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DPPH, ABTS, and FRAP scavenging activity of Dendrobium sabin flower's crude extract. The DPPH, ABTS, and FRAP results are presented as mean ± SD. Post hoc (Tukey's) test shows significant difference between DSF MCE and DSF ECE and DSF WCE at p < 0.001 (∗∗∗) in both FRAP and ABTS assays. However, in DPPH assay, DSF MCE shows significant different at p < 0.001 (∗∗∗) between DSF MCE and DSF ECE; meanwhile DSF MCE and DSF WCE are significantly different at p < 0.01 (∗∗).
