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Vitamins also get produced in massive quantities either by fermentation or biotransformation. [2] Vitamin B 2 (riboflavin) for example is produced both ways. Biotransformation is mostly used for the production of riboflavin, and the carbon source starting material for this reaction is glucose.
Industrial production of B 12 is achieved through fermentation of selected microorganisms. [134] Streptomyces griseus, a bacterium once thought to be a fungus, was the commercial source of vitamin B 12 for many years. [135] The species Pseudomonas denitrificans and Propionibacterium freudenreichii subsp. shermanii are more commonly used today ...
The Reichstein process in chemistry is a combined chemical and microbial method for the production of ascorbic acid from D-glucose that takes place in several steps. [1] This process was devised by Nobel Prize winner Tadeusz Reichstein and his colleagues in 1933 while working in the laboratory of the ETH in Zürich.
Cholecalciferol, also known as vitamin D 3 or colecalciferol, is a type of vitamin D that is produced by the skin when exposed to UVB light; ... Industrial production
This was followed in the 1950s by the mass production and marketing of vitamin supplements, including multivitamins, to prevent vitamin deficiencies in the general population. [8] Governments have mandated the addition of some vitamins to staple foods such as flour or milk, referred to as food fortification, to prevent deficiencies. [9]
Vitamin D is a group ... this is based on the observation that endogenous skin production with full body exposure to sunlight or use ... For industrial purposes such ...
The outdated but historically significant industrial synthesis of ascorbic acid from glucose via the Reichstein process. Seventy percent of the world's supply of ascorbic acid is produced in China. [36] Ascorbic acid is prepared in industry from glucose in a method based on the historical Reichstein process.
The structure of vitamin B 12 was the first low-molecular weight natural product determined by x-ray analysis rather than by chemical degradation. Thus, while the structure of this novel type of complex biomolecule was established, its chemistry remained essentially unknown; exploration of this chemistry became one of the tasks of the vitamin's chemical synthesis.
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