We have been trying to extract RNA from brown algae. We have been following traditional CTAB method as modified by Sim et al., 2013. We get a very thick white jelly interface with the Chloroform isoamyl extraction and the aqueous phase is hardly 1:10 of the total extract. We are not able to obtain good quality of RNA. The RNA we obtain is only 6ng-30ng /microlitre as per nanodrop spectrophotometry which is extremely less. Please help me to troubleshoot this problem.