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  Indian J Med Microbiol
 

Figure 1: High-performance liquid chromatography chromatogram of piperine in Piper nigrum extracts, (a) piperine standard (b) piperine in Piper nigrum

Figure 1: High-performance liquid chromatography chromatogram of piperine in <i>Piper nigrum</i> extracts, (a) piperine standard (b) piperine in <i>Piper nigrum</i>