Open AccessExtrusion technologies of feed and food including biomass of insects (review)
Author(s) -
В. И. Пахомов,
Sergey Braginets,
О.Н. Бахчевников,
А. С. Алферов,
Dmitri Rudoi
Publication year - 2020
Publication title -
agrarnaâ nauka evro-severo-vostoka
Language(s) - English
Resource type - Journals
eISSN - 2500-1396
pISSN - 2072-9081
DOI - 10.30766/2072-9081.2020.21.3.233-244
Subject(s) - die swell , extrusion , raw material , plastics extrusion , absorption of water , water content , biomass (ecology) , materials science , moisture , pulp and paper industry , food science , agronomy , composite material , biology , ecology , geotechnical engineering , engineering
The review deals with the problems of extrusion of feed and food including biomass of insects. Inclusion of insectsinto the composition of feed and food increases their nutritional value through enrichment with protein and fat. Extrusion ofthe flour from ground and dried insects blended with vegetable raw material, generally presented by grinded grain, is mostcommonly used. However, the blend of crude larvae of insects and grinded vegetable raw materials can be also successfullyextruded. Specific regularities of processes of insect biomass and vegetable raw material extrusion have been developed.It has been established, that with increase in insect content in the extrudate, its color becomes darker, the surface lesssmooth, the structure more layered. The hardness declines, the value of water absorption index decreases, the value of watersolubility index and its moisture content increase. Variation in the rate of raw material feed into the extruder allows tochange the properties of a finished extrudate. As the value of raw materials feed increases, the water absorption index of theextrudate and its moisture content decrease, but the water solubility index increases. Rational parameters of the extrusionprocess general for all blends of vegetable raw materials and insect biomass as well as the nature of their influence on properties of finished extrudate have not been determined yet. The problem of extrusion raw materials for the production of feed andfood containing biomass of insects is promising but requires carrying out supplementary studies.