| 摘要 |
The present inventions belong to the milk industry and can be used for producing pasteurized whole or restored milk and sour milk products on their basis, with a long-term storage time and improved organoleptic characteristics. The inventions provide more careful sterilization of milk and elimination of secondary contamination of products during all production stages thereof. The inventions consist in the method for producing sour milk products consisting in carrying out a milk treatment process and subsequent operations in the presence of soluble in milk derivative of polyphosphoric acid of general formula <?in-line-formulae description="In-line Formulae" end="lead"?>HO-[PO<SUB>3</SUB>X]<SUB>n</SUB>-PO<SUB>3</SUB>X<SUB>2</SUB>, <?in-line-formulae description="In-line Formulae" end="tail"?> wherein X represents sodium, or potassium, or calcium, or magnesium, or hydrogen or ammonium ions, and 30>=n>=1 at a quantitative value thereof ranging from 0.4 to 0.7 g/l; the milk treatment is carried out with double pasteurization, bottling and packing are associated with hermetic sealing at a temperature of 68-72° C. up to the second pasteurization, ferment is applied into hermetically sealed milk at ultraviolet irradiation of applying ferment area and is followed by the final hermetic sealing of a package afterwards. The invention also consists in the method of milk treating when after the first pasteurization the milk is kept at a temperature 68-72° C. for not less than 15 minutes for a drinking milk, and not less than 5 minutes for sour milk products, bottling with hermetic sealing is carried out after this keeping at the said temperature, then hermetically sealed milk is cooled down to a temperature of 12-37° C. and kept at this temperature for not less than 30 minutes, the second pasteurization is carried out after the said keeping by heating the milk to a temperature 68-72° C. at a heating rate equal to or greater than 10° C./sec. The inventions also consist in the structural design of the line for realization of the method of production of sour milk products, in the structural design of the device for milk treating for realization of the method of milk treating. |
