FRUIT-AND-MILK CONCENTRATE MANUFACTURING METHOD Russian patent published in 2013 - IPC A23L3/46 A23L1/212 A23C17/00 

FIELD: food industry.

SUBSTANCE: invention relates to preservation industry, in particular, to the technology of vegetable and dairy raw material processing and may be used for fruit-and-milk concentrates production. The method characterisation is follows: apples, pears and apricots are washed, inspected, peeled, milled into a puree and mixed at a ratio of 39.84:31.69:28.47; then water-soluble substances are extracted from lentils with buttermilk by way of three-stage bismaceration: at the first stage lentil grains milled into 1 mm particles are extracted with buttermilk during 2 hours, constantly stirred, at a temperature of 323 K with water duty equal to 1:4, at the second stage the sediment remaining after the first stage is extracted with fresh buttermilk, constantly stirred, at a temperature of 313 K with water duty equal to 1:3 during one hour; at the third stage the sediment remaining after the second stage is repeatedly extracted with fresh buttermilk at room temperature with water duty equal to 1:2 during two hours; then the remaining sediment is centrifuged at 4500 rpm during 20 minutes; then the produced infusion is mixed with the extracts produced at the first, second and third bismaceration stages; then the milk infusion is mixed with the produced fruit mixture at a ratio of 47.27:52.73 with the produced fruit-and-milk mixture heated to a temperature of 63°C and maintained during 25-30 min; then the fruit-and-milk mixture under a pressure of 0.75 MPa is pulverised in the vacuum chamber under a pressure of 5…6 kPA; the fruit-and-milk mixture film flowing down the vacuum chamber vertical wall is evaporated at thermostating temperature equal to 45°C; due to evaporation of the vapours generated, the content of dry substances in the fruit-and-milk puree is conditioned to 30.2%; then the prepared fruit-and-milk concentrate is packed, packaged and sterilised.

EFFECT: method allows to intensify the evaporation process, improve the ready product quality due to food and energy value enhancement, produce fruit-and-milk concentrates with preset composition and food value adapted for different age groups.

1 dwg, 2 tbl, 1 ex