| Literature DB >> 26041217 |
Ana Beatriz Zanqui1, Damila Rodrigues de Morais2, Claudia Marques da Silva1, Jandyson Machado Santos2, Sandra Terezinha Marques Gomes1, Jesuí Vergílio Visentainer1, Marcos Nogueira Eberlin2, Lúcio Cardozo-Filho3, Makoto Matsushita4.
Abstract
Flaxseed (Linum usitatissimum L.) oil was obtained via subcritical n-propane fluid extraction (SubFE) under different temperatures and pressures with an average yield of 28% and its composition, purity and oxidative stability were compared to oils obtained via conventional solvent extraction methods (SEMs). When the oxidative stability was measured by differential scanning calorimetry, the oil was found to be up to 5 times more resistant to lipid oxidation as compared to the SEM oils. Direct infusion electrospray ionization mass spectrometry (ESI-MS) analysis showed characteristic and similar TAG profiles for SubFE and SEMs oils but higher purity for the SubFE oil. The flaxseed oil content of β-tocopherol, campesterol, stigmasterol and sitosterol were quantified via GC-MS. SubFE showed to be a promising alternative to conventional SEM since SubFE provides an oil with higher purity and higher oxidation stability and with comparable levels of biologically active components.Entities:
Keywords: Campesterol (PubChem CID: 173183; Flaxseed oil; Linoleic acid (PubChem CID: 5280450; Phytosterol; Sitosterol (PubChem CID: 222284); Stigmasterol (PubChem CID: 5280794); Subcritical fluid extraction; Tocopherol; α-Linolenic acid (PubChem CID: 5280934); β-Tocopherol (PubChem CID: 6857447)
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Year: 2015 PMID： 26041217 DOI： 10.1016/j.foodchem.2015.05.033
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514