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Abstract

Process for the production legume meal comprising the steps of: a) providing a wet heat treatment reactor comprising a cylindrical tubular body (1) with horizontal axis, having an opening (5, 6, 10) for the introduction of legume meal and water or an aqueous solution and having at least one discharge opening (7), a heating jacket (4) and a rotor (8) arranged inside the cylindrical tubular body; b) feeding a continuous flow of meal into the reactor, in which the rotor (8) is rotated at a speed greater than or equal to 150 rpm; c) feeding into the reactor, together with the flow of meal, a continuous flow of water or aqueous solution, which is dispersed into minute droplets; d) centrifuging the aforementioned flows against the inner wall of the reactor, thus forming a highly turbulent, dynamic, thin tubular fluid layer, while advancing in substantial contact with the inner wall of the reactor towards the discharge opening (7); e) discharging from the discharge opening (7) a continuous flow of a wet meal (moisture content 20-40%); f) providing a thermal dehydration and treatment reactor, comprising a cylindrical tubular body (101) with horizontal axis, having at least one inlet opening (105) and at least one discharge opening (107), a heating jacket (104) and a rotor (108) arranged inside the cylindrical tubular body (101) and comprising a shaft provided with elements (109) projecting radially therefrom; g) feeding the wet meal into the thermal dehydration and treatment reactor, the inner wall of the reactor being kept at a temperature of at least 100° C. and the rotor (108) being rotated at a speed of at least 150 rpm; h) centrifuging and causing the wet meal to advance inside the reactor by the action of the rotor (108); i) discharging from the discharge opening (107) of the reactor a continuous flow of legume meal having a moisture content of between 2% and 15%.

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