JPH07118115A - Disinfecting germicide - Google Patents

Abstract

PURPOSE:To obtain a disinfecting germicide excellent in disinfecting germicidal activities against various bacteria including methicillin-resistant Staphylococcus aureus(MRSA) without any toxicity to human bodies. CONSTITUTION:This disinfecting germicide contains an aqueous solution prepared by bringing granite into contact with an aqueous solution of a mineral acid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disinfectant and bactericide against various bacteria.

[0002]

2. Description of the Related Art Glutaraldehyde, sodium hypochlorite and the like have hitherto been known as disinfectants having a high bactericidal action, but they have the drawback that they are highly toxic to the human body and cannot be used in the human body. On the other hand, disinfectants such as ethanol, benzalkonium chloride, and povidone-iodine (isozine) are known to have low toxicity to the human body, but their bactericidal action has not been satisfactory. or,
These known disinfectants are insufficiently effective against methicillin-resistant Staphylococcus aureus (MRSA), which has recently become a problem.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a disinfectant / bactericidal agent which is not toxic to the human body and has an excellent bactericidal / disinfecting power against various bacteria including MRSA.

[0004]

DISCLOSURE OF THE INVENTION The present invention relates to a disinfecting and sterilizing agent containing an aqueous solution obtained by contacting a granite with an aqueous solution of a mineral acid as an active ingredient.

In the present invention, various types of granite can be used, and particularly granular and powdery ones are preferable. Although various types of mineral acids can be used, sulfuric acid is particularly preferable.

[0006] The contact between the granite and the mineral acid can be carried out by any method, but usually, the granite is placed in a stirring tank, the aqueous solution of the mineral acid is added and stirred, and the column is packed with the granite. Examples thereof include a method of passing an aqueous solution of a mineral acid. When the liquids obtained by this contact are collected and allowed to stand, a transparent to translucent supernatant is obtained. It may be filtered if necessary. The transparent to translucent liquid obtained as described above is the active ingredient of the disinfectant / bactericide of the present invention.

In the above aqueous solution of the present invention, as components, manganese (Mn), silicon (Si), titanium (Ti), iron (F)
e), aluminum (Al), magnesium (Mg), calcium (Ca), copper (Cu), sodium (Na), potassium (K), phosphorus (P) and other mineral components are contained. These mineral components are 1 × 10 ^{-2 to} 20 in aqueous solution.
It is contained in an amount of × 10 ³ mg / l, preferably 1 × 10 ^-1 to 10 × 10 ³ mg / l.

The disinfectant / bactericide of the present invention can be produced by a very simple method, and the raw materials used are inexpensive and easily available, so that it is extremely economical.

The disinfectant / bactericide of the present invention can be used as it is as a stock solution obtained by contact, but it can also be used by diluting or concentrating it to an appropriate concentration. The disinfectant disinfectant of the present invention can be used not only for disinfection of fingers and body, but also for disinfection and sterilization of corridors, walls, floors, desks, chairs, etc., such as hospitals, hospital rooms, and examination rooms.

[0010]

The present invention will be described in more detail with reference to the following examples.

Example 1 To 5 kg of granite (average particle size: 3 mm), a 10 wt% sulfuric acid aqueous solution was added and stirred about once a day, and after 2 weeks, the upper aqueous layer was taken out and filtered to disinfect and disinfect the present invention. Got

Test Example 1 Disinfectant germicide (G-50) of Example 1 500 μl (stock solution, ×
2 x 4, x 8, x 10) 20 μl of the bacterial solution of Tables 1-6 (about 2
X 10 ⁶ (including bacteria), mix and leave at room temperature for 15
Seconds, 30 seconds, 1 minute, 3 minutes, 5 minutes, 10 minutes, 30 minutes and 60 minutes later, the viability of the strain was determined. + Indicates that one or more bacteria are alive, and-indicates that all the bacteria are dead.

[0013]

[Table 1]

[0014]

[Table 2]

[0015]

[Table 3]

[0016]

[Table 4]

[0017]

[Table 5]

[0018]

[Table 6]

Comparative Example 1 Staphyllium was prepared using benzalkonium chloride (15 mg / 100 ml).
A bactericidal test was performed on lococcus aureus clinical isolate MRSA No. 1 in the same manner as in Test Example 1, but no bactericidal effect was obtained.

[0020]

INDUSTRIAL APPLICABILITY The disinfectant and bactericide of the present invention is a very simple method and can be obtained very economically, has no toxicity to the human body, and has an excellent sterilizing and disinfecting power against various bacteria including MRSA. It is a thing.

Claims (3)

[Claims] 1. A disinfecting and sterilizing agent comprising an aqueous solution obtained by contacting granite with an aqueous solution of a mineral acid as an active ingredient. 2. The disinfectant / bactericide according to claim 1, wherein the mineral acid is sulfuric acid. 3. A mineral component of 1 × 10 ^{−2 to} 20 × 10 ³ mg / l
The disinfectant / bacterial agent according to claim 1, which is contained at a concentration of.