Carrageenan each plant weighs approximately 1 kg. The "E. cottonii" variety has been reclassified as "Kappaphycus cottonii" by Maxwell Doty (1988), thereby introducing the genus "Kappaphycus", on the basis of the phycocolloids produced (namely kappa carrageenan). After harvest, the seaweed is dried, baled, and sent to the carrageenan manufacturer. There the seaweed is ground, sifted to remove impurities such as sand, and washed thoroughly. After treatment with hot alkali solution (e.g., 5–8% potassium hydroxide), the cellulose is removed from the carrageenan by centrifugation and filtration. The resulting carrageenan solution is then concentrated by evaporation. It is dried and ground to specification.
Purple Heart red bars and three red stars in chief) between sprays of green leaves. The reverse consists of a raised bronze heart with the words below the coat of arms and leaves. The ribbon is wide and consists of the following stripes: white 67101; purple 67115; and white 67101. Additional awards of the Purple Heart are denoted by oak leaf clusters in the Army and Air Force, and additional awards of the Purple Heart Medal are denoted by inch stars in the Navy, Marine Corps, and Coast Guard. Current active duty personnel are awarded the Purple Heart upon recommendation from their