A new method for the determination of cellulose, based upon observations on the removal of lignin and other encrusting materials

Abstract

The authors indicate that the cellulosans or polysaccharide material which is intimately associated with "pure" cellulose in most natural celluloses should remain intact in a satisfactory method for cellulose estimation. Alkaline or acid treatment splits off a portion of the cellulosans. A method is described for both straws and woods, involving first 2 treatments with neutral hypochlorite and then 3 or more with acid hy-pochloritc, each followed by boiling with Na sulphite. The products obtained from cereal straws contain some lignin.