The Milestone’s patented* Microwave Integrated Soxhlet technology offers the possibility to perform the crude fat extraction from a variety of food and feed samples in a fraction of the time required by conventional techniques.
*European Patent Application EP 2 371 437 A1 and US Patent Application US 2011/0233203 A1.
» Easy to use
» Safe, works at atmospheric pressure
» Comparable results with traditional Soxhlet devices
» Reduced solvent volume
» Small footprint
» Full results traceability and documentation
» Low running cost
The NEOS Microwave Soxhlet is suitable for the gravimetric determination of crude fat
on a variety of feed and food samples, such as cereals, plants, seeds, wheat ˜ our and many others.
HOW IT WORKS
- Samples are weighed in disposable sealed bags.
- Typical sample weight is 1 to 3 grams.
- Up to 11 bags are placed in a rack, housed in a glass vessel provided with a siphon.
- This vessel is located in an outer glass vessel.
- The assembly is introduced in the Milestone NEOS microwave oven,
equipped with non-contact temperature control and magnetic stirring.
- Finally, a condenser is attached to the outer vessel.
- Solvent is placed in the outer vessel (1) and, with the aid
of a microwave-susceptive material, is heated to its boiling temperature.
- Typical solvent volume is 500 mL.
- Vapors are re˜ uxed by the condenser into the inner vessel, where the extraction takes place (2).
- When the solvent volume in the inner vessel reaches the level of the siphon,
all solvent moves to the outer vessel with the crude fat fraction in it (3).
- The cycle starts over again (4), leading to a continuous re uxing of fresh solvent through the sample bags and in turn to a complete extraction of the crude fat.
- At the end of the microwave run, lasting 30 to 45 minutes, sample bags are dried, weighed, and the total fat is measured gravimetrically.