Silver-based inorganic
antibacterial agent "Apacider"
Antimicrobial function
MBC test method
【Evaluation method】
MBC (Minimum Bactericidal Concentration) is the minimum concentration of a drug required to kill bacteria. After contacting the bacteria with various concentrations of the antimicrobial agent, cultivate it and confirm the minimum concentration that bacterial growth is not observed.
【Evaluation criteria】
The smaller the minimum bactericidal concentration value, the higher the effect on microorganisms.
The minimum fungicidal concentration of the apasaider (unit μg / ml)
| Fungus species / grade | AW | AK |
|---|---|---|
| Staphylococcus aureus | 3.25 | 3.25 |
| E. coli | 3.25 | 1.56 |
* The numerical value of data is a representative value, and it is not a guarantee. All of the following test results are the same.
Film adhesion test method (JIS Z 2801: 2010)
SBR Rubber Sheet
When adding Apasaida AK (0.3%, 0.5%, 1.0%) to the SBR rubber sheet, the antimicrobial activity value was S. aureus 4.1 and E. coli 6.1 by adding 0.3% or more.
SBR Rubber Sheet
| Specimen | Staphylococcus aureus | E. coli | ||
|---|---|---|---|---|
| Viable count | Antibacterial activity value | Viable count | Antibacterial activity value | |
| Additive-free | 1.5 × 10 5 | - | 1.5 × 10 7 | - |
| AK 0.3% | No detection | 4.1 | No detection | 6.1 |
| AK 0.5% | No detection | 4.1 | No detection | 6.1 |
| AK 1.0% | No detection | 4.1 | No detection | 6.1 |
*The above test method is based on JIS Z 2801: 2000
PP plate
When APASIDER AW / AK (0.5% each) was added to the PP plate, AW was S. aureus 4.6, E. coli 6.1, AK was S. aureus 4.7, E. coli 6.2.
PP plate
| Specimen | Staphylococcus aureus | E. coli | ||
|---|---|---|---|---|
| Viable count | Antibacterial activity value | Viable count | Antibacterial activity value | |
| Additive-free | 3.2 × 10 4 | - | 1.0 × 10 6 | - |
| AW 0.5% | No detection | 4.6 | No detection | 6.1 |
| AK 0.5% | No detection | 4.7 | No detection | 6.2 |
ABS plate
When APSAIDER AW / AK (1.0% each) was added to the ABS plate, the antibacterial activity value was 4.3 for S. aureus and 6.1 for E. coli for both AW / AK.
ABS plate
| Specimen | Staphylococcus aureus | E. coli | ||
|---|---|---|---|---|
| Viable count | Antibacterial activity value | Viable count | Antibacterial activity value | |
| Additive-free | 1.3 × 10 4 | - | 9.8 × 10 5 | - |
| AW 1.0% | No detection | 4.3 | No detection | 6.1 |
| AK 1.0% | No detection | 4.3 | No detection | 6.1 |
PE plate
When APSIDER AW / AK (0.5% each) was added to the PE plate, AW was S. aureus 4.7, E. coli 5.7, AK was S. aureus 4.1, E. coli 6.2.
PE plate
| Specimen | Staphylococcus aureus | E. coli | ||
|---|---|---|---|---|
| Viable count | Antibacterial activity value | Viable count | Antibacterial activity value | |
| Additive-free | 1.7 × 10 4 | - | 1.0 × 10 6 | - |
| AW 0.5% | No detection | 4.7 | No detection | 5.7 |
| AK 0.5% | No detection | 4.1 | No detection | 6.2 |
PE film
When APASIDER AW (1.0%) was added to the PE film, the antibacterial activity value was S. aureus 3.2 and E. coli 4.7.
PE film
| Specimen | Staphylococcus aureus | E. coli | ||
|---|---|---|---|---|
| Viable count | Antibacterial activity value | Viable count | Antibacterial activity value | |
| Additive-free | 3.5 × 10 4 | - | 1.1 × 10 6 | - |
| AW 1.0% | 1.9 × 10 | 3.2 | 2.2 × 10 | 4.7 |
PP plate
PP plate
| Staphylococcus aureus | |
|---|---|
| No antibacterial agent | ＡＷ０．５％ |
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| No antibacterial agent | ＡＫ０．５％ |
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| E. coli | |
|---|---|
| No antibacterial agent | ＡＷ０．５％ |
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| No antibacterial agent | ＡＫ０．５％ |
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