TY - JOUR T1 - Mixture Herbal Tea is Oxidant or not? AU - Karagoz, Isik Didem AU - Sımıtcıoglu, Basak AU - Vural, Ugur PY - 2023 DA - September DO - 10.55549/epstem.1343285 JF - The Eurasia Proceedings of Science Technology Engineering and Mathematics JO - EPSTEM PB - ISRES Publishing WT - DergiPark SN - 2602-3199 SP - 163 EP - 170 VL - 22 LA - en AB - In recent years, many people have been using various plants and herbal products for preventive or therapeutic purposes. These herbal products, especially herbal teas, have become very popular and have been widely consumed in daily life. We wanted to see whether random, uncontrolled and unmeasured use of these herbal teas, which are consumed without question because they are natural, affect their antioxidant potential. Therefore, in this study, a mixed tea prepared by mixing 10 different herbs, known to be beneficial among the public, in different proportions, sold as "winter tea" in herbalists was used. The antioxidant and oxidant activities of all the plants in this tea were tested separately and in combination, and oxidative stress indexes were calculated. The results showed that no plant included in the winter tea alone had an oxidative stress index as low as the mixture of winter tea. We can say that for the winter tea mixture we chose as the trial material; There is a strong synergistic effect between the herbs in this combination, and the oxidant effect of one was eliminated by the antioxidant effect of the other, resulting in a very safe herbal blend tea. As a result of our study, it has been shown that it is important to determine the oxidative stress state created by different herbal mixtures sold in the market before use. As a result, we cannot say that every herbal tea is harmful or beneficial, and it is not possible to say this for mixture teas. Considering our study result, we can say that winter teas prepared and consumed in this combination do not increase the oxidative stress of the body. Further studies are needed to detail its effects on the body. KW - Medicinal plants KW - Herbal tea KW - Oxidative stress KW - Antioxidant KW - Winter tea CR - Colalto, C. (2010). Herbal interactions on absorption of drugs: Mechanisms of action and clinical risk assessment. Pharmacological Research, 62, 207–227. CR - Deska, M., Romuk, E., Anna, O., Grzegorz, S., Witold, B., Dominika, T., Birkner, E., & Gawrychowski, J. (2017). Oxidative stress and angiogenesis in primary hyperparathyroidism. European Surgery, 49, 118–126. CR - Junio, H. A, Sy-Cordero, A. A., Ettefagh, K.A., Burns, J. T., Micko, K. T., Graf, T. N., Richter, S. J., Cannon, R. E., Oberlies, N. H., & Cech, N. B. (2011). Synergy-directed fractionation of botanical medicines: a case study with goldenseal (Hydrastis canadensis). Journal of Natural Products, 22;74(7), 1621-1629. CR - Kokdil, G. (2002). Tıbbi Çaylar. Galenova, 2, 19-21. CR - Leonard, S. S., Cutler, D., Ding, M., Vallyathan, V., Castranova, V., & Shi, X. L. (2002). Antioxidant properties of fruit and vegetable juices: more to the story than ascorbic acid. Annals of Clinical & Laboratory Science, 32, 193–200. CR - Oh, J., Jo, H., Cho A., R., Kim, S. J., & Han, J. (2013). Antioxidant and Antimicrobial Activities of Various Leafy Herbal Teas. Food Control, 31, 403-409. CR - Scholey, A. B., & Kennedy, D. O. (2002). Acute, dose-dependent cognitive effects of Ginkgo biloba, Panax ginseng and their combination in healthy young volunteers: differential interactions with cognitive demand. Human Psychopharmacology: Clinical and Experimental, 17, 35–44. UR - https://doi.org/10.55549/epstem.1343285 L1 - https://dergipark.org.tr/en/download/article-file/3332865 ER -