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Response surface methodology to optimize supercritical carbon dioxide/co-solvent extraction of brown onion skin by-product as source of nutraceutical compounds
- Source :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2018
-
Abstract
- Food industry produces a large amount of onion wastes. Due to the high amount of bioactive compounds in onion by-products an idea for their reuse, could be use them as source of high-value functional and health ingredients. In this study, outer dry layers of coppery onion “Ramata di Montoro” were used as source of bioactive compounds. Firstly, the chemical profile of secondary metabolites of exhaustive extract, obtained by ultrasound assisted extraction was established by UHPLC-UV-HRMS/MS analysis. Subsequently, the supercritical fluid extraction was used as alternative and green method to recover flavonoids from onion skin. Main parameters such as pressure, temperature and composition of solvent modifier were optimized in order to improve the extraction efficiency of SFE technique, by using a response surface Box–Behnken design.
- Subjects :
- Recovery bioactive compound
Food chemistry
01 natural sciences
Supercritical fluid extraction
Food by-product
Analytical Chemistry
chemistry.chemical_compound
0404 agricultural biotechnology
Onions
Experimental design optimization
By-product
Quercetin derivative
DPPH and ABTS assay
Response surface methodology
Quercetin derivatives
Recovery bioactive compounds
Food by-products
Supercritical carbon dioxide
Chromatography
Plant Extracts
010401 analytical chemistry
Extraction (chemistry)
fungi
food and beverages
Chromatography, Supercritical Fluid
04 agricultural and veterinary sciences
General Medicine
Carbon Dioxide
040401 food science
0104 chemical sciences
DPPH and ABTS assays
Solvent
chemistry
Onion skin
Food Science
Dietary Supplements
Carbon dioxide
Solvents
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.doi.dedup.....82e27343a2a10c233053b9405336bb01