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  Indian J Med Microbiol
 

Figure 1: Antioxidant activities of Alpinia galanga extract (AG), Curcuma amada extract (CA), and Curcuma caesia extract (CC). (A) Heat map showing multiple endpoints of antioxidant activities of AG, CA, and CC; (B) Principal component analysis showing correlation among different parameters of antioxidant activities. TPC: total phenolic content, FRAP: ferric reducing antioxidant power assay, DPPH: 2,2-diphenyl-1-picrylhydrazyl assay, ABTS: 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) assay, LPO: protection against lipid peroxidation assay, HRS: hydroxyl radical scavenging assay.

Figure 1: Antioxidant activities of <i>Alpinia galanga</i> extract (AG), <i>Curcuma amada</i> extract (CA), and <i>Curcuma caesia</i> extract (CC). (A) Heat map showing multiple endpoints of antioxidant activities of AG, CA, and CC; (B) Principal component analysis showing correlation among different parameters of antioxidant activities. TPC: total phenolic content, FRAP: ferric reducing antioxidant power assay, DPPH: 2,2-diphenyl-1-picrylhydrazyl assay, ABTS: 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) assay, LPO: protection against lipid peroxidation assay, HRS: hydroxyl radical scavenging assay.