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Fig. 2 | BMC Complementary and Alternative Medicine

Fig. 2

From: Optimization protocol for the extraction of 6-gingerol and 6-shogaol from Zingiber officinale var. rubrum Theilade and improving antioxidant and anticancer activity using response surface methodology

Fig. 2

(a) UHPLC full chromatogram of 6-gingerol standard solution (0.5 mg/ml) at tr = 11.509 min and 6-shogaol standard solution (0.4 mg/ml) at tr = 19.940 min, (b) UHPLC full chromatogram of ethanol extract of Z.officinale Roscoe var. rubrum dried rhizome powder showing peak corresponding to 6-gingerol and 6-shogaol standard solution. Extraction condition: at 80 °C for 4 h

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