KR101688395B1 - Manufacturing method of filter for reducing pesticide residue of root vegetables and filter thereof - Google Patents

Abstract

The present invention relates to a method of manufacturing a filter for reducing residual pesticide residues in a root vegetable, and more particularly, Filling the filter member with activated carbon, and sealing the filter member filled with the activated carbon.
By attaching the residual pesticide reduction filter of the present invention produced by the above production method to the stem of the root vegetables being cultivated before spraying the pesticide, accumulation of the pesticide on the roots of the root vegetables can be drastically reduced, have.
In addition, the filter of the present invention is made of an eco-friendly material such as activated carbon, which does not affect the growth of crops, and can be easily produced and used at low cost, thereby improving economical efficiency and utility.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a pesticide reducing filter of a root vegetable,

The present invention relates to a method of manufacturing a filter for reducing residual pesticide residues in a root vegetable, and more particularly, Filling the filter member with activated carbon, and sealing the filter member filled with the activated carbon.

By attaching the residual pesticide reduction filter of the present invention produced by the above production method to the stem of the root vegetables being cultivated before spraying the pesticide, accumulation of the pesticide on the roots of the root vegetables can be drastically reduced, have.

Root (roots) is a generic term for vegetables to eat edible roots, such as radishes, carrots, burdock, etc., except for the roots of roots, sweet potatoes, yams and other root roots are also used, There are potatoes, rootstocks, ginger, taro, and onions that have been deformed into leaves and shiitake.

Among the root vegetables, ginseng, garlic, rosewood, bellflower, and rhubarb are widely used as health foods because they contain a large amount of beneficial ingredients as well as various physiologically active substances.

However, in cultivating these root vegetables, a variety of pesticides have been used to protect root vegetables from various pathogens and to treat them when they are infected with pathogens. These pesticides may remain even after peeling or washing of root vegetables.

In particular, ginseng has a long period of cultivation of 4 ~ 6 years and is semi-omega crop. Therefore, it is difficult to control the pest control due to its poor tolerance and abrasion resistance. It is necessary to use pesticides with weak physiological characteristics. Standard ginseng cultivation method is 11 times Spraying is recommended.

As a result of frequent spraying of pesticides, a large amount of pesticide residues are detected in ginseng. According to the survey by the National Agricultural Products Quality Management Service in Gyeongbuk Province, from 2010 to 2012, the rate of insufficient pesticide residues in ginseng was five times that of ordinary agricultural products.

In order to supply safe ginseng to consumers, it is necessary to analyze the residual amount of pesticides in ginseng, and the unsuitable ginseng exceeding the residue tolerance standard will be delayed due to the postponement of shipment and disposal To prevent the distribution of the market.

Thus, there is a need for a method for removing pesticides remaining in cultivated plants in order to provide enhanced pesticide residue control and consumer safe food.

As a conventional technique of the present invention, Japanese Patent Application Laid-Open No. 10-2005-0044978 discloses a method of selecting a root vegetable such as ginseng, garlic, bellflower, and rosemary, washing and sterilizing the root vegetable, Discloses a technique for improving functionalities expressed in root vegetables and mushrooms through the inactivation and cultivation of mushroom seedlings such as mushroom, mushroom, and mushroom to decompose the residual pesticide remaining in the root vegetables and to interact with the components of the root vegetables and mushroom bacteria.

In addition, in Patent No. 10-1210522, 5 to 10 parts by weight of rice bran oil and 2 to 5 parts by weight of lecithin are mixed in 10 to 20 parts by weight of palm oil, 10 to 30 parts by weight of an isopropyl alcohol organic solvent and 8 to 30 parts by weight of sodium triphosphate, And 15 to 15 parts by weight of a surfactant selected from the group consisting of ethylene oxide and polyhydric alcohols, and 5 to 15 parts by weight of triglycerides as an emulsifier are added thereto. The resulting mixture is stirred at 40 to 50 DEG C at 3,000 to 4,000 rpm Oil wrapped around the outer surface of root vegetables using a detergent composition made of colloidal phase. A powder obtained by firing the shellfish in the temperature range of 600 ~ 1200 ℃ by performing the first step of washing / removing the fat and pollutants and dissolving calcium oxide of 95.0w% or more in CaO content in the range of 1.0 ~ 5w% And a second step of decomposing and removing the residual pesticide components of the root vegetables using the obtained alkaline aqueous solution is continuously carried out.

However, the above-described techniques have a problem that it is difficult to easily apply the harvested crop to a separate process in terms of cost, time, and economical efficiency.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a method of manufacturing a filter capable of drastically reducing residual pesticide residues in a root vegetable only by attaching it to the stem of cultured root vegetables, And to provide a filter for reducing residual pesticide residues in root vegetables.

According to an aspect of the present invention, there is provided a method of manufacturing a filter, comprising: preparing a filter member having a hygroscopic property and a breathable property; And filling the filter member with activated carbon and sealing the filter member filled with the activated carbon. The present invention also provides a method for manufacturing a pesticide reducing filter for a root vegetable.

According to one embodiment of the present invention, the activated carbon has a particle size of 4 mesh to 100 mesh.

According to another embodiment of the present invention, the root vegetables are selected from ginseng, red pepper, garlic, horse chestnut, yam, bellflower, radish, carrot, sweet potato and burdock.

According to another embodiment of the present invention, the filter is attached to the stem of cultured root vegetables before spraying the pesticide.

The present invention also provides a residual pesticide reduction filter for root vegetables produced by the above method.

The method for producing a residual pesticide reducing filter of the present invention and the residual pesticide reducing filter produced thereby can remarkably reduce the pesticide residues in root vegetables such as ginseng only by sticking to the stem of cultured root vegetables.

In addition, the filter of the present invention is made of an eco-friendly material such as activated carbon, which does not affect the growth of crops, and can be easily produced and used at low cost, thereby improving economical efficiency and utility.

Therefore, the root vegetables cultured using the filter of the present invention are expected to contribute to the safe agricultural production and the export of domestic crops, since they meet the domestic and overseas pesticide standards.

1 is a schematic diagram of a residual pesticide reduction filter according to an embodiment of the present invention.
2 is a photograph showing activated carbon used in an embodiment of the present invention.
FIG. 3 is a photograph showing the cultivation of a residual pesticide-reducing filter according to an embodiment of the present invention attached to a ginseng stem.
4 is a graph showing the residual pesticide reduction rate of the residual pesticide reduction filter according to the embodiment of the present invention.

The present invention provides a method of manufacturing a filter member, comprising: preparing a filter member having a hygroscopic property and a breathable property; A step of filling the filter member with activated carbon, and a step of sealing the filter member filled with the activated carbon, to provide a method for manufacturing a residual pesticide reducing filter for a root vegetable and a filter manufactured thereby .

The activated carbon of the present invention may be any of granular activated carbon and activated charcoal powder. Specifically, the activated carbon may have a large specific surface area and a high adsorption reaction rate, but the present invention is not limited thereto.

In one embodiment of the present invention, the activated carbon may be processed to have a particle size of 4 mesh to 100 mesh, preferably 20 mesh to 40 mesh, more preferably 30 mesh . If the particle size is less than 4 mesh, the specific surface area of the activated carbon particle decreases and the adsorption rate decreases. When the particle size exceeds 100 mesh, the activated carbon is finely powdered to decrease the number of pores and the adsorption rate decreases.

The filter member of the present invention can be used without restriction as long as it is a material having hygroscopicity and permeability. Specifically, the filter member can be made of paper, fiber, metal, ceramic material, and may have a layered structure or a three-dimensional structure.

For example, the filter member of a paper or fiber material is preferably a layered structure, and the filter member of a metal or ceramic material preferably forms a three-dimensional structure.

The filter element of the present invention can be used by being commercially available or can be directly manufactured by a conventional method known in the art.

The filter material of the paper material may be paper, paper, paper, synthetic paper or the like.

The filter member of the fiber material may be a natural fiber or a synthetic fiber and may be made of cotton, hemp, dog, polyethylene, polyester, polypropylene, polystyrene, acrylic, nylon and glass fiber in the form of woven fabric or nonwoven fabric Can be used.

The filter member of the metal material may be formed into a porous form using iron, manganese, magnesium, aluminum, tin, gold, silver, nickel, zinc and alloys thereof.

The filter member of the ceramic material may be formed into a porous form using silicon carbide, alumina, silica, mullite, zirconia, titania, silymalinite, diatomaceous earth, clay, or a combination thereof.

The size of the filter member used in the present invention is not particularly limited and may be designed according to the type and size of the root vegetables. Specifically, it is preferable to set the size of the filter member to surround the stem of the root vegetables.

In one embodiment of the present invention, the residual pesticide reduction filter was manufactured using Korean paper having excellent hygroscopicity and air permeability. Activated charcoal and hanji were eco-friendly materials at the harvest time after the cultivation of the root vegetables, The filter collection may be performed in parallel while cutting the stem.

The root vegetables used in the present invention may include but are not limited to crops such as ginseng, red pepper, garlic, horse chestnut, yam, bellflower, radish, carrot, sweet potato and burdock.

In the present invention, pesticides means various pesticides such as insecticides, fungicides and herbicides used for protecting crops.

Hereinafter, the present invention will be described in detail with reference to Examples.

However, the following examples are intended to illustrate the contents of the present invention, but the scope of the present invention is not limited by the following examples.

Production Example 1: Production of a residual pesticide reducing filter

As shown in Fig. 1, Korean paper having a size of 10 cm in width and 10 cm in length was prepared, 2 g of activated carbon having an average particle size of 8 mesh was filled, and folded like a dotted line and wrapped in a paper was fixed with an adhesive to produce a residual pesticide reducing filter.

Production Example 2: Production of a residual pesticide reducing filter

A residual pesticide reducing filter was produced in the same manner as in Preparation Example 1 except that activated carbon having an average particle size of 16 meshes was used.

Production Example 3: Production of a residual pesticide reducing filter

A residual pesticide reducing filter was produced in the same manner as in Preparation Example 1 except that activated carbon having an average particle size of 30 mesh was used.

Production Example 4: Production of a residual pesticide reducing filter

A residual pesticide reducing filter was prepared in the same manner as in Preparation Example 1 except that activated carbon having an average particle size of 100 mesh was used.

Example 1: Cultivation of ginseng after attachment of residual pesticide reduction filter

The residual pesticide-reducing filter prepared in Preparation Example 1 was attached to ginseng stem of 2 cm in surface area before treatment with pesticide.

Generally, ginseng is cultivated for 4 ~ 6 years. However, residual pesticide reduction filter is attached in June ~ July, where stem growth is mostly occurred in the year of harvest, since the remaining pesticide is a problem in the last harvest season.

 The purpose of attaching the residual pesticide reduction filter is to prevent excessive accumulation of the primordial part by cutting off part of the pesticide solution that comes down the stem after spraying the pesticide. Therefore, the ginseng stem and the ginseng stem The filter was evenly wrapped around the stem so as to prevent gaps between the filters and adhered to the adhesive surface (FIG. 3).

The pesticide 6 components of Dimethomorph, Fluquinconazole, Pyraclostrobin, Pyrimethanil, Tebuconazole, and Trifloxystrobin, It was treated 5 times according to the customary cultivation method and collected at the end of October, the harvest time.

Example 2: Cultivation of ginseng after attachment of residual pesticide reduction filter

Ginseng was cultivated in the same manner as in Example 1 except that the residual pesticide reduction filter prepared in Preparation Example 2 was used.

Example 3: Cultivation of ginseng after attachment of residual pesticide reduction filter

Ginseng was cultivated in the same manner as in Example 1 except that the residual pesticide reduction filter prepared in Preparation Example 3 was used.

Example 4: Cultivation of ginseng after attachment of residual pesticide reduction filter

The ginseng was cultivated in the same manner as in Example 1 except that the residual pesticide reduction filter prepared in Preparation Example 4 was used.

Experimental Example 1: Pesticide analysis of cultivated ginseng

The cultivated ginsengs produced in Examples 1 to 4 were collected and analyzed for pesticides.

In general, the analysis of residual pesticides in ginseng is carried out by using LC / MS / MS method using the multi-component analysis method and the pre-processing method. The analytical method used in the present invention was analyzed by applying the Quetzture pretreatment method which is widely used recently.

10 g of the homogenized sample was weighed into a 50 mL centrifuge tube and added with 10 mL of Acetonitrile (MeCN) and shaken in a shaker for 1 minute. ₄ g of MgSO ₄ , 1 g of NaCl, 1 g of Trisodium citrate dihytrate and 0.5 g of disodium hydrogencitrate sesquihydrate were added, and the mixture was shaken again for 1 minute and centrifuged at 3,000 rpm for 5 minutes using a centrifuge. The supernatant was filtered through a 0.2 μm syringe filter and used as the sample solution. To make the sample equal to the initial condition of the mobile phase, 750 μL of water and 50 μL of acetonitrile were added to 200 μL of the sample solution to make 1000 μL (5-fold dilution) and analyzed by voltexing.

Standard substances for quantitative analysis and sample liquid preparation are shown in Table 1 below.

division
Reference material for calibration
Sample liquid
One 2 3 4 5 6 Target concentration 1 ug / L 5 [mu] g / L 10 [mu] g / L 25 / / L 50 / / L 100 [mu] g / L
Preparation method
Water 750 μL Water 750 μL Water 750 μL Water 750 μL Water 750 μL Water 750 μL Water 750 μL STD
20 / / L
50 μL STD
100 [mu] g / L
50 μL STD
200 / / L
50 μL STD
500 / / L
50 μL STD
1000 / / L
50 μL STD
2000 / / L
50 μL Acetonitrile
50 μL Blank
matrix
200 μL Blank
matrix
200 μL Blank
matrix
200 μL Blank
matrix
200 μL Blank
matrix
200 μL Blank
matrix
200 μL Sample extract 200 μL

Specifications of the mass spectrometer (LC / MS / MS) used in the present invention are shown in Table 2 below.

UPLC Agilent 1290-LC Column Thermo C18 1.9 m, 2.1 mm x 100 mm
Column Temperature: 40 ℃ Injector Injection volume: 5 μL


Mobile Phase


A: 5 mM ammonium formate, 0.1% formic acid in Water
B: 5 mM ammonium formate, 0.1% formic acid in methanol Time Flow rate (mL / min) A (%) B (%) 0 0.3 85 15 8.0 0.3 5 95 9.0 0.3 5 95 9.1 0.3 85 15 13.0 0.3 85 15 MS / MS AB 4500-MS Ionization Electrospray Ionization (ESI, positive)

As a result of comparing the reduction rate of residual pesticides according to the particle size of the activated carbon which is a filter filler, the reduction rate from 60.1% to 79.0% was uniform and high in Example 3, which is the most effective condition. The results of the residual pesticide reduction rate by the size of activated carbon particles and the components are shown in Table 3 and FIG.

Classification (Activated carbon
Particle size) Dimethomorph Fluquinconazole Pyraclostrobin Pyrimethanil Tebuconazole Trifloxystrobin Example 1 (8mesh) 51.1 44.2 68.0 50.9 60.7 48.3 Example 2 (16mesh) 55.8 60.6 59.8 65.8 78.6 50.5 Example 3 (30 mesh) 75.0 72.1 72.1 79.0 70.3 60.1 Example 4 (100 mesh) 57.2 60.0 80.9 82.9 53.6 51.8

(% Reduction of residual pesticide)

Claims (5)

Preparing a filter member having hygroscopic properties and breathability;
Filling the filter member with activated carbon having a particle size of 30 meshes; and
And sealing the filter member filled with the activated carbon, the method comprising the steps of:
Wherein the filter member is a single-
The pesticide is dimethomorph, Fluquinconazole or Trifloxystrobin,
Wherein the filter is attached to the stem of a cultivated root vegetable. delete 2. The method according to claim 1, wherein the root vegetables are selected from ginseng, roots, garlic, chunks, yams, bellows, radishes, carrots, sweet potatoes and burdock. delete A filter for reducing residual pesticide residues in root vegetables produced by the method of claim 1 or 3.

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