Screening for Antiviral Activities of Isolated Compounds from Essential Oils
Figure 3
Antiviral activity of star anise essential oil and different compounds of essential oils against HSV in time of addition assays. (a) Pretreatment of cells with drugs, (b) pretreatment of virus with drugs and (c) addition of drugs during intracellular replication of HSV. Number of virus plaques was determined 3 days after infection and compared to untreated control. Results are presented as percentage of plaque reduction and are the mean of three independent experiments ± SD and statistically significant results are marked with asterisk.
