The problem to be solved
LAnimal-derived blood is a valuable raw material in the production of food, feed and technical products. Blood should be purposefully and rationally used for its biological value and chemical composition (in particular the amount and composition of protein). Insufficient usage of blood (especially for technical purposes) is in most cases related to two reasons.
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The first reason is the lack of technical equipment or the limited time of the technological process for the collection of available animal-derived blood.
The second reason is the fact that the market for blood-derived products for food consumption is limited because the assortment of available blood-derived products is modest.
After the collection of blood forfood production (on the left figure), blood suitable for technicalproduction usually goes to the sewage which means wasting valuable raw material and polluting the natural environment.
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Figure 1. Collection of blood in a slaughterhouse. The blood will be used in food production.
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| It is permitted to use animal-derived blood as a feed component or for technical purposes, for example as raw material for glues in the veneer and furniture industry, as a paint component in the textile and printing industry, as a fertilizer additive, as a foaming agent in fire extinguishers etc. |
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Sweet snacks based on blood powder
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The main objective of the project was to decrease the disposal of secondary raw material, i.e. blood from meat processing, by application of rational methods, as well as to develop innovative, high quality and healthy blood-based food products with rich taste.
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“The market for blood products for food consumption is limited because the available assortment is very modest.” Priit Lumi, the research partner of the project
Project outcomes
In the course of the project, solutions suitable for small slaughterhouses for the collection and processing of blood to be used in food, as well as valorisation of blood components were researched. The chemical composition of blood of different origins (from bovine animals, including organic bovine animals, domestic pigs, wild boars) to be used in food was analysed and the protein, amino acid, fat, mineral and heavy metal content of blood was identified. Recipes of sweet and salty snacks based on blood powder and the technology for producing these snacks were developed. Relevant technological solutions were generated. The nutritional value of the developed products was assessed and the iron content of the products was evaluated in comparison with the suggested daily iron need of a person.
The results were compared to competing products on the market. The developed products were tested on consumers to assess how they accept the model products. The results revealed that consumers´ favourites were hematogen-flavoured balls from rye flower and hematogen produced according to the method of producing toffee.
| Support |
Development of new products, practices, processes and
technologies (sub-measure 16.2 of the ERDP 2014-2020) |
| Beneficiary |
Linnamäe Lihatööstus PLC |
| Contact |
Ene Viiard |
| Project period |
April 2016 – March 2018 |
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Estonian National CAP Network 
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