Metabolites are the intermediates and products of pigments, odorants, and pheromones). A primary metabolite is directly involved in normal "growth", development, and reproduction. Ethylene is an example of a primary metabolite produced in large-scale by industrial microbiology. A secondary metabolite is not directly involved in those processes, but usually has an important ecological function. Examples include antibiotics and pigments such as resins and terpenes etc. Some antibiotics use primary metabolites as precursors, such as actinomycin which is created from the primary metabolite, tryptophan.
Examples of primary metabolites produced by industrial microbiology:[1]
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Class
|
Example
|
|
Alcohol
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Ethanol
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|
Amino acids
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Glutamic acid, aspartic acid
|
|
Nucleotides
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5' guanylic acid
|
|
Antioxidants
|
Isoascorbic acid
|
|
Organic acids
|
Acetic acid, lactic acid
|
|
Polyols
|
Glycerol
|
|
Vitamins
|
B2
|
The metabolome forms a large network of metabolic reactions, where outputs from one enzymatic chemical reaction are inputs to other chemical reactions.
Metabolites from chemical compounds, whether inherent or pharmaceutical, are formed as part of the natural biochemical process of degrading and eliminating the compounds. The rate of degradation of a compound is an important determinant of the duration and intensity of its action. Profiling metabolites of pharmaceutical compounds, drug metabolism, is an important part of drug discovery, leading to an understanding of any undesirable side effects.
References
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^ Demain, Arnold L. "Microbial Production of Primary Metabolites." MIT, 1980.
See also
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