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Medicinal methylparaben acts as a cosmetic preservative in preparations
.
It is a phenolic preservative and is effective against various molds, yeasts and bacteria, but the bactericidal power of paraben is low.
It is usually mixed with ethyl paraben and has good addition and synergy
.
The addition amount is 0.
1%~1.
0%
.
The preservative activity is related to the pH value of the solution.
When the pH value is 7, its activity is 2/3 of the original activity; if the pH value is 8.
5, it is reduced to half of the original activity
.
It will be bound by some macromolecular compounds such as methyl cellulose, gelatin protein, etc.
to make it lose its antiseptic activity
.
In the pharmaceutical industry, it is used as a preservative and bactericide for pharmaceuticals, and is also used in organic synthesis and as a preservative additive for food, spices, films,
etc.
Similar products produced by similar production methods, p-hydroxyl (B-paraben) and propylparaben (C-paraben), are also antiseptics
.
.
It is a phenolic preservative and is effective against various molds, yeasts and bacteria, but the bactericidal power of paraben is low.
It is usually mixed with ethyl paraben and has good addition and synergy
.
The addition amount is 0.
1%~1.
0%
.
The preservative activity is related to the pH value of the solution.
When the pH value is 7, its activity is 2/3 of the original activity; if the pH value is 8.
5, it is reduced to half of the original activity
.
It will be bound by some macromolecular compounds such as methyl cellulose, gelatin protein, etc.
to make it lose its antiseptic activity
.
In the pharmaceutical industry, it is used as a preservative and bactericide for pharmaceuticals, and is also used in organic synthesis and as a preservative additive for food, spices, films,
etc.
Similar products produced by similar production methods, p-hydroxyl (B-paraben) and propylparaben (C-paraben), are also antiseptics
.
