1、Production of fish protein hydrolysates step by step: technological

Fish protein hydrolysates (FPH) are a product made from fish or fish material by the method of protein hydrolysation (breakage of proteins from which fish tissues are constructed into smaller parts—peptides and finally into amino acids).

2、Valorization of fish processing by

Handling and processing of fish affects the amount and quality of RRM generated. This includes operations like handling of the catch, de-heading, gutting, scaling, fin removal, deboning, filleting, and production of specific portion sizes, but also processes like freezing, thawing, smoking, and food production into a range of consumer products.

3、Fish protein hydrolysate production, treatment methods and current

Three different methods can be used to prepare protein hydrolysates from fish processing discards, namely the acid hydrolysis, alkali hydrolysis, and enzymatic process.

4、Fish protein hydrolysates production

Fish hydrolysates processing using enzymes is the preferred fish protein concentrate process for fish by-products from filleting operations. It is used to produce high-quality collagens and peptides, flavour ingredients for broth and fish sauces, and attractants for fish feed and pet food.

Production of fish protein and fish oil for human consumption

The protein content of FPC depends on the raw material used and the extent to which water has been removed, but the products normally contain at least 65 percent protein and, in type A, up to 80 per cent (FAO 2001).

(PDF) Production of fish protein hydrolysates step by step

The process considers three stages: fish wastes pasteurization, solubilization, and protein hydrolysis. Solubility is increased with water, and the fish wastes/water ratio used for the...

Development of fish protein powder as an ingredient for food

Several methods are used to separate proteins from fish flesh (Fig. 1). They can be classified as repeated water washing and refining, pH-shift method, solvent extraction method, heat treatment, enzyme/acid hydrolysis and a combination of various methods. Fig. 1.

Protein Hydrolysates from Fishery Processing By

This review will discuss the functional properties of fishery by-products prepared using hydrolysis and their potential food applications. It also reviews the structure–activity relationships of the antioxidant activity of peptides as well as challenges to the use of fishery by-products for protein hydrolysate production.

A review on the processing of functional proteins or peptides derived

Large quantities of protein-rich by-products are generated by the fish processing industry. These by-products can be used in the development of new bio-based ingredients.

Production of Fish Protein Hydrolysates by Acid and Enzymatic Hydrolysis

Abstract—In this study, two hydrolysis methods, acid hydrolysis and enzymatic hydrolysis, were proposed to produce fish protein hydrolysates (FPH) from 72% of protein in dry basis of low-valued marine fish. Both methods showed an ability to hydrolyse fish protein to FPH.

Fish protein is an essential protein source widely used in the food, health product, and feed industries. The processing procedure for fish protein typically involves the following steps:

1. Raw Material Selection and Preparation

   • Fresh fish species such as cod or salmon are selected as raw materials.
   • Preprocessing removes impurities like skin, internal organs, and scales.
   • The raw materials are cut into appropriately sized slices or chunks based on product requirements.

2. Protein Extraction

   • Methods such as salting or enzymatic hydrolysis are used to extract fish protein.
   • Salting method: Salt is added to fish meat to cause protein swelling through water absorption, followed by mechanical pressing or centrifugation to separate the protein.
   • Enzymatic method: Specific enzymes (e.g., trypsin) break down proteins in fish meat, releasing them into solution.

3. Cleaning and Precipitation

   • Residual salt and impurities are removed by washing the extracted fish protein.
   • Centrifugation or filtration is used to eliminate precipitates, yielding a clear fish protein solution.

4. Concentration and Drying

   • The fish protein solution is concentrated to improve stability and protein content.
   • Concentrated solutions are dried into powder form using spray drying, freeze drying, or similar techniques.

5. Packaging and Storage

   • Dried fish protein powder is packaged to ensure hygiene and safety.
   • Packaged products are stored in cool, dry conditions away from direct sunlight and high temperatures.

6. Quality Testing

   • Composition analysis ensures protein content and quality meet standards.
   • Sensory evaluation assesses color, odor, taste, and other indicators for compliance.

7. Sales and Market Promotion

   • Products are introduced to markets based on demand.
   • Advertising and promotions boost brand visibility and market share.

8. Research and Innovation

   • Product formulations and processes are optimized based on consumer feedback and market trends.
   • New derivative products, such as fish protein capsules or powders, are developed to meet diverse needs.

the fish protein processing procedure includes raw material selection, protein extraction, cleaning, concentration, packaging, quality control, sales, and innovation. These steps may be adjusted or optimized according to specific product types and market demands.