DEFINITION

Lactobacillus rhamnosus is a gram-positive, rod-shaped, heterofermentative non-spore-forming bacterium. Cells are nonmotile rods often with square ends, occurring singly or in chains. Arginine is not hydrolyzed. Suitable cryoprotectants may be added to the concentrated bacteria following fermentation, after which the product is frozen and then freeze-dried. The formulated product may be blended with suitable diluents and/or bulking agents. It contains NLT 100% of the labeled viable cell count of the appropriate strain of Lactobacillus rhamnosus.

• Strain HN001: Strain HN001 is a pure, specific strain of Lactobacillus rhamnosus. It is a non-d-lactate producer strain. It contains plasmids.

• Strain GG: Strain GG is a pure, specific strain of Lactobacillus rhamnosus. It is a non-d-lactate producer strain. It contains no plasmid.