fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

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PARTICLE FORMATION OF Casearia sylvestris EXTRACT USING A SUPERCRITICAL ANTI-SOLVENT PROCESS

BENELLI, P.; COMIM, S. R. ROSSO; PEDROSA, R. C.; OLIVEIRA, J. V. de; FERREIRA, S. R. S.;

Artigo:

This research aimed the encapsulation of guaçatonga (Casearia 13 sylvestris) extract in the biopolymer Pluronic F127 by means of supercritical anti-14 solvent (SAS) technique. The system was composed by guaçatonga extract, 15 Pluronic F127, organic solvent (ethanol or ethyl acetate) and supercritical carbon 16 dioxide (CO2). Supercritical C. sylvestris extract was obtained at 50oC, 300 bar 17 and CO2 flow rate of 8.3 ± 2 g/min added of 5% (wt/wt) of ethanol, for 3.5 h of 18 extraction. SAS conditions applied for the encapsulation ranged from 110 to 170 19 bar at 35oC and 45oC, based on precipitation tests and on the phase behavior of 20 the system. The morphology of the particles obtained by SAS method and the 21 particle size were characterized by scanning electronic microscopy, being 22 considered as shapeless within the micrometric range. The interaction between the 23 polymer and the encapsulated extract was verified by differential scanning 24 calorimetry indicating that co-precipitated particles were produced. 25

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DOI: 10.5151/chemeng-cobeq2014-1936-16787-169934

Referências bibliográficas
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Como citar:

BENELLI, P.; COMIM, S. R. ROSSO; PEDROSA, R. C.; OLIVEIRA, J. V. de; FERREIRA, S. R. S.; "PARTICLE FORMATION OF Casearia sylvestris EXTRACT USING A SUPERCRITICAL ANTI-SOLVENT PROCESS", p. 14322-14329 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1936-16787-169934

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