Kefir and Yogurt Microbes, Kefir Changes when Cultured

Kefir and Yogurt Microbes, Kefir Changes when Cultured

Note that neither kefir nor yogurt is a good source of Bifidobacteria.
From MetaMetrix stool test results I have found on the web,
I see than many show low Bifidobacteria.
It might be better to buy the needed probiotics and culture them at home to increase their numbers.

http://www.uco.es/~q62higaa/Otros/K%C3%A9fir.pdf

In an investigation of the changes in the microflora
along the pathway:
>>kefir grains (A)
>>kefir made from kefir grains (B)
>>kefir made from kefir as inoculum (C) ,

the following species of lactic acid bacteria (83–90%)
of the microbial count in the grains) were identified:
Lactococcus lactis subsp. lactis,
>Streptococcus thermophilus,
>Lactobacillus delbrueckii subsp. bulgaricus,
Lactobacillus helveticus,
Lactobacillus casei subsp. pseudoplantarum and
Lactobacillus brevis.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC544258/

>Lactobacillus delbrueckii subsp. bulgaricus and
>Streptococcus thermophilus have been classically used
as starters for milk fermentation in yogurt production.

The aim of this study was to assess the presence
of yogurt microorganisms in human feces
after repeated oral yogurt intake in healthy young volunteers, […]

These results indicate the absence
of viable L. delbrueckii and S. thermophilus
at concentrations higher than 103 CFU/g
(our limit of detection) in fecal samples.

[…] we only tested the viability of yogurt bacteria
in feces, and lack of survival of these organisms
in the upper gastrointestinal tract
cannot be inferred from these results.

However, our negative results
obtained by both culture and DNA detection in feces
indicate that a substantial multiplication
of yogurt bacteria in the small intestine
is not expected to occur.
Obviously, we cannot discount
on the basis of our experiments
the possibility that the effect of yogurt
is more related to prebiotics than to probiotics.

http://www.medicinalfoodnews.com/vol02/issue5/yogurt.htm

Today yogurt is strictly defined as a milk product
produced by the action of two bacteria –
Streptoccus thermophilus and
Lactobacillus bulgaricus.

In addition, yogurt now may contain bifido bacteria
and sometimes lactobacillus casei.
The first two are needed to convert milk to yogurt and
the later two are being added
because of their health promoting properties.

http://www.culturesforhealth.com/milk-kefir-grains-composition-bacteria-yeast

Click the link to see the full list.

Composition of Milk Kefir Grains: Bacteria & Yeasts
Milk Kefir Grains are a combination of live bacteria and yeasts
which exist in a symbionic matrix.
While a highly complext and variable community
of lactic acid bacteria and yeasts
can be found in kefir grains,
this is a list of the specific set of active bacteria and yeast generally known to comprise Milk Kefir Grains:*
Bacteria
Species Lactobacillus
Lb. acidophilus
Lb. brevis [Possibly now Lb. kefiri]
Lb. casei subsp. casei
----see more by clicking the above link to the website---
*Please note, this list is for general informational purposes only. We do not test individual batches of Milk Kefir Grains for yeast and bacteria content, therefore we cannot make any guarantees to the exact probiotic make up any particular set of Milk Kefir Grains sold on our website
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