JPH10110002A - Composition for producing chitosan solution - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the time and effort required for the production of a chitosan solution, to produce a chitosan solution simply and quickly in a required amount, when necessary on site, and to eliminate the fear of deterioration due to oxidation. It can be so. SOLUTION: Fine powder of chitosan of more than 60 mesh,
Mix with organic powder of more than 60 mesh.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a composition for producing a chitosan solution, and more particularly to a composition for producing a chitosan solution, which is constructed so that a chitosan solution can be produced simply and quickly in a required amount when required. It is about.

[0002]

2. Description of the Related Art Chitosan is a chemical treatment (deacetylation) of chitin contained in crabs and shrimp shells with an acid.
Is a water-insoluble and soluble in organic acids. Conventionally, when a user manufactures this chitosan solution, first weigh the chitosan powder, add a small amount of the weighed water to this predetermined amount of powder, stir, and add a predetermined amount of an organic acid as a solvent to the stirring liquid. In addition, a method of mixing was common.

[0003]

A solution of this kind of chitosan can be used, for example, for foliar application, soil irrigation, or seed flooding during agricultural production, as a remedy for cuts and burns, and for stains and fine wrinkles. It is used as a lotion for bathing, a bath additive, a growth promoter for potted plants, an aquarium fish aquarium additive, and the like.

[0004] However, as described above, chitosan is a water-insoluble substance that is difficult to be dissolved by simply adding water. On the other hand, chitosan is characterized by being easily oxidized and deteriorated once it becomes a solution. Therefore, it is desirable that this kind of solution can be produced simply and quickly in the amount to be used on site such as spraying.

However, conventionally, when producing a chitosan solution, it was necessary to repeat the weighing operation and the stirring operation as described above, and in some cases, a step of filtering insoluble components with a filter was necessary. Cannot be simply and rapidly produced on site. In addition, from such circumstances, conventionally, it has been observed that the chitosan solution is pre-bottled and prepared, but in this case, since it is easily oxidized, the chitosan solution must usually be used within about one month. There was a problem that a large storage space was required.

The present invention has been made in view of such conventional circumstances,
It is a proposal. Therefore, the technical problem of the present invention is:
A composition for producing a chitosan solution configured to reduce the time and effort required for the production of a chitosan solution, to be able to produce a chitosan solution simply and quickly in a necessary amount, when necessary on site, and to eliminate the fear of deterioration due to oxidation. Is to provide.

[0007]

The present invention employs the following technical means to solve the above-mentioned problems. That is, the present invention is characterized in that a fine powder of chitosan having more than 60 mesh and a fine powder of organic acid having more than 60 mesh are mixed.

[0008] The term "greater than 60 mesh" means that the size of the particles of chitosan or organic acid passing through the sieve of the 60 mesh is maximized, and is selected to be smaller than that.
Means that Also, with a sieve of 60 mesh,
It means a sieve whose number of meshes per inch is set to 60.

For both chitosan and organic acids, the smaller the particle size is over 60 mesh, the higher the solubility and the more preferable. If the sieve mesh is less than 60 mesh, the chitosan particles are large, and the dissolution time is undesirably long. However, in the present invention, it is not necessary that the sizes of the particles are uniform.

[0010] Chitosan can be obtained through a reaction called deacetylation by treating chitin with 40 to 45% sodium hydroxide heated to 80 to 120 ° C. The fine powder of the organic acid is usually obtained by evaporating water from the organic acid solution.

According to the present invention, a fine powder of chitosan and an organic acid selected to have a size of more than 60 mesh by sieving is prepared by weight ratio of chitosan to 1 and organic acid to 0.8 to 0.8.
It is mixed at a ratio of 3.0. The mixing ratio of the organic acid is
When the ratio is less than 0.8, chitosan is easily precipitated, and a completely dissolved chitosan solution cannot be produced in a short time.

When the mixing ratio is larger than 3.0,
Although the dissolution time of chitosan is shortened, the acidity of the chitosan solution becomes strong, and thus, for spraying agricultural products, for example, there are adverse effects such as leaf wilting, which is not preferable. Therefore, in the case of the present invention, the mixing ratio of chitosan and organic acid is preferably selected within the above range so that chitosan can be completely dissolved in a short time and the effect of chitosan can be exhibited.

In the present invention, the above organic acids include
Vitamin C (ascorbic acid) is preferred for reasons of being water-soluble, having good affinity for water, being odorless, and the like, but is not limited thereto, provided that it can be in the form of fine powder. Other organic acids may be used. Examples of other organic acids include acetic acid, malic acid, citric acid, citric anhydride, tartaric acid and the like.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the present invention, as shown in FIG. 1, for example, a raw material powder of chitosan and an organic acid is sieved with a 60-mesh sieve, and fine chitosan and organic acid fine powder of more than 60 mesh are mixed with each other. Things.

In the case of the present invention, the mixing ratio of chitosan and organic acid is within a range in which chitosan can exhibit a plant growth promoting function, a bactericidal function, an insect repellent function, and the like, and does not adversely affect the organic acid as an acid. Usually, it is preferable that the organic acid is selected in the range of 0.8 to 3.0 with respect to the weight ratio of chitosan to 1 and organic acid.

Next, a process for producing a chitosan solution using the composition of the present invention will be described. First, as shown in FIG. 2, for example, a wide-mouth plastic bottle 1 is prepared as a mixing container, a funnel-shaped paper 2 is inserted into the mouth, and the composition of the present invention is placed in the bottle 1 using, for example, a measuring spoon. Put in. In the present invention, it is preferable to repeatedly use the same plastic bottle 1 so as to prevent the bottle 1 from becoming garbage.

Next, tap water is vigorously poured into the bottle 1 from the faucet, about one quarter to one half thereof. After that, the stopper 3 is closed, and then it is vigorously shaken up and down 4-5 times. And more water,
Add to the position about 4 cm below the mouth, tighten the stopper 3 and leave it for about 30 minutes.

Thereafter, the bottle 1 is placed horizontally. When the water is clear and transparent, the chitosan solution is ready. Although this chitosan solution can be used as it is as a remedy for burns and the like, when it is used as a foliar spray or a bath agent, it is diluted with water before use.

[0019]

Next, specific examples of the composition of the present invention will be described. The chitosan powder raw material purified to a degree of deacetylation of 80% or more was sieved through an 80-mesh sieve to prepare a chitosan powder of more than 80 mesh. Vitamin C as an organic acid
, And the powdered raw material was similarly sieved through an 80-mesh sieve to prepare an organic acid powder exceeding 80 mesh.

The above-mentioned chitosan powder and vitamin C powder were mixed at a weight ratio of chitosan to 1 and vitamin C to 1.5 using a stirrer. 1.7 g (about 1 teaspoonful) of the obtained composition of the present invention is placed in a 2 liter PET bottle 1, and tap water is added about 1/3 of the bottle 1 and shaken up, down, left and right. , Further inject tap water to a position 4 cm below the mouth,
Left for 10 minutes. After that, place the bottle 1 horizontally, and
After 0 minutes, a transparent solution was obtained.

This solution was put into a tank and diluted with water to prepare a spray liquid in which the composition of the present invention was diluted 6000 times. The sprayed liquid was periodically sprayed onto cucumber seedlings at intervals of 10 days. The cucumber seedlings did not show any scab, gray mold, powdery mildew, etc. at all.

The above-mentioned chitosan solution is diluted with water, and the radish seeds are immersed in a diluent obtained by diluting the composition of the present invention 1000 times overnight, and then naturally dried, and the radish seeds are sowed. No chlorosis or soft rot occurred. The radish seeds germinated several days earlier than other radish seeds sown without such treatment.

[0023]

As described above, the present invention is a powder in which ultrafine particles of chitosan and an organic acid are mixed with each other. Therefore, according to this, it is easy for the organic acid to promote the dissolution of chitosan.
In addition, a chitosan solution can be produced without fear of oxidation.

When the ratio of chitosan to organic acid is 0.8 to 3.0 in weight ratio as described in claim 2, the effectiveness of chitosan is maintained without losing the effectiveness of chitosan. A chitosan solution in a preferable state can be easily produced in a short time without being adversely affected.

Furthermore, when the organic acid is vitamin C, the organic acid has good affinity for water, so that an odorless chitosan solution can be simply and quickly produced on site by simply adding water.

[Brief description of the drawings]

FIG. 1 is a process chart showing the production process of the composition of the present invention.

FIG. 2 is a process chart showing a process for producing a chitosan solution using the composition of the present invention.

[Explanation of symbols]

 1 plastic bottle 2 paper 3 stopper

────────────────────────────────────────────────── ─── Continued on the front page (51) Int.Cl. ⁶ Identification code FI A61K 31/73 ADA A61K 31/73 ADA

Claims (3)

[Claims] 1. A fine powder of chitosan having a particle size of more than 60 mesh,
A composition for producing a chitosan solution, which is mixed with a fine powder of an organic acid having a mesh size of more than 60 mesh. 2. The composition for producing a chitosan solution according to claim 1, wherein the ratio by weight of chitosan to organic acid is 0.8 to 3.0 relative to 1. 3. The composition for producing a chitosan solution according to claim 1, wherein the organic acid comprises vitamin C.