Pumpkin puree sterilisation method

FIELD: food industry.

SUBSTANCE: invention relates to a method for pumpkin puree sterilisation. The method envisages putting jars with puree (after sealing) into the carrier and the jars heating in baths filled with 80 and 100°C water during 5 and 5 minutes, respectively, with subsequent transfer into the third bath filled with a 120°C calcium chloride solution for 25 minutes and subsequent cooling in the second and the first baths filled with 100 and 80°C water during 5 and 5 minutes, respectively, and continuation of cooling in the fourth bath at water temperature equal to 60-40°C during 10 minutes; the jars heating and cooling are simultaneously performed in the same baths; during the heat treatment process, the jars are turned upside down with a frequency equal to 0.1 s-1.

EFFECT: method ensures the heat treatment process duration reduction.

1 ex

 

The invention relates to the canning industry, and in particular to methods of sterilizing canned "pumpkin purée in banks 1-58-200.

The sources, which described the search in this way showed that the prototype is the method [1], the essence of which is that the banks with the product are subjected to autoclave sterilization on mode:

25-40-251200176÷196KPand

where 25 - duration of heating water in an autoclave to 120°C, min;

40 - duration self-sterilizing, min;

25 - duration of cooling, minutes

176-196 - back pressure in the autoclave, kPa.

The main disadvantages of this method are:

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

- uneven thermal processing of the product in banks.

The technical result of the proposed method aims at reducing the duration of the heat treatment process, the creation of a method of sterilization pumpkin purée, providing simultaneous heating and cooling of the cans of canned goods in the same baths, with a view to facilitating the implementation of heat treatment and design up the Arata heat sterilization, by reducing its dimensions and the metal.

This technical result is achieved due to the fact that banks after the seaming are installed in a special carrier that provides mechanical integrity of cans, and subjected to preliminary heating in the first water bath temperature of 80°C for 5 min with subsequent transfer to the second respectively 100°C for 5 min, and the third bath with a solution of calcium chloride with the temperature of 120°C for 25 min and then cooled in the first and second tubs with water temperatures of 100 and 80°C for 5 and 5 min and continued cooling in the fourth tub when the water temperature 60-40°C for 10 min and during the whole process of heat treatment of banks rotate with the bottom on the cover with a frequency of 0.1 s-1.

An example of the method.

Banks with mashed potatoes after sealing is installed in the media, providing mechanical integrity (prevention of breakdown covers the process of heat treatment) and placed in a tub with hot water temperature 80°C for 5 min After 5 min, the media, the banks transferred to the water bath temperature 100°C for 5 min, followed by a bath with a solution of calcium chloride the temperature of 120°C for 25 minutes after this time, the banks are cooled in the same baths: in the second bath at t is mperature water 100°C for 5 min and the first tub within 5 min at a water temperature of 80°C, in which there is a simultaneous heat the next batch of cans, with a further continuation of the cooling in the fourth tub when the water temperature 60-40°C for 10 min and during the whole process of heat treatment of banks rotate with the bottom on the cover with a frequency of 0.1 s-1.

Using stepwise cooling puree in the same baths, where and heat, helps to simplify the process of heat treatment and the design of the device for sterilization, provides significant savings in thermal energy and water, as with the high performance of heat treatment for heating canned in the first and second heat bath is given cooled in the same baths banks already pre-cooked. And the water for cooling is consumed only in the last tub.

Salient features of the proposed method are: the three-step heating of the cans with the product in water temperatures of 80, 100°C and a solution of calcium chloride the temperature of 120°C, respectively 5, 5 and 25 min, followed by a three-stage cooling for 5, 5, and 10 min, and the processes of heating and cooling cans, except for the last stages of heating and cooling are carried out simultaneously in the same bath.

This mode provides substantial savings of thermal energy, water is, reducing the duration of the process and thereby improving the quality of finished products.

Literature

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

Sterilization method mashed pumpkin, characterized in that after the seaming banks set in the media, preventing the collapse of the caps in the heating process and carry out the heating in the first water bath temperature of 80°C for 5 min, followed by transfer into a second water bath temperature of 100°C for 5 min and the third bath with a solution of calcium chloride the temperature of 120°C for 25 min and then cooled in the first and second tubs with water temperatures of 100 and 80°C for 5 and 5 min and continued cooling in the fourth bath at a temperature of water 60-40°C for 10 min, while heating and cooling of the cans carried out simultaneously in the same bath and throughout the curing process, banks rotate with the bottom on the cover with a frequency of 0.1 s-1.



 

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