Production of agent for plant treatment

FIELD: method for production of agents for biological plant protection.

SUBSTANCE: claimed method includes sequential extraction of biomass of Mortierella zychae micromycete with non-polar solvent, water, alkali, water, acid, water, alkali, and water and combining the fist extract with solid residue. As non-polar extractant liquefied gas is used, and at least in the first extraction step pressure in extraction mixture is periodically decompressed up to value, providing extractant boiling, and built up again to initial pressure.

EFFECT: decreased energy consumption.

 

The invention relates to the production technology of biological plant protection.

There is a method of extraction of biological materials, providing mixing it with a liquid extractant, heating the mixture to a temperature of 40-80°With periodic degassing the mixture with a supply of heat to maintain its temperature at 5-15°above the boiling temperature at the pressure of the vacuum and the pressure increases to its original value, followed by the separation of the extract (SU 1286232 A1, 30.01.1987).

This method is unacceptable for use as extractants of liquefied gases having a critical temperature below 40°, liquids with a boiling point below 40°and for the extraction of thermolabile and easily oxidizable substances, Besides the disadvantage of this method is the high energy intensity due to the low efficiency of energy use phase transition of the extractant for the destruction of the cellular structure of raw materials, due to the localization of the zone of boiling on teplopodvodyaschey surface.

Closest to the present invention is a method of production facilities for processing plants, providing sequential extraction of biomass micromycete Mortierella zychae nonpolar solvent in the supercritical state, water, alkali, water, acid, water, Selo the d and water and mixing the first extract from the solid residue, which provides the opportunity for each stage of extraction when the cart outside of the ultrasonic mechanical oscillations or their creation in the extraction mixture at each stage, starting from the second, by condensation of the vapor mixture in the extraction of the solvent or dispersion of liquefied natural gas (EN 2200406 C2, 20.03.2003).

The disadvantage of this method is the high energy intensity due to the low efficiency of energy use of the phase transition for the destruction of the cellular structure of raw materials due to the relatively uniform distribution by volume of the extraction mixture condensed vapor bubbles extractants.

The technical result of the invention is the reduction of specific energy consumption.

This result is achieved in that in the method of production tools for the processing plants, providing sequential extraction of biomass micromycete Mortierella zychae non-polar extractant, water, alkali, water, acid, water, alkali and water and mixing the first extract from the solid residue, according to the invention as a non-polar extractant using liquefied gas, and at least at the first stage of extraction pressure in the extraction mixture is periodically reset to the value that provides the lash of the extractant, and build up to source the values.

The method is implemented as follows.

Dry biomass micromycete Mortierella zychae sequentially extracted with nonpolar liquefied gas such as carbon dioxide or nitrous oxide, by well-known methods (Kasyanov GI and other Processing of plant raw material liquefied and compressed gases. - M.: Agroniiteipp, 1993. - 40 C.), water, alkali, water, acid, water, alkali and water in a known sequence (EN 2146314 C1, 27.07.1998) if known, the recommended parameters for each phase extraction (EN 2000066 WITH, 07.09.1993), after which the first extract obtained at the stage of extraction of non-polar liquefied gas, and the solid residue obtained after completion of all stages of extraction, mixed with obtaining the target product. At least at first, and preferably at each stage of extraction pressure in the extraction mixture is periodically reset to the value that provides the lash of the extractant, and increase to the original value corresponding to the vapor pressure of the extractant at a temperature of extraction.

Education each bubble of gas phase in the extraction mixture is accompanied by the creation of a shock wave that destroys the cellular structure of the biomass. As is known, the action of the shock wave weakens in proportion to the square of the distance from the epicenter, that is given in the om case, from the place of formation of a bubble of the gas phase. Upon release of pressure in the extraction of a mixture of particles of biomass are the centers of vaporization, and most of the bubbles formed directly on the surface of particles of biomass. The processing of the extraction mixture introduced from the outside by ultrasonic vibrations, as provided for in the closest analogue, has a rather low efficiency due to low efficiency of ultrasonic emitters, scattering of ultrasound in the wall of the extraction vessel, the interaction of the input and reflected on the interfaces of the phases of ultrasonic waves in the extraction mixture. Creating shock waves in the liquid ammonia, liquid chloride or liquid hydrogen fluoride in the extraction mixture in the gas phase or the condensation of water vapor, as provided for in the closest analogue is more effective than the introduction of external ultrasonic vibrations or heat supply in the vacuum extraction mixture, as in the first version. However, the formation or condensation of the bubbles of the gas phase in this case occurs in this case due to heat exchange with the liquid phase of the extraction mixture, i.e. at some distance from the particles of biomass, which results in the closest analogue in comparison with the method proposed large energy costs on the destruction of the cellular structure of the biomass is to obtain the target product, respectively. It called the difference will be greater, the greater the number of stages of extraction, which produce the destruction of the structure of the biomass, and the higher the value of water ratio at these stages of extraction, and ranges from 1.7 to 5 times for traditionally used water ratio values.

It should be noted that the phase change of the extractant in the first stage of extraction changes the composition of the first extract and the target product, respectively. Empirically established that the first extract and a solid residue correspond to THE 9365-004-16539818-03 and THE 9289-026-45111441-01, contain as active substances eicosatetraenoate, eykozapentaenovuyu acid and chitosan. To confirm the possibility of using the target product as immunostimulant and growth regulator of plants because of unidentified composition of related substances was carried out a series of comparative experiments on the processing of plant products, obtained by the proposed method and the closest analogue. Processing was carried out equal quantities of drugs in terms of the total content of chitosan, eicosatetraenoic and eicosapentaenoic acids. As test objects used wheat varieties Stefanka and cucumber varieties Wren.

Processing of wheat was carried out at the pre-stage and is vegetatie in the phase of the tube at a flow rate of drugs 0.5 mg/t and 0.5 mg/ha, respectively. Significant differences in germination, vigor, development of phytopathogens and yield is not found,

Processing cucumbers was performed on the pre-stage and vegetation in the flowering phase at a flow rate of drugs 1 g/t and 10 mg/ha, respectively. Significant differences in germination, vigor, obliterati, the development of pathogenic fungi and yield was not found.

Thus, the proposed method allows to reduce the specific energy consumption for the production of tools for the processing plants.

Method for the production of tools for the processing plants, providing sequential extraction of biomass micromycete Mortierella zychae non-polar extractant, water, alkali, water, acid, water, alkali and water, followed by mixing the first extract from the solid residue, characterized in that as non-polar extractant using liquefied gas, and at least at the first stage of extraction pressure in the extraction mixture is periodically reset to the value that provides the lash of the extractant, and increase to its original value.



 

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