Chuyển đến nội dung chính

Challenges for the Rendering of Aquaculture Products

Challenges for the Rendering of Aquaculture Products

Products from marine by-products are very perishable, so they need to be stored immediately after production. However, seafood processing facilities in many developing countries are small and medium-sized, with insufficient infrastructure to adequately preserve them.

Therefore, investment (finance, infrastructure and human resources) in this area may not be profitable. With products for human consumption, waste products and by-products need to be processed and produced according to quality management systems based on good production and hygiene, managed through hazard analysis and Critical Control Point (HACCP).

The major challenge with gelatine extraction from fish is the identification of raw materials, and the different qualities of raw materials in terms of color and odor. Furthermore, gelatine from aquaculture can not currently compete on price with mammalian gelatine. The profitability of chitosan from shrimp waste is only 10% (as reported) and to produce good quality chitosan, it is necessary to properly preserve shrimp waste. In addition, production in toxic and acidic environments requires specialized equipment and special working conditions.

There has been much scientific research to increase the use of waste products and by-products for use in the “nutritional medicine” and pharmaceutical industries, but there are still barriers to commercialization. these products.

For example, pigments such as astaxanthin in crustaceans must compete with synthetic astaxanthin and astaxanthin derived from microalgae produced at very cheap prices. Genetic microbes are commonly used to produce the same enzymes as the phosphatase alkaloids from shrimp and uracil-DNA glycosylase isolated from Atlantic cod liver. Initially, these enzymes were found and isolated from byproducts, waste products in shrimp processing and Atlantic cod.

For pharmaceutical products, functional foods and supplements on the market, specific health certifications must be administered by regulatory agencies such as the US Food and Drug Administration (FDA), The European Food Safety Authority (EFSA), or the Japan Food Security Specialist (FOSHU).

To achieve accreditation, these products must provide positive results from human studies, but such research is often costly.

The most practical application of products from seafood by-products is to make food directly or indirectly through the use of raw materials. The use of by-products, by-products to isolate high-value biologically active compounds in many cases is unrealistic (except for the extraction of omega-3s).

The important reason is: lack of market for the product; Existing / defective high quality items are very limited; Small-scale production is very costly and involves many difficulties in providing the necessary documentation for product certification.

The trend towards reduced waste and increased reuse of waste / by-products in fisheries processing can only develop when these challenges are overcome. As a result, the economic, social and environmental benefits are enhanced.

In addition, the development of science and technology combined with improved investment and production processes in the processing industry will be important drivers and foundation for this trend.
Nhãn:

Nhận xét

Đăng nhận xét

Bài đăng phổ biến từ blog này

PHARMACEUTICAL NUTRIENTS AND BIOLOGICALLY ACTIVE INGREDIENTS

Pharmaceutical nutrients and biologically active ingredients EPA and DHA are probably the most successful commercial fatty acids derived from fish oil. Despite its slow development since 2000, the omega-3 market has grown considerably recently. According to some market research, in 2010 the global demand for omega-3 components was about $ 1.595 billion. The pharmaceutical and food industries have been using gelatine to enhance adhesion, elasticity, firmness and stability. Global gelatin production in 2011 was about 348,900 tons, with 98-99% extracted from skins and bones, only about 1.5% were extracted from fish and other sources. The market price of fish-derived gelatine tends to be about 4-5 times higher than that of mammals and has better application in foods for Muslims and Jews. With its rheological properties, gelatin from warm water fish can replace “cow’s gelatine” in food and pharmaceutical coatings. Gelatin from cold water fish has many applications in frozen and frozen
Đăng nhận xét
Đọc thêm

Make use of by-products from seafood processing

Currently, around 70 million tons of seafood are being processed in the form of fillets, frozen, canned or impregnated. Most of these processes release a large number of by-products and waste products. Specifically, in 2011, while global tuna production was about 4.76 million tonnes, canned tuna products were only nearly 2 million tonnes. Solid waste or by-products disposed of canned tuna (including heads, skeletons, viscera, gills, dark meat, ventrals and skin) may account for about 65% of the raw material. head. Reporting data in the tuna meat industry also showed that waste products, by-products accounted for about 50% of the total raw material. When filleting fish, the product usually only accounts for 30-50% of the original material. Global salmon production in 2011 was about 1.93 million tons and most products were fillets, which were reported to account for about 55% of the total volume. A large number of tilapia and pangasius fish fillets are currently on the market with
Đăng nhận xét
Đọc thêm