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Allicin is an organosulfur compound obtained from garlic and leeks. [1] When fresh garlic is chopped or crushed, the enzyme alliinase converts alliin into allicin, which is responsible for the aroma of fresh garlic. [2] Allicin is unstable and quickly changes into a series of other sulfur-containing compounds such as diallyl disulfide. [3]
Allicin breaks down into additional organosulfur compounds. In the presence of oil or organic solvents, among the compounds formed are the isomeric vinyldithiins and ajoene . As shown in the Scheme, allicin ( 1 ) decomposes into 2-propenesulfenic acid ( 2 ) and thioacrolein ( 3 ).
The structure of ajoene was determined and it was synthesized based on biosynthetic considerations in 1984, [1] correcting an incorrect structure published in 1983. [2] A short, scalable total synthesis of ajoene was reported in 2018 by Wirth and coworkers [3] while a biosynthetically modeled synthesis of trifluoroajoene from difluoroallicin was published in 2017. [4]
The sulfur compound allicin, produced by crushing or chewing fresh garlic, [10] produces other sulfur compounds: ajoene, allyl polysulfides, and vinyldithiins. [2] Aged garlic lacks allicin, but may have some activity due to the presence of S-allylcysteine. Some people suffer from allergies to garlic and other species of Allium. [2]
It is a yellowish liquid which is insoluble in water and has a strong garlic odor. It is produced during the decomposition of allicin, which is released upon crushing garlic and other plants of the family Alliaceae. Diallyl disulfide has many of the health benefits of garlic, but it is also an allergen causing garlic allergy.
Vitamin D is among the supplements he uses regularly. Dr. Eric Verdin studies the biology of aging and how our lifestyle can extend our quality of life. Vitamin D is among the supplements he uses ...