METHOD FOR THE COMPLEX PROCESSING OF ST. JOHN'S WORT AND A TECHNOLOGICAL LINE FOR ITS IMPLEMENTATION Russian patent published in 2022 - IPC B01D11/02 A23K10/30 A23L29/206 

FIELD: food industry.

SUBSTANCE: inventions group relates to the food industry, namely to a method for the complex processing of St. John's wort to obtain pulp, which can be used in the feed industry, and the extract itself in the production of flour culinary, bakery products, and to a production line for implementing the method. The method for complex processing of St. John's wort herb is characterized by the fact that it involves washing St. John's wort herb with warm water at a temperature of 35-40°C, which is then sent for filtration, heated and returned to the sink to form a recirculation circuit; and pure St. John's wort grass is crushed and together with hot water with a temperature of 90-95°C in a ratio of 1:20 is served for extraction at a temperature of 85-90°C, while the resulting extract of biologically active substances is used in further processing, and the resulting herbal pulp is squeezed to a moisture content of 60-65%, loosen and dry in a vibro-boiling layer with superheated steam at a pressure of 0.02-0.03 MPa and a temperature of 80-90°C to a moisture content of 9-11%, and the exhaust superheated steam after drying with a temperature of 65-75°C is divided into two streams, one of which is superheated to a temperature of 80-90°C by means of recuperative heat exchange with heating steam with a temperature of 100-105°C and then returned to the dryer to form a recirculation circuit, and the other flow in the amount of evaporated moisture from the grass pulp is first sent for cleaning from fine fractions, and then condense; at the same time, the heat of condensation is used to heat water to a temperature of 45-50°C, which is used for recuperative heat exchange with water supplied to the washing of St. John's wort with a given temperature regime; the resulting condensate of the spent superheated steam after drying the herbal pulp with a temperature of 60-70°C is combined with the condensate formed after preparing warm water for washing St. which is divided into two streams, one of which is directed to a uniform temperature distribution in the process of water extraction throughout the volume of chopped St. the heating steam flow is directed to superheat the exhaust superheated steam after drying to a temperature of 80-90°C due to the heat of condensation, while the resulting heating steam condensate in the form of hot water with a temperature of 90-95°C is fed together with chopped St. John's wort for extraction. The technological line for the implementation of the above method for the complex processing of St. water regeneration to restore the throughput of filtering baffles, filter-cyclone, condenser, heat exchanger, fan, pumps and flow separators; at the same time, heating steam with a temperature of 100-105°C is formed in the steam generator due to electricity, one part of which is used in the steam jacket of the extractor to maintain a temperature regime of 85-90°C, and the other in the superheater, in which, due to the heat of condensation, the spent superheated steam after a vibration dryer from a temperature of 65-75°C to 80-90°C in the recirculation circuit; the resulting heating steam condensate after the extractor with a temperature of 95-100°C is fed into a heat exchanger for heating water to a temperature of 35-40°C, which is used in a washing machine for washing St. John's wort, and the resulting heating steam condensate after the superheater with a temperature of 90-95°C is sent to the extractor along with chopped St. John's wort; part of the exhaust superheated steam after the vibration dryer in an amount equal to the amount of moisture evaporated from the grass pulp, with a temperature of 65-75°C, is fed into the filter cyclone for cleaning and then into the condenser for heating water to a temperature of 45-50°C, used in the water shirt of the washing machine to maintain the temperature in it 35-40°C.

EFFECT: method allows to increase the energy efficiency and environmental safety of the method for complex processing of St. John's wort and the technological line for its implementation, providing the preparation of an extract of St. John's wort with subsequent drying of the resulting pulp with maximum recovery and utilization of secondary energy resources.

2 cl, 1 dwg