Lactobacillus GG

Patent Pending Lactobacillus rhamnosus GG (ATCC 53103) is a strain of L. rhamnosus isolated in 1983 from the intestinal tract of a healthy human being; filed for patent on 17 April 1985, by Sherwood Gorbach and Barry Goldin.[2] (The 'GG' derives from the first letters of their surnames').[3] The patent refers to a strain of "L. acidophilus GG" with American Type Culture Collection (ATCC) Accession No. 53103; later reclassified as a strain of L. rhamnosus. The patent claims the L. rhamnosus GG (ATCC 53103) strain is acid- and bile-stable, has a great avidity for human intestinal mucosal cells, and produces lactic acid.