Title
Pressurized liquid extraction and low-pressure solvent extraction of carotenoids from pressed palm fiber: Experimental and economical evaluation
Date Issued
01 April 2015
Access level
metadata only access
Resource Type
journal article
Author(s)
Coutinho J.P.
Godoy H.T.
Forster-Carneiro T.
Meireles M.A.A.
University of Campinas
University of Campinas
Publisher(s)
Institution of Chemical Engineers
Abstract
In this work, a comparison of Soxhlet extraction (LPSE-SOX), percolation (LPSE-PE) and pressurized liquid extraction (PLE) for the recovery of carotenoid-rich extracts from pressed palm fiber (PPF) was carried out in terms of yield, carotenoid profile and economic viability to evaluate the methods' industrial applicability. An optimization study was performed for each extraction technique with ethanol at a solvent/feed ratio of 20. The independent variables were temperature (35-55 °C), pressure (0.1-8 MPa) and flow rate (1.6, 2.4 g/min). The results showed that the global extraction yield obtained using LPSE-SOX (96 ± 4 mg extract/g PPF d.b.) after 6 h was higher than that obtained using LPSE-PE (74 ± 5 mg extract/g PPF d.b., 35 °C, 2.4 g/min) or PLE (44 ± 3 mg extract/g PPF d.b., 55 °C, 4 MPa, 2.4 g/min) after dynamic extraction time of 17 min under optimized conditions. On the other hand, the carotenoid yield obtained using PLE (305 ± 18 μg α-carotene/g extract and 713 ± 46 μg β-carotene/g extract) was higher than the obtained by LPSE-SOX (142 ± 13 μg α-carotene/g extract and 317 ± 46 μg β-carotene/g extract). PLE technique showed the highest selectivity for carotenoids than LPSE techniques. The lowest cost of manufacturing (COM) were obtained for LPSE-PE and PLE with values of US$13.4 and US$29.2/kg extract for a 0.5 m3 vessel capacity.
Start page
90
End page
100
Volume
94
Language
English
OCDE Knowledge area
Ingeniería de producción
Subjects
Scopus EID
2-s2.0-84927556435
Source
Food and Bioproducts Processing
ISSN of the container
09603085
Sponsor(s)
The authors acknowledge the financial support of FAPESP ( 2011/19817-1 and 2012/10685-8 ); F.P. Cardenas-Toro is grateful to CAPES–PEC–PG ( 5945100 ) for the Ph.D. assistantship; and M.A.A. Meireles is grateful to CNPq for the productivity grant ( 301301/2010-7 ).
Sources of information:
Directorio de Producción Científica
Scopus