Hinokitiol

Hinokitiol (also known as β-thujaplicin) is a natural monoterpenoid that is found in the wood of trees in the family Cupressaceae. It is a tropolone derivative and is known for its antimicrobial properties.

Chemistry

Hinokitiol is a monoterpenoid, specifically a tropolone derivative. It is a chiral molecule, with one stereocenter, and exists in nature as a single enantiomer. The compound is a pale yellow crystalline solid at room temperature.

Natural Occurrence

Hinokitiol is found in the wood of trees in the family Cupressaceae, including species such as Chamaecyparis obtusa (Hinoki cypress) and Thuja plicata (Western red cedar). The compound is thought to contribute to the wood's natural resistance to decay.

Biological Activity

Hinokitiol has been studied for its antimicrobial properties. It has been found to be active against a range of bacteria, including Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. It also has antifungal activity against species such as Candida albicans and Aspergillus niger.

In addition to its antimicrobial properties, hinokitiol has also been investigated for its potential anticancer activity. Some studies have suggested that it may induce apoptosis in certain types of cancer cells.

Pharmacology

The pharmacology of hinokitiol is not fully understood. However, it is thought to exert its antimicrobial effects by disrupting the cell membrane of bacteria and fungi, leading to cell death. Its potential anticancer effects may be due to its ability to induce apoptosis, or programmed cell death.

Safety

Hinokitiol is generally considered to be safe for use in humans. However, as with any substance, it can cause allergic reactions in some individuals.

See Also

• Monoterpenoid
• Tropolone
• Antimicrobial
• Apoptosis