... by fermentation with Xanthomonas Campestris under the conditions of special nutrient medium, PH, O2-supply and temperature, the purified, ... A. Food pharmaceutical,B. Fine chemical,C. Agriculture,D. Oil drilling, and so on3. Advantages.1. Outstanding viscosity-enhancing ... Gum can be applied to many industrial fields, such as oil drilling, pesticide, pottery & porcelain, printing & dyeing, paint, paper ...