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Allantoin is a major metabolic intermediate in most organisms including animals, plants and bacteria, though not humans. It is produced from uric acid, which itself is a degradation product of nucleic acids, by action of urate oxidase (uricase). [3] [4] [5] Allantoin also occurs as a natural mineral compound (IMA symbol Aan [6]).
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All these salts exhibit greater solubility in hot water than cold, allowing for easy recrystallization. This low solubility is significant for the etiology of gout. The solubility of the acid and its salts in ethanol is very low or negligible. In ethanol/water mixtures, the solubilities are somewhere between the end values for pure ethanol and ...
A traditional Chinese herbal decoction (湯劑/汤剂) Turkish coffee beginning to boil. Decoction compares to brewing coffee through percolation.. Decoction is a method of extraction by boiling herbal or plant material (which may include stems, roots, bark and rhizomes) to dissolve the chemicals of the material.
Carbonated soda treatment of phytobezoars is the use of carbonated soda to try to dissolve a phytobezoar. Bezoars consist of a solid and formed mass trapped in the gastrointestinal system, usually in the stomach. [1] [2] [3] These can also form in other locations. [4] [5] Carbonated soda has been proposed for the treatment of gastric phytobezoars.
What the science says about apple cider vinegar. Dr. McDonald adds that there is some evidence suggesting that apple cider vinegar can aid in weight loss and balance blood sugar levels, which ...
In enzymology, an allantoinase (EC 3.5.2.5) is an enzyme that catalyzes the chemical reaction (S)-allantoin + H 2 O allantoate. Thus, the two substrates of this enzyme are (S)-allantoin and H 2 O, whereas its product is allantoate.
Organic solvent extraction is the most common and most economically important technique for extracting aromatics in the modern perfume industry. Raw materials are submerged and agitated in a solvent that can dissolve the desired aromatic compounds. Commonly used solvents for maceration/solvent extraction include hexane, and dimethyl ether.