Browsing by Author "Tacuri Lucero, Mayra Johanna"

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    Evaluación del potencial de los aceites esenciales de albahaca (Ocimum basilicum), caléndula (Calendula officinalis) y manzanilla (Matricaria chamomilla) y sus mezclas como fotoprotectores
    (2019-03-11) Tacuri Lucero, Mayra Johanna; Cazar Ramírez, María Elena
    The increase of the incidence of radiation solar in the biosphere due to the weakening of the ozone layer in decades recent generates the need of protect the skin against the negative effects of the radiation UV:, erythema, hiperpigmentación, photo greening and skin cancer. In this project is evaluated the ability of absorption ultraviolet of essential oils obtained of the parts of the leaves of basil (Ocimum basilicum), flowers of calendula (Calendula officinalis) and flowers of chamomile (Matricaria chamomilla). The factor of protection is determined according to the method of Mansur. After that, I did mixtures of the oils in study, with the purpose of evaluate possible effects synergy in the factor of protection solar. The factors of protection solar in the pure essential oils is determined in this manner: 3.14 for O. basilicum, 2.55 for M. chamomilla and 5.02 for C. officinalis. The mixtures 50:50 O. basilicum: M. chamomilla, M. chamomilla: C. officinalis, y O. basilicum: M. chamomilla present values of protection solar of 4.02, 4.4 y 5.7, respectively. The ternary mixture 33% O. basilicum: M. chamomilla: C. officinalis generates FPS of 7.2. The methodology of this study can be applied to select substances of natural origin in the development of new formulas of sunscreens with the bioactive principles