Improvement of Grape Juice Production Technology for Baby Food

Development of microwave technology of selective heating the components of heterogeneous media

“…In the article [8], similar results were obtained. The authors used a combined pasteurization method, which consisted in preliminary microwave heating of grape juice and its subsequent heat treatment.…”

“…The set of essential features of the device provides the advantages of the invention over the prototype. The increase in the quality of stabilization of the product, first of all, is due to the absence of edge overheating of the product along the waveguide of the chamber (8), in comparison with the prototype. This waveguide is filled with a wine material-energy converter.…”

“…After the volume of the recuperating unit (1) is filled, the product level regulator (12) stops the product supply through the filling unit (3). The product supply pump (11) pumps the product first in a closed circle: from the first outlet of the recuperating unit (1) through the heat exchanger (10), the dielectric tubular channel of the waveguide chamber (8) and the unit (2) to the first inlet of the recuperation unit (1). At present, the liquid cooling pump (13) of the generator pumps the liquid in a closed circle: the cooling channel of the generator unit (7), the utilization channel as part of the electromagnetic energy absorber (9), the liquid channel for additional heating of the heat exchanger product (10), the pump (13).…”

“…At present, the liquid cooling pump (13) of the generator pumps the liquid in a closed circle: the cooling channel of the generator unit (7), the utilization channel as part of the electromagnetic energy absorber (9), the liquid channel for additional heating of the heat exchanger product (10), the pump (13). Powerful electromagnetic energy is supplied to the waveguide chamber (8) with a tubular dielectric channel to the unit generator (7), which heats the product in the tubular dielectric channel and destroys the microflora of the product. The unused part of the electromagnetic energy enters the absorber ( 9), turns into heat, which is transferred through the liquid channel of the heat exchanger (10) to the product in another channel of the heat exchanger (10), for additional heating of the product.…”

“…After heating the product with the help of repeated electromagnetic action in the waveguide chamber (8) and in the heat exchanger (10) to a temperature pre-set in the control unit ( 5) by the stabilization process, this unit (5) sends a signal to close the hydraulic switching unit (2) and open drain unit (4) of the finished product. The finished product is cooled in the recuperating unit (1) using the cold product inlet flow through the product filling unit (3).…”