Improving the Recovery of Phenolic Compounds from Spent Coffee Grounds (SCG) by Environmentally Friendly Extraction Techniques

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dc.authoridOztop, Mecit Halil/0000-0001-6414-8942
dc.authoridokur, ilhami/0000-0002-2541-7123
dc.authoridSezer, Purlen/0000-0002-6211-8325
dc.authoridAlpas, Hami/0000-0002-7683-8796
dc.authoridSoyler, Betul/0000-0003-4655-3113
dc.contributor.authorOkur, Ilhami
dc.contributor.authorSoyler, Betul
dc.contributor.authorSezer, Purlen
dc.contributor.authorOztop, Mecit Halil
dc.contributor.authorAlpas, Hami
dc.date.accessioned2024-11-07T13:32:35Z
dc.date.available2024-11-07T13:32:35Z
dc.date.issued2021
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractThe aim of this study was to investigate and compare the effects of different extraction techniques (high hydrostatic pressure-assisted extraction (HHPE), ultrasound-assisted extraction (UAE), and classical solvent extraction (CSE)) on phenolic compounds from spent coffee grounds (SCG). Different HHPE parameters (300, 400 and 500 MPa at 25 degrees C for 5, 10 and 15 min) and UAE parameters (40%, 50%, and 60% amplitude at 25 degrees C for 5, 10 and 15 min) were used. These techniques were compared with CSE (at 50 degrees C for 30 min) according to total phenolic content (TPC), antioxidant activity (AA), high-performance liquid chromatography (HPLC), scanning electron microscopy (SEM), and infrared (IR) spectroscopy. The results showed that eco-friendly techniques increased the TPC and AA compared to CSE and morphological changes were verified by SEM results. Furthermore, chlorogenic and caffeic acid were also quantified by using HPLC. Chlorogenic acid was found as the main phenolic compound in spent coffee grounds (SCG). The highest chlorogenic acid was detected as 85.0 +/- 0.6 mg/kg FW with UAE at 60% amplitude for 15 min. In brief, for the extraction of phenolic compounds from waste SCG eco-friendly techniques such as HHPE and/or UAE were more convenient than CSE.
dc.identifier.doi10.3390/molecules26030613
dc.identifier.issn1420-3049
dc.identifier.issue3
dc.identifier.pmid33503910
dc.identifier.scopus2-s2.0-85100653808
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.3390/molecules26030613
dc.identifier.urihttps://hdl.handle.net/11480/15500
dc.identifier.volume26
dc.identifier.wosWOS:000615462200001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherMdpi
dc.relation.ispartofMolecules
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20241106
dc.subjectspent coffee grounds (SCG)
dc.subjectphenolic compounds
dc.subjecthigh hydrostatic pressure-assisted extraction (HHPE)
dc.subjectultrasound-assisted extraction (UAE)
dc.titleImproving the Recovery of Phenolic Compounds from Spent Coffee Grounds (SCG) by Environmentally Friendly Extraction Techniques
dc.typeArticle

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