Abstract
By solvent crystallization using diethyl ether as the solvent on sterol mixture, brassicasterol and stigmasterol that contains a side chain with double bond were separated from campesterol and β-sitosterol with a saturated side chain. The total campesterol and β-sitosterol content in the liquid phase was more than 97% with a recovery of 12%. Multistage crystallization using acetone as the solvent could increase the recovery of campesterol and β-sitosterol to 30%. By employing zeolite selective adsorption on the campesterol and β-sitosterol fraction, β-sitosterol can be recovered in the liquid phase with a purity of 95.2% and a recovery of 3% (overall recovery 1%). After desorbing in ethanol, campesterol adsorbed on the zeolite can be recovered with a purity of 95.4% and a recovery of 3.7% (overall recovery 1.6%).
| Original language | English |
|---|---|
| Pages (from-to) | 3027-3038 |
| Number of pages | 12 |
| Journal | Separation Science and Technology |
| Volume | 41 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - 1 Sept 2006 |
| Externally published | Yes |
Keywords
- Adsorption
- Phytosterol
- Solvent crystallization
- Zeolite