Abstract:

Using the extracts of Portulaca oleracea L. and Plantago depressa Willd. as raw materials and adding some complements such as citric acid, sucrose and honey, a kind of compound health beverage was developed. The results showed that he concentrations of Portulaca oleracea L., Plantago depressa Willd. and citric acid have great effects on the quality of the beverage, and the optimum formula is as follows: 6.67 g of dry Portulaca oleracea L., 8.33 g of dry Plantago depressa Willd., 60 g of sucrose, 1.4 g of citric acid and 12 g of honey per 1000 ml beverage. Furthermore, the chemical simulation indicated that the compound healthy beverage has effective activity on scavenging·OH, O2· and DPPH·and its IC50 of inhibiting lipid peroxidation is 96.2, 201, 4.76 and 15.34 mg/L (total flavonoids), respectively.

Key words: Portulaca oleracea L., Plantago depressa Willd., compound beverage, antioxidant effect