RU2264721C1 - Refined deodorized corn oil with hypolipidemic properties - Google Patents

Abstract

FIELD: food processing industry, in particular production of functional foodstuffs.

SUBSTANCE: claimed oil is obtained by treatment hydrated corn oil in thin (0.1-0.2 mm) film helix-rotating at rate of 20-40 c^-1 at 60-80°C followed by neutralizing of treated oil with aqueous sodium silicate with concentration of 200-270 g/l under excess of 5-15 % at 60-80°C, and separation of neutralized oil from soap stock by settling. Neutralized oil is washed with water in amount of 5-15 % based on oil mass at 80-90°C followed by separation of washed neutralized oil from washing water, settling, filtering and deodorization at 160-170°C and residual pressure of 1-3 mm Hg.

EFFECT: vegetable oil useful in normalizing of lipid metabolism, particularly in reducing of lipid levels in blood and liver.

3 tbl, 3 ex

Description

The invention relates to the food industry and can be used for the production of functional food products.

Known refined corn deodorized oil with weak lipid-lowering properties ("Corn oil" GOST 8808-2000).

The disadvantage of this oil is its low effectiveness when normalizing lipid metabolism disorders.

The objective of the invention is the creation of physiologically valuable corn refined deodorized oil with increased lipid-lowering properties.

The problem is solved in that the corn refined deodorized oil having lipid-lowering properties is corn oil obtained by treating hydrated corn oil in a thin, spiraling film with a thickness of 0.1-0.2 mm at a speed of 20-40 s ^-1 at at a temperature of 60-80 ° C, followed by neutralization of the treated oil with an aqueous solution of sodium silicate at a concentration of 200-270 g / l with an excess of 5-15% at a temperature of 60-80 ° C with separation of the neutralized oil from soap stock by settling, washing and neutralizing water in an amount of 5-15% by weight of oil at a temperature of 80-90 ° C, followed by separation of the washed neutralized oil from the washing water by settling, drying, filtering and deodorizing at a temperature of 160-170 ° C and a residual pressure of 1-3 mm RT .art.

The lipid-lowering effect is to normalize lipid metabolism, in particular, to reduce the excess content of substances belonging to the class of lipids in the blood and liver.

Currently, in the treatment of hyperlipidemia, more and more preference is given to non-pharmacological agents, as they minimize the risk of side effects from the drugs used.

Among non-drug methods of treatment for hyperlipidemia, the leading role belongs to diet therapy and the use of natural biologically active substances. Among the latter, vegetable oils and preparations based on them are widely used.

However, there is evidence that a diet high in sunflower oil has a contraindication for use in some forms of hyperlipidemia, as it leads to an increase in the serum mass fraction of cholesterol.

Refined deodorized corn oil, obtained so far by traditional technology, does not exhibit pronounced physiological activity, including with respect to lipid-lowering properties. This is due to the use of severe technological regimes leading to the destruction of beneficial substances, such as sterols, tocopherols, carotenoids, and their loss of natural biologically active properties.

The use of a new technology, which consists in processing hydrated corn oil in a thin spiral-spinning film 0.1-0.2 mm thick with a rotation speed of 20-40 s ^-1 at a temperature of 60-80 ° C, followed by neutralization of the treated oil with an aqueous solution of sodium silicate concentration of 200-270 g / l with an excess of 5-15% at a temperature of 60-80 ° C with separation of the neutralized oil from soap stock by settling, washing the neutralized oil with water in an amount of 5-15% by weight of the oil at a temperature of 80-90 ° C followed by washed neutral the name of the oil from rinsing water by settling, drying, filtering and deodorizing at a temperature of 160-170 ° C and a residual pressure of 1-3 mm Hg, allows you to maximize maintain and enhance the natural properties of refined corn deodorized oil, which determines the manifestation of lipid-lowering properties .

It is known that substances with a lipid-lowering effect, realize it by lowering the level of total cholesterol and triacylglycerols in the blood plasma, reducing the synthesis of cholesterol and its esters by hepatocytes, normalize the structure of low density lipoproteins. In addition, at the cellular level, lipid-lowering agents contribute to the normalization of the liquid properties of cell membranes and the functional activity of the receptors located there. This helps to improve the interaction of lipoproteins with enzymes and to improve lipoprotein catabolism at the cellular level.

In connection with the criteria for the presence and degree of manifestation of the lipid-lowering effect, changes in the level of cholesterol and triacylglycerols in the liver and in blood serum when using the test lipid-lowering agent can serve.

The data characterizing the lipid-lowering effect of the claimed product is corn refined deodorized oil, confirmed in experiments on white rats, 25% of the fat ration of which was provided by the specified oil. The control group of animals received similar fatty mixtures, 25% of which was provided by refined corn deodorized oil obtained by traditional technology. Feeding was carried out according to the principle of "plenty" with free access to water. The duration of the experiments was 3 months.

The hypolipidemic effect of the inventive refined corn deodorized oil is illustrated by examples, the initial indices of which were the modes of its preparation, and experimentally determined indices were the mass fraction of triacylglycerols in blood serum and in the liver.

Example 1. Refined corn deodorized oil was obtained by treating hydrated corn oil in a thin spiral film 0.2 mm thick with a rotation speed of 40 s ^-1 at a temperature of 60 ° C, followed by neutralization of the treated oil with an aqueous solution of sodium silicate at a concentration of 200 g / l s an excess of 15% at a temperature of 60 ° C with the separation of the neutralized oil from soap stock by sedimentation, washing the neutralized oil with water in an amount of 5% by weight of oil at a temperature of 80 ° C, followed by separation of the washed the neutralized oil from the wash water by settling, drying, filtering and deodorization at 170 ° C and residual pressure of 3 mm Hg

The values of the studied indicators are shown in table 1.

Example 2. Refined corn deodorized oil is obtained by treating hydrated corn oil in a thin spiral film of 0.1 mm thickness with a rotation speed of 30 s ^-1 at a temperature of 70 ° C, followed by neutralization of the treated oil with an aqueous solution of sodium silicate at a concentration of 250 g / l s an excess of 10% at a temperature of 70 ° C with the separation of the neutralized oil from soap stock by settling, washing the neutralized oil with water in an amount of 10% by weight of the oil at a temperature of 90 ° C, followed by separation of the washed about neutralized oil from washing water by settling, drying, filtering and deodorizing at a temperature of 160 ° C and a residual pressure of 1 mm Hg

The values of the studied indicators are shown in table 2.

Example 3. Refined corn deodorized oil obtained by treating hydrated corn oil in a thin spiral film of 0.15 mm thickness with a rotation speed of 20 s ^-1 at a temperature of 80 ° C, followed by neutralization of the treated oil with an aqueous solution of sodium silicate at a concentration of 270 g / l s an excess of 5% at a temperature of 80 ° C with the separation of the neutralized oil from soap stock by sedimentation, washing the neutralized oil with water in an amount of 15% by weight of the oil at a temperature of 90 ° C, followed by separation of the washed about neutralized oil from washing water by settling, drying, filtering and deodorizing at a temperature of 160 ° C and a residual pressure of 2 mm Hg

The values of the studied parameters are shown in table 3. As can be seen from tables 1-3, rats treated with the inventive refined corn deodorized oil had significantly lower rates characterizing lipid metabolism in the body, which indicates the manifestation of lipid-lowering properties of the oil.

Thus, the inventive refined corn deodorized oil is a natural biologically active substance with a lipid-lowering effect, and can be recommended for direct consumption.

Table 1 Indicators Experienced group Control group Mass fraction of triacylglycerols in blood serum, mmol / l 1.45 2.28 Mass fraction of triacylglycerols in the liver, mmol / l 5.15 7.18 table 2 Indicators Experienced group Control group Mass fraction of triacylglycerols in blood serum, mmol / l 1.40 2.28 Mass fraction of triacylglycerols in the liver, mmol / l 5.10 7.18 Table 3 Indicators Experienced group Control group Mass fraction of triacylglycerols in blood serum, mmol / l 1.35 2.28 Mass fraction of triacylglycerols in the liver, mmol / l 5.01 7.18

Claims (1)

Refined deodorized corn oil having lipid-lowering properties, characterized in that it is corn oil obtained by treating hydrated corn oil in a thin spiral film of 0.1-0.2 mm thickness with a rotation speed of 20-40 s ^-1 at a temperature 60-80 ° C, followed by neutralization of the treated oil with an aqueous solution of sodium silicate with a concentration of 200-270 g / l with an excess of 5-15% at a temperature of 60-80 ° C with separation of the neutralized oil from soap stock by settling, washing the neutral oil in water in an amount of 5-15% by weight of oil at a temperature of 80-90 ° C followed by separation of the washed neutralized oil from the washing water by settling, drying, filtering and deodorizing at a temperature of 160-170 ° C and a residual pressure of 1-3 mm RT . Art.