Composition containing p-hydroxyacetophenone as well as preparation method and application thereof
A technology of p-hydroxyacetophenone and composition, applied in the field of preservatives, to achieve the effects of wide antibacterial spectrum, outstanding antiseptic effect, and convenient use
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[0024] The invention also provides a preparation method of the composition, which includes the following steps: firstly mixing p-hydroxyacetophenone and C3-C8 dihydric alcohol, then adding plant extracts, and obtaining the finished product after mixing.
[0025] In the present invention, the temperature when the p-hydroxyacetophenone is mixed with the C3-C8 glycol is preferably 60-80°C, more preferably 65-75°C, and even more preferably 70°C.
[0026] In the present invention, the temperature during mixing after adding the plant extract is preferably 40-50°C, more preferably 43-47°C, even more preferably 45°C.
[0027] The invention also provides the application of the composition as a cosmetic preservative.
[0028] In the present invention, the composition can inhibit Candida albicans, Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa or Aspergillus niger.
[0029] In the present invention, the pH value of the cosmetic is preferably 3.0-9.0, more preferably 5.0...
Embodiment 1
[0033] The determination of embodiment 1 p-hydroxyacetophenone addition amount
[0034] The solubility of p-hydroxyacetophenone is slightly soluble in water, easily soluble in ethanol, etc., in order to make p-hydroxyacetophenone realize the maximum solubility in the antiseptic composition, other solvents other than water are screened as p-hydroxyacetophenone Solvent, the p-hydroxyacetophenone is made into a liquid use form, which solves the problem of inconvenient operation during the use of p-hydroxyacetophenone.
[0035] Solvents often used as cosmetic solvents include dipropylene glycol, 1.3-butanediol, ethanol, 1,3-propanediol, etc. On the one hand, considering the bad smell of ethanol and its potential impact on product consistency, on the other hand, considering the price of raw materials, dipropylene glycol was initially screened as a solvent for dissolving p-hydroxyacetophenone.
[0036] Preparation method: add p-hydroxyacetophenone and dipropylene glycol in differen...
Embodiment 2
[0043] According to 30 parts of p-hydroxyacetophenone, 30 parts of 1,2-hexanediol, 38 parts of dipropylene glycol, 0.2 parts of Sophora flavescens root extract, 0.6 parts of lilac flower extract, 0.6 parts of grapefruit fruit extract, The weight part of 0.6 part of orange fruit extract weighs raw materials.
[0044] Heat and stir p-hydroxyacetophenone and dipropylene glycol at 70°C to dissolve, add 1,2-hexanediol with stirring at 40°C, and add plant extracts with stirring at 45°C to obtain The preservative of p-hydroxyacetophenone has a pH of 4.67, and the preservative containing p-hydroxyacetophenone has stable properties.
[0045] 1.5wt% of the preservative containing p-hydroxyacetophenone can be added to cream cosmetics, the pH of the cream cosmetics is 4.67, and the properties of the cream cosmetics are stable.
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