Importance of Chromatography in Pharmacognosy

Points on importance of chromatography in pharmacognosy are:

• Chromatography in pharmacognosy is important because it separates plant constituents and enables accurate identification of bioactive compounds.
• Chromatography separates the complex mixture of alkaloids, glycosides, flavonoids, and terpenoids present in medicinal plant extracts.
• When a crude extract is introduced into a chromatographic system, each phytochemical migrates at a different rate depending on its polarity and interaction with the stationary phase.
• This differential migration produces well-resolved bands or peaks that represent individual phytoconstituents for detailed chemical analysis.
• Chromatography enables accurate identification of bioactive compounds present in medicinal plant extracts.
• Separated components produce characteristic chromatographic patterns, retention factors, and peak profiles that act as chemical signatures.
• These signatures are compared with reference standards to confirm the exact identity of therapeutically active phytochemicals.