Toolbox for lactic acid bacteria and Bifidobacteria

Lactic acid bacteria and Bifidobacteria are known to for their need of complex nutrients. However, to select the right products remains a challenge. Our X-SEED® product line provides an excellent toolbox to grow your strain fast, yielding high numbers of viable and robust cells.

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Lactic acid bacteria and Bifidobacteria are mostly isolated from nutrient-rich environments. Additionally, in their natural environment they are often found in mixed cultures together with other strains, where they benefit from cross feeding. As a result, most of these type of bacteria have lost the ability to produce several amino acids and vitamins, and are therefore unable to grow in an industrial setup without addition of complex nutrients.

Using several demonstrations, this toolbox presents how Ohly’s X-SEED® products can be used to enhance the growth, viability and overall performance of lactic acid bacteria and bifidobacteria. The research also shows approaches to test and evaluate different complex nutrient sources. This enables optimization of your culture medium not only for fast growth, but also to guarantee high cell viability, activity and stability of your cultures.

Featured Products


A yeast extract made by autolysis, resulting in a high free amino acids content. In addition, it is an excellent source of B-vitamins and naturally bound minerals. The complex mixture of metabolites in the yeast extract functions as growth-factors for optimal performance in fermentation processes.

X-SEED® Peptone

Yeast as the perfect source of peptone. It is characterized by having more small peptides than most other peptones (~90% of the peptides has a molecular weight lower than 2 kDa).

X-SEED® Nucleo Advanced

A yeast extract that is processed in such a way that the RNA is converted into free nucleotides. It is an excellent source of free ribonucleotides and easy available peptides.

X-SEED® Nucleo Classic

Yeast extract with a well balanced composition of free amino acids, easy available natural peptides and ribonucleotides.

X-SEED® Nucleo Max

Naturally enriched yeast extract, processed to contain high amounts of free nucleotides.


Application demonstrations

Smart application examples for increased performance