randomized Design. Proximate composition was carried out to determine the Moisture, Ash, Crude fibre, Fat, Crude Protein and Carbohydrate of the different samples. Analysis of Variance was used for the statistical analysis of the data obtained. The result reveals that the proximate composition of the sundried chips are significant at P<0.05%. All the proximate contents of the sample were significant at P<0.05% before the introduction of P. trucatus. After the introduction of P. truncatus and the storage period of 30days, the sundried sample had a higher reduction in the moisture contents of TMS 0505 with 13.05±0.00a and carbohydrate contents of NR 8082 with 50.0±0.00a. The activity of P. truncatus also has a negative impact on some of the nutritional components of cassava chips.

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 Changes in traditional building materials: the case of gypsum in Northern Spain

2021 ◽  
Vol 13 (10) ◽  
Author(s):  
Pedro Bel-Anzué ◽  
Kerstin Elert
Keyword(s):  
Building Materials ◽  
European Countries ◽  
Northern Spain ◽  
Monumental Architecture ◽  
Processing Methods ◽  
Structural Applications ◽  
Sustainable Conservation ◽  
Traditional Processing ◽  
Processing Techniques

AbstractThe rural and monumental architecture of Northern Spain gives testimony of the wide-ranging constructive possibilities of traditional gypsum for exterior and structural applications. However, today, gypsum is only used for finishing purposes. By combining a bibliographic review with local visits/interviews and experimental gypsum calcinations, we were able to document traditional processing methods and analyze the factors responsible for the decline of exterior and structural gypsum use. Obtained results are also valid for other European countries and contribute to a better understanding of the technical peculiarities of traditional gypsum, hopefully reviving traditional processing techniques to produce compatible and sustainable conservation materials.

Variations in the traditional processing methods of Pentadesma butracea butter in northern Benin

Food Chain ◽  
2014 ◽  
Vol 4 (3) ◽  
pp. 261-274 ◽  
Author(s):  
Eric Badoussi ◽  
Paulin Azokpota ◽  
Yann Madodé ◽  
Polycarpe Kayodé ◽  
Alphonse Dossou ◽  
...  
Keyword(s):  
Processing Methods ◽  
Traditional Processing

Studi fortifikasi hidrolisat protein udang rebon (mysis relicta) pada mie sagu

2020 ◽  
Vol 6 (1) ◽  
pp. 039
Author(s):  
Trie Omitha Purba ◽  
Suparmi Suparmi ◽  
Dahlia Dahlia
Keyword(s):  
Experimental Method ◽  
Proximate Composition ◽  
Protein Hydrolysate ◽  
Quality Standards ◽  
Processing Technology ◽  
Fish Processing ◽  
Mysis Relicta ◽  
Marine Chemistry ◽  
Randomized Design

The study aimed to determine the effect of rebon shirmp (mysis relicta) protein hydrolisate fortification to the sago noodles and to observe the characteristics of the sago noodles produced. The research was carried on in February – April 2019 in the  Laboratory of Fish Processing Technology, Integrated Laboratories, and the Fisheries and Marine Chemistry Laboratories at the Universitas Riau. The method used was the experimental method, designedas a non-factorial complete randomized design. The treatment conducted was addingof rebon shrimp protein hydrolysate at 4 level concentrations (0%, 5%, 10% dan 15%). The variables assessed were the quality of organoleptic (appearance, texture, odor, flavor) and the proximate composition. The results showed that the proteinhydrolysate of rebon shrimp at concentration of 15% was the best treatment and in accordance to the quality standards of dried noodles (SNI 01-2974-1996), indicated bythe highest organoleptic qualityof the dried noodles produced, including: the appearance that was brown, less attractive, whole, less neat; the texture that was dry and compact; the aroma that was quite fragrant, spesific rebon shrimp; and the taste that was quite tasty and shrimp flavored. The proximate composition ofthe best product was presented by the content of moisture, ash, fat, protein, and carbohydrate at 7.55%,1.02%, 0.17%, 16.76%, and 74.49%, respectively.Keywords: Hydrolysate protein, rebon shrimp, sago noodles

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