RU2517872C2 - Plum compote production method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention is related to preservation industry. The method characterisation is as follows: one performs preliminary heating of fruits in jars with 60°C hot water during 2-3 minutes, replacing the water with 85°C syrup, sealing the jars using self-exhaustible caps and proceeds with sterilisation without creation of counter-pressure in an apparatus according to the preset mode.

EFFECT: invention usage will allow to increase the ready product food value.

Description

The invention relates to the canning industry and can be used in the production of compote from plums in cans 1-82-1000.

Sources, which were searched by this method, showed that the prototype of the proposed method is a method of sterilizing canned food "Compote from plums" in an autoclave [1] according to the mode:

$$\frac{10-45-\mathrm{twenty}}{75°C}\cdot 78\mathrm{to}P\mathrm{but}$$

where 10 is the duration of the period of heating water to 75 ° C, min;

45 - the length of the period of its own sterilization at 75 ° C, min;

20 - the duration of the cooling period, min;

75 ° С - sterilization temperature, ° С;

78 - back pressure in the autoclave, kPa.

The disadvantages of this method are:

- the need to create backpressure in the apparatus during the heat treatment, which requires additional energy consumption;

- the complexity of technological equipment for thermal sterilization, due to the fact that it operates under excessive pressure.

The technical result of the invention is aimed at creating a method for the production of compote, contributing to: reducing the duration of the process; preservation of biologically active components of the raw materials used; reducing the number of boiled fruits and fruits with cracked skin; saving heat energy, as well as reducing costs and increasing the competitiveness of finished products.

The specified technical result is achieved due to the fact that the fruits packaged in cans are poured with hot water at a temperature of 60 ° C for 2-3 minutes, then they are replaced with syrup at a temperature of 85 ° C, then the cans are rolled up with self-extinguishing lids [2] and sterilized in open devices type without backpressure by mode

$$\frac{5-45-\mathrm{twenty}}{75°C}$$

where 5 is the duration of the period of heating water to 85 ° C, min;

45 - the length of the period of its own sterilization at 85 ° C, min;

20 - the duration of the cooling period, min;

75 ° С - sterilization temperature, ° С.

An example of the method

Before pouring the syrup for 2-3 minutes, pour hot water at a temperature of 60 ° C into jars with laid fruits, then replace the water with syrup at a temperature of 85 ° C, roll the jars with self-exhausted lids, and place them in a bath (container) with hot water at a temperature of 70 ° C and subjected to heating for 5 min, increasing the temperature of the water in the bath (container) to 75 ° C. Then, for 45 minutes, the cans are sterilized at the achieved water temperature of 75 ° C, followed by cooling with cold water for 20 minutes, lowering the temperature of the water in the bath (container) during this time to 40 ° C.

Pouring the syrup at a temperature of 85 ° C allows you to significantly save thermal energy due to the fact that the syrup is boiled at a temperature of 100 ° C and when canned according to the proposed method, the syrup is cooled to 85 ° C before pouring into cans, and not to 60 ° C. as provided in the technology manual.

The use of self-extinguishing lids ensures the removal of air from the cans during their heating, which, firstly, provides the possibility of carrying out the sterilization process without creating back pressure in the apparatus and, secondly, the removal of air from the cans contributes to a more complete preservation of biologically active substances contained in the product because the lack of air in the banks significantly reduces their decomposition due to the cessation of oxidative reactions.

Salient features of the proposed method are: preheating fruits in jars before pouring syrup with hot water at a temperature of 60 ° C, which allows pouring syrup into a jar at a temperature of 85 ° C (according to current technological instructions, the temperature of the syrup when pouring 60 ° C) [1]; the cans are sealed with self-extinguishing lids, and heat treatment is carried out without creating back pressure in the apparatus.

This mode provides energy savings due to the unnecessary creation of backpressure in the apparatus, it does not require sophisticated technological equipment for the implementation of heat sterilization of canned food, saving heat energy and improving the quality of finished products by reducing the duration of heat treatment.

Literature

1. A collection of technological instructions for the production of canned food. T.2. M .: Food industry. 1977.

2. Flaumenbaum B.L., Ibragimova L.R., Bloch G.A. Self-extinguishing glass packaging with type 1 closure with “breathable” lids. - Canning and vegetable drying industry, 1983, No. 1, S.29-32.

Claims (1)

A method of producing compote from plums, characterized in that after filling the cans, the fruits are filled with hot water at a temperature of 60 ° C for 2-3 minutes, followed by replacing the water with syrup at a temperature of 85 ° C, then the cans are rolled up with self-exhausting lids and subjected to heat treatment without creating back pressure in open devices by mode:

.