RU2517873C2 - Pear and quince compote sterilisation method - Google Patents

Abstract

FIELD: food industry.

SUBSTANCE: invention relates to preservation industry, in particular, to pear and quince compote sterilisation method. The method is as follows: one performs jars putting (after sealing) into the carrier ensuring mechanical air-tightness of the jars. One proceeds with simultaneous staged heating of some jars in baths filled with 60, 80 and 100°C water and in a bath filled with 120°C calcium chloride solution. Staged heating of some jars is performed during 4, 4, 4 and 4-6 minutes respectively; cooling of other jars is performed in the same baths filled with 100, 80 and 60°C water during 4, 4 and 4 minutes with continuation of cooling in another bath at water temperature equal to 40°C during 6 minutes. During the heat treatment process the jar is turned upside down with a frequency equal to 0.1 s^-1.

EFFECT: invention usage will allow to reduce the sterilisation process duration.

Description

The proposed method for the invention relates to the canning industry, and in particular to methods for sterilizing compote from pears and quinces in cans SKO 1-82-350.

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

$$\frac{\mathrm{twenty}-(\mathrm{fifteen}-\mathrm{twenty})-\mathrm{twenty}}{{\mathrm{one\; hundred}}^{\circ }C}\cdot 118\mathrm{to}P\mathrm{but}$$

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

(15-20) - 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 main 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 biologically active components of the raw materials used; reducing the number of boiled fruits and fruits with cracked skin; simplifying the process of implementing the method and apparatus design for its implementation, saving heat energy and water, as well as reducing costs and increasing the competitiveness of finished products.

The specified technical result is achieved due to the fact that the cans after seaming are installed in a special carrier that provides mechanical tightness of the cans and are preheated in the first bath with water at a temperature of 60 ° C for 4 minutes, followed by transfer to the second and third baths with water, respectively 80 ° C for 4 min, 100 ° C for 4 min and a fourth bath with a solution of calcium chloride with a temperature of 120 ° C for 4-6 min, followed by cooling in a third, second and first bath with water at 100, 80, and 60 ° C for 4, 4, and 4 min, respectively, and continued cooling in the fifth bath at a water temperature of 40 ° C for 6 min, while during heat treatment the jar is rotated from the bottom to the lid with a frequency of 0, 1 s ^-1 .

An example implementation of the method.

After sealing, the cans with compote are installed in a carrier that provides mechanical tightness (preventing the caps from breaking during the heat treatment), and placed in a hot water bath at 60 ° C for 4 minutes. After 4 minutes, the carrier with the jars is transferred to a bath with water at a temperature of 80 ° C for 4 min, then to a bath with water at a temperature of 100 ° C for 4 min and with a solution of calcium chloride at a temperature of 120 ° C for 4-6 min. After this time, the cans are cooled in the same baths: in the third bath at a water temperature of 100 ° C for 4 min, in the second bath at a water temperature of 80 ° C for 4 min and in the first bath for 4 min at a water temperature of 60 ° C, in which the next batch of cans is simultaneously heated, with further cooling continued in the fifth bath at a water temperature of 40 ° C for 6 minutes, and during the heat treatment, the can is rotated from the bottom to the lid with a frequency of 0.1 s ^-1 .

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 bath.

Salient features of the proposed method are: four-stage heating of compote in water at temperatures of 60, 80, 100 ° C and a solution of calcium chloride at a temperature of 120 ° C for 4, 4, 4 and 4-6 minutes, respectively, followed by four-stage cooling for 4, 4, 4 and 6 min, while the processes of heating and cooling the cans, in addition to the last stages of heating and cooling, are carried out simultaneously in the same bathtubs.

This mode provides significant savings in thermal energy, water, reducing the process time 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 sterilizing compote from pears and quinces, characterized in that, after seaming, the cans are installed in a carrier providing mechanical tightness of the cans, and stepwise heating is carried out simultaneously in baths with water at temperatures of 60, 80, 100 ° C and in a bath with a solution of calcium chloride with a temperature 120 ° C for 4, 4, 4, and 4-6 minutes, respectively, of some cans and cooling of others in the same bathtubs with water at temperatures of 100, 80, and 60 ° C for 4, 4, and 4 minutes with continued cooling in another bath at a water temperature of 40 ° C for 6 minutes, and in during heat treatment, the jar is rotated from the bottom to the lid with a frequency of 0.1 s ^-1 .