DNA purification problem: glycogen

[Antonio Rodriguez-Ariza]

I am having problems in the purification of total DNA from fish liver.
Using distinct protocols for extraction (phenol/chloroform or
benzylchloride), I always obtain a DNA solution with a high amount of
glycogen. How can I remove the glycogen?
I would greatly appreciate receiving any help.

Thanks

Antonio Rodriguez-Ariza
E-mail: bb1roara at lucano.uco.es
Dpto. Bioqu’mica y Biolog’a Molecular
Univ. Cordoba
SPAIN