Supercritical fluid extraction assisted by cold pressing from clove buds: Extraction performance, volatile oil composition, and economic evaluation

Author(s)

Hatami, Tahmasb ^[1] ; Johner, Julio C. F. ^[1] ; Zabot, Giovani L. ^[2] ; Meireles, M. Angela A. ^[1]

Affiliation

^[1] Univ Estadual Campinas, UNICAMP, Sch Food Engn, LASEFI DEA FEA, Sch Food Engn, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil

^[2] Univ Fed Santa Maria, UFSM, LAPE, Ernesto Barros St 1345, BR-96506322 Cachoeira Do Sul, RS - Brazil

• Document type: Journal article
• Source: JOURNAL OF SUPERCRITICAL FLUIDS; v. 144, p. 39-47, FEB 2019.
• Web of Science Citations: 4

Abstract

Supercritical fluid extraction assisted by cold pressing (SFEAP) is presented for obtaining volatile oil from clove buds at 150 bar, 40 degrees C, and using two torques (40 and 80 N.m). As the best condition, SFEAP with 40 N.m provided an oil yield of 22.19 g/100 g buds containing Eugenol (57.7 wt.%), Eugenyl Acetate (12.6 wt.%), beta-caryophyllene (8.3 wt.%), and alpha-humulene (0.9 wt.%). This paper also presented, for the first time, the economic evaluation of using SFEAP instead of SFE. In the economic approach, 24 scenarios were tested in the terms of cost of manufacturing (COM), which consisted of evaluating the scale of the plant, capital financing, purchasing cost of clove, solvent to feed mass ratio and the extraction techniques. The best scenario indicated a COM of only US\$ 13.42/kg oil, whereas approximately 87% of the COM is dependent on the purchase cost of clove and other materials. (AU)

• FAPESP's process: 15/13299-0 - From seeds to final products: feasible manufacturing routes of annatto applying process intensification and process integration
• Grantee: Maria Angela de Almeida Meireles Petenate
• Support Opportunities: Regular Research Grants