Common Name: Spearmint Essential Oil
| Botanical Name | Mentha spicata |
|---|---|
| Extraction Method | Steam Distillation |
| Plant Part Used | Fresh Leaves & Flowering Tops |
| Origin | India |
| Grades | Pharmaceutical / Food / Flavour / Cosmetic / Aromatherapy |
| Appearance | Clear, colourless to pale yellow liquid |
|---|---|
| Odour | Sweet, fresh, minty, softer than peppermint |
| Taste | Sweet, cooling, spearmint-like |
| Solubility | Soluble in alcohol and oils; slightly soluble in water |
| Specific Gravity @ 25°C | 0.915 – 0.935 |
|---|---|
| Refractive Index @ 20°C | 1.485 – 1.490 |
| Optical Rotation @ 20°C | −45° to −65° |
| Acid Value | ≤ 1.0 mg KOH/g |
| Flash Point | > 70°C |
| Residue on Evaporation | ≤ 5.0% |
L-Carvone: 50 – 70%
Limonene: 10 – 20%
Dihydrocarvone: 3 – 10%
1,8-Cineole: ≤ 5%
Menthol: ≤ 1%
*Natural variation may occur due to origin, harvest time, and distillation conditions.
Typical – Batch-wise COA supplied with each shipment
| Test Parameter | Specification | Result |
|---|---|---|
| Appearance | Clear pale yellow liquid | Conforms |
| Odour | Sweet fresh spearmint | Conforms |
| Specific Gravity @ 25°C | 0.915 – 0.935 | 0.926 |
| Refractive Index @ 20°C | 1.485 – 1.490 | 1.487 |
| Optical Rotation @ 20°C | −45° to −65° | −56.8° |
| L-Carvone | 50 – 70% | 61.4% |
| Acid Value | ≤ 1.0 | 0.3 |
| Solubility in Alcohol | Clear | Conforms |
| Heavy Metals | ≤ 10 ppm | Conforms |
| Microbial Count | Nil | Conforms |
Conclusion: The tested batch conforms to specification and is suitable for pharmaceutical, food, flavour, cosmetic, and aromatherapy applications.