What is the difference between maceration and percolation?
What is the difference between maceration and percolation?
Definition. Maceration refers to the process of becoming softened by soaking in a liquid while percolation refers to the process of a liquid slowly passing through a filter.
What principle is the process of extraction based?
2.4 Liquid–liquid extraction. Liquid–liquid extraction (LLE) is based on the principle that a solute or an analyte can distribute itself in a certain ratio between two immiscible solvents, usually water (aqueous phase) and organic solvent (organic phase).
What is maceration in extraction?
(i) Maceration. This is an extraction procedure in which coarsely powdered drug material, either leaves or stem bark or root bark, is placed inside a container; the menstruum is poured on top until completely covered the drug material. The container is then closed and kept for at least three days.
Why Methanol is used in extraction?
70% MeOH is the suitable solvent for extraction of all primary and secondary metabolites as it has good penetration to the cell content, so it is the most common used solvent unless you want to extract specific compounds.
Why 70 ethanol is used in plant extraction?
The ethanol solvent polarity was influenced by the high concentration of water contained in ethanol. This allowed non-phenolic polar compounds such as carbohydrates and proteins to be dissolved during the extraction process which resulted in increased extraction yields (Do et al., 2014).
What are the extraction procedures used in phytochemical analysis?
The extraction procedures are vital important in analysis of phytochemicals. There are some traditional extraction methods and novel extraction methods. Maceration, percolation and soxhlet extraction methods are prominently used in phytochemical screening studies. But there are some advanced methods such as supercritical fluid extraction (SFE),
What are the different extraction methods for aromatic plants?
For aromatic plants, hydro water and steam distillation), hydrolytic maceration followed by distillation, expression and effleurage (cold fat extraction) may be employed. Some of the latest extraction methods for aromatic plants include headspace trapping, solid phase micro extraction, protoplast extraction, micro distillation.
What are the basic extraction procedures for crude drugs?
The sole purpose of such basic extraction procedures for crude drugs are to obtained the therapeutically desirable portion and eliminate the inert material by treatment with a selective solvent known as the Menstruum. Such types of extraction procedures also play a decisive role for the qualitative and quantitative composition of the extracts.
What is serial exhaustive extraction?
Serial exhaustive extraction: It is another common method of extraction which involves successive extraction with solvents of increasing polarity from a non-polar (hexane) to a more polar solvent (methanol) to ensure that
