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Supercritical fluid extraction for enhancing polyphenolic compounds production from olive waste extracts
Journal of chemical technology and biotechnology (1986), 2020-02, Vol.95 (2), p.356-362
Caballero, Ashley S
Romero‐García, Juan M
Castro, Eulogio
Cardona, Carlos A
2020
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Caballero, Ashley S
Romero‐García, Juan M
Castro, Eulogio
Cardona, Carlos A
Titel
Supercritical fluid extraction for enhancing polyphenolic compounds production from olive waste extracts
Ist Teil von
Journal of chemical technology and biotechnology (1986), 2020-02, Vol.95 (2), p.356-362
Ort / Verlag
Chichester, UK: John Wiley & Sons, Ltd
Erscheinungsjahr
2020
Quelle
Wiley Online Library Journals【Remote access available】
Beschreibungen/Notizen
BACKGROUND A number of residues are produced during the olive oil extraction process, such as crushed pits, olive leaves, pomace and exhaust olive pomace. In addition, pruning of olive trees results in a huge amount of biomass. All of these lignocellulosic materials constitute a source of energy and chemicals that can be used as raw materials in biorefineries. Among them, antioxidants are of particular interest due to their potential applications in pharmaceutical and food industry. RESULTS Supercritical fluid extraction (SFE) was applied on three different olive residues – pruning biomass, leaves and exhaust pomace. In this, 60% ethanol was used as cosolvent at three different pressure levels, 200, 250 and 300 bar. The best conditions for each residue were determined and compared with conventional extraction. Results show that 300 bar was the best pressure for SFE in terms of antioxidant activity of the extracts. The main polyphenolic compounds also were identified, among which hydroxytyrosol, chlorogenic acid, caffeic acid and ferulic acid were present. CONCLUSION SFE at 300 bar proved to be the best option for obtaining a high‐activity antioxidant extract from olive leaves, exhaust pomace and pruning biomass, with hydroxytyrosol the prominent compound detected. This procedure could be integrated in a biorefinery based on olive‐derived biomass. © 2018 Society of Chemical Industry
Sprache
Englisch
Identifikatoren
ISSN: 0268-2575
eISSN: 1097-4660
DOI: 10.1002/jctb.5907
Titel-ID: cdi_proquest_journals_2333785170
Format
–
Schlagworte
Antioxidants
,
Biomass
,
Biorefineries
,
Caffeic acid
,
Chlorogenic acid
,
Ethanol
,
Ferulic acid
,
Food industry
,
Food processing industry
,
Fruit trees
,
Leaves
,
Lignocellulose
,
Oils & fats
,
olive
,
Olive oil
,
Organic chemistry
,
Polyphenols
,
Pressure
,
Pruning
,
Raw materials
,
Refining
,
Residues
,
supercritical fluid extraction
,
Supercritical fluids
,
wastes
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