Hydroxytyrosol is a phenolic compound mainly derived from olive trees and their leaves. As a component with anti-inflammatory, antibacterial, and anticancer functions, hydroxytyrosol is widely used in medicine, cosmetics, daily chemicals, and other fields as an important pharmaceutical raw material and chemical raw material. We can prepare hydroxytyrosol by a variety of methods, including biological, chemical, or physical methods.
Hydroxytyrosol can be extracted from olive oil residue by enzymatic or acid-catalyzed esterification. Hydroxytyrosol can also be prepared by the reduction of 3,4-dihydroxyphenylacetic acid. Hydroxytyrosol was synthesized from catechol and glyoxylic acid. Tyrosol or phenyl ethanol is converted to hydroxytyrosol by catalyzation or chemical treatment as feedstock, but this method is limited by feedstock and reaction and is currently only used in the laboratory.
There are many ways to prepare hydroxytyrosol, but in the face of large-scale production, the production process must meet the requirements of environmental protection, economy, and safety, in order to achieve long-term production and development.