HETEROHORISATSUKARAIDOSS88

摘要

A heteropolysaccharide called S-88 is prepared by fermentation of an unnamed Pseudomonas species, ATCC 31554. The polysaccharide has valuable properties as a thickening, suspending and stabilizing agent in aqueous systems. It is especially useful in formulating oil well drilling fluids and muds. Its chemical composition is within the following weight ranges of sugars: 10- 20% glucuronic acid; 10-30% mannose; 30-40% glucose; 35-45% rhamnose; the polymer also contains 3-7% acetyl groups.