KR20000037208A - Method of making amino acid liquid fertilizer - Google Patents

Abstract

PURPOSE: A method for preparing a liquid fertilizer of amino acids is provided which prevents soil acidification, environmental pollution, and lowering of crop productivity. CONSTITUTION: A method comprises the steps of mixing keratin with water in the ratio of 5:1; mixing the keratin solution with NaOH, Ca(OH)2 or KOH in the ratio of 1:0.15 at the temperature of 65-75°C and stirring the mixture for 3 hours to hydrolyze it; adding HNO3, H2SO4, H3PO4 or organic acids to the mixture to adjust the pH to be 7-8; stirring the mixture at the temperature of 50-55°C; mixing the keratin solution with papain and protease in the ratio of 1:0.02 and stirring the mixed solution to decompose the remained keratin; cooling the solution to the room temperature; mixing the solution with urea, H3PO4, K, Fe, Mn, Cu and Zn, and stirring the solution to prepare the liquid fertilizer.

Description

Method of making amino acid liquid fertilizer

The present invention relates to a method for producing amino acid liquid fertilizer, and more particularly, to a method for preparing amino acid liquid fertilizer to prepare a liquid fertilizer of amino acid organic by mixing a fertilizer raw material with an aqueous solution of amino acid according to decomposition of keratin (Keratin) protein.

In general, the agricultural field causes acidification and environmental pollution of the soil due to the use of chemical fertilizers and pesticides. Also, there are many problems such as lower productivity due to the weakening of crops against pests, and distrust of consumers due to the use of chemical fertilizers and pesticides. It has been emerging.

Therefore, the use of organic fertilizers in consideration of environmental pollution prevention and environmental pollution has been gradually increasing as an alternative fertilizer to solve this problem, these organic fertilizers were the main ingredient of vegetable amino acids as a growth regulator of plants. .

Recently, organic fertilizers fermented by mixing sawdust and food waste in servings and livestock meals have been disclosed, but it is an urgent problem to develop various organic fertilizers at a low cost in order to increase the use of organic fertilizers.

This is attributable to the serious crisis of environmental pollution caused by the overuse of chemical fertilizers and pesticides, and the unbelief of food crops.

Therefore, the trend of the times when organic fertilizers using animal proteins are in the spotlight is expected.

The keratin protein called keratin, which is a light protein of animal protein, such as hair, nails, and skin, is used in cosmetics, adsorbents, nutritional supplements, and seasonings, but it is insoluble in water and neutral solvents. Since it does not receive the action of proteolytic enzymes such as pepsin, trypsin, etc., it is difficult to completely dissolve and a small amount is accompanied by a problem in that the cost increases during manufacturing.

The present invention is to cope with the currents described above, and after decomposing the keratin, which is an animal light protein, into an aqueous amino acid liquid, and then by mixing the fertilizer raw materials to the agricultural crops and environmental pollution prevention in consideration of environmental pollution (液肥: liquid fertilizer) is characterized by providing an amino acid liquor manufacturing method to be prepared.

Amino acid liquid fertilizer production method of the present invention for achieving the above object, Alkali hydrolysis of the keratin protein, such as animal hair protein hair wool, pig hair (Alkali) hydrolysis (S1); Neutralization step (S2) using a neutralizing agent; Enzymatic digestion step (S3) using an enzyme; Urea (N), phosphoric acid (P), carry (K) and the trace elements Fe, Mn, Cu, Zn by mixing a fertilizer mixing process (S4) made of a complex amino acid liquid ratio.

1 is a manufacturing process of the amino acid liquid fertilizer of the present invention.

Explanation of symbols on the main parts of the drawings

S1: alkali decomposition process

S2: neutralization process

S3: enzyme digestion process

S4: Fertilizer Mixing Process

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the amino acid liquor production method according to the present invention will be described in detail.

1 is a manufacturing process of the amino acid liquid ratio of the present invention.

As shown in the drawing, the amino acid liquor production process of the present invention utilizes keratin proteins, such as wool and pig hair, which are animal light proteins.

Degrading the light protein with proteolytic enzymes can yield keratin, the major amino acids of which are glutamic acid, arginine, cystine, etc. In particular, the amino acids contained in the feathers vary in addition to the main amino acids. Aspartic acid, Arginine, Arginine, Alanine, Cystine, Glutamic acid, Glycine, Histidine, Isoleucine, Leucine ), Lysine (Lysine), Methionine (Methyonine), Florin (Proline), Phenylalanine, Serine, Seronine, Threonine, Tyrosine (Tyrosine), Valine.

Among these, cystine and methionine are resilient to plant cells weakened due to lack of sunshine and snowy plants, cold resistance and disease resistance, and improved sugar and vegetable sweetness.

In each step of the manufacturing process according to the present invention, the keratin protein raw materials such as feather, pig hair and the like are mixed with water, heated and caustic soda (NAOH), calcined lime (CA (OH) at a temperature condition of 65 ~ 75 ℃ ₂ ), caustic or potassium hydroxide (KOH) is added to the alkali decomposition step (S1) is carried out by stirring for 3 hours to hydrolyze.

The mixing ratio of feather, pig hair and water, which is the keratin protein raw material, is raw material: water = 1: 5, heating is for sterilization and homogenization, and the alkaline decomposition step (S1) is the primary decomposition step to destroy the keratin tissue.

The mixing ratio of the keratin protein raw material and the alkali agent is raw material: alkaline agent = 1: 0.15, and the hydrogen ion concentration of the alkali decomposition step (S1) is 11 pH or more.

Subsequently, after passing through an alkali decomposition process (S1), the hydrogen ion concentration is adjusted to 7 to 8 pH and neutralized with nitric acid (HNO ₃ ), sulfuric acid (H ₂ SO ₄ ), phosphoric acid (H ₃ PO ₄ ) or organic acid. After the addition, the neutralization step (S2) of stirring at a temperature of 50 to 55 ° C. with good activity is performed by heating to maintain the neutrality of the enzyme in the subsequent step.

Subsequently, after the neutralization step (S2), which is a previous step, papain and protease are added as enzymes while maintaining a temperature of 50 to 55 ° C. The ratio of enzyme = 1: 0.02, and the remaining microfibrous keratin after the first alkaline decomposition was completely decomposed by stirring with proteolytic enzyme to perform the second enzymatic digestion step (S3).

Subsequently, after passing through the enzymatic digestion step (S3), the mixture is cooled to room temperature, and urea (N), phosphoric acid (P), carry (K) and trace elements Fe, Mn, Cu, and Zn are mixed and stirred to dissolve. Therefore, it is completed and manufactured as a complex amino acid liquid ratio through a series of step-by-step processes for carrying out the fertilizer mixing step (S4).

As described above, the method for preparing the amino acid fertilizer of the present invention reduces the burden on the farmhouse by lowering the cost of the preparation due to the complete decomposition of the keratin protein, thereby encouraging the use of organic fertilizers, thereby making chemical fertilizers and pesticides There is an excellent effect to prevent soil acidification and environmental pollution according to use, and to improve productivity and confidence of real users due to enhanced resistance of crops to pests.

Claims (1)

After mixing keratin protein raw materials such as wool and pig hair at 1: 5 with water, heating and heating the keratin protein raw materials, caustic soda (NAOH), calcined lime (CA (OH) ₂ ), caustic carry at a temperature of 65-75 ° C. Or an alkali decomposition step (S1) in which an alkali agent of potassium hydroxide (KOH) is added at a ratio of 1: 0.15 and stirred for 3 hours to hydrolyze; Hydrogen ion concentration in all alkali decomposition process (S1) was adjusted from 11pH to 7-8pH and heated by adding nitric acid (HNO ₃ ), sulfuric acid (H ₂ SO ₄ ), phosphoric acid (H ₃ PO ₄ ) or organic acid neutralizer A neutralization step (S2) for stirring at a temperature of 50 to 55 ° C; While maintaining the heating temperature of 50-55 ° C in the previous step, the keratin protein raw material, the enzyme of papain and protease were added at a mixing ratio of 1: 0.02, and residual microfibrous keratin after primary alkali decomposition was added. Enzymatic digestion step (S3), followed by secondary hydrolysis by stirring with proteolytic enzymes; After the whole process, the mixture is cooled to room temperature to prepare a fertilizer mixing process (S4) in which urea (N), phosphoric acid (P), carry (K) and trace elements Fe, Mn, Cu, and Zn are mixed, stirred and dissolved. Amino acid liquor manufacturing method characterized in that.