| Autor: |
Rendevski, S., Naim Mahmudi, Blazev, K., Popeski-Dimovski, R., Ajredini, F. |
| Rok vydání: |
2012 |
| Předmět: |
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| Zdroj: |
Naim Mahmudi |
| Popis: |
Sunscreen lotions rich in vitamin E provide benefit in preventing and treating sunburns. The sun protection capacity of vitamin E`s lotion formulations decrease with time of light exposure. The zeolite microparticles with previously absorbed vitamin E and added after to sun protection oil lotion could be used as reservoir for replacing UV photodegraded vitamin E. In the research, the vitamin E absorption capacities of zeolite microparticles of concentration of 0.2 % w/v in plant oil mixture (Olea Europea Oil, Sunflower oil) have been studied by UV-Vis spectrophotometry. The sedimentation and laser diffraction measurements gave broad distribution on size of the zeolite microparticles (1 µm to 15 µm) without interparticle interactions in the solution. The results showed ten-fold decrease in UV absorbance at wavelength of 292 nm in the first 30 minutes of vitamin E absorption to zeolite microparticles and a flat of release in the sunscreen lotion. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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