SU1274645A1 - Method of storing agricultural crops - Google Patents

Abstract

The invention relates to the agricultural and food industry and can be used for the storage of fresh agricultural products of plant origin. The invention makes it possible to increase the shelf life and reduce the loss of agricultural crops. The invention consists in the fact that before the storage of agricultural crops in a storage tank, the internal volume of the latter is treated with an aerozone mixture with an ozone dose factor of 0.005 to 01 mg / l-min, followed by the introduction of solid carbon dioxide in the capacity from 0.1 to 0, 9 g per 1 kg of product.

Description

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ABOUT

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The invention relates to the agricultural and food industry and can be used for the storage of fresh agricultural products of plant origin.

The purpose of the invention is to increase the shelf life and reduce the loss of agricultural products.

The storage method is as follows.

Before putting the product into the tank, its internal volume is treated with an ozone mixture with an ozone dose factor of 0.005-0.1 mg / l-min, after which solid carbon dioxide is introduced into the container in an amount of 0.1-0.9 g / kg relative to mass of products and then packaged products.

The treatment of the internal volume of the container with an erozone mixture allows for private antiseptic and preparation of the container for placing products in it. Entering solid carbon dioxide in an amount of 0.1-0.9 g per 1 kg of product into the container immediately after it is treated with an aero-zone mixture allows to obtain an environment enriched with carbon dioxide and nitrogen and depleted in oxygen, which is optimal for subsequent storage of the product, the excess of which is displaced by sublimating vapor solid carbon dioxide. Pretreatment of the internal volume of the tank with an aerozone mixture increases the reactive and antiseptic ability of the injected solid carbon dioxide and reduces its quantity.

If the ozone dose factor is less than 0.005 mg / l-min and the amount of solid carbon dioxide is less than 0.1 g per 1 kg of stored product, the quality loss increases and the product storage time decreases. When the ozone dose factor is greater than 0.1 mg / l-min and the amount of solid carbon dioxide is more than 0.9 g per 1 kg of product, there is an undesirable change in the optimal storage composition of the gaseous medium (due to an excess of COz vapors, the product "chokes, there is a shock metabolic processes), which adversely affects the quality of stored products, partly worsens them.

At the same time, the costs of producing aerozone mixture and solid carbon dioxide increase.

Example I. Rose petals are taken and stored for storage at low positive temperature in hermetical polymer containers equipped with gas selective elements. Before laying the petals in the tank, it is treated with an ozone mixture with an ozone dose factor of 0.1 mg / l-min. Then, solid carbon dioxide is introduced into the container in the amount of 0.9 g per 1 kg of stored products. After that, lay the petals of roses, seal the container and place in storage. The storage of rose petals in baskets covered with a tarp under the same temperature conditions is taken as a control. As a result of the nptr experiments, the storage time of the control for 1 day was 18%;

the proposed method, within 5 days, the waste is less than 6%.

Example 2. Take lavender inflorescences and store for storage at low positive temperature in sealed polymer containers equipped with gas-selective elements. Before being put into the tank, it is treated with an ozone mixture with a ozone dose factor of 0.05 mg / l-min, then solid carbon dioxide is introduced into the tank in the amount of 0.4 g per 1 kg of stored products. After this, the flowers of the lavender bloom, and the container is sealed and stored. The control is stored in baskets covered with a tarpaulin under the same temperature conditions.

0 As a result of storage at its time of 1 day, the waste in the control is 14%, while according to the proposed method during storage of 5 days, the waste is 4%. Example 3. Take peeled potatoes and put in storage at low

5 positive temperature in sealed containers (packaging), equipped with gas-selective elements. Before putting the potatoes into the tank, they are processed by an aerozone mixture with an ozone dose factor of 0.0 mg / l-min. Then solid carbon dioxide is introduced into the container in the amount of 0.2 g per 1 kg of the stored product. Then lay the peeled potatoes, sealed packaging and placed in storage. The controls are stored in hermetic film packagings with gas selective elements without treatment with an aero mix and the introduction of solid carbon dioxide. As a result of storage for a period of 20 days for its control, the waste is 7%. While in storage according to the proposed method for 26 days, the waste is about 3%. Storage is controlled in the same temperature conditions as in the proposed method.

Claims (1)

Example 4. Take the cleaned beets and 5 put in storage at a low positive temperature in sealed containers, equipped with gas-selective elements. Before the beets are put into the tank, they are treated with an ozone mixture with an ozone dose factor of 0.005 mg / 0 / l-min. Then solid carbon dioxide is introduced into the container in the amount of 0.1 g per 1 kg of the stored product. Then lay the cleaned beets, sealed packaging and placed in storage. The controls are stored in hermetic film packages with a gas selective window without being treated with an aerozone mixture and with the introduction of solid carbon dioxide. As a result of storage for 5 days in the control room, the waste is 12% for the proposed method with a storage period of 15 days. The storage temperature conditions are the same in all storage situations. Example 5. Take rose petals and put in storage at a low positive temperature in sealed polymer containers (packages), equipped with gas-selective elements. Before laying the petals in the tank, it is treated with an aerozone mixture with an ozone dose factor of 0.3-1 mg / l-min. Then, solid carbon dioxide is introduced into the tank in the amount of 1 g per 1 kg of product. After that, lay the petals of roses, seal the container and place in storage. The controls are stored in baskets covered with sheeting. As a result of storing the control for 1 day, the waste is 18%, and according to the proposed method with extreme modes, for 5 days the storage of waste is 8%, which is slightly worse than for the optimal mode. Example 6. Take the cleaned beets and put in storage at a positive low temperature in sealed containers (packaging), equipped with gas-selective elements. Before the beets are put into the tank, they are processed by an ozone mixture with an ozone dose factor of 0.006 mg / l min. Then, solid carbon dioxide in the amount of 0.05 g per 1 kg of product is introduced into the container. After that lay the cleaned beets, sealed container and placed in storage. The controls are stored in hermetic film packages with a gas selective window without being treated with an aerozone mixture and with the introduction of solid carbon dioxide. As a result of storage for 5 days in the control, the waste is 12%, and according to the proposed method with out-of-limit conditions, at 5 days of storage it is 5%, which is slightly worse than the optimal mode. The analysis of the experimental results shows that the optimal mode for implementing the proposed method is the processing mode of the tank with an aero zone mixture (before laying solid carbon dioxide and packaging products) with a dose factor from 0.005 to 0.1 mg / l-min followed by the introduction of solid carbon dioxide in a ratio from 0, 1 to 0.9 g per 1 kg of stored products. Approximate economic efficiency of the method will be over 600 rubles. per 1 ton of essential oil raw materials, taking into account the existing purchase prices and about 70 rubles. per 1 ton of peeled vegetables. Savings are achieved by reducing product losses during storage. Claims The method of storing agricultural crops, including placing the product in a container, introducing solid carbon dioxide and sealing the container, characterized in that, to increase the shelf life and reduce product loss, before filling the internal volume, the container is treated with an ozone dose factor of 0.005 -0.1 mg / l-min and 0.1-0.9 g of solid carbon dioxide is injected per 1 kg of product.