Geraniol

Chemical structure of Geraniol

Geraniol is a monoterpenoid and an alcohol. It is the primary component of rose oil, palmarosa oil, and citronella oil. Geraniol is commonly used in perfumes and flavorings due to its sweet, rose-like scent.

Chemical Properties

Geraniol is a clear, colorless liquid with a sweet, floral aroma. Its chemical formula is C₁₀H₁₈O, and it is classified as an acyclic monoterpene alcohol. The structure of geraniol consists of a ten-carbon chain with a hydroxyl group attached to the end, making it an alcohol.

Occurrence

Geraniol is naturally found in the essential oils of several aromatic plants. It is a major constituent of rose oil, which is extracted from the petals of the Rosa damascena and Rosa centifolia species. It is also present in palmarosa oil, derived from the Cymbopogon martinii plant, and in citronella oil, which is obtained from the leaves and stems of various species of Cymbopogon.

Uses

Perfumery

Geraniol is widely used in the fragrance industry due to its pleasant, rose-like aroma. It is a key ingredient in many perfumes and scented products, providing a floral note that is both sweet and fresh.

Flavoring

In the food industry, geraniol is used as a flavoring agent. It imparts a sweet, fruity taste to various food products, including beverages, candies, and baked goods.

Insect Repellent

Geraniol is also known for its insect-repelling properties. It is used in natural insect repellent formulations to deter mosquitoes and other pests.

Biological Activity

Geraniol has been studied for its potential biological activities. It exhibits antimicrobial properties, making it effective against certain bacteria and fungi. Additionally, geraniol has been investigated for its potential anti-inflammatory and antioxidant effects.

Safety

Geraniol is generally recognized as safe (GRAS) by the Food and Drug Administration (FDA) when used in food products. However, it can cause skin irritation in some individuals, particularly when used in high concentrations in cosmetic products.

Related Pages

• Monoterpenes
• Essential oils
• Perfume
• Insect repellent