METHOD FOR TREATMENT OF INSECTS, INCLUDING SEPARATION OF CUTICLE FROM SOFT PART OF INSECTS, USING BELT SEPARATOR, WITH SUBSEQUENT SEPARATION OF SOFT PART INTO THREE FRACTIONS Russian patent published in 2023 - IPC A23K10/20 A23K40/10 A23J3/04 

FIELD: fodder industry.

SUBSTANCE: invention relates to a method for treatment of insects, including separation of the cuticle from a soft part of insects, and then, separation of the soft part of insects into an oil fraction, a solid fraction, and an aqueous fraction, with subsequent use in animal feed. A method for treatment of insects for feed for obtainment of a solid fraction or an aqueous fraction is proposed, including following stages: killing of insects by scalding with hot water at a temperature of 87-100°C or blanching at a temperature of 80-105°C; separation of cuticles from a soft part of insects, using a tape belt filter press or a belt separator, where soft parts are muscles, internal organs, biological fluids, water, and hemolymph, and then, separation of the soft part of insects into an oil fraction, a solid fraction, and an aqueous fraction, where separation is carried out in two stages: at the first stage, using a two-phase decanter to obtain solid and liquid fractions, at the second stage, using a centrifuge for separation of the liquid fraction into oil and aqueous fractions, or separation is carried out directly into an aqueous fraction, a solid fraction, and an oil fraction, using a three-phase decanter. A solid fraction for feed is proposed, obtained from insects by the specified method, containing at least 71 wt.% of protein and from 0.1 to 2 wt.% of chitin, wherein weight percentages are indicated relatively to the total dry weight of the solid fraction, while at least 60% of soluble proteins have a size of less than 550 g/mol. An aqueous fraction for feed is proposed, obtained from insects by the specified method, containing at least 48 wt.% of protein, at least 2 wt.% of trehalose and having a lipid content of less than 7 wt.%, wherein weight percentages are indicated relatively to the total dry weight of the aqueous fraction. The use of the specified aqueous fraction for feed as a flavoring agent in animal feed is also proposed.

EFFECT: invention provides the production of high-quality protein feed for animals.

12 cl, 1 dwg, 6 tbl, 2 ex