Overview
FrançaisABSTRACT
By-products make up 50% of the weight of marine catches. Composed of parts not consumed directly by humans (heads, bones, skin, shells, etc.), they are rich in proteins, lipids, minerals and active entities of interest. They can be processed into various products: fishmeal, hydrolyzates, oil, mince, aromas, collagen, minerals, fertilizer, etc. Various processes are needed to stabilize, separate, purify, functionalize and concentrate the substances of interest. This article details the different marine byproducts, the processing and technologies used to transform them, and the applications of the end-products.
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Read the articleAUTHORS
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Charles DELANNOY: Chemical engineer, École des Hautes Études Industrielles, Lille - Manager, Procidys, Wimereux, France
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Mathilde COQUELLE: Agri-food engineer from ISA (Institut supérieur d'agriculture) - Project Manager, Procidys, Wimereux, France
INTRODUCTION
Marine by-products represent on average 50% of the weight of the caught product. Only 50% is directly consumed in the form of fillets or meat. Adding value to marine by-products is therefore a real challenge.
Against a backdrop of declining landed volumes, adding value to co-products can provide :
additional income for fishing, primary and secondary processing companies;
a complementary source of marine proteins on the food market;
high value-added molecules with interesting properties;
a response to the issue of sustainable development by transforming waste into raw materials, thus contributing to a process of resource preservation and optimization of resource use.
Various processes are used to obtain products with varying degrees of added value: cooking in the case of flour, hydrolysis to solubilize proteins, mechanical separation to obtain pulp, centrifugal decantation to extract oil and solubilized proteins, filtration to extract and concentrate molecules of interest, and drying to stabilize the products obtained.
Technological choices depend on the volumes available, the investment required, the content of compounds of interest - which varies widely from one species to another - and market expectations.
The article presents the main uses and illustrates the wide range of possible uses for these co-products.
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KEYWORDS
hydrolyzates | fish meals | fish oils | marine ingredients
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Adding value to marine by-products
Bibliography
Websites
http://www.nutraqua.com (nutritional composition of aquatic products)
http://agriculture.gouv.fr/les-sous-produits-animaux-et-les-produits-qui-en-sont-derives
Regulations
Regulation (EC) no. 1069/2009 of October 21, 2009 laying down health rules concerning animal by-products and derived products not intended for human consumption.
Commission Regulation (EU) No 1259/2011 of December 2, 2011 amending Regulation (EC) No 1881/2006 as regards maximum levels for dioxins, dioxin-like PCBs and non-dioxin-like PCBs in foodstuffs.
Commission Regulation...
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Fishmeal and fish oil production equipment :
Haarslev http://www.haarslev.com/Products/Fish-Meal-and-Fish-Oil , distributed in France by France Danemark Matériel
Centrifugal decanting equipment...
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