1 Maceration, Percolation and Infusion Techniques of Extraction of Medicinal and Aromatic Plants (MAPs) J Singh Central Institute of Medicinal and Aromatic Plants (CIMAP) Lucknow (India) E-mail: jsingh@cimap.res.in Introduction ｾ Although, the various classes of preparations involving simple expression, aqueous hot and cold extraction and evaporation were in vogue since long time but, real and scientific rapid progress in the extraction procedures for medicinal plant's preparations was made after 19 th century. ｾ Such extraction techniques and processes were highly successful in the phytochemical field leading to isolation of single pure molecules and standardized extracts for therapeutic purposes. ｾ Simple traditional to advanced technologies conforming to official procedures are being used to manufacture different types of preparations popularly known as Galenicals. Such class of preparations includes: Decoctions  Infusions  Fluid extracts tinctures  Semi solid extracts Powdered extracts.