An insight into recent updates on analytical techniques for bioactive alkaloids.

Area of Science:

• Natural Products Chemistry
• Analytical Chemistry
• Pharmacognosy

Background:

• Alkaloids are diverse nitrogen-containing natural products with significant biological activities, widely used in medicine.
• Their complex natural occurrence necessitates advanced analytical techniques for accurate identification and characterization.
• Understanding alkaloid profiles is vital for drug discovery and therapeutic applications.

Purpose of the Study:

• To provide a comprehensive review of analytical methods and protocols for naturally occurring alkaloids.
• To consolidate information on diverse techniques used in alkaloid analysis.
• To guide researchers in selecting appropriate methods for alkaloid isolation and characterization.

Main Methods:

• Literature survey conducted across PubMed, Scopus, and Google Scholar databases.
• Keywords included "alkaloids," "analytical methods," "HPLC," "GC," "electrochemical methods," and "bioanalytical methods."
• Focus on established and emerging analytical protocols for alkaloid research.

Main Results:

• Presentation of various alkaloid classes and their associated biological activities.
• Detailed explanation of chromatographic techniques (e.g., HPLC, GC) and hyphenated methods.
• Discussion of electrochemical techniques and current trending analytical approaches for alkaloid analysis.

Conclusions:

• Analytical techniques are essential for identifying and characterizing alkaloids from various sources, including plant matrices and biological samples.
• Hyphenation of chromatography with mass spectrometry (MS) and nuclear magnetic resonance (NMR) spectroscopy is critical for characterizing unknown alkaloid compounds.
• Advanced analytical strategies enhance the understanding of alkaloid chemistry and pharmacology.