A Review on DNA Finger Printing Techniques in Identification of Drugs of Natural Origin

DNA fingerprinting techniques have become essential tools in the identification, authentication, and quality control of drugs of natural origin, especially herbal medicines. These techniques allow precise genetic identification by analyzing specific regions of the DNA unique to each species, ensuring the correct sourcing of plant or animal materials used in drug formulations. The major DNA-based methods include Random Amplified Polymorphic DNA (RAPD), Simple Sequence Repeats (SSR), Amplified Fragment Length Polymorphism (AFLP), and DNA barcoding. These techniques help differentiate between closely related species, detect adulterants, and confirm the authenticity of natural products, minimizing the risk of contamination or substitution. DNA fingerprinting ensures the traceability of raw materials, promotes the standardization of natural drugs, and supports regulatory frameworks for ensuring the safety, efficacy, and consistency of herbal medicines. Its application enhances the quality assurance process, making DNA-based methods indispensable for maintaining the integrity of the natural drug supply chain.