JPS6321061A - Deodorant - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a deodorizer suitable for use by spraying directly onto a source of malodor.

[Conventional technology]

Offensive odors are a typical sensory pollution along with noise, and countermeasures against them have become a major social problem for food, chemical, feed, fertilizer, and other manufacturing industries as well as the livestock industry. In addition, it is impossible to improve the living environment, such as measures to remove bad odors generated from sewage, garbage, human waste, and sludge treatment plants, toilet tanks, and kitchen garbage in general households. Furthermore, in recent years, people have become more sensitive to body odor such as bad breath. Up until now, methods for deodorizing these bad odors include washing with water, combustion, and adsorption using activated carbon, silica gel, and clathrate compounds such as cyclodextrin.
and neutralizing agents such as acids and alkalis, and oxidizing agents such as peroxides, permanganates, and chlorates.

Deodorizing treatments have been carried out by chemical treatment methods using masking agents such as air fresheners and aromatic components extracted from plants.

In addition, in some cases, as natural deodorants that have a bad odor or a slight fragrance, extracts from Myrtaceae plants as shown in JP-A-60-119953 and persimmon plant extracts as shown in JP-A No. 80-119954 are also used. Family plant extracts are known.

[Problem that the invention seeks to solve]

The water 6 method and the combustion method have disadvantages in terms of cost and the need for post-treatment unless the equipment is large.
The adsorption method has a limited adsorption capacity, and when it reaches a saturated state, −
The problem is that the odor that has been absorbed by the dust is emitted again. In addition, the mainstream of chemical treatment methods still uses so-called chemically synthesized agents, and neutralization methods using acids or alkalis have problems of corrosion and river pollution due to cleaning drainage, and oxidation methods that use dangerous oxidizing agents The drawback of the law is that it requires sufficient safety for storage and handling.

Particularly in recent years, as social interest in safety has increased, there has been a demand for simple and safe deodorizers that can be sprayed directly onto toilet tanks, sewage, kitchen waste, livestock sheds, etc. It has become necessary to develop new agents.

Furthermore, masking agents have the disadvantage that there are individual differences in the sense that some people have an aversion to the scent of the agent, and that many of the agents are relatively expensive.

In view of the above, the present inventor focused on the natural odor purifying ability of plants, and as a result of intensive research, discovered that ginkgo leaf extract has an excellent deodorizing effect. invention has been achieved.

That is, the purpose of the present invention is to provide a deodorant that is safer than chemical deodorants;
The purpose of the present invention is to provide an inexpensive natural deodorant that has a wide range of applicability to malodorous substances.

[Means for solving problems]

An object of the present invention is to provide a deodorant characterized by containing an extract of ginkgo biloba leaves as an active ingredient.

The ginkgo leaves used in the present invention may be fresh leaves or dry leaves, but green leaves before yellowing are preferable.

Furthermore, cultured tissues obtained by tissue culturing ginkgo biloba can also be used.

The extract refers to a solution obtained by extracting ginkgo leaves with water and/or a hydrophilic organic solvent, or a solution obtained by concentrating it as necessary.

Hydrophilic organic solvents used for extraction include methanol,
Examples include lower alcohols such as ethanol, n-propanol and isopropanol, and ketones such as acetone, methyl ethyl ketone and methyl isobutyl ketone.

The ginkgo biloba extract obtained in this way has almost no odor and acts rapidly against a wide range of malodorous substances such as ammonia, amines such as methylamine and triethylamine, and mercaptans such as methyl mer-butane. , exhibits excellent deodorizing effect.

In other words, the deodorizing effect on basic malodorous substances such as ammonia and amines is due to the rapid neutralization reaction with 6-alkenylsalicylic acid, which is present in the extract, and this compound also has bactericidal and bactericidal effects. Because it has an insecticidal effect, it has the mutual effect of preventing bad odors caused by bacterial growth and the occurrence of pests. Furthermore, it contains multiple tannins and flavone glycosides that have a deodorizing effect on mercaptans, so it exhibits a wide range of deodorizing effects.

Furthermore, the deodorant of the present invention does not contain pirobol, which is contained in the outer seed coat (pulp) of ginkgo nut and has a strong effect of inducing allergic dermatitis, so it can be used with confidence.

For use as a deodorant, the solution obtained by extraction may be used in its entirety, or if necessary, a concentrated solution may be used.

The form of use as a deodorant is not particularly limited, and may include liquid preparations, aerosol/spray preparations, foam/spray preparations, solid preparations impregnated with various porous bodies or clathrate compounds, single powder tablets, and fruit granules. It can be used in various ways, such as as an agent.

〔Effect of the invention〕

The present invention is a natural deodorant made from ginkgo leaves, a plant, extracted with water and/or a hydrophilic organic solvent,
It is a highly safe deodorant that is suitable for use by spraying directly on the source of the odor, and since this deodorant itself is almost odorless, it does not cause disgust based on the odor. It has a deodorizing effect, has a wide range of applications against foul-smelling substances, is non-corrosive, and has sterilizing and insecticidal effects, so it can be sprayed directly onto kitchen waste, sewage tanks, etc., making it an excellent overall product. It is possible to obtain a deodorizing effect.

Furthermore, the present invention uses inexpensive water or/and a hydrophilic organic solvent as an extraction catalyst for Cr! It is inexpensive because the active ingredient is obtained only by extraction from the raw material fig leaves.

(Example) Next, the present invention will be explained based on examples.

Production Example 1 5 kg of fresh ginkgo leaves were heated and refluxed in 30% ethanol for 4 hours, the leaves were separated and the resulting ethanol solution was concentrated, then ethanol was added again and 2! A liquid deodorizer was prepared.

Production Example 2 50 kg of dried ginkgo leaves were mixed with 34 ol of methanol.
The leaves were heated under reflux for a period of time, and the methanol solution obtained by separating the leaves was concentrated to dryness to obtain 8 kg of solid material. This material was crushed to obtain a solid deodorant.

Example 1. Comparative Example 1 1201) pm! , :Q 50 ml of the solid deodorant obtained in Production Example 2 was placed in an Erlenmeyer flask with a content of ff 1200 m containing 1 ml of the prepared methanol solution of medylmerkabutane I
was added, immediately stoppered, and shaken for 1 minute.
Five panelists based on the six levels of odor intensity shown in 1.
It was evaluated using a sensory test. The results are shown in Table-2.

Comparative Example 1 is the result of no deodorant added.

Example 2. Comparative Example 2 0.5 ml of the liquid deodorant obtained in Production Example 1 was added to an Erlenmeyer flask with a content of 1,200 m/ml containing 1 m/m of a methanol solution of triethylamine adjusted to 1,000 ppm.
The odor was evaluated in the same manner as in Example 1 after immediately capping and shaking for 1 minute. The results are shown in Table-2.

Comparative Example 2 is the result of no deodorant added.

Table-1 Table-2

Claims (4)

[Claims] (1) A deodorant characterized by containing ginkgo leaf extract as an active ingredient (2) The deodorant according to claim 1, wherein the extract is obtained by extracting ginkgo leaves with water and/or a hydrophilic organic solvent. (3) The deodorant according to claims 1 and 2, wherein the hydrophilic organic solvent is a lower alcohol. (4) The deodorant according to claims 1 and 2, wherein the hydrophilic organic solvent is a ketone.