The Antioxidant Activities of the Some Commercial Teas

Phytochemical analysis and antioxidant properties of mixtures containing Platycodonis Radix, Codonopsidis Radix, Paeoniae Radix, and Lonicerae Flos

“…2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity Plant extracts are often assessed for antioxidant activity using the DPPH technique [15]. Using the methodology outlined in a prior study [16], the antioxidant activity of the extracts from the four raw materials and mixtures was evaluated in this experiment. Initially, 10 μL from each experimental group was mixed with 200 μL of 0.2 mM DPPH dissolved in 95% ethanol in an E.P.…”

Cellulose composites containing active constituents of coffee and tea: a prospective novel wound dressing

“…152 Black tea, green tea, brown rice green tea, Malva tea, and herbal tea showed relatively high antioxidant activity in scavenging the ABTS cation radical and DPPH free radical. 153…”

Developed validation for simultaneous determination of three Di-caffeoylquinic acid derivatives from the Leaf of Eribotrya japonica Lindl. by HPLC-DAD

“…Especially, polyphenols such as chlorogenic acid contained in E. japonica leaves have a variety of physiological activities (Lee et al, 2004;Kim et al, 2009d). Recently, studies on antioxidant substances in order to eliminate ROS and RNS that increase or eliminate antioxidants of in vitro and in vivo have been conducted, and various bioactivity research such as anti-oxidant effects of natural products have been widely reported (Choi et al, 2003;Kim et al, 2008).…”