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Appraisal of the suitability of two-stage extraction process by combining compressed fluid technologies of polar lipid fractions from chia seed
- Source :
- Biblos-e Archivo: Repositorio Institucional de la UAM, Universidad Autónoma de Madrid, Biblos-e Archivo. Repositorio Institucional de la UAM, Consejo Superior de Investigaciones Científicas (CSIC), Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2020
- Publisher :
- Elsevier, 2020.
-
Abstract
- Although triacylglycerols (TAG) are the major constituents of chia oil, it also contains minor lipid fractions that include phospholipids (PL) among other desirable components. Its amphiphilic character and excellent biocompatibility make PL appropriate for numerous applications with technological and nutritional significanceand potential health benefits. Given the difficulties entailed by the PL isolation, the efficiency for extracting such compounds using two environmental friendly techniques, pressurized liquid extraction (PLE) and supercritical fluid extraction (SFE) was evaluated. By using PLE with food-grade ethanol (EtOH), an oil recovery close to 100% was achieved in just 10 min. This oil extract was particularly rich in α-linolenic acid (ALA; 70%) as compared to the oil extracted by SFE (56%). In the case of SFE, the oil recovery was only 87% but increased to 99% when ethanol was added to CO2. However the use of co-solvent did not affect the fatty acid profile of the supercritical extracts or their TAG composition, where the high molecular weight TAG species were the predominant in all cases. With the exception of SFE without co-solvent, all methods applied were capable of extracting the PL fraction, although the content and distribution of the individual components present in this fraction differed markedly depending on the extraction conditions used. In this context, the use of a sequential extraction process, combining SFE and PLE was particularly interesting. The re-extraction by PLE of the chia cake, previously defatted by SFE, allowed to obtain an oil extract highly enriched in PLs, whose content exceeded 16% and with a higher PL species than the rest of the oil extracts.<br />This study was supported in part by grants from the Spanish Ministry of Science, Innovation and Universities, Spain (AGL2017-87884 MINECO/AEI/FEDER, UE); by the Comunidad de Madrid through the B Programa de Actividades en Tecnologías, Spain (ALIBIRD-CM S2013/ABI-2728).
- Subjects :
- 030309 nutrition & dietetics
Triacylglycerol composition
Panax notoginseng
Context (language use)
Fraction (chemistry)
Salvia miltiorrhiza
Chemical Fractionation
Pressurized liquid extraction (PLE)
FAME composition
Chia seeds
03 medical and health sciences
chemistry.chemical_compound
0404 agricultural biotechnology
Pressure
Plant Oils
Salvia
Triglycerides
Phospholipids
chemistry.chemical_classification
0303 health sciences
Biological Products
Ethanol
Chromatography
Camphanes
Plant Extracts
Extraction (chemistry)
Fatty Acids
Supercritical fluid extraction
Fatty acid
Chia seed
Chromatography, Supercritical Fluid
04 agricultural and veterinary sciences
Química
040401 food science
Supercritical fluid
chemistry
Seeds
Solvents
Composition (visual arts)
Supercritical fluid extraction (SFE)
Food Science
Drugs, Chinese Herbal
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Biblos-e Archivo: Repositorio Institucional de la UAM, Universidad Autónoma de Madrid, Biblos-e Archivo. Repositorio Institucional de la UAM, Consejo Superior de Investigaciones Científicas (CSIC), Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....d9ce39f9b9437856414b719265b80523