- Volume 31 Issue 1
The present study was conducted to investigate the preparative methods of agarose for gel electrophoresis from agar. Naturally occuring agar consists of two main polysaccharides, the neutral polysaccharide agarose and the acid sulphated polysaccharide agaropectin. The sulphate and carboxyl functions of the agar are accumulated in the agaropectin. The hydrophilic, non-ionogenic, rigid and transparent gel matrix of the agarose was found to be suitable for gel electrophoresis gel filtration and affinity chromatography. Agar was purified by chitosan treatment, cetylpyridinium chloride (CPC) treatment, and polyethylene glycol (PEG) treatment. Yields of agarose purified from agar with chitosan, CPC and PEG were 56.7%, 55.6% and 62.3%. It was proper to treat with chitosan in preparative methods of agarose for gel electrophoresis from agar.