Experimental Investigation on efficient Supercritical CO2 Extraction of Essential Oil from Turmeric Rhizomes: Effects of Geometric and other Operation Parameters
Sutapa Roy1, Chandan Guha2, Asit Kumar Saha3, Somak Jyoti Sahu4
1Sutapa Roy, Department of Chemical Engineering, Haldia Institute of Technology, Haldia 721657, West Bengal, India
2Chandan Guha, Department of Chemical Engineering, Jadavpur University, Kolkata, India.
3Asit Kumar Saha, Department of Chemical Engineering, Haldia Institute of Technology, Haldia 721657, West Bengal, India.
4Somak Jyoti Sahu, Department of Chemical Engineering, Haldia Institute of Technology, Haldia 721657, West Bengal, India.
Manuscript received on 02 June 2019 | Revised Manuscript received on 10 June 2019 | Manuscript published on 30 June 2019 | PP: 323-333 | Volume-8 Issue-8, June 2019 | Retrieval Number: H6344068819/19©BEIESP
Open Access | Ethics and Policies | Cite | Mendeley | Indexing and Abstracting
© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Supercritical carbon dioxide extraction experiments were carried out to isolate essential oil from turmeric rhizomes efficiently using extractors of annulus bed geometry and conventional cylindrical geometry using the same operating conditions of pressure 24.5 MPa, temperature 500C and particle size 0.3 mm keeping the time of extraction constant. A faster rate of extraction and improved yield was obtained in annulus bed geometry than conventional cylindrical geometry. The effect of pressure, temperature and particle size within the range of 21.6 MPa to 27.5 MPa, 400C to 600C and 0.3 mm to 0.9 mm respectively in annulus bed geometry were studied using response surface methodology. Full face central composite design method of statistical analysis was applied to find the interactions of all these parameters on oil yields and the optimum conditions. It was found that optimum oil yields of 4.454 gm oil/100 gm turmeric powder were obtained at a temperature of 59.960C and a pressure of 27.097 MPa for an average particle size of 0.3 mm. Model equations predicting the oil yields with operating parameters were also proposed.
Keyword: Supercritical carbon dioxide extraction, turmeric oil, extractor bed performance, oil yield, central composite design.
Scope of the Article: Network Operations & Management