Lactobacillus rhamnosus
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Lactobacillus rhamnosus (Hansen 1968) Collins et al. 1989 |
Lactobacillus rhamnosus was originally considered to be a subspecies of L. casei, but new genetic research found it to be a species of its own. L. rhamnosus inhibits growth of most harmful bacteria in the gut. It is used as a natural preservative in yogurt and other dairy products to extend the shelf life. Some studies have been done on its in vivo effects.