Substituting non-natural agents in UV-protection cream by a mixture of clay with Ganoderma pfeifferi extract |
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| Authors: | Thao Hoang-Minh Thi Lai Le Jörn Kasbohm Reto Gieré |
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| Affiliation: | 1. School of Food and Biological Engineering, Zhengzhou University of Light Industry, Zhengzhou 450001, China;2. Collaborative Innovation Center of Food Production and Safety, Zhengzhou 450001, Henan Province, China\n;1. Department of Inorganic Chemistry and Chemical Engineering, E.P.S. of Belmez, University of Córdoba, E14240, Spain;2. Department of Inorganic Chemistry and Chemical Engineering, Faculty of Sciences, University of Córdoba, E14071, Spain;1. Centro de Energia Nuclear na Agricultura, CENA-USP, Universidade de São Paulo, NUPEGEL/USP, Av. Centenário, 303, 13416-903, Piracicaba, São Paulo, Brazil;2. Instituto de Energia e Ambiente, IEE-USP, Escola Superior de Agricultura Luiz de Queiroz, ESALQ-USP, Universidade de São Paulo, NUPEGEL/USP, Av. Professor Luciano Gualberto, 1289, 05508-010, São Paulo, Brazil;3. Instituto de Geociências, IGc-USP and IEE-USP, Universidade de São Paulo, NUPEGEL/USP, Av. Professor Luciano Gualberto, 1289, 05508-010, São Paulo, Brazil;4. Escola Politécnica da USP, EP-USP, Universidade de São Paulo, Departamento de Engenharia Metalúrgica e de Materiais, NUPEGEL/USP, Av. Prof. Mello Moraes, 2463, 05508-900, São Paulo, Brazil |
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| Abstract: | To investigate the potential of substituting non-natural agents in sunscreen, mixtures of some clays with Ganoderma pfeifferi extract were examined in regard to their protection abilities against ultraviolet (UV) radiation in the wavelength range 250–400 nm. Some mixtures showed remarkably high UV-protection potential in comparison with corresponding clay cream devoid of the fungal extract. Depending on interlayer charge of the dominant clay mineral contained in the clays, the interaction between the fungal extract and the clay mineral played a key role in the UV-protection ability of the mixtures. The optimal clay in the mixture with the G. pfeifferi extract for sunscreens was dominated by expandable clay minerals with low interlayer charge. |
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