KR101416545B1 - making method of kitchen detergent composition using waste edible oil - Google Patents

Abstract

The present invention relates to a method for producing a liquid detergent for kitchen, and more particularly, to a method for manufacturing a liquid detergent for kitchen which utilizes waste wasted oil, bamboo extract and bamboo extract, and has excellent antimicrobial activity.
The method for producing a liquid detergent for kitchen using the waste cooking oil of the present invention comprises a solid soap manufacturing step of producing a solid soap using waste cooking oil as a starting material, a pulverizing step of preparing a powder soap by pulverizing solid soap, A second addition step of adding the powdery soap to the alkali solution after the first addition step and stirring the mixture; and a second addition step of adding the powdery soap to the alkali solution after stirring and adding the fatty acid and the bamboo liquid to the alkali solution, And a step of adding citric acid and natural oil after the second addition step.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition,

The present invention relates to a method for producing a liquid detergent for kitchen, and more particularly, to a method for manufacturing a liquid detergent for kitchen which utilizes waste wasted oil, bamboo extract and bamboo extract, and has excellent antimicrobial activity.

Conventional kitchen cleaners are mainly composed of surfactants, cleaning aids, active ingredients, fragrances, water and the like. Among these cleaning agent components, those having cleaning performance and foaming property are mainly surfactants, and in particular, anionic surfactants are mainly used in liquid detergents.

Many kinds of germs reproduce in dishes, dishes, cloths, wastes, and chopsticks used in kitchens due to food debris and moisture, and the food waste remaining after cleaning is decomposed to give an unpleasant smell.

In addition, irritation is given to the skin of the user who contacts the detergent and the food waste, thereby causing inflammation. In addition, the odor of fish, meat, water smell (amine smell), kimchi (mercaptans smell), and food waste remaining in the sink drain and ammonia, amine Is difficult to remove with the conventional kitchen detergent composed of the above components.

That is, the conventional kitchen detergent does not have an antibacterial effect and a sterilizing effect at the same time in addition to the cleaning effect.

A dishwashing detergent containing an antibacterial component known as Nonoxynol-9, which is known as a dishwashing detergent having an antibacterial effect, is manufactured and sold, but such detergent is also an artificial chemical, so that side effects may be a problem .

Meanwhile, detergents such as lactose, which is mainly used for sterilization and cleaning, are known to sterilize about 50 kinds of bacteria, but they are not suitable for use as a kitchen detergent due to a strong irritating odor and toxicity to human body when consumed.

Therefore, sanitary appliances are often boiled and disinfected by household appliances or restaurants, or disinfected dishes using a separate ultraviolet disinfection device. The operation for disinfection after cleaning with detergent is troublesome, and if it is neglected, there is a fear that food poisoning or odor may be caused by bacteria.

On the other hand, waste cooking oil has a specific gravity smaller than that of water, and some types of waste cooking oil have a property of curing. When the discharged oil is discharged through the sewer, the pipe is clogged due to hardening, or after flowing into a river or river, Thereby blocking the supply of oxygen from the outside air to the water, thereby threatening aquatic ecosystems including aquatic organisms.

Recently, various methods of collecting and recycling waste cooking oil have been utilized. One of the recycled products using waste cooking oil is soap. Usually, at home, when cooking oil is mixed with caustic soda water and poured into a mold for 10 days or more, saponification reaction is naturally cured and used as soap.

However, the solid soap produced by this method is inadequate to be used as a liquid detergent, and there is a problem that unpleasant odor peculiar to the waste cooking oil remains.

It is an object of the present invention to provide a method for manufacturing a liquid detergent for kitchen which is capable of recycling waste cooking oil and is excellent in antibacterial activity.

In order to accomplish the above object, the present invention provides a method of manufacturing a liquid detergent for kitchen using waste cooking oil, comprising: a solid soap manufacturing step of producing a solid soap using waste cooking oil as a starting material; A pulverizing step of pulverizing the solid soap to prepare a powder soap; A dissolution step of dissolving potassium hydroxide in the bamboo extract to make an alkali solution; A first addition step of adding and stirring the fatty acid and the bamboo juice to the alkali solution; A second addition step of adding and stirring the powdery soap to the alkali solution after the first addition step; And adding a citric acid and a natural oil after the second addition step.

The solid soap manufacturing step comprises the steps of: a) adding water, caustic soda and bamboo liquid to the waste cooking oil to form a mixture, b) heating the mixture to promote the saponification reaction, and b) And cooling it.

The bamboo extract is characterized in that the extraction solvent is added to the bamboo leaf at a weight ratio of 50 to 150 times and then extracted at 70 to 90 ° C for 30 to 90 minutes.

Wherein the natural oil is a sine essential oil extracted from a sine by a supercritical fluid extraction method.

As described above, according to the present invention, waste edible oil can be recycled because waste edible oil is used as a material.

Further, the liquid detergent for the kitchen of the present invention contains bamboo extract and bamboo extract, and thus has excellent antibacterial activity.

Hereinafter, a method of manufacturing a liquid detergent for kitchen using a waste cooking oil according to a preferred embodiment of the present invention will be described in detail.

The liquid detergent for a kitchen according to an embodiment of the present invention largely includes a solid soap manufacturing step, a pulverizing step, a dissolving step, a first adding step, a second adding step, and a post-adding step. Each step will be explained in detail.

1. Solid soap manufacturing step

In the solid soap manufacturing step, solid soap is prepared from waste cooking oil as a starting material.

Waste cooking oil as starting material means cooking oil used for cooking food. Such waste cooking oil is contaminated with various foreign substances and used through purification process.

Filtration and precipitation are used as purification processes. The waste cooking oil is filtered by a sieve filter and then stored in a vat for 1 to 3 days to remove the solid content by sedimentation on the bottom.

In order to prepare the refined waste cooking oil as a solid soap, a caustic soda solution and a bamboo sap is added to the waste cooking oil to form a mixture. Caustic soda solution means that caustic soda is dissolved in water. 10 to 24 parts by weight of water, 8 to 18 parts by weight of caustic soda and 1 to 5 parts by weight of bamboo smoke liquor are mixed with 100 parts by weight of waste cooking oil.

Waste cooking oil, water and caustic soda cause saponification reaction. And the bamboo flour is to increase the antimicrobial activity and to remove the bad smell of the cooking oil.

Bamboo is an acidic liquid with a pH of about 2 to 4, which is obtained by condensing the smoke generated when bamboo is made into charcoal. Such bamboo smoke liquor is a substance obtained from nature, and has excellent antibacterial and deodorizing effect.

The bamboo flour is obtained by condensing the smoke generated in the charring process of charring and aging and refining the bamboo flour for 6 months or more. As an example of the production of bamboo shoots, a kiln with an oven on the front and a chimney on the back was installed on the ground. A bamboo tray cut into a length of about 60 cm was installed after a passage for collecting bamboo liquid and a collecting barrel were installed on the chimney. Seal the barrel. Then add fuel to the furnace and heat it at 700 ~ 900 ℃ for 10 ~ 12 hours. If the smoke coming from the chimney changes from white to transparent color, stop heating and cool. Cool down and remove charcoal. The collected bamboo shoots are stored for more than 6 months and then precipitated and filtered. A bamboo shoot having a pH of 2 to 4 can be obtained through the above-described method. Also, the bamboo shoot can be used by purchasing a commercially available product.

The purified edible oil and the caustic soda solution are mixed and aged at 40 to 50 ° C. to proceed the saponification reaction. Upon completion of the saponification reaction, the solid soap is prepared by cooling. The cooling can be carried out by leaving at room temperature for 2 to 6 hours.

2. Grinding step

The manufactured solid soap is subjected to a pulverizing step to produce a powder. Through the grinding step, the solid soap in the form of lumps is made of powdered soap. The average particle size of the powdered soap is about 20 to 100 mesh.

3. Dissolution step

In the dissolution step, potassium hydroxide is dissolved in the bamboo extract to make an alkali solution. In the present invention, bamboo extract is used instead of water to make an alkali solution. The antibacterial activity can be further increased by using bamboo extract.

Bamboo extract is extracted by adding extraction solvent to bamboo leaves. As the extraction solvent, at least one selected from water, a lower alcohol having 1 to 4 carbon atoms, a polyhydric alcohol, or a mixture thereof may be used. As the lower alcohol having 1 to 4 carbon atoms, methanol, ethanol and the like can be used. As the polyhydric alcohol, butylene glycol, propylene glycol, pentylene glycol and the like can be used. Mixtures of water and lower alcohols, mixtures of water and polyhydric alcohols, mixtures of lower alcohols and polyhydric alcohols, or mixtures of water and lower alcohols and polyhydric alcohols can be used as the mixture.

As an example of the extraction, water may be added to the bamboo leaf at a weight ratio of 50 to 150 times, followed by extraction at 70 to 90 ° C for 30 to 90 minutes. Further, a reflux cooling extraction method, an ultrasonic extraction method, or the like can be used.

1 to 5 parts by weight of potassium hydroxide is added to 100 parts by weight of the bamboo extract, and the mixture is stirred and dissolved to prepare an alkali solution.

4. First Addition Step

To the alkali solution, the fatty acid and the bamboo liquid are added and the first addition step of stirring is carried out. For rapid reaction, the alkali addition solution can be heated to about 80 캜 to carry out the first addition step. When the alkali solution is heated, the fatty acid and the bamboo liquid are added and stirred. The fatty acid may be added to the alkali solution in an amount of 6 to 10 parts by weight based on 100 parts by weight of the bamboo extract, and 0.1 to 3 parts by weight of the bamboo extract may be added to the alkali solution.

The bamboo liquid is the same as that used in the solid soap manufacturing step described above. It is preferable to use lauric acid as a fatty acid. Lauric acid has excellent foaming power.

5. Second Addition Step

After the first addition step, a second addition step of adding a powdery soap to the alkali solution and stirring is performed.

The powdery soap is added in an amount of 5 to 15 parts by weight based on 100 parts by weight of the bamboo extract. The alkali solution to which the flour soap has been added dissolves the powder soap while stirring at 35 to 45 DEG C for 30 to 90 minutes.

6. Follow-up steps

After the secondary addition step, a step of adding citric acid and natural oil is performed. 0.1 to 0.3 parts by weight of citric acid is added based on 100 parts by weight of the bamboo extract. The natural oil is added in an amount of 0.5 to 2.5 parts by weight based on 100 parts by weight of the bamboo extract.

After the addition, the mixture is stirred and left at room temperature for 2 to 4 days until the foam sinks, thereby preparing the liquid detergent for kitchen of the present invention.

Herbal oils can be used as natural oils. Herbal oils can be extracted from the herb by steam distillation, squeezing and supercritical fluid extraction.

Another example of a natural oil is a sine essential oil. Sign essential oils increase the antibacterial and deodorant properties of detergents. Sign (沙 仁 砂 仁) means the seed of the house. Amomum xanthoides ) is a ginger paste, about 1 m high, and the leaves are thin and long. Flowers bloom between spring and summer, the fruit is yellowish red, and the skin is thick and wrinkled. There are dozens of seeds in the fruit, the seed is called the sign. The main components of the sine are d-Camphor, d-Borneol, Bornyl acetate and Nerolidol. Pharmacological actions include activation of gastrointestinal motility to help digestion, . The sign is black gray brown, polyhedron, contains essential oil and has a distinctive scent and taste.

Supercritical fluid extraction is the preferred method for extracting essential oil from sinus. Supercritical Fluid Extraction is a supercritical fluid extraction method in which the supercritical fluid has a low viscosity and is highly permeable to the sample. Therefore, the extraction efficiency is high and the diffusion coefficient is high. Therefore, the extraction speed is fast, And the advantage of easy separation of the extraction residue and the solvent because the density difference between the sample and the supercritical fluid is large and the viscosity of the supercritical fluid is low.

Carbon dioxide can be used as a supercritical fluid for supercritical extraction and can be extracted under extraction conditions at a temperature of 35 to 45 DEG C and a pressure of 100 to 300 bar for 30 to 240 minutes.

Hereinafter, a method of manufacturing a liquid cleaning agent for a kitchen of the present invention will be described with reference to examples. However, the following examples are intended to illustrate the present invention in detail, and the scope of the present invention is not limited to the following examples.

(Example)

To 100 parts by weight of the waste cooking oil (soybean oil) which had been filtered and purified, 3 parts by weight of caustic soda solution and 13 parts by weight of caustic soda dissolved in 16 parts by weight of water were mixed and then reacted at 45 캜. And allowed to stand at room temperature for a certain period of time to be cooled to produce a solid soap and then pulverized to prepare a powder soap.

Water was added to the bamboo leaf at a weight ratio of 100 times, and then extracted at 80 ° C for 1 hour to prepare a bamboo extract.

To 100 parts by weight of the prepared bamboo extract, 3 parts by weight of potassium hydroxide was added and stirred to prepare an alkali solution. Then, 8 parts by weight of lauric acid and 1 part by weight of bamboo smoke solution were added while heating the alkali solution to 80 DEG C, and 10 parts by weight of the alkali solution was added, followed by stirring at 40 DEG C for 60 minutes to dissolve the powder soap. 0.2 parts by weight of citric acid and 1.5 parts by weight of sine essential oil were added and stirred. Then, the mixture was allowed to stand at room temperature for 3 days to prepare a liquid detergent for kitchen use.

<Antibacterial activity test>

In order to measure the antimicrobial activity effect of the liquid detergent for kitchen of the present invention, the test was submitted to the Korea Chemical Fusion Test Institute. Gram-negative bacteria E. coli as a test organism (Escherichia coli) and Gram-positive bacteria of Staphylococcus aureus (Staphylococcus aureus ) was used to test the antibacterial effect of the liquid detergent of Example 1.

1. Test Method

Bacteria cultured in liquid medium were diluted and adjusted to 10 ⁵ to 10 ⁶ CFU / mL of initial bacteria and used for the test. The test strain suspension was inoculated to 100 mL of the sample prepared at a concentration of 20% (w / v) to a concentration of 10 ⁵ CFU / mL or more and left at room temperature for 8 hours. The number of bacteria was measured in terms of physiological saline as a control, which was expressed as an initial number of bacteria. However, in the initial dilution stage of all experiments, neutralization was carried out using D / E Neutralizing Broth (DIFCO). When bacteria were grown in the medium, the number of bacteria on the medium was multiplied by the dilution factor, (&Lt; 10) &quot; by multiplying the dilution factor obtained in the neutralization step. The number of bacteria in all stages was measured using TSA. The viable cell count was calculated according to the following formula 1, and the bactericidal reduction rate was determined according to the following formula 2.

N = C x D (N: number of living cells, C: number of colonies, D: number of dilutions)

(R: reduction rate, A: initial number of inoculated bacteria, B: number of bacteria after 8 hours)

2. Test results

The antibacterial test results are shown in Table 1 below.

division Early After 4 hours E. coli 8.9 × 10 ⁵ CFU / mL &Lt; 10 (99.9% or more) S. aureus 9.8 × 10 ⁵ CFU / mL &Lt; 10 (99.9% or more)

As a result of the above Table 1, Escherichia coli coli ) showed more than 99.9% antibacterial effect after 8 hours. Staphylococcus aureus ) showed an antibacterial effect of 99.9% or more after 8 hours.

Through the above experiment, it was confirmed that the antibacterial activity of the liquid dish detergent of the present invention is excellent.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

Claims (4)

A solid soap manufacturing step of producing a solid soap using waste cooking oil as a starting material;
A pulverizing step of pulverizing the solid soap to prepare a powder soap;
A dissolution step of dissolving potassium hydroxide in the bamboo extract to make an alkali solution;
A first addition step of adding and stirring the fatty acid and the bamboo juice to the alkali solution;
A second addition step of adding and stirring the powdery soap to the alkali solution after the first addition step;
And adding a citric acid and a natural oil after the second addition step,
The solid soap manufacturing step comprises the steps of: a) adding a caustic soda solution and a bamboo plant solution to the waste cooking oil to form a mixture; b) heating the mixture to promote the saponification reaction; and c) Wherein the liquid detergent is a liquid detergent. delete The method according to claim 1, wherein the bamboo extract is prepared by adding bamboo leaves to a bamboo leaf at a weight ratio of 50 to 150 times, and then extracting the bamboo leaf at 70 to 90 ° C for 30 to 90 minutes. . The method of claim 1, wherein the natural oil is a sine essential oil extracted from a sine by a supercritical fluid extraction method.