Research Article

Evaluation of Marker Compounds and Biological Activity of In Vitro Regenerated and Commercial Rehmannia glutinosa (Gaertn.) DC. Roots Subjected to Steam Processing

Figure 7

Inhibitory effects of all R. glutinosa samples extracts on NO production in LPS-induced RAW 264.7 cells at concentration of 200 μg/ml. , unprocessed R. glutinosa; PCR, processed commercial R. glutinosa; PKR, processed in vitro regenerated R. glutinosa. Values are presented as means ± standard deviation. Same letters are not significantly different by Tukey’s test and .