How is this Shennong chrysanthemum oil extracted, and why is steam distillation preferred?
The oil is produced by classic water-steam distillation of the fresh flowering whole herb, a method that preserves the borneol-rich camphoraceous profile without solvent residue.
Extraction Details
| Item | Detail |
|---|---|
| Method | Steam distillation |
| Raw material | Fresh flowering herb (whole aerial part) |
| Still temperature | 95–105°C, 1–2 hours (patented process CN101928642B) |
| Separation | Oil–water separator, three-stage; emulsified layer recovered with petroleum ether |
| Refining | Rota-evaporation concentration; optional alcohol-reflux / ethyl-acetate extraction for high-value fractions |
- Steam distillation keeps the product 100% solvent-free, which matters for aromatherapy and cosmetic-grade claims
- An enzyme-pretreatment route (cellulase:pectinase 3:1, per CN101731748B) can raise volatile-oil yield for the tobacco-flavor segment
- Every batch is verified by GC-MS fingerprinting before release
For your target application we can match the extraction route (plain steam distillation or combined extraction) to your specification.
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This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.
