Concentration of stigmasterol, β-sitosterol and squalene from passion fruit (Passiflora edulis Sims.) by-products by supercritical CO2 adsorption in zeolite 13-X

Phytosterols and squalene, widely applied in pharmaceutical and food industries, were extracted and concentrated from passion fruit by-products (PFBP). A supercritical extraction using CO2 (SFE) was performed for PFBP, and the obtained extract underwent supercritical fractionation (SFA) (inlet at 35 MPa, 50–70 ℃) in a column packed with zeolite 13-X (5–15 g). The extraction and fractionation yields were measured, whereas the composition of the PFBP extract and their fractions was assessed by gas chromatography-mass spectrometry (GC-MS). Fractionated extract recovered presented different trends depending on temperature and zeolite mass combinations, and the highest recovery (approximately 95%) was achieved at 50 ºC with 15 g of adsorbent. At the same SFA conditions, the concentration of squalene, β-sitosterol and stigmasterol was twice that obtained in PFBP extract. Finally, SFA proved to be a clean and effective technique to concentrate squalene and phytosterols from PFBP, which should be extended to other food residues.

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Bibliographic Details
Main Authors: Santos, Luana Cristina dos, Broco e Silva, Renata G., Scopel, Eupidio, Hatami, Tahmasb, Rezende, Camila A., Martínez, Julian
Other Authors: Sao Paulo Research Foundation
Format: artículo biblioteca
Language:English
Published: Elsevier 2024
Subjects:P. edulis by-products, Supercritical fractionation, Zeolite, Phytosterols,
Online Access:http://hdl.handle.net/10261/358834
http://dx.doi.org/10.13039/501100003593
http://dx.doi.org/10.13039/501100002322
http://dx.doi.org/10.13039/501100001807
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