HEALTH FUNDAMENTALS
Fermentation
What is fermentation?
Fermentation is a process in which microorganisms modify the functional and organoleptic properties of food products, affecting their appearance, color, taste, and smell to stimulate human sensory organs.
During fermentation, bacteria and fungi produce enzymes that create new products with altered taste, smell, and nutritional value, resulting in improved microstability and safety. Fermented products contain nutrients not available in fresh and unfermented products.
Biochemically, fermentation is a metabolic process generating energy from organic compounds, converting carbohydrates like starch and glucose into alcohol and organic acids. The fermentation process depends on the correct balance of temperature, humidity, and oxygen, including three processes:
❇️ oxidation in the presence of oxygen,
❇️ fermentation in an anaerobic environment due to microorganisms or their enzymes,
❇️ changes due to the action of the product's own enzymes.
Fermentation preserves products by forming inhibitory metabolites like carbon dioxide, bacteriocins, diacetyl, reuterin, ethanol, and organic acids. Product safety can be enhanced by reducing water content, drying, adding salt, removing toxic compounds, and inhibiting pathogens. Fermentation not only enhances organoleptic properties and nutritional value but also makes products easier to assimilate by breaking down complex chemical compounds into simpler elements.
Fermentation
The best-known product that many people associate with fermentation is sauerkraut. Incidentally, in the 18th century, the English navigator James Cook sailed around the world thanks to sauerkraut. At that time, a major problem for sailors was scurvy, a disease associated with vitamin C deficiency. Sauerkraut proved to be a lifesaver for sailors, as it is an excellent source of this vitamin.
Fermentation, of course, is not limited to sauerkraut alone. Almost all vegetables can be fermented. In fact, fermentation is used at some stage in the preparation of one third of the foods we use in everyday life, both to obtain specific flavor characteristics and to extend shelf life.
Fermentation includes souring, culturing, and brewing (in relation to beer). A product can be considered fermented if no heating, pasteurization, or sugar has been used in its preparation, and if no industrially produced vinegar or various preservatives have been added.
During the fermentation process, with the help of bacteria and fungi, carbohydrates and sugars are converted into organic acids.
As lactic acid bacteria multiply, the product can be stored for a long time. Such fermented products are easier for the body to assimilate, and new biologically active substances appear in them.
Bee bread is also a fermented product; in fact, it is fermented flower pollen. This work has been carried out by bees without human intervention.
Butyrate significantly improves nutrient assimilation
Butyrate is an important metabolite in the gut, produced through lactic acid fermentation and involved in the metabolism of gut epithelial microorganisms. Unfermented vegetables do not contain butyrate.
Fresh carrot juice is sweet, but its storage time is just over one day. Through fermentation, the sugar content decreases by nearly half, making the juice less sweet and not increasing blood sugar levels. The amount of biologically active substances, such as carotenoids and vitamins, increases in fermented juice, as well as its shelf life - up to more than a month. Lactic acid fermentation produces organic compounds like lactates, propionates, acetates, and butyrate, which can be derived from almost all vegetables only in this process. Butyrate acts as a lubricant and promotes intestinal peristalsis, improving nutrient assimilation. It makes a person more energetic and optimistic.
During fermentation, lactic acid bacteria produce antimicrobial compounds and create an acidic pH environment, thus extending the product's shelf life. Achieving acidity at pH 4.5 inhibits pathogenic microorganisms, such as the botulinum spore (Lat. Clostridium botulinum). Adding 2% saline solution during the preparation of the fermenting product prevents the formation of acetone and the proliferation of pathogenic microflora until the product reaches a pH of 4.5.

