Leuconostoc mesenteroides - From Beneficial Bacteria to Probiotic

Leuconostoc mesenteroides (L. mesenteroides) are beneficial bacteria you may not have heard about before, but their time for entry into the probiotics world has come.

If you are a vegetable fermentationist, then you are familiar with L. mesenteroides even if you don't realize it.

Leuconostoc mesenteroides is a Gram-positive bacterium in the Firmicutes phylum. It is non-motile, meaning it is incapable of moving on its own, and it is non-sporeforming. It shares the same order as the Lactobacillus, the Lactobacillales order, but from there the two bacteria differ. It is in the Leuconostocaceae family.

The type strain, the one all other strains are compared to, is L. mesenteroides subsp. mesenteroides ATCC 8293.There are 4 different subspecies, cremoris, dextranicum, mesenteroides, and suionicum. As a species, it is a facultative anaerobe.

These bacteria are generally spherical-shaped and form chains or pairs. They are one of the types of bacteria that help to make sauerkraut, some cheeses and kefir what they are, and are critical to such fermentations.

Is Leuconostoc mesenteroides Dangerous?

Although these bacteria are capable of causing rare infections in immune-compromised persons, they are generally known as beneficial bacteria. One case study that involved human deaths determined that the two separate outbreaks over a period of years were caused by contamination of the parenteral (food-tube feeding) nutrition or liquid-form nutrition, both of which were prepared in the same hospital pharmacy in Spain. The patients receiving the nutrition were extremely ill, but thankfully not everyone who received the nutrition succumbed to the infection.

Is L. mesenteroides Probiotic?

As more research is performed on this species of bacteria, some strains are making the leap from beneficial bacteria to probiotic. One such strain is L. mesenteroides subsp. mesenteroides NTM048 isolated from green peas.

As a probiotic, NTM048 is shown to have sIgA stimulating activities as well as to influence body-wide immune reactions. sIgA is the immune protein that protects mucosal surfaces, such as your gastrointestinal tract, from invaders like pathogenic bacteria and viruses. By increasing sIgA and influencing the immune response, NTM048 can provide health benefits in protecting you from pathogens and in keeping the intestinal cells healthier and close together.

While not in itself considered a probiotic, another strain produces a prebiotic that is shown to support the growth of some Bifidobacterium and Lactobacillus. This prebiotic also showed an inhibitory effect on human colon cancer cells in vitro.

Where Can You Find Leuconostoc mesenteroides?

L. mesenteroides are found on many types of fresh produce. They produce acids and bacteriocins, special antibacterial chemicals, which reduce or eliminate pathogens in ferments and in your body.

Aside from the aforementioned food and drink sources, L. mesenteroides is found in at least one probiotic supplement, Raw Probiotics for Women. You can read the review of it on this page.

Return to Homepage.

I research studies and share my clinical experience to write this free site to help you find solutions to your problems. As part of that, I recommend products and services that I genuinely believe will be of help to you. If you click on a link to a product/service, I may receive a small commission to support my efforts if you buy something. The item does not cost you more.

Thanks for visiting this site! If you've enjoyed reading this page or have found the information to be useful to you, please "like", tweet about it, or share it so others can benefit, too. You can leave comments below via Facebook or Disqus.

Comment with Facebook!

I'd love to hear your opinion about what you just read. Leave me a comment in the box below! Other commenting options follow the Facebook comments.

Comment with Disqus (including as a guest), Twitter or Google accounts:

If you are one of my many readers without a Facebook account, you can still comment.

Disclaimer: Please note: By law, I cannot provide any personalized recommendations for your specific health concern on this site. The information contained in this site is educational in nature and is not intended as diagnosis, treatment, prescription or cure for any physical or mental disease, nor is it intended as a substitute for regular medical care. Consult with your doctor regarding any health or medical concerns you may have.

Subscribe to my monthly newsletter and receive a free copy of "How to Use Probiotics to Lose Weight and Be Healthier".

To comply with the EU's GDPR data privacy regulation, please subscribe here:

Looking for some quality professional supplements, including probiotics? Check out my online dispensary, as I will be doing reviews of some of these products in the future. Click on the Fullscript picture. (Note: If you were a former Wellevate customer, please switch to Fullscript for a better customer experience. Thanks!)

SiteSell Hosting

Some competitors of SBI (Solo Build It) are posting fake negative reviews of SBI. If you are considering creating your own website business, or if you have a brick-and-mortar business but want an online presence, I highly recommend SBI!