METHOD FOR DISINFECTING MELANGE AND APPARATUS FOR IMPLEMENTATION THEREOF Russian patent published in 2022 - IPC A23L15/00 

FIELD: food industry.

SUBSTANCE: invention relates to the food industry, namely, to disinfection of liquid products, specifically, melange. The proposed method for disinfecting melange involves processing thereof in an oxygen-free atmosphere initially with a series of nanosecond high-voltage pulses, then with an electron beam. The melange is processed by high-voltage pulses with a duration of less than 20 ns in a flow chamber with a strength of the electric field in a liquid of at least 6*10⁶ V/ m in the 160 Hz and 315 Hz modes. The processing with an electron beam is conducted so that the absorbed dose is 5 to 20 kGy. The melange is therein supplied at a pressure of 0.2 to 2 atm, setting the supply and removal speed thereof. The proposed apparatus for disinfecting melange comprises a high-voltage pulse generator, an electron accelerator, a supply container, a flow chamber, an irradiation chamber, a receiving container, a gas cylinder, a reducer, and electromagnetic valves, wherein the irradiation chamber is formed by the output foil of the accelerator, the output flange of the electron accelerator with stiffening ribs for supporting the output foil, and a back cover with holes for supply and removal of melange. The irradiation chamber is therein made so that the melange flow therein is directed perpendicular to the bends of the output foil created between the stiffening ribs of the output flange during evacuation. The high-voltage nanosecond pulse generator is therein made with a semiconductor current interrupter, and the flow chamber is made with coaxial electrodes so that the diameters of the external D1 and internal D2 electrodes are in the ratio D1/D2≤2, wherein the external electrode is a body whereon pipes for supply and removal of melange are provided.

EFFECT: in combined processing with accelerated electrons and high-voltage pulses, a synergistic effect is established, allowing for a reduction in the absorbed dose by 10 times (up to 5 kGy) compared with disinfection only with accelerated electrons without changing the physico-chemical and consumer properties of the melange.

2 cl, 1 tbl, 3 dwg