RU2558270C1 - Sweet cherry compote production method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention is related to preservation industry. The method for production of sweet cherry compote in jar SKO 182-350 involves fruits pouring with 80°C hot water during 2-3 minutes, with subsequent replacement of water with 85°C syrup. Then jars are sealed, put into the carrier ensuring mechanical air-tightness and subjected to simultaneous staged heating in baths with 80°C and 100°C water and in a bath with 120°C calcium chloride solution during 4, 4 and 5-6 minutes, respectively. Then one performs cooling in the second and the first baths filled with 100°C and 80°C water during 4 and 4 minutes, respectively, and continuation of cooling in the fourth and the fifth baths filled with 60°C and 40°C water during 4 and 4 minutes. During the heat treatment process the jar is subjected to interrupted 2-3-minutes' turning upside down with a frequency equal to 0.1 sec^-1 with a 2-3 minutes' interval.

EFFECT: invention ensures heat energy and water saving, the process duration reduction and the ready product quality enhancement.

Description

The proposed method for the invention relates to the canning industry, and in particular to methods for the production of sweet compote in cans SKO 1-82-350.

Sources that were searched by this method showed that the prototype of the proposed method is a method for the production of canned "Compote from cherries" with sterilization in an autoclave [1] according to the mode

where 20 is the duration of the period of heating water to 100 ° C, min;

(12-18) - the length of the period of its own sterilization at 100 ° C, min;

20 - the duration of the cooling period, min;

100 ° C - sterilization temperature, ° C;

118 - back pressure in the autoclave, kPa.

The disadvantages of this method are:

- long duration of the process of heat treatment of the product;

- uneven heat treatment of the product in banks;

- high consumption of thermal energy and water.

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 the natural components of the raw materials used; reducing the number of cracked and boiled fruits; increase the nutritional and biological value of the product; improving the structural and mechanical characteristics of the finished product; saving thermal energy and water, as well as improving the competitiveness of finished products.

The specified technical result is achieved due to the fact that the fruits packaged in cans are filled with hot water at a temperature of 60 ° C for 2-3 minutes, then this water is replaced with syrup at a temperature of 85 ° C, the cans are rolled up, installed in a carrier that provides mechanical tightness of the cans, and subjected to preliminary heating in the first bath with water at a temperature of 80 ° C for 4 min, followed by transfer to a second bath with water at a temperature of 100 ° C for 4 min and into a third bath with a solution of calcium chloride at a temperature of 120 ° C for 5-6 min, s subsequent cooling by cooling in the second and first water baths with temperatures of 100 ° C and 80 ° C for 4 and 4 minutes, respectively, and continuing cooling in the fourth and fifth water baths with temperatures of 60 ° C and 40 ° C for 4 and 4 minutes, respectively during the heat treatment, the jar is subjected to intermittent 2-3-minute rotation from the bottom to the lid with a frequency of 0.1 s ^-1 with an interval of 2-3 minutes.

An example implementation of the method.

Before pouring syrup for 2-3 minutes, pour hot water at a temperature of 60 ° C into jars with laid fruits, then replace this water with syrup at a temperature of 85 ° C; treatment) and placed in a hot water bath at 80 ° C for 4 minutes. After 4 minutes, the carrier with the jars is transferred to a bath with water at a temperature of 100 ° C for 4 minutes, then to a bath with a solution of calcium chloride at a temperature of 120 ° C for 5-6 minutes. After this time, the cans are cooled in the same baths: in the second one at a water temperature of 100 ° C for 4 minutes, in the first bath at a water temperature of 80 ° C for 4 minutes, in which the next batch of cans is heated simultaneously, with further cooling in the fourth and fifth baths with water at temperatures of 60 ° C and 40 ° C for 4 and 4 minutes, respectively, while during the heat treatment the jar is subjected to intermittent 2-3-minute rotation from the bottom to the cover with a frequency of 0.1 s ^-1 with an interval of 2-3 minutes.

The use of stepwise cooling of compote in the same bathtubs where heating is carried out helps to simplify the heat treatment process and the design of the sterilization apparatus, provides significant savings in heat energy and water, since with this design of heat treatment, canned food is used in the first and second baths the heat given off by banks cooled in the same baths that have already undergone heat treatment. And water for cooling is consumed only in the last two baths.

The use of intermittent rotation of the cans during the heat treatment contributes to the intensification of the process of internal heat transfer in the can and in combination with the periodic holding of the cans in a static state reduces the duration of the process of mechanical wiping of the fruits between themselves and the walls of the cans while ensuring uniformity of the heat treatment, which helps to maintain their integrity that provides an improvement in the structural and mechanical properties of the finished product.

Pre-heating the fruits in jars with hot water provides an increase in the initial temperature of the fruits before sterilization, the possibility of pouring the syrup at an elevated temperature than is provided for in the technological instruction, as well as partial removal of air from the fruits, which also helps to improve the quality of the finished product.

Salient features of the proposed method are: pre-heating the fruits in jars with hot water; three-stage heating of compote in water with temperatures of 80 ° C, 100 ° C, and a solution of calcium chloride with a temperature of 120 ° C, respectively, 4, 4 and 5-6 minutes, followed by four-stage cooling for 4, 4, 4 and 4 minutes and the heating processes and cooling the cans, in addition to the last stage of heating and two stages of cooling, are carried out simultaneously in the same bathtubs and intermittent 2-3-minute rotation of the cans from the bottom to the lid with a frequency of 0.1 s ^-1 with an interval of 2-3 minutes during the process heat treatment.

This method provides significant savings in thermal energy, water, reducing the duration of the process and thereby improving the quality of the finished product.

Literature:

1. Collection of technological instructions for the production of canned food, t-2, M. 1977

Claims (1)

A method of producing compote from cherries, characterized in that after filling the jars with fruits for 2-3 minutes, pour hot water at a temperature of 60 ° C, followed by replacing the water with syrup at a temperature of 85 ° C, then the cans are rolled up, installed in a carrier that provides mechanical tightness, and simultaneously carry out stepwise heating in baths with water at temperatures of 80 ° C and 100 ° C and in a bath with a solution of calcium chloride with a temperature of 120 ° C for 4, 4 and 5-6 minutes, respectively, followed by cooling in the second and first baths with water pace 100 ° C and 80 ° C for 4 and 4 minutes, respectively, and continued cooling in the fourth and fifth baths with water at 60 ° C and 40 ° C for 4 and 4 minutes, respectively, while during the heat treatment the jar is subjected to intermittent 2-3 minutes rotation from the bottom to the cover with a frequency of 0.1 s ^-1 with an interval of 2-3 minutes.