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Eugenol / ˈ j uː dʒ ɪ n ɒ l / is an allyl chain-substituted guaiacol, a member of the allylbenzene class of chemical compounds. [2] It is a colorless to pale yellow, aromatic oily liquid extracted from certain essential oils especially from clove , nutmeg , cinnamon , basil and bay leaf .
Oil of clove, also known as clove oil or eugenol, is an essential oil extracted from the clove plant, Syzygium aromaticum. [1] [2] Clove oil is commonly used in aromatherapy and for flavoring food, tea, and toothpaste. [2] [3] In alternative medicine, it may be used as a topical medication to relieve toothache.
The compound eugenol is responsible for most of the characteristic aroma of cloves. Eugenol comprises 72–90% of the essential oil extracted from cloves, and is the compound most responsible for clove aroma. [14] [53] Complete extraction occurs at 80 minutes in pressurized water at 125 °C (257 °F). [54]
Zinc oxide eugenol (ZOE) is a material created by the combination of zinc oxide and eugenol contained in clove oil. ... (pulp) called root canal therapy.
Zinc oxide eugenol This cavity lining is often used with a high strength base to provide strength, rigidity and thermal insulation. However, eugenol may have an effect on resin-based filling materials, as it interferes with polymerization and occasionally causes discoloration.
A 2020 study showed that eugenol — clove essential oil — increased the hardness of diabetic rats. ... The internet is well-populated with so-called benefits of cloves, honey and orange. ...
Vanillin was first synthesized from eugenol (found in oil of clove) in 1874–75, less than 20 years after it was first identified and isolated. Vanillin was commercially produced from eugenol until the 1920s. [37] Later it was synthesized from lignin-containing "brown liquor", a byproduct of the sulfite process for making wood pulp. [12]
Guaiacol is a precursor to various flavorants, such as eugenol. [15] An estimated 85% of the world's supply of vanillin comes from guaiacol. Because consumers tend to prefer natural vanillin to synthetic vanillin, methods such as microbial fermentation have been adopted.