SU1191046A1 - Method of desinfection of food products in ship's holds - Google Patents

Abstract

A METHOD FOR DECONTAMING FOOD CARGOES IN THE VESSELS OF VESSELS from harmful arthropods, which consists in processing them with carbon dioxide, characterized in that, in order to increase the efficiency and simplification of the disinfection technology, the processing of foodstuffs with dioxide is carried out in conjunction with methyl bromide, and the components are disinfected; 40% by volume and 1.5 g / m, respectively. (ABOUT

Description

1 i

The invention relates to the protection of plants and food products from harmful entomofauna, and can be used to disinfect food and other vegetable goods in the holds of vessels,

The purpose of the invention is to increase the efficiency and simplify the technology of disinfecting food loads in the holds.

A method for disinfecting foodstuffs in the holds of vessels with carbon dioxide together with methyl bromide is proposed. The treatment is carried out with carbon dioxide in the amount of 30-40 vol.% And methyl bromide in the amount of 1.5 g / m. High efficiency of the process is achieved due to synergism of the effect of the specified gas components. Under the influence of carbon dioxide, the respiration of insect pests is activated, thereby increasing the rate at which they absorb the fumigant, which causes the death of the pests.

The proposed method allows to decontaminate any contaminated product from the harmful entomofauna without adversely affecting its quality, and is the most advanced method of decontamination of plant cargo in the ship holds known in the past.

Example 1. The effect of carbon dioxide in a mixture with methyl bromide of low concentrations on the most stable type of quarantine pest - the larvae of the caprone beetle (the best option).

In a fumigation tank at an air temperature of -23 ° C and a relative humidity of 78%, 00 copes of even-aged larvae of the capricea beetle of laboratory wiring are placed in a mesh garden. The container is sealed and carbon dioxide is supplied to it at the rate of 30 to 40% by volume and methyl bromide in a dosage of 1.5 g / m. The exposure is maintained for 168 hours, 252 hours (168 hours, 1.5 g / m) are collected in methyl bromide and the tank is degassed. Mortality of larvae after degassing 100%.

Example 2. Under the conditions of Example 1, a carbon dioxide consumption rate of 25% by volume and dosage of 910462 are tested.

Methyl bromide treatment 1 g / m. They withstand an exposure of 252 hours, while collecting 252 hours (252 hours x 1 g / m) of methyl bromide. 5 Mortality of larvae after degassing 92%.

Example 3. Under the conditions of Example I, a carbon dioxide consumption rate of 45% by volume and a test of methyl bromide were 2 g / m. They withstand an exposure of 126 hours, while gaining 252 hours (126 hours x 2 g / m) of methyl bromide. Mortality of larvae after degassing

S 96%.

Example 4. Under the conditions of Example 1, a carbon dioxide consumption rate of 43% by volume and methyl bromide dosage of 1.5 g / m were tested.

0 Withstand an exposure of 168 hours, while gaining 252 hours on methyl bromide. Mortality of larvae after degassing 98.3%.

Example 5. Under the conditions of Example 5, roses I and 4 experience a consumption rate of carbon dioxide of 29%. Mortality of larvae after degassing 98%.

Example 6. Under the conditions of example 1, the decontamination of foodstuffs is carried out in the ship's holds. After loading the holds and detecting the natural contamination of the product or packaging with harmful arthropods, net cages are additionally placed among the products.

with bioindicators - the larvae of the laboratory blood dispersion beetle. In each hold, 2-3 small plants are placed with 100 copies of larvae in each. The holds are sealed and in them

0 carbon dioxide obtained by absorbing separation of flue gases, which are the product of fuel combustion in ship power plants, is fed through the fire fighting bilge fire extinguishing system. Then methyl bromide is supplied to the holds through manholes, which are then sealed. For 1-4 days (depending on

0 flight duration) before arriving at the port of destination, complete the exposure and include forced ventilation in the holds. Ventilator runs continuously until complete removal.

5 gases from holds. Upon arrival at the port of destination, the holds are opened and the bioindicators are inspected — the larvae of the capricea beetle, as well as the cargo for detecting harmful arthropods of natural infection, and the mortality of insects is established. The implementation of the proposed method of disinfecting foodstuffs in the holds of ships provides, in comparison with known methods, 100% mortality of all types of quarantine and other dangerous 191046 4 pests in foodstuffs, transported by sea in the holds of ships, guaranteeing the safety of the life of crew members of 5 ships. In addition, the carbon dioxide supply technologist is simplified in the holds of vessels and the unprofitableness of vessels in the ports of arrival under decontamination is eliminated.

Claims (1)

METHOD OF DISINFECTING FOOD CARGOES IN VESSELS OF VESSELS from harmful arthropods, which consists in treating them with carbon dioxide, distinguished by the fact that, in order to increase efficiency and simplify the technology of disinfection, food products are treated with dioxide in conjunction with methyl bromide, and the components are taken amounts of 30-40 vol.% and 1.5 g / m ^3, respectively. (S SU „„ 1191046 / > I 1