Chromatography Research International / 2012 / Article / Fig 6

Review Article

Biological Fingerprinting of Herbal Samples by Means of Liquid Chromatography

Figure 6

Comparison of (a) chemical and (b) biological profiles (AchE inhibitory activity) obtained for selected Lamiaceae plant samples. In case of chemical detection the plate was sprayed with 20% methanolic solution of sulfuric acid; in case of biological profile, the plate was derivatized according to diazotization method [30]. Symbols’ meaning: 1: Thymus vulgaris essential oil, 2: Rosmarinus officinalis essential oil, 3: Mentha piperita essential oil, 4: Lavandula officinalis essential oil, 5: Salvia officinalis (ethanolic tincture), and 6: Melissa officinalis essential oil [34].

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