Copyright © 1998 Elsevier Science B.V. All rights reserved
Supercritical fluid extraction of black pepper (Piper nigrun L.) essential oil
Received 15 October 1997;
References and further reading may be available for this article. To view references and further reading you must purchase this article.
Abstract
Fixed bed extraction of black pepper essential oil using supercritical carbon dioxide as a solvent was studied. Composition of the extracted oil was obtained by chromatographic analysis, and solubility of the oil was determined using the dynamic method of extraction. Experiments were conducted at 30°C, 40°C and 50°C and 150, 200 and 300 bar. Solubility varied from 0.09 to 0.15 g oil/g CO2 and increased with the solvent density. In the extraction curves (mass of oil versus mass of CO2) it was possible to identify the constant extraction rate period as well as the failing and diffusion rate periods. About 70% of the total oil was extracted during the constant rate period.
Author Keywords: Black pepper oil; Chemical composition; CO2; Fixed bed; Mass transfer rate; Solubility
Article Outline
- 1. Introduction
- 2. Mass transfer rate and mass transfer coefficient
- 3. Material and methods
- 3.1. The apparatus
- 3.2. Experimental procedure
- 3.3. Porosity and particle diameter
- 3.4. Volatile oil determination
- 3.5. Quality of raw material and composition of essential oil
- 4. Results and discussion
- 5. Conclusions







E-mail Article
Add to my Quick Links

Cited By in Scopus (34)




