KR101788393B1

KR101788393B1 - Vegetable oil manufacturing method

Info

Publication number: KR101788393B1
Application number: KR1020150124465A
Authority: KR
Inventors: 권지영
Original assignee: 김광수
Priority date: 2015-09-02
Filing date: 2015-09-02
Publication date: 2017-10-19
Also published as: KR20170027615A

Abstract

The present invention relates to a method for producing vegetable oil, comprising the steps of: washing plant seeds with water to remove impurities including stones; A dehydrating step of putting the washed plant seed into a grain dehydrator and dewatering to remove moisture; Drying the dehydrated plant seed using a drier; A step of putting the dried plant seeds into a milking machine and maintaining the temperature at 40 캜 or lower to extract perilla oil while squeezing; A re-milking step of re-introducing the plant seed residue separated and discharged from the oil to extract the raw oil; Filtering the milked oil with a filter paper to obtain purified raw oil; A packing step of packing the filtered raw oil in a predetermined amount; And a sterilization step of killing microorganisms in the raw oil.
Therefore, it is possible to increase the production amount by re-supplying the plant seed residue generated after milking, and prevent the corruption or deterioration that may occur in the perilla when the humidity is high as in the summer, It is possible to provide a method of producing hygienic vegetable oil by eradicating germs.

Description

Vegetable oil manufacturing method [0002]

The present invention relates to a method for producing vegetable oil, and more particularly, to a method for producing vegetable oil by subjecting plant seeds such as sesame, perilla seed, pine nut, walnut, ground trout, flaxseed, sunflower seed, evening primrose, To increase the production of perilla oil, and to sterilize the vegetable oil in a packaged state, thereby producing a hygienic vegetable oil.

Generally, vegetable seed oil is one of very beneficial foods of human body which is extensively extracted by pressing roasted grains such as sesame, perilla, soybean, and corn, and is widely used for cooking various foods by rich taste and flavor.

In particular, perilla is a perennial herb that belongs to the family Lamiaceae and is cultivated in various Asian countries such as Korea, China and Japan. In Korea, it is grown in various parts of the country and contains various useful ingredients, And leaf vegetables. That is, the perilla has three major nutrients such as fat (44%), protein (17%) and carbohydrate (28%), and α-linolenic acid, a kind of n-3 unsaturated fatty acid, It is occupied. Linolenic acid is associated with cancer cell proliferation inhibition, blood pressure lowering and thrombosis improvement, allergic improvement, retina and brain development. In addition, perilla is known to be a useful seed for health because it contains sterols, monoterpenes, tocopherols, polyphenol compounds and the like which exhibit physiological activities.

Recently, tocopherol has been known to prevent cardiovascular diseases and cancer, to support immune function, and to prevent and alleviate the degenerative diseases associated with aging, so that the demand for perilla, which is one of the largest natural sources of tocopherol, have.

Conventional methods for producing perilla oil include roasting high-temperature roasted perilla seeds by washing, and then extracting oil by pressing roasted perilla in a milking machine, or drying the perilla produced by washing And then extracting the oil by squeezing it in the after-milking machine.

However, the high-temperature roasting method may cause benzopyran, which is a carcinogen in the heat treatment process, and the low-temperature milking method has a problem in that the yield is lowered and productivity and price of perilla oil are increased.

Also, since moisture content is high in the rainy season with high humidity such as summer, there is a problem that the quality is deteriorated due to corruption or deterioration due to the low-temperature roasting method or the natural drying method.

For this purpose, when storing seeds, ultraviolet rays are treated to kill microorganisms or inhibit growth, thereby improving storage stability. However, in order to increase the ultraviolet ray exposure range of the plant seeds, the seeds are exposed to ultraviolet rays for a long time while agitating. Exposure to ultraviolet rays for a long time may cause oxidation in the lipids by generating radicals.

[Patent Document 1] Korean Patent Publication No. 10-2015-0061204

[Patent Document 2] Korean Patent No. 10-0830349

[Literature 3] Changes in lipid oxidation and antioxidants during ultraviolet irradiation of perilla and perilla oil: Wang Sun-Young et al., KOREAN J. FOOD SCI. TECHNOL., 2012, Vol.44, 8-13

It is an object of the present invention to provide a method and an apparatus for increasing the yield by increasing the production amount by re-feeding the plant seed after milking to the milking machine and extracting the raw oil, To provide a method for producing raw oil which can shorten the sterilization time in eradicating the milk in the packaged state and sterilize the microbacteria in a short time in order to prevent the deterioration in advance, to be.

An object of the present invention is to provide a method of cleaning a plant seed, which comprises washing a plant seed with water to remove foreign matter including a stone; A dehydrating step of putting the washed plant seed into a grain dehydrator and dewatering to remove moisture; Drying the dehydrated plant seed using a drier; A step of putting the dried plant seed into the milking machine and keeping the temperature at 40 캜 or lower to extract the oil while pressing; A re-milking step of re-introducing the plant seed residue separated and discharged from the oil to extract the raw oil; Filtering the milked oil with a filter paper to obtain purified raw oil; A packing step of packing the filtered raw oil in a predetermined amount; And sterilizing the microorganisms in the raw oil, wherein the sterilizing step includes irradiating the UV light having increased efficiency of the lamp by wrapping the outside of the UV lamp (L300) with the reflection plate (L200) onto the optical fiber (L400) And sterilizing the opposite end of the optical fiber exposed to the packed raw oil (L500).

The plant seeds are preferably one of perilla, pine nut, walnut, flaxseed, sunflower seed, evening primrose, Borage seed, black currant, pumpkin seed, lotus seed, and oed seed.

In the re-milking step, it is preferable that the plant seeds discharged after milking are mixed with plant seeds obtained through the washing step.

In addition, the sterilization step may further include one of sterilizing raw oil contained in a transparent packaging material container by using a UV lamp outside the packaging material, or sterilizing vegetable oil by injecting a socket type UV lamp into the packaging material .

In addition, in the re-milking step, it is preferable that oil is mixed with the plant seed residue at a rate of 1 to 3 wt% of the plant seed residue.

Thus, according to the present invention, it is possible to provide a method of producing raw oil that can produce raw oil with increased production by re-supplying plant seeds generated after milking.

In addition, it is possible to prevent the corruption or deterioration that may occur in the perilla when the humidity is high as in the summer, and to eliminate the microbacteria that can not be removed through the washing, thereby producing the raw oil that can be sanitarily produced in a short time .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a flowchart illustrating a method of manufacturing raw oil according to a preferred embodiment of the present invention;
2 is a schematic view for explaining a sterilization process according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and how to accomplish them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining a method for producing raw oil according to embodiments of the present invention.

FIG. 1 is a flowchart illustrating a method of manufacturing a preferred raw oil according to the present invention, and FIG. 2 is a schematic view for explaining a sterilization process according to an embodiment of the present invention.

Referring to FIG. 1, the method for producing raw oil according to the present invention includes a washing step (S100), a dehydrating step, a drying step (S200), a milking step (S300), and a re-milking step (S400). A filtration step (S500), a packaging step (S600) and a sterilization step (S700).

First, the washing step (S100) is a step of removing foreign matter, stones and impurities by washing the plant seed with water. Further, in the washing step, a washing machine can be used to facilitate the washing.

The dehydration step is a step of removing the water by removing the dehydrated plant seed after putting the washed plant seed into a grain dehydrator. The grain dehydrator is a device for dehydrating moisture contained in plant seeds or contained in plant seeds by using high-speed centrifugal force, A device for forcibly sucking water adhering to plant seeds using a fan, and the like.

In the drying step (S200), it is preferable that the dehydrated plant seed is placed in a drier and dried at 40 DEG C or lower, but the water content is made to be within 10%.

In the milking step (S300), the plant seeds are put into a crimped tube type milking machine, and the screw is rotated while compressing the oil while keeping the temperature at 40 ° C or lower. Here, the temperature condition of the milking machine is 10 占 폚 to 40 占 폚, and milking can be carried out using a hydraulic prime milking machine or an x-pella milking machine.

In the re-milking step (S400), the plant seeds after milking are shredded and put into a milking machine, and the milk is squeezed and milked by rotating the screw while keeping the temperature at 40 ° C or lower. In this case, only the plant seed residue (for example, Japanese mackerel) discharged after milking can be separately milked. In order to facilitate the introduction of the plant seed after milking, it is shredded using a blender or the like, You may.

The filtering step (S500) is a step of filtering the milked oil with a filter to obtain purified raw oil. The filtration step can be performed by filtration using a press filter or a cartridge filter, a membrane filter or a paper filter to obtain transparent and highly pure raw oil without sediment. In addition to the filter method, a natural precipitation method in a precipitation tank may also be used.

The packaging step S600 is a step of packing the stored raw oil in a predetermined amount. Here, the container used in the packaging step is transparent glass or plastic. The product can be stored and transported using ceramic.

The sterilization step (S700) is a step of irradiating the packaged raw oil with UV lamp within 5 minutes to kill the microorganism and obtain sterilized raw oil. Here, the UV lamp used in the packaging step is preferably a lamp having a wavelength of 253 nm to 400 nm or less. 2, in the sterilizing step S700, the UV light having the increased efficiency of the lamp is irradiated onto the optical fiber L400 by covering the outside of the UV lamp L300 with the reflection plate L200, The advantage of sterilizing the opposite end of the optical fiber in contact with the packaged vegetable oil (L500) is that it is possible to sterilize a large number of packaged vegetable oils (L500) with one UV sterilizer. An unexplained reference number 'L100' is a cooling fan for cooling the UV lamp.

The present invention will be described in more detail with reference to Examples and Comparative Examples of raw wool oil produced through the raw oil production method of FIG. However, the examples are illustrative of the present invention but are not limited thereto.

Perilla oil produced in the Examples and Comparative Examples was confirmed by using the following method.

The amount of perilla oil (g) was measured by weighing the weight of perilla oil excreted after milking and re-milking, and the amount of perilla (g) was measured by weighing the perilla produced after milking and re-milking . The number of microorganisms (number) was confirmed by the standard plate method of food science.

&Lt; Example 1 >

The raw oil was prepared according to the raw oil production method of FIG. 1,000 g of perilla seed and 1,000 g of silk discharged from the re-milking stage were put into an expeller milking machine, and the pericarp oil was squeezed while rotating the screw while keeping the temperature at 40 ° C or less. The milking yield was 365.1g per acre, 634.9g per acre, and no microorganisms were detected.

&Lt; Comparative Example 1 &

Except for the sterilization step, raw oil was prepared according to the raw oil production method of FIG. 1,000 g of perilla seed and 1,000 g of silk discharged from the re-milking stage were put into an expeller milking machine, and the pericarp oil was squeezed while rotating the screw while keeping the temperature at 40 ° C or less. Milk yield was found to be 365.1g per day, 634.9g per day, and 4.2x10 ³ microorganisms.

&Lt; Comparative Example 2 &

The raw oil was prepared according to the raw oil production method of FIG. 1 except for the washing and sterilization steps. 1,000 g of perilla seed and 1,000 g of silk discharged from the re-milking stage were put into an expeller milking machine, and the pericarp oil was squeezed while rotating the screw while keeping the temperature at 40 ° C or less. Milk yield was found to be 365.0 g per acre, 635.0 g for silkworm, and 6.2 × 10 ^{1 for} microorganisms.

&Lt; Comparative Example 3 &

Except for the re-milking step, raw oil was prepared according to the raw oil production method shown in Fig. 1,000 g of perilla seeds were placed in an expeller milking machine and milk was squeezed while rotating the screw while keeping the temperature at 40 ° C or less. The perilla oil was 319.8 g, the silkworm was 680.2 g, and no microorganisms were detected.

Table 1 shows the results of the production of the perilla oil according to the examples and the comparative examples.

division Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Produce
fair Cleaning step (S100) ○ ○ × ○ Drying step (S200) ○ ○ ○ ○ Milking step (S300) ○ ○ ○ ○ The re-milking step (4100) ○ ○ ○ × Purification step (S500) ○ ○ ○ ○ The packaging step (S600) ○ ○ ○ ○ Sterilization step (S700) ○ × × ○ production
result Perilla oil (g) 365.1 365.1 365.0 319.8 깻 (g) 634.9 634.9 635.0 680.2 Microorganism (number) Not detected 4.2 x 10 ³ 6.2 × 10 ¹ Not detected

As described above, according to the present invention, it is possible to increase the production yield, reduce the amount of waste of food waste, and to obtain clean and hygienic perilla oil through sterilization, .

In addition, the inventors of the present invention have conducted various experiments, and as a result, it has been found that milking rate is increased by adding perilla oil, which is a residue of plant seeds discharged after milking.

Generally, the milking facility is a batch type (milking is performed by applying oil pressure for a certain period of time with sesame) by utilizing a hydraulic milking machine, or the expeller type (continuous screw press) The oil and the vegetable seed residue (for example, oil cake) milked by the milking method can be separated, and continuous operation is also possible.

Here, the inventors of the present invention have experimented with various methods. As a result, it was possible to derive that perilla oil is extracted by milking a part of oil added to the oil cake. <Table 2> summarizes the results of perilla oil production to confirm these results. As can be seen from the table, when perilla oil is added to oilseed rape, the maximum yield of perilla oil is between 1 and 3% (the yield decreases when more than 3 wt% is added). However, when the perilla oil content was more than 7%, it was found that the milky oil was dampened by the dripping oil and it was difficult to inject into the inlet of the expander.

division Example 1 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Comparative Example 5 Comparative Example 6 input
material 깻 (g) 1,000 1,000 1,000 1,000 1,000 1,000 1,000 Perilla oil (g) 10 20 30 50 70 100 production
result Milking rate (%) 3.7 5.4 5.4 5.2 3.8 Milking
Impossible Milking
Impossible

* Here, the milking rate (%) is (extraction wastewater - input oil) / dong × 100.

In the case of addition of oil to the plant seed residue, the amount of oil to be reextracted is increased as compared with the case where oil is not added, so that the yield can be further increased and the amount of plant seed residue It is very environmentally friendly.

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Therefore, it should be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the foregoing detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalents thereof are included in the scope of the present invention Should be interpreted.

Claims

A washing step of washing the plant seed with water to remove foreign substances including stones;
A dehydrating step of putting the washed plant seed into a grain dehydrator and dewatering to remove moisture;
Drying the dehydrated plant seed using a drier;
A step of putting the dried plant seed into the milking machine and keeping the temperature at 40 캜 or lower to extract the oil while pressing;
A re-milking step of re-introducing the plant seed residue separated and discharged from the oil to extract the raw oil;
Filtering the milked oil with a filter paper to obtain purified raw oil;
A packing step of packing the filtered raw oil in a predetermined amount;
A sterilization step of killing microorganisms in the raw oil,
The sterilizing step may include irradiating the UV light to the optical fiber L400 by increasing the efficiency of the lamp by wrapping the outside of the UV lamp L300 with the reflection plate L200 and irradiating the opposite end of the UV- L500) to sterilize the vegetable oil.

The method according to claim 1,
Wherein the plant seeds are one of perilla, pine nut, walnut, flaxseed, sunflower seed, evening primrose, borage, black currant, pumpkin seed, lotus seed, and oed seed.

The method according to claim 1,
Wherein the re-milking step comprises mixing the plant seed residue discharged after milking with the plant seed obtained through the washing step, and then introducing the plant seed residue.

The method according to claim 1,
The sterilization step further includes one of sterilizing raw oil contained in a transparent packaging material container using a UV lamp outside the packaging container or sterilizing vegetable oil by injecting a socket type UV lamp into the packaging material &Lt; / RTI >

The method according to claim 1,
Wherein the oil is mixed with the plant seed residue at a rate of 1 to 3 wt% of the plant seed residue at the re-milking step.