Table 1 also shows the relationship between DPPH redical-scavenging activity, peroxyl redical-scavenging activity, total phenolics and doubling-time concentration. The data on DPPH and peroxyl redical-scavenging activity were obtained from our previous work. On average, an inverse relationship among the parameter could be observed, indicating that the higher the antioxidant activities or total phenolics, the lower the doubling-time concentration. Therefore, Chrysanthemi Flos,Crataegi Fructus ,and H. sabdariffa,which have high antioxidant activities and total phenolics, exhibited the strongest inhibitory effects on LDL oxidation. On the contrary, Poria , which demonstrated the lowest antioxidant activity and totalphenolic, exhibited the weakest inhibitory effect.