Mentha Oil, extracted from the Mentha arvensis plant, also known as cornmint or Japanese mint, is a highly aromatic essential oil known for its strong minty fragrance and high menthol content. It is widely used in the pharmaceutical, cosmetic, and flavoring industries.
Chemical Composition
Menthol: 70-80%
Menthone: 5-10%
Isomenthone: 2-5%
Neomenthol: 2-5%
Menthyl Acetate: 2-5%
Limonene: 1-5%
1,8-Cineole: 1-5%
Pulegone: ≤ 1%
Specifications
Identification:
GC-MS Analysis: The chromatogram should show major peaks corresponding to menthol, menthone, and other minor constituents.
Assay: Menthol Content: 70-80% (measured by GC)
Physical Tests:
Specific Gravity: 0.890 – 0.910
Refractive Index: 1.460 – 1.475
Optical Rotation: -15° to -35°
Purity: Free from adulterants, additives, or contaminants.
Acid Value: Should not exceed 3.0
Ester Value: Should be within 3.0 – 8.0
Therapeutic Uses
Pharmaceuticals: Used in topical analgesics, decongestants, and cough remedies for its cooling and soothing properties.
Flavoring: Extensively used in food, beverages, and oral care products for its strong minty flavor.
Cosmetics: Included in products like toothpaste, mouthwash, and balms for its refreshing and invigorating effects.
Aromatherapy: Employed for its stimulating and refreshing aroma.