Wang A W, Hill A
J Bacteriol. 1977 Apr;130(1):558-60. doi: 10.1128/jb.130.1.558-560.1977.
The high molecular-weight carbohydrate substances extracted in the aqueous and phenol phases by phenol-water extraction of Anabaena flos-aquae A-37 were found to be polysaccharides without lipid attached.