Agarose

Agarose gel is the neutral polysaccharides agar medium commonly used in gel separation or size exclusion chromatography. It originated from kelp seaweed. Residues of D-galactose and 3,6-anhydro-L galactose are alternating with each other to form linear polysaccharides of agarose gel. Agarose gel is carcinogenic and must be specially removed from the laboratory.