186.1275—Dextrans.
        
        (a) 
         Dextrans (CAS Reg. No. 9004-54-0) are high molecular weight polysaccharides produced by bacterial fermentation of sucrose. Commercially available dextrans are synthesized from sucrose by Leuconostoc mesenteroides strain NRRL B-512(F). Partial depolymerization and purification of the fermented mixture shall produce a product that is free of viable microorganisms.
    
    
    
    
        
        (d) 
         Prior sanctions for this ingredient different from the uses established in this section do not exist or have been waived.