Extraction of rotenoids from Derris elliptica using supercritical CO2. Issue 12 (16th August 2018)

• Record Type: Journal Article
• Authors: Baldino, Lucia; Scognamiglio, Mariarosa; Reverchon, Ernesto
• Is Part Of: Journal of chemical technology & biotechnology. Volume 93:Issue 12(2018)
• Page Start: 3656
• Page End: 3660
• Publication Date: 2018-08-16
• Subjects: derris -- rotenone -- supercritical fluid extraction -- supercritical CO2 -- insecticide; Biotechnology -- Periodicals; Chemistry, Technical -- Periodicals; Chemical engineering -- Periodicals; Industries -- Environmental aspects -- Periodicals; 660
• DOI: 10.1002/jctb.5764
• Languages: English
• ISSNs: 0268-2575

Abstract

Abstract: BACKGROUND: Supercritical (SC)‐CO2 extraction of rotenoids from Derris elliptica roots was proposed using fractional separation of the extracts and operating at increasing pressure. RESULTS: The best processing conditions were found at 200 bar, 40 °C and 1.2 kg h −1 SC‐CO2 flow rate, obtaining a final product with a concentration of 93% w/w of rotenone and rotenoids, and a yield of active principles of 6.70% w/w with respect to the vegetable matrix. Very small quantities of waxes were found, up to 0.05% w/w; this result can be explained considering the reduced surface‐to‐volume ratio of this vegetable material. CONCLUSION: Extraction kinetics data confirmed that, in this case, the extraction process was controlled by solubility limitation of the active compounds in the supercritical solvent. © 2018 Society of Chemical Industry