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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Proposal for fractionating Brazilian ginseng extracts: Process intensification approach

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Author(s):
Vardanega, Renata ; Santos, Diego T. ; Meireles, M. Angela A.
Total Authors: 3
Document type: Journal article
Source: Journal of Food Engineering; v. 196, p. 73-80, MAR 2017.
Web of Science Citations: 3
Abstract

Brazilian ginseng (Pfaffia glomerata) roots contain several bioactive compounds, including beta-ecdysone with several therapeutic effects, saponins with surface activity and fructooligosaccharides (FOS) with prebiotic effects. Regarding this rich composition, a two-step intensified extraction process that uses the same solid-liquid extraction apparatus was developed to obtain and fractionate the bioactive compounds from Brazilian ginseng roots using ethanol and water as the extraction solvents. The intensified process was compared to a conventional extraction process using water as the solvent. The beta-ecdysone and saponins were mainly concentrated in the ethanolic extract obtained in step 1 of the intensified extraction process, while the FOS was isolated in the aqueous extract obtained in step 2. The effect of pressure (0.1, 5 and 10 MPa) on the extraction yield, beta-ecdysone content, saponin content, water surface tension reduction rate and FOS content was evaluated using the analysis of variance (ANOVA) statistical method. The highest beta-ecdysone content (5.6%, d.b.) was obtained at ambient pressure (0.1 MPa), while the highest saponin content (55%, d.b.) was obtained at 5 MPa. However, the extracts that had better surface activity were also obtained at ambient pressure. The total FOS content obtained at ambient pressure was 7.9% (d.b.). The kinetic study showed that suitable process times for the first and second steps were 38 and 110 min, respectively. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 12/19304-7 - Brazilian ginseng biorefinery: simulation and multi-objective optimization
Grantee:Diego Tresinari dos Santos
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
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: 10/16485-5 - Technical and economic evaluation of the integration of sustainable processes for a better use of brazilian ginseng (Pfaffia glomerata)
Grantee:Diego Tresinari dos Santos
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 13/17260-5 - Extraction process intensification of saponins from Brazilian ginseng (Pfaffia glomerata) using ultrasound and hyphenized processes for integral use of the plant
Grantee:Renata Vardanega
Support Opportunities: Scholarships in Brazil - Doctorate
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