| Full text | |
| Author(s): |
Carvalho, Pedro I. N.
[1]
;
Osorio-Tobon, Juan F.
[2]
;
Zabot, Giovani L.
[3]
;
Meireles, M. Angela A.
[1]
Total Authors: 4
|
| Affiliation: | [1] Univ Estadual Campinas, UNICAMP, LASEFI DEA FEA, Sch Food Engn, Rua Monteiro Lobato 80, BR-13083862 Campinas, SP - Brazil
[2] Univ Inst Colegio Mayor Antioquia COLMAYOR, Fac Hlth Sci, Carrera 78 65-46, Medellin 050036, Antioquia - Colombia
[3] Fed Univ Santa Maria UFSM, LAPE, Presidente Vargas Ave 1958, BR-96506302 Cachoeira Do Sul - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES; v. 47, p. 504-516, JUN 2018. |
| Web of Science Citations: | 0 |
| Abstract | |
Most of the studies dealing with extraction of compounds commonly consider homogeneous beds with constant temperature, although variations might exist. However, understanding that temperature can influence the fluid dynamics and solubility of compounds, this work proposed to evaluate temperature distribution in fixed beds during supercritical CO2 extraction of compounds from turmeric and clove. Two beds of 1 L with different height to diameter ratios were tested. Kinetic curves were determined, extract composition was measured and temperature distribution was mapped. Heating the beds to the desired temperature was readily reached (< 5 min) when the beds were pressurized with pre-heated CO2. During pressurization, a significant increase in temperature was observed. Gradients of temperature (until 20 degrees C) were formed during the extraction mainly in the axial direction. Furthermore, slight variations of ar-turmerone, eugenol, beta-caryophyllene, eugenyl acetate, and alpha-humulene are displayed as a function of spatial and temporal temperature variations in the beds. Industrial relevance: Experimental data of temperature distribution in fixed beds undergoing supercritical fluid extraction in industrial scale can contribute to improving the productivity (yields) and the quality (composition) of extracts containing bioactive compounds. In food-related areas, bioactive compounds are searched for applications as antioxidant, anti-inflammatory, and antimicrobial agents. (AU) | |
| FAPESP's process: | 12/10685-8 - Combination and coupling of processes for the production and encapsulation of value-added vegetal extracts: technical and economic evaluation |
| Grantee: | Maria Angela de Almeida Meireles Petenate |
| Support Opportunities: | Regular Research Grants |
| 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 |
| FAPESP's process: | 13/04304-4 - Development of integrated systems for the analysis of bioactive compounds in natural products employing supercritical technology |
| Grantee: | Maurício Ariel Rostagno |
| Support Opportunities: | Research Grants - Young Investigators Grants |
| FAPESP's process: | 13/20758-5 - Volatile oil extraction from turmeric by supercritical carbon dioxide: study of the extraction in beds of different geometries and operational configurations |
| Grantee: | Pedro Ivo Nunes de Carvalho |
| Support Opportunities: | Scholarships in Brazil - Doctorate (Direct) |