Selective separation of biomolecules from food waste by magnetic fishing technique - A review

Presently, magnetic field promoted separation technique, known as magnetic fishing technique, is received a great attention because it provides highly purified desired product, even the concentration of desired molecule is very low in feedstock. Magnetic particles or ligands at immobilized form are mixed with crude sample and after particular incubation period, the target compound is attached to the magnetic particles selectively. Subsequently, the whole magnetic complex is rapidly and carefully removed from the sample medium using a magnetic separator. After washing the contaminants precisely, the isolated target compound is eluted by changing pH. Magnetic separation technique is very simple with few handling steps, which can take place in a simple solitary vessel or single test tube. Batch magnetic adsorption is popular for the separation of large biomolecule. In some cases magnetically stabilized fluidized beds are used for continuous separation process. As the magnetic fishing technique is so selective there is no need to do pretreatment. The present review describes different technological aspects of magnetic particle synthesis and their applications for food waste valorization.