scholarly journals Production And Characterization Of Protein Hydrolysate: Effective Utilization Of Trawl Bycatch

Author(s):  
Yuvaraj D ◽  
Sathyakala K ◽  
Gnanasekaran R ◽  
Chandran Masi

Abstract Background: Fishing is an industry that provides livelihood to millions who live along the coast and delicious delicacies for the rest. Hence, improving the profitability of the trade has been of utmost importance and has been the research focus of major fishery industries around the globe. Exploring the potential commercialization of wastes produced by the industry is one way to achieve this goal. In this context, the waste may point towards discarded fishes, fish parts, etc. In this research, we are going to study the possibility to efficiently extract Fish Protein Hydrolysate (FPH) which has a huge commercial value from discarded by-catch fishes. Trawling is a fishing method which when employed often results in the capture of a huge quantity and diversity of non-target species due to lack of selectivity of the trawl net. These non-targeted species often termed as by-catch, are often disposed of. These under-valued species are targeted in this work for producing Fish Protein Hydrolysates (FPHs) using commercially available enzymes such as Papain (FPH1), Proteinase K (FPH2), and their functional characteristics such as solubility, foaming and emulsifying properties, oil and water-binding capacity are compared. The experimental design is as shown in the graphical abstract below.Results: Among the two, Fish Protein Hydrolysates (FPHs), prepared FPH1 has comparatively slightly improved functional properties. Conclusion: It offers the potential to be used for various applications in the food industries.

2015 ◽  
Vol 6 (4) ◽  
pp. 1261-1267 ◽  
Author(s):  
Raúl Pérez-Gálvez ◽  
Pedro J. García-Moreno ◽  
Rocío Morales-Medina ◽  
Antonio Guadix ◽  
Emilia M. Guadix

Fish protein hydrolysates from six fish discard species in the West Mediterranean Sea were tested for theirin vitrobile acid binding capacity.


Author(s):  
Srinivasan S ◽  
◽  
Devika R ◽  
Shanmugam M ◽  
◽  
...  

Taking into account of using the fish industry wastes and for expanding the incentive to a few under used fish species, protein hydrolysates from fish proteins are being set up by a few specialists everywhere throughout the world. Fish Protein Hydrolysates (FPH) are breakdown results of enzymatic transformation of fish proteins into smaller units like peptides, which typically contain 2-20 amino acids. Their worth has been expanded by utilizing them as fluid bio compost, feed supplement and bioorganic fertilizer. From the research carried out at our laboratory, Dry fish silver belly with both microbe and enzyme acquired from cultural broth of lactobacillus species, catalyst papain demonstrated positive upgrade of development and advancement of plants tested. In view of the yield of FPH concentrates from both microbial and enzymatic hydrolysis, the pace of seedling life list in Urad dhal, green gram and okra got higher in 0.1-0.5% convergence of dry fish hydrolysate from lactobacillus treated than in the control variation. With respect to the seeds of urad dhal, green gram and okra, the germination rate and seedling energy list from treated seeds surpassed control by 19.11-128.71%. The positive effect of dry fish protein hydrolysate by microbial procedure on germination rate, seedling life record rate in 3 kinds of seeds is the reason for the improvement of protein hydrolysate item for application in crop creation utilizing dry fish squanders. The Seedling grown in 0.5% concentration of fish hydrolysates showed significant increase in seedling vigour index of Urad dhal (13.29 ± 0.12 %), Green gram (14.1 ± 0.17%) and Okra (5.39 ± 0.43 %) was recorded through one way Analysis of Variance (ANOVA). By HPLC determination amino acid results determined that protein hydrolysates process can be stopped on 7th day (643.56ppm) whereas @ 10th day amino acid decreased (326.24ppm). Results suggest that probiotic assumes a superior job in dry fish protein hydrolysates than compounds when contrasted and yield and prudent astute.


2016 ◽  
Vol 116 (8) ◽  
pp. 1336-1345 ◽  
Author(s):  
Aslaug Drotningsvik ◽  
Svein A. Mjøs ◽  
Daniela M. Pampanin ◽  
Rasa Slizyte ◽  
Ana Carvajal ◽  
...  

AbstractThe world’s fisheries and aquaculture industries produce vast amounts of protein-containing by-products that can be enzymatically hydrolysed to smaller peptides and possibly be used as additives to functional foods and nutraceuticals targeted for patients with obesity-related metabolic disorders. To investigate the effects of fish protein hydrolysates on markers of metabolic disorders, obese Zucker fa/fa rats consumed diets with 75 % of protein from casein/whey (CAS) and 25 % from herring (HER) or salmon (SAL) protein hydrolysate from rest raw material, or 100 % protein from CAS for 4 weeks. The fatty acid compositions were similar in the experimental diets, and none of them contained any long-chain n-3 PUFA. Ratios of lysine:arginine and methionine:glycine were lower in HER and SAL diets when compared with CAS, and taurine was detected only in fish protein hydrolysate diets. Motifs with reported hypocholesterolemic or antidiabetic activities were identified in both fish protein hydrolysates. Rats fed HER diet had lower serum HDL-cholesterol and LDL-cholesterol, and higher serum TAG, MUFA and n-3:n-6 PUFA ratio compared with CAS-fed rats. SAL rats gained more weight and had better postprandial glucose regulation compared with CAS rats. Serum lipids and fatty acids were only marginally affected by SAL, but adipose tissue contained less total SFA and more total n-3 PUFA when compared with CAS. To conclude, diets containing hydrolysed rest raw material from herring or salmon proteins may affect growth, lipid metabolism, postprandial glucose regulation and fatty acid composition in serum and adipose tissue in obese Zucker rats.


2015 ◽  
Vol 178 (6) ◽  
pp. 1095-1112 ◽  
Author(s):  
I. Godinho ◽  
C. Pires ◽  
S. Pedro ◽  
B. Teixeira ◽  
R. Mendes ◽  
...  

Author(s):  
Tavani Rocha Camargo ◽  
Simon Khelissa ◽  
Nour Eddine Chihib ◽  
Emilie Dumas ◽  
Jian Wang ◽  
...  

2017 ◽  
Vol 4 (1) ◽  
pp. 39
Author(s):  
Achmad Poernomo

The viscera are usually wasted in the processing of cowtail ray, although they may contain many valuable substances such as proteolytic enzymes. This study investigates the possibility of using these enzymes to produce fish protein hydrolysates


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