A comparative study of the antioxidant and intestinal protective effects of extracts from different parts of Java tea (Orthosiphon stamineus).

ABSTRACT: The aim of this study was to compare the free radical scavenging ability and intestinal epithelial cell protective effects of Java tea (Orthosiphon stamineus) root extracts (ORE), stem extracts (OSE), and leaf extracts (OLE) to determine the potential of Java tea by-products. The Java tea extracts were prepared using a standard water-ethanol method. The antioxidant activity and intestinal protective effects were tested by H₂O₂-induced cell model and high-fat diet-induced mice model, respectively. The results showed that the total phenolic acid and flavonoid content and relative content were different in the ORE, OSE, and OLE. ORE had the highest total polyphenol and flavonoid content, the highest free radical scavenging rate, and the highest intracellular free

SUBMITTER: Cai X 

PROVIDER: S-EPMC5980324 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature