TY - JOUR ID - 73695 TI - Effects of dried Rose Petals (Rosa damascena) on the antioxidant capacity of Green and Black Tea JO - Journal of Advances in Environmental Health Research JA - JAEHR LA - en SN - 2676-3478 AU - Aliakbarlu, Javad AU - Mohammadi, Shadieh AU - Dehestaniathar, Saeed AU - Khalili Sadaghiani, Surur AD - Department of Food Hygiene and Quality Control, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran AD - Department of Environmental Health engineering, Kurdistan University of Medical Science, Kurdistan, Iran AD - Environmental Health Research Center, Research Institute for Health Development, Kurdistan University of Medical Sciences, Sanandaj, Iran Y1 - 2018 PY - 2018 VL - 6 IS - 4 SP - 240 EP - 245 KW - Rose KW - Antioxidant activity KW - Tea DO - 10.22102/jaehr.2018.135422.1085 N2 - The health benefits of green and black tea are mainly associated with their antioxidant potential and phenolic compounds. The present study aimed to evaluate the effects of dried rose petals (Rosa damascena) on the antioxidant capacity of green and black tea. Antioxidant capacities of tea and rose infusions were assessed using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and 2, 2-azinobis-3-ethylbenzothiazoline-6-sulphonic acid (ABTS) radical scavenging. In the DPPH method, various concentrations of rose increased the radical scavenging activity of green tea, while the higher concentrations (2 g) negatively influenced the radical scavenging activity of black tea. In the ABTS assay, lower concentrations of rose (0.5 and 1 g) significantly increased the antioxidant activity of green tea. Moreover, various concentrations of rose enhanced the ABTS radical scavenging activity of black tea. According to the results, higher concentrations of rose decreased the DPPH radical scavenging activity of black tea, while the lower concentrations exerted synergistic antioxidant effects on the ABTS radical scavenging activity of green tea. UR - https://jaehr.muk.ac.ir/article_73695.html L1 - https://jaehr.muk.ac.ir/article_73695_d281da37d1b7d4abe26eab79f1f73a63.pdf ER -