Sykuła Anna, Janiak-Włodarczyk Izabela, Kapusta Ireneusz Tomasz
Faculty of Biotechnology and Food Sciences, Institute of Natural Products and Cosmetics, Lodz University of Technology, Stefanowskiego 2/22, 90-537 Lodz, Poland.
Department of Food Technology and Human Nutrition, College of Natural Sciences, University of Rzeszow, Zelwerowicza 4, 35-601 Rzeszow, Poland.
Molecules. 2025 Jan 6;30(1):197. doi: 10.3390/molecules30010197.
The addition of an extract to an emulsion is intended to improve its fragrance and care qualities. Green tea is a beverage known all over the world. It is tasty and has beneficial effects on human health due to its high polyphenol content. The compounds present in this variety of tea have also made it an interesting cosmetic ingredient. The polyphenols contained in green tea have antioxidant properties and can delay the ageing process in human skin. Various preparations with this ingredient can be found on the market-from creams to hair care products. Making one's own cosmetics is also a trend. In the following study, three creams containing green tea extracts from three different manufacturers were prepared, and the total polyphenol (TP) contents, the phenolic profile of the extracts used and the antioxidant activity of these preparations were examined using two methods: DPPH and ABTS cationic radicals. The study showed that the antioxidant activity of the glycerin-water extracts measured by the selected methods was higher than that of the oil extract. Among the creams, the product with green tea extract from Firm 2 (glycerin-water extract) showed the best antioxidant properties.
在乳液中添加提取物旨在改善其香气和护理品质。绿茶是一种享誉全球的饮品。它味道鲜美，因其高含量的多酚而对人体健康有益。这种茶中所含的化合物也使其成为一种有趣的化妆品成分。绿茶中含有的多酚具有抗氧化特性，能够延缓人类皮肤的衰老过程。市场上可以找到各种含有这种成分的制剂——从面霜到护发产品。自制化妆品也是一种潮流。在以下研究中，制备了三种含有来自三个不同制造商的绿茶提取物的面霜，并使用两种方法：DPPH和ABTS阳离子自由基，检测了这些制剂的总多酚（TP）含量、所用提取物的酚类概况以及抗氧化活性。研究表明，通过所选方法测定的甘油 - 水提取物的抗氧化活性高于油提取物。在这些面霜中，来自公司2的含有绿茶提取物的产品（甘油 - 水提取物）表现出最佳的抗氧化性能。
