Sinapoyl glucose free radical scavenging

Free Radical Scavenging Activity of Sinapoyl Glucose,... 

The antioxidant activities of standards of sinapoyl glucose, sinapine and sinapic acid, the major sinapic acid derivatives, were compared using the free radical scavenging activity. Under the tested concentrations (Figure 15.8), the free radical scavenging activity followed the order ... 

Thiyam et al. (2006a) were the first to compare the free radical scavenging activity of test compounds sinapic acid with sinapine and sinapoyl glucose using the DPPH... 

FIGURE 15.9 Free radical scavenging activity of sinapic acid (SA), sinapine (SP) and sinapoyl glucose (GP). 

The theoretical contribution of the phenolic constituents, such as free sinapic acid, sinapoyl glucose and sinapine, to the total radical scavenging activity of the extracts is shown in Figure 15.11. The concentration of the phenolic constituents was recorded by HPLC (330 nm). Calibration curves for the RSA were recorded using standard compounds. 

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