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Botanical Studies
Fig. 2 | Botanical Studies

Fig. 2

From: Extract of white sweet potato tuber against TNF-α-induced insulin resistance by activating the PI3K/Akt pathway in C2C12 myotubes

Fig. 2

Total phenolic content, DPPH radical-scavenging activity and relationship between antioxidant activity and total phenolic content in WSP. A Total phenolics of sweet potato extracts. B Percentage scavenging activity of sweet potato extracts. C Correlation between % scavenging activity and total phenolic contents. GAE gallic acid equivalent, WSP-E white sweet potato ethanol extract, WSP-EA white sweet potato ethyl-acetate fraction, WSP-EW white sweet potato water fraction. Values were presented as mean ± SD of 3 independent experiments performed in triplicate, and were analyzed using one-way ANOVA, followed by a post hoc Tukey’s test for multiple comparisons. Different letters above the error bars indicate significant differences among treatments (P < 0.05)

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