JPH0225623B2 - - Google Patents

Description

[Detailed description of the invention]

[Technical Field] This invention is a technical field related to the removal of odor, which is one of the factors that pollute the living environment. [Background Art] As the living environment has been reconsidered in recent years, technologies related to the removal of odors from the living environment as one of the factors that pollute the living environment are attracting attention. To remove odors, there are sensory deodorization methods using the masking effect of aromatic substances, physical deodorization methods through ventilation and absorption and adsorption of odorous substances, and chemical reactions such as neutralization, addition, condensation, and oxidation. There are chemical deodorization methods that eliminate odor, and biological deodorization methods that kill odor-producing microorganisms and prevent the generation of odors. Sensory deodorization methods have the disadvantage that even though they can remove odors using aromatic substances, they cannot remove odorous substances, and even though they are fragrant, they may be unpleasant to individual tastes. . Physical deodorization methods have been widely used for a long time, but
Ventilation requires equipment, and absorbent adsorbents have the disadvantage that absorbed and adsorbed odorous substances are re-released as the temperature rises. [Object of the Invention] An object of the present invention is to provide a deodorant having the ability to effectively remove ammonia odor, which is one of the odors that cause discomfort to humans. [Disclosure of the Invention] The present invention relates to the use of plants in the group consisting of oxalis, hemlock, crape myrtle, nandina, chestnut, staghorn vine, mizume, Japanese pine, and staghorn, using water or a hydrophilic organic solvent alone, or a combination thereof. Extraction is performed with a solvent, and the extract or a combination of these extracts is a deodorizing agent that has a deodorizing effect, particularly against ammonia. The part of the plant used is not particularly limited, but leaves,
Bark, heartwood, and fruit are suitable. The solvent used during extraction may be a hydrophilic organic solvent such as an alcohol or a ketone, water alone, or a mixed solvent thereof, but preferably a mixed solvent of water and methanol. When used as a deodorant, it may be used in either liquid or solid form, and is not particularly limited; for example, when used as an aqueous solution, it may be used in a concentration range of 0.1 to 1%. do it. Next, an example will be given and explained. [Examples 1 to 10] Collect leaves of oxalis, hemlock, crape myrtles, nandina, chestnut, Japanese sage, Japanese pine, and staghorn. After crushing each leaf, soak in a water/methanol mixed solvent overnight at room temperature at 80°C. The extracts were extracted for 5 hours, and the extracts were concentrated to obtain powdered extracts for each plant. Each extract was prepared as a 1% solution and used as a deodorant. [Example 11] Equal parts of 1% solutions of oxalis and hemlock were mixed together to prepare a deodorant. The deodorizing agent obtained by the above procedure was evaluated for deodorizing ammonia using a sensory method and a quantitative method. In the sensory method, ten panelists evaluated the odor intensity of a sample prepared by adding a certain amount of deodorant to a dilute ammonia solution on a six-point scale. The results are shown in Table 1. The quantitative method involves adding a certain amount of deodorant to a dilute ammonia solution, immediately sealing the solution, shaking it, removing the headspace gas, dissolving the gas in water, and colorimetrically quantifying the amount of ammonia using the Nessler method. The odor residual rate was determined compared to that without the addition of deodorant, and the odor removal rate was calculated. The results are shown in Table 2. In addition, camellia, sakaki, camphor tree, tea tree,
Extracts of C. elegans were obtained in the same manner as in Example 1, and the deodorizing effects were compared. The result is the third
Shown in the table.

【table】

【table】

【table】

[Table] Note 1: The 6-step odor intensity method was used for the sensory evaluation of deodorizing efficacy. 6-level odor intensity display method

〔Effect of the invention〕

This invention is characterized by using an extracted component obtained from plants as a deodorant, and is particularly effective in removing ammonia odor.

Claims (1)

[Claims] 1. Extracted from plants in the group consisting of oxalis, hemlock, crape myrtle, nandina, chestnut, sage vine, mizume, Japanese pine, and staghorn, using water or a hydrophilic organic solvent alone, or a combination of these solvents. A deodorant featuring: