Usability of mangrove plant leaves as tea materials: A comparison study on phenolic content and antioxidant capacities with commercial teas

Tea is a beverage that known to contain polyphenols. Furthermore, the medicinal uses of mangroves have been recognized in tropical and subtropical coastal regions. Several polyphenols their leaves bark, previous studies demonstrated plant extracts are effective against many diseases. Moreover, use as tea materials has some However, scientific information on polyphenol content antioxidant activities limited. Trolox equivalent capacity (TEAC) based 2,2-diphenyl-2-picrylhydrazyl radical scavenging assay total (TPC) methanolic hot water from six mangrove species were examined, results compared those green, oolong, black, mate teas. Remarkably high TPC TEAC found three belonging Rhizophoraceae. The highest values among almost same or higher than reference materials, with few exceptions. significant correlation was observed between respective extracts, properties seemed originate mainly polyphenolic compounds. Regarding extractive efficiency, it could be extracted by using water. Based this study, we concluded Rhizophoraceae used an important source water-soluble natural antioxidants. • study provided new level major species. Remarkable activity 3 sample polyphenol-enriched teas exemptions. mostly extractable