What is Soxhlet extraction used for?
Soxhlet extraction has been used widely for extracting valuable bioactive compounds from various natural sources. In this extraction, a small amount of dry sample is placed in a thimble, which is placed in a distillation flask containing the solvent of particular interest.
What are the advantages of Soxhlet extraction?
The advantage of Soxhlet extraction is that it can be extracted multiple times. Compared with the general soaking method, it has the advantages of small solvent dosage, high efficiency and complete extraction.
How do you use Soxhlet apparatus for extraction?
1) on an isomantle. The crushed plant material is loaded into the thimble, which is placed inside the Soxhlet extractor. The side arm is lagged with glass wool. The solvent is heated using the isomantle and will begin to evaporate, moving through the apparatus to the condenser.
Why is hexane used in Soxhlet extraction?
For the extraction process, the results showed that the oils were found to be highly unsaturated (US = 4.44–5.25). The soxhlet n-hexane extract showed an US more important for the spiny form (5.22), the soxhlet n-hexane extract allowed a better extraction of unsaturated fatty acids for the wild form.
What are disadvantages of Soxhlet extraction?
Soxhlet extraction is an accepted technique for extracting fat from meat samples. Though it is simple and robust, there are drawbacks to Soxhlet extraction, such as long drying and extraction times, lack of automation, and the amount of solvent used per sample.
Which solvent is used in Soxhlet extraction?
Soxhlet extraction is performed with different solvent mixtures such as hexane/dichloromethane, dichloromethane/light petroleum, cyclohexane/acetone or hexane/acetone, or even methanol, depending on the nature of the sample and the pesticides covered in the analytical method.
Which method is best for extraction of petroleum?
Oil is classified as light, medium, heavy or extra heavy. Light and medium oil can flow naturally to the earth’s surface and is generally extracted from the ground using vertical drilling and pumping – this includes Canada’s offshore oil. Some light oil is trapped in “tight” (non-porous) rock formations, usually shale.
