Gellan Gum History Written by CINOGEL BIOTECH on 10:08 PM in Calcium ion, Gel Test, Gellan Gum History, Sodium ion Gellan gum is the generic name for extracellular polysaccharide produced by bacterium Pseudomonas elodea. Kaneko and Kang discovered the polymer in the laboratory of the Kelco Division of Merck and Co., California, USA in 1978. Share: Read More