A comparative study of solvent and supercritical CO<sub>2</sub> extraction of <em>Simarouba gluaca</em> seed oil

B. Anjaneyulu; S. Satyannarayana; Sanjit Kanjilal; V. Siddaiah; K. N. Prasanna Rani

doi:10.3989/gya.0214171

Authors

B. Anjaneyulu Centre for Lipid Research, CSIR - Indian Institute of Chemical Technology https://orcid.org/0000-0001-6083-331X
S. Satyannarayana Centre for Lipid Research, CSIR - Indian Institute of Chemical Technology https://orcid.org/0000-0002-7269-6938
Sanjit Kanjilal Centre for Lipid Research, CSIR - Indian Institute of Chemical Technology https://orcid.org/0000-0003-1570-410X
V. Siddaiah Department of Organic Chemistry, Andhra University https://orcid.org/0000-0002-7190-7932
K. N. Prasanna Rani Centre for Lipid Research, CSIR - Indian Institute of Chemical Technology https://orcid.org/0000-0001-9222-3743

DOI:

https://doi.org/10.3989/gya.0214171

Keywords:

Extraction, Physico-chemical Characterizations, Simarouba gluaca seeds, Supercritical CO2

Abstract

In the present study, the supercritical carbon dioxide (CO₂) extraction of oil from Simarouba gluaca seeds was carried out at varying conditions of pressure (300–500 bar), temperature (50–70 °C) and CO₂ flow rate (10–30 g·min^-1). The extraction condition for maximum oil yield was obtained at 500 bar pressure, 70 °C and at 30 g·min^-1 flow rate of CO₂. The extracted oil was analyzed thoroughly for physico-chemical properties and compared with those of conventional solvent extracted oil. An interesting observation is a significant reduction in the phosphorus content of the oil (8.4 mg·kg^-1) extracted using supercritical CO₂ compared to the phosphorous content of the solvent extracted oil (97 mg·kg^-1). Moreover, the content of total tocopherols in supercritically extracted oil (135.6 mg·kg^-1) was found to be higher than the solvent extracted oil (111 mg·kg^-1). The rest of the physico-chemical properties of the two differently extracted oils matched well with each other. The results indicated the possible benefits of supercritical CO₂ extraction over solvent extraction of Simarouba gluaca seed oil.

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