Phytochemistry

The bioactive compounds that make this plant extraordinary

Cuban oregano produces a complex bouquet of terpenoids, flavonoids, and phenolic compounds that account for its distinctive aroma, flavor, and medicinal properties.

C

Carvacrol

30–60%
Antimicrobial phenol β€” disrupts bacterial cell membranes
T

Thymol

10–25%
Antiseptic isomer β€” active in Listerine mouthwash
pC

p-Cymene

5–15%
Biosynthetic precursor to carvacrol and thymol
Ξ³T

Ξ³-Terpinene

5–12%
Antioxidant monoterpene intermediate
Ca

Camphor

2–8%
Cooling analgesic β€” topical decongestant

Typical Essential Oil Composition

Essential Oil Carvacrol 45% Thymol 18% p-Cymene 12% Ξ³-Terpinene 10%

Essential Oil Components

C

Carvacrol

Major Component (30–60%)

A monoterpenoid phenol responsible for much of the plant's antimicrobial activity. It disrupts bacterial cell membranes and is the same compound that makes oregano oil so potent.

T

Thymol

Major Component (10–25%)

An isomer of carvacrol, thymol contributes the "thyme-like" note to the aroma. It is a potent antiseptic and the active ingredient in Listerine mouthwash.

P

p-Cymene

Significant Component (5–15%)

A monoterpene hydrocarbon that serves as a biosynthetic precursor to carvacrol and thymol. It has mild antimicrobial and insecticidal properties.

Ξ³

Ξ³-Terpinene

Significant Component (5–12%)

A monoterpene with antioxidant properties. It is a key intermediate in the biosynthesis of thymol and carvacrol in Lamiaceae species.

Ca

Camphor

Minor Component (2–8%)

Contributes the "cooling" note to the plant's scent. Camphor has been used medicinally for centuries as a topical analgesic and decongestant.

Other Bioactive Compounds

Fl

Flavonoids

Antioxidant & Anti-inflammatory

Includes cirsimaritin, salvigenin, and related methylated flavones. These compounds exhibit antioxidant, anti-inflammatory, and hepatoprotective activity.

Ph

Phenolic Acids

Antioxidant

Rosmarinic acid and caffeic acid are present, contributing to the plant's overall antioxidant capacity.

Dr

Diterpenes

Bioactive

Several abietane and pimarane-type diterpenes have been isolated, including coleonol and related compounds with anti-inflammatory and cytotoxic properties.

Mi

Minerals & Vitamins

Nutritional Value

The leaves are a good source of vitamins A and C, calcium, iron, and phosphorus. The mineral content makes it a valuable dietary supplement in subsistence cultures.

⚠️

Pulegone β€” Use with Caution

Small amounts of pulegone have been detected in some chemotypes. In large doses, pulegone is hepatotoxic and neurotoxic. Cuban oregano is safe in culinary amounts, but concentrated essential oil extracts should be used sparingly.

Essential Oil Composition Variation

πŸ§ͺ
Essential Oil Yield
0.3–1.0% (DW)
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Dominant Chemotype
Carvacrol
πŸ”¬
Total Monoterpenes
60–85%
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Key Phenol
Carvacrol + Thymol