A REVIEW ON MODERN EXTRACTION TECHNIQUES OF HERBAL PLANTSAbstract
Plants are naturally gifted for the synthesis of medicinal compounds & extraction is the first crucial step in the preparation of plant formulations. The extraction and characterization of active compounds from medicinal plants have resulted in the discovery of new drugs with high therapeutic value. The new recent extraction techniques with shortened extraction time, reduced solvent consumption, and increased pollution prevention concern and with special care for thermolabile constituents. In this article, the principle behind the operation of various extraction methods, factors influencing method performance, research progress, strength and weakness of different extraction approaches are discussed. The modern techniques for extraction of herbal plant secondary metabolites include Solid-phase micro-extraction, Supercritical-fluid extraction, Pressurized liquid extraction, Accelerated Solvent extraction, High-pressure solvent extraction, Membrane Extraction, The Cold finger method Stir-bar sportive extraction, Ultrasonic extraction, Acid-base extractions, Solid-phase extraction, Microwave-assisted extraction (MAE), Supercritical fluid extraction (SCFE), Pressurized solvent extraction (PSE).
S. Agrahari *, V. Kesharwani and N. Kushwaha
ARK College of Pharmacy, Rakasarai Sarai Akil Kaushambi, Uttar Pradesh, India.
31 March 2021
22 May 2021
26 May 2021
31 May 2021