KR101415341B1 - Method making evening primrose seed oil - Google Patents

Abstract

The present invention relates to a method of manufacturing evening primrose seed oil. The method includes: a cleaning and soaking step (S1) of cleaning evening primrose seeds and soaking the seeds in water; a peeling and cleaning step (S2) of peeling the evening primrose seeds and cleaning the peeled evening primrose seeds; a drying step (S3) of drying the peeled evening primrose seeds; an oil expression preparation step (S4) of covering the evening primrose seeds with natural cotton cloth and again with hanji (traditional Korean paper handmade from mulberry trees); and an oil expression step (S5) of expressing oil from the evening primrose seeds covered with the natural cotton cloth and hanji. The evening primrose seed oil given in the present invention has a benzopyrene content much lower than a standard value, is excellent in reducing oxidation and acidification, and accordingly can be stored for a long time. Also, the present invention is able to manufacture the evening primrose seed oil containing fatty acid with excellent effects such as gamma linolenic acid through a very simple process.

Description

{Method making evening primrose seed oil}

The present invention relates to a method for producing evening primrose oil, which can inhibit oxidation and rancidity, is less susceptible to the detection of harmful substances, and improves the extraction ratio of other beneficial substances.

There are various unsaturated fatty acids in the human body, including Linolenic Acid and Gamma Linolenic Acid. It is an unsaturated fatty acid that can not be synthesized in the body and should be consumed as a plant from the outside. In the case of gamma-linolenic acid, it is extremely limited in natural evening primrose and breast milk.

Linolenic acid and gamma-linolenic acid in evening primrose oil are the precursors of prostaglandins, which are excellent for preventing adult diseases.

In particular, in vivo synthesis of gamma-linolenic acid prostaglandin, cholesterol lowering, prevention of hyperlipidemia, prevention of hypertension, prevention of arteriosclerosis, prevention of angina, treatment of obesity,

In addition, prostaglandins are very important substances that regulate blood pressure / blood glucose level / blood cholesterol level. If this is not done well, blood pressure, cholesterol levels, or asthma symptoms may develop. Therefore, the lack of gamma-linolenic acid in vivo means that the function of the body is not sufficient.

Furthermore, linoleic acid, which is contained in evening primrose seed oil, is an unsaturated essential fatty acid which is not synthesized in the human body but is rich in vegetable oils such as soybean, brown rice, wheat, cottonseed, sunflower and corn. However, the value of evening primrose oil is very important in that it contains the natural form of gamma-linolenic acid found only in breast milk.

Gamma-linolenic acid is the first synthetic compound in which linoleic acid is converted into various compounds after entering the body. In order to change from linoleic acid to gamma-linolenic acid, a substance (an enzyme) that mediates it is required. The enzyme is called Delta 6-Dissociation enzyme. An enzyme called Delta6-Dsseutrajera may not function or be deficient depending on the person.

This means that even if linoleic acid is ingested, it may not be synthesized in the body as gamma-linolenic acid. Therefore, these people should ingest plants that contain gamma-linolenic acid directly. Yeast, which contains gamma-linolenic acid in its natural form, has not been found now except for breast milk and evening primrose oil.

On the other hand, the evening primrose oil contains a large amount of linolenic acid, so the autoxidation is very large. In particular, gamma-linolenic acid, which shows the main efficacy of the evening primrose oil, can easily change isomerization, polymerization and other chemical components.

In addition, in order to coalesce the evening primrose oil, when the evening primrose seed is roasted at high temperature, a large amount of benzopyrene which is harmful to human body is generated.

Benzopyrene is a type of polycyclic aromatic hydrocarbon (PAH), which is known as an environmental hormone that causes various cancers and causes mutations when accumulated in the human body. These benzopyrines can be produced in the process of heating foods, and are produced by incomplete combustion of carbohydrates, proteins, and fats, which are the main components of foods, during cooking or processing of foods at high temperatures.

Also, in order to coalesce the evening primrose seed oil, the evening primrose seed oil contains a large amount of unsaturated fatty acid, which causes autoxidation by light or heat, resulting in a peroxidized lipid which is harmful to the human body.

Peroxide lipid is an unsaturated fatty acid that is oxidized by absorbing oxygen. When this substance accumulates in the body, the aging phenomenon accelerates, arteriosclerosis and liver disease occur.

Therefore, there is a need for a method for solving the above problems.

Korean Patent Publication No. 10-1994-0000050 Korean Patent Registration No. 10-0639562

In order to solve the above problems, the present invention provides a method of minimizing the oxidation and rancidity of seed oil, reducing the occurrence of harmful substances such as benzophenone and lipid peroxide, and improving the extraction rate of beneficial substances. In order to solve the problem.

In order to solve the above problems, the present invention provides a method of cleaning a sunflower seed, A peeling and washing step of washing the peeled evening primrose seeds after peeling the evening primrose seeds; A drying step of drying the peeled evening primrose seeds; A step of preparing the milky flowering seeds by wrapping them in natural mineral springs and wrapping them again using Hanji; A milking step of milking the evening primrose seeds wrapped by the natural mineral springs and Korean paper; And a control unit.

In addition, the present invention is characterized in that in the peeling and washing step, the peeled and floated pentagonal flower seed husk is separated using a natural mineral springs, and the evening primrose seed is filtered by natural mineral springs.

Further, the present invention is characterized by further comprising an antioxidant addition step of adding 0.05% by weight of hemp seed oil and 0.08% by weight of soybean oil to 99.87% by weight of the evening primrose oil obtained by milking in the milking step.

In addition, in the above washing and calling step, 3 kg of evening primrose seeds are washed in water for 1 minute using a fine mesh, and the evening primrose seeds settled in a fine mesh are called for 2 minutes in water, Washed again for 2 minutes; In the peeling and washing step, the called evening flower seeds are peeled off by water for 12 minutes at a revolution of 1750 / min; In this drying step, evening primrose seeds are naturally dried and then dried in a drying chamber at 250 ° C for 8 minutes; In the milking step, the evening primrose seeds are characterized by being milked at 40 DEG C and 6000kfg / cm < 2 > for 80 minutes.

According to the present invention as described above, benzopyran is detected to be significantly lower than the reference value, and the oxidation and acid-rust reducing effect is excellent, so that there is an effect that long-term storage is possible.

In addition, the present invention has the effect of producing evening primrose oil containing a lot of fatty acids having excellent effects such as gamma-linolenic acid through a very simple process.

1 and 2 are process diagrams for explaining a method of manufacturing evening primrose oil according to an embodiment of the present invention.

Hereinafter, a method for producing evening primrose oil according to the present invention will be described with reference to FIG.

The process for producing evening primrose oil according to the present invention is performed through the following process.

(1) Cleaning and Calling Step (S1)

3 ~ 5kg of sunflower seeds are washed in water for 1 ~ 2 minutes. In addition, foreign matter mixed with sunflower seeds is removed by using a fine mesh. At this time, the evening primrose seeds contained in the fine mesh are immersed in water for 2 ~ 3 minutes, and the evening primrose seeds are washed again for 2 ~ 4 minutes.

(2) peeling and washing step (S2)

The called evening flower seeds are peeled off by a peeling machine. At this time, the number of revolutions of the peeling machine is about 1750 / min, and it is driven for about 11 to 13 minutes. Here, the evening primrose seeds are rubbed by the rotating water in the pulp, and the skin is peeled.

The peeled evening primrose seeds are then washed once more with water. At this time, the washing is performed using natural mineral springs, and the evening primrose seeds mixed with water are settled in natural mineral springs, and foreign substances such as shells are floated, and foreign substances are filtered from the evening primrose seeds by filtering suspended foreign substances. Since the evening primrose seeds are filtered through the natural broad-leaved stream, the loss of very small-sized evening primrose seeds is minimized.

(3) Drying step (S3)

The dried evening primrose seeds are naturally dried in a drying cabinet and dried in a drying chamber of 245 to 255 ° C for 7 to 9 minutes for sufficient drying. At this time, the evening primrose seeds may only be dried naturally according to need.

 (4) milking preparation step (S4)

The dried evening primrose seeds are wrapped in natural mineral springs, and wrapped again using Korean paper.

(5) Milking step (S5)

Milkweed seeds, which are wrapped in the above-ground ginseng and Korean paper, are milked at 35 ~ 45 ℃ for 550 ~ 650kfg / ㎠ for 75 ~ 80 minutes.

The evening primrose oil produced by the above process is significantly lower in benzopyran than the standard value, and the major nutrients are not destroyed, the oxidizing and acid-rust reducing effect is excellent, and the long-term storage effect is obtained.

In addition, the present invention has an effect of milking evening primrose oil containing a lot of fatty acids having excellent effects such as gamma-linolenic acid through a very simple process.

The present invention may further include an antioxidant addition step (S600) in which 0.05 wt% of hemp seed oil and 0.08 wt% of soybean oil are added to 99.87 wt% of evening primrose oil after the milking step (S5) .

Thus, the evening primrose oil of the present invention exhibits higher oxidation and antioxidative effects.

First, wash 3 kg of evening primrose seeds in water for 1 minute. At this time, the foreign matter mixed with the evening primrose seeds is filtered by the fine mesh, and the evening primrose seeds are called for 2 minutes and then washed again for 2 minutes.

Then, the called evening flower seeds are peeled off through a peeling machine, and foreign matter mixed with natural mineral springs is filtered.

Subsequently, the evening primrose seeds are dried naturally in a dry room at 250 ° C for 8 minutes with a moist feeling.

The dried evening primrose seeds are wrapped in a ginkgo stream, the ginkgo seeds are wrapped by Korean paper, and the evening primrose seeds are not released, followed by milking by a milking machine.

At this time, the evening primrose seeds are milked for 80 minutes in a milking machine set at 40 캜, 600 kfg / ㎠.

Hereinafter, the characteristics of the above-mentioned milk of the evening primrose oil will be described.

Table 1 compares the standards of benzopyran content of evening primrose oil, which has been subjected to the distribution stage of 3 minutes of 210 ° C heat, based on the benzopyran content of the Korean Food and Drug Administration, the content of benzopyran in evening primrose oil according to this embodiment. Here, the number of the seeds of the evening primrose 1 ~ 5 is the number of the seeds picked up, and the better the number is from 5 to 1, the better.

Evening Flower Seeds Based on the benzopyran content of Korea Food & Drug Administration The benzopyran content (占 퐂 / kg) of the evening primrose oil according to the present embodiment The content of benzopyran seed oil (㎍ / ㎏) Seed 1

2 (占 퐂 / kg)

0.25 ([mu] g / kg) 1.70 ([mu] g / kg) Seed 2 0.27 ([mu] g / kg) 1.72 (占 퐂 / kg) Seed 3 0.32 (占 퐂 / kg) 1.75 (占 퐂 / kg) Seed 4 0.33 ([mu] g / kg) 1.79 ([mu] g / kg) Seed 5 0.35 (占 퐂 / kg) 1.80 ([mu] g / kg)

Table 1 shows that the evening primrose oil of the evening primrose oil contains much less amount of benzopyran than 2.0 mg / kg of the benzopyran standard of the Food and Drug Administration (hereinafter referred to as KFDA). In particular, it can be seen that the evening primrose oil of the present embodiment exhibits significantly lower benzoprene levels than that of the seed oil obtained by distributing it.

This result appears to be due to the fact that the direct carbonization process does not occur in the evening primrose seeds when the above-mentioned distribution step is not carried out, resulting in a significantly lower amount of benzopyrene.

Table 2 is a table comparing the benzopyran content of the evening primrose oil according to the present embodiment and the benzopyrene content of the evening primrose oil without using the natural broad-leaved broth and Korean paper.

Evening Flower Seeds Based on the benzopyran content of Korea Food & Drug Administration The benzopyran content (占 퐂 / kg) of the evening primrose oil according to the present embodiment The content of benzopyran (㎍ / ㎏) in sunflower seed oil without natural mineral springs and Korean paper Seed 1

2 (占 퐂 / kg)

0.25 ([mu] g / kg) 1.17 (占 퐂 / kg) Seed 2 0.27 ([mu] g / kg) 1.18 ([mu] g / kg) Seed 3 0.32 (占 퐂 / kg) 1.21 (占 퐂 / kg) Seed 4 0.33 ([mu] g / kg) 1.22 ([mu] g / kg) Seed 5 0.35 (占 퐂 / kg) 1.25 (占 퐂 / kg)

As shown in Table 2, it was found that the evening primrose oil obtained by using natural mineral springs and Korean paper was less in benzopyran than the seed oil.

These results show that the heat generated in the milking stage is not directly contacted with the evening primrose oil, but is buffered by the natural mineral springs and the hanji when the natural mineral springs and Korean paper are used, effectively removing the foreign matter containing the natural mineral springs and the kanji- It seems to be because it can.

In addition, reference numeral 3 denotes the peroxide value according to the passage time of the evening primrose oil according to the present example, and the distribution period of the evening primrose oil filtered by the fine squeezing net, Of the peroxide value. Here, Table 3 uses the seed 5, which is the best selected in Table 2, and the fine sieving system used is the usual one used for milking the oil in a typical micro-grain milking plant. The peroxide value refers to a value that indicates the degree of oxidation and rancidity.

storage duration Peroxide value (meq / kg) of evening primrose oil according to this example The peroxide value (meq / kg) of sunflower seed oil, which is milked and filtered by microdermabrasion using a general milking machine and subjected to general roasting, 0 0.5 (meq / kg) 1 (meq / kg) 5 0.5 (meq / kg) 1.3 (meq / kg) 15 0.6 (meq / kg) 2.0 (meq / kg) 20 0.8 (meq / kg) 2.3 (meq / kg) 25 1.2 (meq / kg) 2.8 (meq / kg)

As shown in Table 3, it can be seen that the evening primrose oil of the present invention exhibits a lower peroxide value than that of the evening primrose oil that has been milked through the distribution step. These results show that when the natural mineral springs and Korean paper are used, the floating matters can be effectively filtered out, thereby reducing the oxidizing action by a large amount of suspended matters. On the other hand, when the fine natural gas is filtered by the fine network, Is not sufficiently filtered and the oxidizing action is promoted by these foreign substances.

Table 4 also shows the peroxide value of the evening primrose oil according to the present invention and the peroxide value according to the passage time of the evening primrose oil filtered by the fine sieve netted without using the natural broadleaf and Korean paper . Here, Table 4 uses the seed 5, which is the best selected in Table 2, and the fine sieving system used is the usual one used when milking milk in a conventional micro grain milking plant.

storage duration Peroxide value (meq / kg) of evening primrose oil according to this example Peroxide value (meq / kg) of sunflower seed oil which was milked without using natural mineral springs and hanji and filtered by fine sieve. 0 0.5 (meq / kg) 1 (meq / kg) 5 0.5 (meq / kg) 1.2 (meq / kg) 15 0.6 (meq / kg) 1.8 (meq / kg) 20 0.8 (meq / kg) 2.1 (meq / kg) 25 1.2 (meq / kg) 2.5 (meq / kg)

As shown in Table 4, it can be seen that the evening primrose oil of the present invention exhibits a lower peroxide value than the natural broad-leaf mulberry and the evening primrose oil without using the Korean paper.

These results show that when using the natural mineral springs and Korean paper, it is possible to effectively filter the floats, thereby reducing the oxidizing action by a large amount of suspended matters. On the other hand, in the case of the natural mineral springs and the evening primrose oil without using Korean paper, It is difficult to effectively remove the foreign matter.

Table 5 is a table comparing crude fat contained in evening primrose oil according to the present embodiment and crude lipid contained in evening primrose oil filtered by fine sieve netted using a general milking machine through a general distribution step . Here, even-numbered flowering seeds 1 to 5 are numbers indicating the degree of seed selection, which is better from 5 to 1, and the fine sieving system used is the normal And crude fat is a substance extracted by ether.

storage duration
Percentage of crude fat (%) of evening primrose oil according to this example Percentage of crude fat (%) contained in the evening primrose oil filtered by fine sieve by milking using a general milking machine after the general frying step Seed 1 99.7 93.2 Seed 2 99.8 94.3 Seed 3 99.9 94.0 Seed 4 99.8 95.3 Seed 5 99.9 95.5

As can be seen from Table 5, the evening primrose oil according to the present embodiment contains significantly less foreign matter than the evening primrose oil having undergone the distribution step, and it can be seen that it contains a lot of pure fatty substances.

These results show that when the natural mineral springs and Korean paper are used, it is possible to effectively filter suspended matters, but it is because the residues such as oxides generated during distribution are not sufficiently filtered through the distribution step.

Table 6 is a table comparing crude fat contained in evening primrose oil according to the present embodiment and crude lipid contained in evening primrose oil milked using a general milking machine and filtered by a fine sieve. Here, even-numbered flowering seeds 1 to 5 are numbers indicating the degree of seed selection, which is better from 5 to 1, and the fine sieving system used is the normal will be.

storage duration
Percentage of crude fat (%) of evening primrose oil according to this example Percentage of crude fat (%) contained in the evening primrose oil which was milked using a general milking machine and filtered by a fine sieve. Seed 1 99.7 94.2 Seed 2 99.8 94.5 Seed 3 99.9 94.3 Seed 4 99.8 95.3 Seed 5 99.9 95.5

As can be seen from Table 6, the evening primrose oil according to the present embodiment contains much less foreign matter than the natural broad-leaved sunflower seed oil and the evening primrose oil without using the Korean paper, and it is found that the pure fatty acid is included in a large amount.

These results show that when using the natural mineral springs and Korean paper, it is possible to effectively filter the suspended solids, whereas when the fine mesh is used, the residue of oxides and the like are not sufficiently filtered.

Table 7 also shows the analysis of the components of crude fat contained in the evening primrose oil according to the present embodiment and the analysis of crude lipid contained in the evening primrose oil filtered by the fine sieve netted using a general milking machine through the general distribution step It is a table. Here, the seeds of the evening primrose used in Table 2 were the seeds 5 that were picked most finely, and the fine sieving system was the usual one used for milking the oil in a conventional micro grain plant.

Crude fat component
The crude fat component ratio (g / 100 g) of the evening primrose oil according to the present embodiment The crude fat content (g / 100g) of the evening primrose oil, which was milked using a general milking machine and filtered by a fine sieve, Palmitic acid 5.3 5.2 Stearic acid 1.7 1.6 Oleic acid 4.0 3.8 Lineleic acid 73.3 72.9 γ-Linolenic acid 7.8 3.2 Linolenic acid 6.6 6.5 Etc 1.3 6.8

As shown in Table 7, gamma-linolenic acid in the crude fat of the evening primrose oil of the present invention contains much more gamma-linolenic acid than the gamma-linolenic acid in the crude fat of the evening primrose oil after the distribution step, As shown in FIG.

These results show that when the natural mineral springs and Korean paper are used, effective filtering is performed and substances containing a large amount of beneficial components such as gamma-linolenic acid are passed through and other substances are filtered, while when using a general fine network, Linolenic acid, etc., as well as substances containing other ether-soluble components. These results also appear to be due to the fact that the main components are not destroyed in the case of this embodiment because they are not subjected to the distribution step.

Also, Table 8 is a table comparing the composition of crude fat contained in evening primrose oil according to the present embodiment and the analysis of crude lipid contained in evening primrose oil filtered by micro-sieving using a general milking machine. In this case, the best-selected seed 5 is used in the evening primrose seeds, and the fine sieving system used is a conventional one used for milking the oil in a conventional micro-grain plant.

ingredient
The crude fat component ratio (g / 100 g) of the evening primrose oil according to the present embodiment The crude fat content (g / 100g) of sunflower seed oil, which was milked using a general milking machine and filtered by a fine sieve, Palmitic acid 5.3 5.2 Stearic acid 1.7 1.5 Oleic acid 4.0 3.8 Lineleic acid 73.3 73.1 γ-Linolenic acid 7.8 3.4 Linolenic acid 6.6 6.5 Etc 1.3 6.5

As shown in Table 8, gamma-linolenic acid in the crude fat of the evening primrose oil of the present invention contains much more gamma-linolenic acid than the gamma-linolenic acid in the crude fat of the evening primrose oil, In addition, it can be seen that many other beneficial fatty acids are included.

As shown in Table 7, when the natural mineral springs and hanji are used, effective filtering is performed, and substances containing a large amount of beneficial components such as gamma-linolenic acid are passed through and other substances are filtered, while using a general fine network It appears that the substance contains not only beneficial components such as gamma-linolenic acid but also other ether-soluble components.

Table 9 to Table 11 show the peroxide value according to the passage time of the evening primrose oil when the conditions were changed in the step according to the present embodiment and the use of the mineral oil in cleaning, roiling, drying, milking, And peroxide value according to the passage of sunflower seed oil. Here, Tables 9 to 11 use Seed 5, which is the most sorted seed in Table 2.

storage duration The peroxide value (meq / kg) The peroxide value (meq / kg) when the washing step of this example was changed and the cleaning was performed simultaneously for 5 minutes, When the peeling step of this embodiment is changed to change the number of revolutions of the pulp to 1600 / min, the peroxide value When only the peeling step of this embodiment is changed to set the number of revolutions of the pulp to 1900 / min, The peroxide value (meq / kg) in the case of using a conventional fine mesh without using natural mineral springs by changing only the cleaning step after the peeling in this embodiment, 0 0.5 (meq / kg) 0.7 (meq / kg) 0.7 (meq / kg) 0.8 (meq / kg) 0.9 (meq / kg) 5 0.5 (meq / kg) 0.7 (meq / kg) 0.8 (meq / kg) 0.8 (meq / kg) 1.0 (meq / kg) 15 0.6 (meq / kg) 0.8 (meq / kg) 0.8 (meq / kg) 0.9 (meq / kg) 1.1 (meq / kg) 20 0.8 (meq / kg) 1.0 (meq / kg) 1.0 (meq / kg) 1.1 (meq / kg) 1.3 (meq / kg) 25 1.2 (meq / kg) 1.4 (meq / kg) 1.5 (meq / kg) 1.4 (meq / kg) 1.6 (meq / kg)

storage duration The peroxide value (meq / kg) The peroxide value (meq / kg) when dried naturally at 250 ° C for 8 minutes without drying for 8 minutes at 250 ° C after changing only the drying step of this embodiment, The peroxide value (meq / kg) when dried naturally at 220 ° C for 12 minutes without drying for 8 minutes at 250 ° C after changing only the drying step of this embodiment, The peroxide value (meq / kg) when milking for 70 minutes by changing only the milking step of this example, The peroxide value (meq / kg) in the case of milking for 80 minutes in the milking step of this example, 0 0.5 (meq / kg) 0.7 (meq / kg) 0.8 (meq / kg) 0.8 (meq / kg) 0.8 (meq / kg) 5 0.5 (meq / kg) 0.7 (meq / kg) 0.9 (meq / kg) 0.9 (meq / kg) 0.9 (meq / kg) 15 0.6 (meq / kg) 0.8 (meq / kg) 0.9 (meq / kg) 1.0 (meq / kg) 1.1 (meq / kg) 20 0.8 (meq / kg) 1.0 (meq / kg) 1.2 (meq / kg) 1.3 (meq / kg) 1.3 (meq / kg) 25 1.2 (meq / kg) 1.4 (meq / kg) 1.5 (meq / kg) 1.5 (meq / kg) 1.5 (meq / kg)

storage duration The peroxide value (meq / kg) Peroxide value (meq / kg) in the case of changing only the milking step of this embodiment and milking at 30 占 폚 The peroxide value (meq / kg) in the case of changing only the milking step of this embodiment and milking at 50 캜 The peroxide value (meq / kg) in the case of milking at 500 kfg / The peroxide value (meq / kg) in the case of milking at 700 kfg / 0 0.5 (meq / kg) 0.7 (meq / kg) 0.7 (meq / kg) 0.7 (meq / kg) 0.7 (meq / kg) 5 0.5 (meq / kg) 0.7 (meq / kg) 0.8 (meq / kg) 0.7 (meq / kg) 0.7 (meq / kg) 15 0.6 (meq / kg) 0.9 (meq / kg) 0.9 (meq / kg) 0.9 (meq / kg) 0.8 (meq / kg) 20 0.8 (meq / kg) 1.3 (meq / kg) 1.3 (meq / kg) 1.1 (meq / kg) 1.0 (meq / kg) 25 1.2 (meq / kg) 1.5 (meq / kg) 1.4 (meq / kg) 1.4 (meq / kg) 1.4 (meq / kg)

When the conditions of one of the steps of the present embodiment are examined, it is understood that the peroxide value that can be known for oxidation and acid corrosion is slightly higher than that of the present embodiment as shown in Tables 9-11. This seems to be due to the fact that the oxidation inhibitors are not sufficiently removed or the internal substances preventing the oxidation, which are contained in the evening primrose seeds, are not sufficiently extracted when some conditions are changed in manufacturing the evening primrose oil.

A second embodiment according to the present invention will be described with reference to FIG.

0.05% by weight of hemp seed oil and 0.08% by weight of soybean oil were added to 99.87% by weight of the evening primrose oil after the step from step 1 to step S4 of Example 1 to produce evening primrose oil, have.

Here, the efficacy of Example 2 is as follows.

Table 12 is a table comparing the peroxide value of the evening primrose oil according to Example 1 and the evening primrose oil according to Example 2 according to the passage of time. Table 12 shows the seed 5 selected from Table 2.

storage duration Peroxide value (meq / kg) of evening primrose oil according to Example 1 Peroxide value (meq / kg) of evening primrose oil according to Example 2, 0 0.5 (meq / kg) 0.3 (meq / kg) 5 0.5 (meq / kg) 0.3 (meq / kg) 15 0.6 (meq / kg) 0.5 (meq / kg) 20 0.8 (meq / kg) 0.5 (meq / kg) 25 1.2 (meq / kg) 0.7 (meq / kg)

As shown in Table 12, it was found that the evening primrose oil of Example 2 exhibited a lower peroxide value than the evening primrose oil of Example 1. These results appear to be due to the antioxidant action of vitamin E and other antioxidants contained in canned seed oil and soybean oil.

Table 13 also shows that the evening primrose oil of Example 2 in which 0.13% by weight of sesame oil was added to evening primrose oil according to Example 1, and the evening primrose oil of Example 2 in which hemp seed oil and soybean oil were added in amounts of 0.13% 1 of perennial flower seed oil. Table 13 shows the seed 5 selected from Table 2.

storage duration Peroxide value (meq / kg) of evening primrose oil according to Example 1 Peroxide value (meq / kg) when sesame oil was added to evening primrose oil according to Example 1, The peroxide value (meq / kg) of the evening primrose oil according to the hemp seed oil of Example 2, Peroxide value (meq / kg) of evening primrose oil according to soybean oil of Example 2 0 0.5 (meq / kg) 0.4 (meq / kg) 0.4 (meq / kg) 0.5 (meq / kg) 5 0.5 (meq / kg) 0.4 (meq / kg) 0.5 (meq / kg) 0.5 (meq / kg) 15 0.6 (meq / kg) 0.5 (meq / kg) 0.6 (meq / kg) 0.6 (meq / kg) 20 0.8 (meq / kg) 0.6 (meq / kg) 0.7 (meq / kg) 0.8 (meq / kg) 25 1.2 (meq / kg) 0.9 (meq / kg) 1.1 (meq / kg) 1.1 (meq / kg)

As can be seen from Table 13, in case of adding hempseed oil or soybean oil, the oxidation and rancidity of evening primrose oil according to this example is similar to that of Example 1 or slightly improved. The peroxide value of the evening primrose oil of Example 1 to which antioxidative sesame oil was added was slightly lower than that of Example 1 but the peroxide value of the evening primrose oil according to Example 2 described in Table 12 was slightly higher or similar than that of the evening primrose oil .

Table 12 and Table 13 show that the addition of the cannabis seed oil and the soybean oil improves the oxidation and oxidation inhibition effect of the evening primrose oil more than when added separately or when added with sesame oil .

Claims (4)

Washing and calling step (S1) washing and evening of evening primrose seeds;
A peeling and washing step (S2) of washing the peeled evening primrose seeds after peeling the evening primrose seeds;
Drying step (S3) of drying the peeled evening primrose seeds;
(S4) a step of wrapping the evening primrose seeds with natural mineral springs and wrapping them again using Hanji;
A milking step (S5) of milking the evening primrose seeds wrapped by the natural mineral springs and Korean paper;
Wherein the step of preparing the evening primrose oil comprises the steps of:
The method according to claim 1,
Characterized in that in the peeling and washing step (S2), the peeled and floated evening primrose seeds are separated using a natural mineral springs, and the evening primrose seeds are filtered by natural mineral springs. 3. The method of claim 2,
Further comprising an antioxidant addition step (S6) of adding 0.05% by weight of hemp seed oil and 0.08% by weight of soybean oil to 99.87% by weight of the evening primrose oil obtained by milking in the milking step (S5) Way.
4. The method according to any one of claims 1 to 3,
In the washing and calling step (S1), 3 kg of evening primrose seeds are washed in water for 1 minute using a fine mesh, and the evening primrose seeds settled in the fine nail are called for 2 minutes in water, Lt; / RTI >minutes;
In the peeling and washing step (S2), the called evening flower seeds are peeled off by water for 12 minutes at a revolution speed of 1750 / min of the pulp;
In the drying step (S3), the evening primrose seeds are dried naturally in a drying chamber at 250 DEG C for 8 minutes after natural drying;
Wherein the evening primrose seeds are milked at 40 DEG C and 6000 kfg / cm < 2 > for 80 minutes in the milking step (S5).

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