DNA that separates out after the addition of chilled ethanol can be removed by

Spooling of DNA refers to a technique for isolating DNA from a sample, typically using a glass rod or pipette to wrap the DNA around and collect it.

Removal of DNA bands from gel matrix is called elution.

After completion of the biosynthetic stage, the product has to be subjected through a series of processes before it is ready for marketing as a finished product. The processes include separation and purification, which are collectively referred to as downstream processing.