The key difference between maceration and percolation is that the maceration is the process of soaking or steeping something to make it soft. Various Methods of Extraction • Maceration • Percolation • Infusion • Decoction • Digestion; 9. Purposes of Extraction • The sole purpose of. Read 1 answer by scientists to the question asked by Mustafa Saddam on Dec 4,

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Percolation is a process of seeping water through the soil or filtering a liquid through a porous substance.

Chemical constituents of the drug: Volume of menstruum required for first maceration. Describe the percolation process in details with a schematic diagram of a typical percolator. Samanthi holds a B. When the liquid passes through the filter, it prevents the microbes entering to the filtrate. Dry extract – obtained by completely removing the solvent under reduced pressure. Difference between infusion and decoction?

In such cases Soxhlet extractor is used where small volume of hot menstruum is passed over the drug time and again to dissolve out the active constituents until the drug is exhausted. After maceration, straining and pressing of the marc, measured volume volume of liquid is obtained.

On the other hand, percolation involves filtration through a porous material. As the constituents dissolve, the density of the solution increases, so that convection currents are established, leading to circulation of the solution followed by the reduction of local concentration surrounding the cloth. Maceration is helpful in dehydration of foods, in the flavouring of ingredients as well as making wine.


The transport of molecules will take place in two stages:. Coffee-pot or tea-pot is the simplest form of apparatus used for preparing infusion. Hence the inflammability of a solvent is very important from the point of view of industry.

If the area A is increased then rate of dissolution also increases.

The pot is filled with maceratiob and the perforated shelf is adjusted below the surface of water. Overview and Key Difference 2. Extra menstruum is not added to make up the required volume.

Maceration and percolation have different applications. Extracts are concentrated preparations containing the active principles of vegetable or animal drugs. Mostly alcohol incorporates in the maceration of different foods since it helps to soften of foods. Then, when the vacuum is released, pressure of the atmosphere forces the solvent into the drug and penetration is facilated considerably.

How triple percolation is conducted?

Infusion, Decoction, Expression, Maceration, Percolation

This will increase the penetration power of the menstruum, so that there is complete extraction of the drug. The whole of the drug is placed in the body of ppercolation digestor; placed the cover over it and bolted it with the help of nuts.

Among them, their use in preparation tinctures is very popular. Leave a Reply Cancel reply. Percolation is also used in the purification macefation water. The percolator is allowed to stand for 24 hours to macerate the drug. The damp crude drugs damp leaves are called marc. The tinctures made by simple maceration process are.

Cochineal from insect Coccus cacti. Introduction to Pharmaceutics – A. It is some kind of a sterilization technique. Concentrated compound infusion of chirata and. Simple maceration – a process for tinctures made from organized drugs e.


Gentian Cascara, Belladonna Ipecacuanha. Consider a crystal of soluble material e. The selection of an extraction process mainly depends on the physical nature of the drug. Sometimes special pots known as infusion pots are used for the preparation of infusions. In this discussion we are concerned primarily with basic extraction procedures for crude perrcolation to obtain the therapeutically desirable portion and eliminate the macwration crude material by treatment with a selective solvent, known as the menstruum.

Infusion, Decoction, Expression, Maceration, Percolation

Name of the drug. Short note on Soxhlet extractor with diagram. The period of maceration is reduced from 7 to 2 days in some cases, because the unorganized drugs behave like simple chemicals that dissolve in the solvent very easily and quickly.

Soxhlation process of extraction is used to. During this period the drug swells up as the menstruum penetrates the cell walls. Polluted water spread on the surface of the soil and allow draining through the soil basins. Source of drugs active ingredients may be plant or animal.

Since, the drug absorbs solvent and there is a residue of soluble constituents in that solvent, so the drug is subjected to pressure and sometimes under hydraulic pressure.

Similarities Between Maceration and Percolation 5. Comparison between extraction method: