RU2219807C1 - Method for preparing of raw plant material before juicing - Google Patents

Abstract

FIELD: juice industry. SUBSTANCE: method involves, prior to juicing, treating raw plant material with preparation produced by sequential extracting of Mortierella strangulata micromycet biomass with the use of non-polar extractant in above-critical state, water, alkaline, water, acid, water, alkaline, and water, with following joining of first extract with solid residue, said preparation being used in an amount of 0,5-1•10⁴ mg/t; holding for 2-5 hours. Upon grinding, raw plant material is passed between paired electrodes. EFFECT: improved quality of ready product by eliminating of opalescence and increased efficiency. 2 ex

Description

 The invention relates to the technology of juice production.

 A known method of preparing vegetable raw materials before extracting the juice, providing for its grinding and transmission between paired electrodes (RU 2000719 C1, 10/15/1993).

 The disadvantage of this method is to obtain juice prone to microbial spoilage.

Closest to the proposed achieved result is a method of preparing vegetable raw materials before extracting the juice, comprising treating it with a lipid-containing extract from the biomass of micromycete Mortierella hygrophila, applied from a supercritical carrier, in an amount of 0.5-1 • 10 ⁴ mg / t in terms of the total content arachidonic and eicosapentaenoic acids, holding for 3-8 hours, grinding and passing between paired electrodes (RU 2155519 C1, 09/10/2000).

 This method allows you to increase the resistance of the juice to microbial spoilage, but has a low productivity, and the resulting juice opalescent, which is estimated as a deterioration in its organoleptic properties.

 The technical result of the invention is the elimination of opalescence and increased productivity.

This result is achieved by the fact that in the method for preparing vegetable raw materials before juice extraction, which involves grinding and passing between pair electrodes, according to the invention, the raw materials are treated with a preparation obtained by sequential extraction of biomass of Mortierella strangulata micromycete with a non-polar supercritical extractant, water, alkali, before grinding, water, acid, water, alkali and water, followed by combining the first extract with a solid residue, in an amount of 0.5-1 • 10 ⁴ mg / t and cured live 2-5 hours.

 The method is implemented as follows.

The dry biomass of micromycete Mortierella strangulata is extracted with a non-polar extractant, for example carbon dioxide or hexane, in a supercritical state. At this stage of extraction, the first extract is separated, which is further used to obtain the drug. Next, the biomass is sequentially extracted with water, alkali, water, acid, water, alkali and water. The solid residue obtained after completion of all the extraction stages listed above is combined with the first extract to obtain a preparation that is used to process plant materials at a rate of 0.5-1 • 10 ⁴ mg / t and incubated for 2-5 hours. The drug contains arachidonic and eicosapentaenoic acids and chitosan, which are capable of stimulating plant defense reactions and the synthesis of phytoalexins, and the amount of related substances of a lipid nature is reduced in comparison with the closest analogue. In combination with chitosan, arachidonic and eicosapentaenoic acids are more easily assimilated by plants, so the exposure time of raw materials before grinding can be reduced to 2-5 hours. Next, the plant material is crushed and subjected to electroplasmolysis by passing between paired electrodes. As a result of electroplasmolysis, the cell membranes of plant raw materials are destroyed, which leads to an increase in juice yield and the transition of phytoalexins into the juice, which impede its microbial spoilage. The lower in comparison with the closest analogue content of lipid substances in the stimulant of the protective reactions of plants does not lead to opalescence of the juice.

 Example 1

The preparation of biomass micromycete Mortierella strangulata is prepared according to the technology described above using carbon dioxide as a non-polar extractant, as caustic soda alkali and as hydrochloric acid. Greencod purple plum is treated with the drug in an amount of 1 • 10 ⁴ mg / t and incubated for 2 hours. A control batch of the same plum is treated with a CO ₂ extract from the biomass of micromycete Mortierella hygrophila in an amount of 1 • 10 ⁴ mg / t in terms of the total content of arachidonic and eicosapentaenoic acids and incubated for 3 hours. The plum is crushed and passed between the pair electrodes of the A9-KED electroplasmolizer, and then the juice is squeezed out. The juice of the control batch is opalescent. The shelf life of the juice of the experimental and control lots until the appearance of visually detectable signs of fermentation is the same.

 Example 2

 The juice is prepared according to example 1, but using anadolskaya cherries, hexane in the preparation of the preparation and a lipid-containing extract from the micromycete biomass, the consumption of the lipid-containing extract in terms of the same acids and preparation 0.5 mg / t and the exposure time for cherries of the experimental batch 5 hours, and for the control 8 hours. The result coincides with example 1.

 Thus, the proposed method allows to exclude opalescence of the juice and increase productivity by reducing the exposure time of raw materials before grinding.

Claims (1)

A method of preparing vegetable raw materials before extracting the juice, which involves grinding and passing between pair electrodes, characterized in that before grinding the raw materials are treated with a preparation obtained by sequential extraction of biomass of micromycete Mortierella strangulata with a non-polar extractant in a supercritical state, water, alkali, water, acid, water , alkali and water, followed by combining the first extract with a solid residue, in an amount of 0.5-1 · 10 ⁴ mg / t and incubated for 2-5 hours