Authors : S. A. Kamble
Page Nos : 101-104
Description :
are considered. It is the process for the separation of natural products from various parts of the plans. The extraction process depends on the constituent occurring in the plant. Thus, for qualitative and quantitative estimation of natural products (phytochemicals) present in the plant material, the extraction and isolation is the first and essential step. There are different methods of extraction. Among them Maceration is efficient method.It is widely accepted and low cost method to obtain natural products from the plants. It is proper for thermo-labile constituents of the plants. In this process, the powdered material is taken into stoppage container and mixed with suitable solvent. It is kept at room temperature for proper time with intermittent shaking till the constituents dissolve in the solvent. Simple Maceration, Multiple Maceration and Vacuum Maceration are the three types of maceration processes. Simple maceration involves mixing of material with specific solvent and shaking/stirring at room temperature.In multiple maceration process, the menstrum is repeatedly extracted for maximum extraction of the constituents or natural products. The vacuum maceration process involves application of vacuum for effective separation. The maceration is easy, energy saving and non-complicated process. It does not require presence of skilled person. This method is suitable for inexpensive and low potent drugs. It is slow, time consuming process and needs more amount of solvent.It is ornamental tree, the flowers bloom with great profusion, and at that time the tree can be seen from great distances. The flowers are tulip-shaped up to 10 cm (4 in) long. They are wide, commonly red-orange or flame-coloured though a yellow flowering variety. They bloom on and off throughout the year with peaks in the dry and winter season in seasonally dry areas and in large clusters of up to twelve. Mostly above the crown, they create a striking visual display. The plant has many medicinal uses. Taking into consideration, researchers performed extraction of natural products from flowers of Spathodeacampanulata
