Sanxan gum synthetic strain

Sphingomonas Sphingomonas The present invention relates to Sanxan gum preparation, and more particularly to a Sanxan gum synthetic strain-sp. with a molecular marker and application thereof in Sanxan gum preparation by inoculating the sp. strain (CGMCC No. 19480) into a culture medium containing a carbon source and a nitrogen source after sterilization, aeration fermentation and extraction. The invention solves the problems of no rapid identification of a product containing Sanxan gum and synthetic strain, and low performance indexes of a prepared Sanxan gum. It can quickly identify whether a product contains Sanxan gum. The main technical indicators of the prepared Sanxan gum products are significantly better than the existing products.