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Systematic extraction of leaf, petiole and rhizome parts of Petasites japonicus Max with 70 % ethanol and successive fractionation with hexane (H), ethyl acetate (E), butanol (B) and distilled water (W).

Systematic extraction of leaf, petiole and rhizome parts of Petasites japonicus Max with 70 % ethanol and successive fractionation with hexane (H), ethyl acetate (E), butanol (B) and distilled water (W).

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The aim of this study was to ascertain the effect of different solvents on extraction yield, antioxidant activity and cytotoxicity of extracts from Petasites japonicus (Siebold & Zucc.) Maxim. P. japonicus, widely distributed in Korea, Japan and China, is used as a culinary vegetable and a traditional medicine for asthma, migraines and tension head...

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Context 1
... dilutions (3.125 μg/ml to 100 μg/ml) of the filtered crude extract stock were prepared in DMSO and used in an MTT assay. The extraction flow chart is shown in Figure 1. ...
Context 2
... dilutions (3.125 μg/ml to 100 μg/ml) of the filtered crude extract stock were prepared in DMSO and used in an MTT assay. The extraction flow chart is shown in Figure 1. ...