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Microorganisms with power


What is yeast?

Yeasts, single-celled, miniature organisms, are invested with immense biological activity. They are to be found everywhere in nature: on fruit, vegetables, flowers, cereal, in the air, on human skin and also in the stomach and intestines. 

If it were not for the manifold and useful services performed by yeasts, the richness and diversity of the food on our tables would be much reduced. We have all benefited at some time or other from the activity of these living, plant organisms: 

  • they ferment grape juice to form wine and fruit juices to make cider and fruit wines 
  • they cause dough to rise for bread 
  • they ferment beer

The existence of yeasts was established in the 17th century after the invention of the microscope. But it was not until 1870 that Louis Pasteur described the influence of yeasts on fermentation for the first time. The remark “Yeasts are our invisible helpers” was coined by his Munich contemporary, Pettenkofer. If they have sufficient nutrients, every yeast cell will form a bud every 20 minutes. Every one of these buds will then detach and reproduce in turn.

Benefits of yeasts


Yeast are regarded as a therapeutic agent for skin problems and ensure strong hair growth and healthy nails. Yeast is available in the form of live, fresh yeast, inactivated dried yeast or as plasmolysed herbal yeast (Bio-Strath). 

It is not advisable to eat live yeast because it remains live while it passes through the intestines and absorbs B vitamins from the gut. Dried brewer’s yeast loses a certain amount of its value because of its initial use in beer production and the subsequent debittering process. This is why plasmolysed herbal yeast is the most valuable yeast product available.

Of all non-animal foods, yeasts possess the highest and, above all, the most balanced levels of B vitamins. These water soluble vitamins – B1 (thiamine), B2 (riboflavin), B6 (pyridoxine), B12 (cobalamin), biotin, folic acid, niacin and pantothenic acid – are referred to as a complex, a powerful “secret society”. If even one of the components of this complex is absent, the metabolic chain will be broken. Yeast, and the Bio-Strath products in particular, are particularly valuable because, on the one hand, they constitute a well balanced source of all the B vitamins, including vitamin B12, while, on the other, they also contain all the essential amino acids, selenium, zinc, precursors of coenzyme Q10,
and other bioactive substances, such as mannan and glucan, on which our immune defence depends. 

A healthy gastrointestinal environment plays a decisive role in the uptake of B vitamins. The human body is capable of synthesising its own supplies of some B vitamins, such as niacin and biotin. Many of the body’s metabolic processes that are accomplished via enzymes not only depend on an adequate supply but also on vital, healthy and active gastrointestinal mucous membranes. 

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