Forms of Occurrence of Crude Plant Drugs

Since crude drugs consist of various plant and animal parts and their products, they occur in a variety of morphological forms depending on the nature of their sources. These...

Drying of Crude Plant drugs

Freshly collected plant drugs contain as much as 55 to 82 percent of water. Since the drugs are not used immediately after collection, this high percentage of water encourages...

Collection of Crude Plant drugs

Crude plant drugs are obtained from the various organs of both wild and cultivated plants. The quality and quantity of the active constituents of these plants vary greatly with...

Preparation of Crude Drugs for Commercial Market

Before sending a crude drug for sale to the local or international market it should be properly prepared so that the active constituents and the appearance of the drug...

Commerce in Crude Drugs

Natural crude drugs constitute good items of commercial commodities. They are traded in the market like any other essential commodities throughout the world. In addition to numerous local markets,...

Wood in Pharmacognosy

The wood represents the central harder part of all shrubs and trees inner to the pharmacognostic bark, that is the part of a plant body which lies inner to...