JPH09108529A - Dehumidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dehumidifier applying a new use feeling not containing an existing dehumidifier to a user in order to gradually discharge aroma and capable of confirming a hygroscopic state and a replacing period according to the intensity of aroma. SOLUTION: A dehumidifier contains a perfume precursor decomposed by enzymatic action to become perfume and enzyme decomposing the perfume precursor substance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidifying agent, and more particularly to a dehumidifying agent capable of confirming a hygroscopic state by releasing a scent.

[0002]

2. Description of the Related Art In recent years, due to changes in the housing structure, the degree of airtightness inside the room has increased, and various problems due to the formation of mold have become a problem. As a countermeasure against these problems, many products filled with dehumidifying agents such as silica gel and calcium chloride in containers and bags have been distributed for dehumidifying and drying such as closets, cupboards, geta boxes, tea dances, and shelves. It's coming. In addition, products intended to prevent stuffiness and bad odor caused by sweat are commercially available.

Such a dehumidifying agent is usually contained in a plastic container in a hermetically sealed manner so that moisture can be stored in the container through a moisture permeable membrane, or a breathable sheet that does not pass water is used. It is used in a sealed bag.

[0004]

DISCLOSURE OF THE INVENTION Such a dehumidifying agent is
The moisture absorption condition is visually recognized by the amount of absorbed moisture and the condition of the dehumidifying agent such as jelly-like or rice cake-like condition, and there is a problem that it is difficult to know a clear handling time.

An object of the present invention is to provide a dehumidifying agent capable of easily confirming a hygroscopic state and a replacement time by a fragrance.

[0006]

Means for Solving the Problems As a result of intensive studies to solve such problems, the present inventors have solved the above problems by blending a fragrance precursor substance and an enzyme that decomposes the fragrance precursor substance. Based on this finding, the inventors arrived at the present invention.

[0007] That is, the gist of the present invention is a dehumidifying agent characterized by comprising a perfume precursor substance which is decomposed by the action of an enzyme into a perfume and an enzyme which decomposes the perfume precursor substance. Is.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The dehumidifying agent of the present invention is a deodorizing agent such as alkali metal, alkaline earth metal, phosphoric acid, hygroscopic surfactant, and aliphatic polyhydric alcohol that has been conventionally used as a dehumidifying agent. It is a mixture with an enzyme that decomposes.

The perfume precursor substance used in the present invention is not particularly limited as long as it is decomposed by a hydrolase to produce a perfume component, and known glycosides, glycerides and peptide derivatives of perfume. , Amino acid derivatives and the like can be used. These fragrance precursor substances can be synthesized by organic synthesis, enzymatic synthesis, or a combination thereof. In the present invention, these fragrance precursor substances may be blended in one kind, or may be mixed and blended.

As the above-mentioned fragrance, alcoholic fragrance,
Phenol-based fragrances, carboxylic acid-based fragrances, amine-based fragrances and the like can be mentioned. Examples of alcohol-based fragrances include green leaf alcohol, 3-octenol, 9-decenol, linalool,
Geraniol, nerol, citronellol, rosinol, dimethyloctanol, hydroxycitronellol, tetrahydrolinalool, lavanjuol, mugol, misenol, terpineol, 1-menthol (L-menthol), borneol, isobregor,
Tetrahydromugol, bornylmethoxycyclohexanol, nobor, farnesol, nerolidol, santalol, sandalol, cedrol, vetiverol, patchouli alcohol, benzyl alcohol, β-phenylethyl alcohol, γ-phenylpropyl alcohol, cinnamic alcohol, anise Alcohol, α
-Amylcinnamic alcohol, dimethylbenzylcarbinol, methylphenylcarbinol, dimethylphenylcarbinol, β-phenylethyldimethylcarbinol, β-phenylethylmethylethylcarbinol, phenoxyethyl alcohol, phenyl glycol, tertiary butylcyclo Hexanol and the like can be mentioned.

The phenolic fragrances include eugenol, vanillin, hinokitiol, the carboxylic acid fragrances include benzoic acid, cinnamic acid, phenylacetic acid, hydrocinnamic acid, and the amine fragrances include indole and skatole. , 2-methyltetrahydroquinoline, 6-methylquinoline and the like. Examples of glycosides used in the present invention include alcohol-based and phenol-based flavors, and known monosaccharides, oligosaccharides, glycosides composed of polysaccharides, and examples of monosaccharides include glucose, galactose, and mannose. , Glucosamine, galactosamine, hexoses such as mannosamine, arabinose, xylose, pentoses such as ribose, and the like,
Examples of oligosaccharides include sucrose, lactose, trehalose, maltose, cellobiose, isomaltose, gentiobiose, laminaribiose, chitobiose, mannobiose, sophorose, mantotriose, starches, hydrolysates of cellulose and the like, and the like. Examples of saccharides include starch and cellulose. Among these, glucose, galactose, mannose, glucosamine, maltose, and lactose are particularly preferable. As the glyceride, for example, monoglyceride of glycerin and carboxylic acid-based flavor,
Diglyceride, triglyceride and the like, and as the amino acid or peptide derivative, alcohol-based,
Examples thereof include amino acid or peptide derivatives of carboxylic acid-based and amine-based flavors.

The enzyme used in the present invention is
The enzyme acting on the glycoside is not particularly limited as long as it is an enzyme capable of hydrolyzing a fragrance precursor substance.
Examples include α-glucosidase, β-glucosidase, α-amylase, β-amylase, α-galactosidase, β-galactosidase, α-mannosidase, β-mannosidase, α-glucosaminidase, β-glucosaminidase, β-fructofuranosidase and the like. In addition, as the enzyme acting on glyceride, lipase,
Esterase etc. are mentioned. Furthermore, as an enzyme acting on an amino acid or a peptide derivative, peptidase,
Examples include proteases such as papain, pepsin, and trypsin.

The amount of the perfume precursor substance used at this time varies depending on the type of perfume used, but is 0.01 to 20% by weight, more preferably 0.05 to 10% by weight based on the dehumidifying agent.
%, And more preferably 0.1 to 5% by weight. The amount of the enzyme to be used is not particularly limited as long as it can decompose the perfume precursor substance by the enzymatic reaction, but is 0.01 to 20% by weight, more preferably 0, relative to the dehumidifying agent. 1 to 10% by weight may be used.

As a method for blending the fragrance precursor substance and the enzyme, since the fragrance precursor substance and the enzyme are both in a powder state, they may be added and mixed in the dehumidifying agent as they are.

The dehumidifying agent of the present invention may be used by hermetically sealing it in, for example, a plastic molded container or a bag made of a breathable sheet.

[0016]

According to the present invention, the moisture absorbed by the dehumidifying agent causes the perfume precursor substance and the enzyme to react with each other, and the perfume precursor substance is decomposed to release the scent gradually. be able to. Further, since the amount of absorbed water is proportional to the amount of released fragrance, it is possible to confirm the replacement time by eliminating the fragrance by adjusting the blending amounts of the fragrance precursor substance and the enzyme.

[0017]

The present invention will be specifically described below with reference to examples.

Reference Example 1 (Synthesis of phenethyl galactoside) 4.0 g of phenethyl alcohol (special grade reagent manufactured by Wako Pharmaceutical Co., Ltd.)
And lactose (20 g) in 4 mM potassium phosphate buffer (pH
7.0) It was dissolved in 500 ml. Add 10,000 U of Sumilacto GLL (produced by Shin Nippon Kagaku Co., Ltd.),
After reacting at 40 ° C for 20 hours, the reaction was stopped by treating at 100 ° C for 5 minutes. Unreacted raw materials in the obtained reaction product were extracted and removed with chloroform, and then the aqueous layer fraction was separated by 5
0 ml of DIAION HP
The solution was passed through a -20 (manufactured by Mitsubishi Chemical Corporation) column to adsorb phenethylgalactoside. After washing this column with 1 liter of distilled water, phenethylgalactoside was eluted with 500 ml of methanol. The obtained phenethyl galactoside fraction was concentrated under reduced pressure, and the residue was treated with ethanol-
Pulverization in a hexane system gave 1.51 g of phenethylgalactoside.

Reference Example 2 (Synthesis of geraniol glucoside) 300 ml of dry ether, 125 g of molecular sieve 4A (special grade reagent manufactured by Wako Pure Chemical Industries, Ltd.), 3 silver carbonates
0.8 g was added, and 100 ml of dry ether containing 40 g of acetobromoglucose was added dropwise while cooling this with ice water. Furthermore, 10.0 g of geraniol
30 ml of dry ether containing was added dropwise and reacted at room temperature (25 ° C.) for 8 hours. After completion of the reaction, ethyl acetate was added to this solution and filtered through Celite. The filtrate was washed with aqueous sodium hydrogen carbonate to dehydrate the oil layer, and then concentrated under reduced pressure. The obtained concentrated solution was passed through a silica gel (silica gel for organic chromatography manufactured by Wako Pure Chemical Industries, Ltd.) column to purify the tetraacetyl derivative of geraniol. To 300 ml of the obtained geraniol tetraacetyl-containing methanol was added 3 g of sodium hydroxide for deacetylation at room temperature (25 ° C), and the solution was passed through a silica gel (Wako Pure Chemical Industries, Ltd. silica gel for organic chromatography) column. And chloroform:
Methanol was eluted with a mixed solution of 9: 1 by volume. The eluted fraction was analyzed by thin layer chromatography, and the fraction containing geraniol glucoside was concentrated under reduced pressure to obtain 12.5 g of geraniol glucoside.

Example 1, Comparative Example 1 To 500 g of calcium chloride, 5 g of phenethyl galactoside synthesized in Reference Example 1 and 3 g of Sumilacto GLL (manufactured by Shin Nippon Kagaku Co.) were added. The dehumidifying agent thus prepared was placed in a 1 liter beaker and the relative humidity (RH) 40,
After left in 50, 60, 70, 80, and 90% of the space for 5 months, whether or not the scent of phenethyl alcohol was gradually released was subjected to a sensory evaluation based on the following criteria (Example 1). Further, a dehumidifying agent was prepared by adding 2.5 g of phenethyl alcohol in place of 5 g of phenethyl galactoside, and it was similarly examined whether or not the scent of phenethyl alcohol was gradually released (Comparative Example 1). Table 1 shows the results.

Sensory evaluation method A dehumidifying agent was used at room temperature of about 25 ° C. and relative humidity (RH) of 40, 50.
The sample was left in 60, 70, 80 and 90% space (about 1 m ³ ) and its aroma titer was evaluated by 6 panelists according to the following criteria. The values in the table are shown as the average value of the evaluation by 6 people.

[Evaluation Criteria] 5 Strong 4 Slightly Strong 3 Neither 2 Slightly Weak 1 Weak 0 Odorless

[0023]

[Table 1]

As is clear from Table 1, when the dehumidifying agent of the present invention is used, the scent can be maintained for a long time, and the scent is released in proportion to the amount of absorbed moisture. The moisture absorption status and the replacement time could be confirmed. On the other hand, the dehumidifying agent added in the form of a fragrance without adding it in the form of the fragrance precursor substance does not have the fragrance's sustainability, and the release of the fragrance is hardly affected by the amount of absorbed moisture, so Could not be confirmed.

Example 2, Comparative Example 2 To 500 g of calcium chloride, 5 g of geraniol glucoside synthesized in Reference Example 2 and 3 g of transglucosidase "Amano" (manufactured by Amano Pharmaceutical Co., Ltd.) were added. The dehumidifying agent thus prepared was placed in a 1 liter beaker and left in a space having relative humidity (RH) of 40, 50, 60, 70, 80 and 90% for 5 months to gradually release the fragrance of geraniol. Whether or not it was examined in the same manner as in Example 1 (Example 2). Further, a dehumidifying agent was prepared by adding 2.5 g of geraniol in place of 5 g of geraniol glucoside, and it was similarly examined whether or not the fragrance of geraniol was gradually released (Comparative Example 2). Table 2 shows the results.

[0026]

[Table 2]

As is clear from Table 2, when the dehumidifying agent of the present invention is used, the scent can be maintained for a long time, and the scent is released in proportion to the amount of absorbed moisture. The moisture absorption status and the replacement time could be confirmed. On the other hand, the dehumidifying agent added in the form of a fragrance without adding it in the form of the fragrance precursor substance does not have the fragrance's sustainability, and the release of the fragrance is hardly affected by the amount of absorbed moisture, so Could not be confirmed.

Example 3, Comparative Example 3 To 500 g of silica gel, 5 g of phenethyl galactoside synthesized in Reference Example 1 and 3 g of Sumilacto GLL (manufactured by Shin Nippon Chemical Co., Ltd.) were added. The dehumidifying agent thus prepared was placed in a 1 liter beaker and the relative humidity (RH) 40, 5
It was allowed to stand in 0, 60, 70, 80 and 90% space for 5 months, and it was examined in the same manner as in Example 1 whether or not the scent of phenethyl alcohol was gradually released (Example 3). Also,
A dehumidifying agent was prepared by adding 2.5 g of phenethyl alcohol instead of 5 g of phenethyl galactoside, and it was examined whether or not the scent of phenethyl alcohol was gradually released in the same manner (Comparative Example 3). Table 3 shows the results.

[0029]

[Table 3]

As is clear from Table 3, when the dehumidifying agent of the present invention is used, the scent can be maintained for a long period of time, and the scent is released in proportion to the amount of absorbed moisture. The moisture absorption status and the replacement time could be confirmed. On the other hand, the dehumidifying agent added in the form of a fragrance without adding it in the form of the fragrance precursor substance does not have the fragrance's sustainability, and the release of the fragrance is hardly affected by the amount of absorbed moisture, so Could not be confirmed.

[0031]

EFFECTS OF THE INVENTION Since the dehumidifying agent of the present invention gradually releases the scent, it gives the user a new feeling of use that existing dehumidifying agents do not have, and the scent can be maintained for a long time. Further, it is possible to confirm the moisture absorption state and the replacement time by the strength of the scent.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Munehiko Munehiko 23 Uji Kozakura, Uji-shi, Kyoto Unitika Research Institute Central Research Institute (72) Inventor Hiroshi Nakajima 23 Uji Kozakura, Uji-shi Kyoto Prefecture Unitika Co., Ltd. Central In the laboratory

Claims (1)

[Claims] 1. A dehumidifying agent comprising a fragrance precursor substance which is decomposed by the action of an enzyme to form a fragrance, and an enzyme which decomposes the fragrance precursor substance.