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Chemat, Aziadé ; Touraud, Didier ; Müller, Rainer ; Kunz, Werner ; Fabiano-Tixier, Anne-Sylvie

Valorization of Coffee Silverskin Using Extraction Cycles and Water as a Solvent: Design of Process

Chemat, Aziadé, Touraud, Didier, Müller, Rainer , Kunz, Werner und Fabiano-Tixier, Anne-Sylvie (2024) Valorization of Coffee Silverskin Using Extraction Cycles and Water as a Solvent: Design of Process. Molecules 29 (6), S. 1318.

Veröffentlichungsdatum dieses Volltextes: 23 Apr 2024 09:37
Artikel
DOI zum Zitieren dieses Dokuments: 10.5283/epub.58146


Zusammenfassung

Coffee silverskin is a byproduct of the coffee industry, appearing in large quantities during the roasting step. In this work, a sober and simple water process is proposed, using extractions cycles, to produce valuable products including (a) an extract rich in caffeine, (b) possibly pure caffeine, and (c) insoluble fibers. The hypothetical number of necessary cycles was calculated and compared to ...

Coffee silverskin is a byproduct of the coffee industry, appearing in large quantities during the roasting step. In this work, a sober and simple water process is proposed, using extractions cycles, to produce valuable products including (a) an extract rich in caffeine, (b) possibly pure caffeine, and (c) insoluble fibers. The hypothetical number of necessary cycles was calculated and compared to the number of cycles used experimentally. Two types of cycles, with and without water compensation, were compared for their water consumption and the amount of caffeine extracted. The use of cycles, with the resulting product from a previous extraction as a solvent for fresh biomass, drove a significant rise in the content of caffeine determined by a UV–visible detector with a spectrophotometer and ultra-performance liquid chromatography (UPLC). After 11 extraction cycles with water compensation, we obtained an extract 4.5 times more concentrated in caffeine (4.25 mg/mL) than after a single extraction (1.03 mg/mL).



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Details

DokumentenartArtikel
Titel eines Journals oder einer ZeitschriftMolecules
Verlag:MDPI
Band:29
Nummer des Zeitschriftenheftes oder des Kapitels:6
Seitenbereich:S. 1318
Datum15 März 2024
InstitutionenChemie und Pharmazie > Institut für Physikalische und Theoretische Chemie
Identifikationsnummer
WertTyp
10.3390/molecules29061318DOI
Stichwörter / Keywordscoffee; silverskin; extraction; water; cycles; enrichment
Dewey-Dezimal-Klassifikation500 Naturwissenschaften und Mathematik > 540 Chemie
StatusVeröffentlicht
BegutachtetJa, diese Version wurde begutachtet
An der Universität Regensburg entstandenJa
URN der UB Regensburgurn:nbn:de:bvb:355-epub-581469
Dokumenten-ID58146

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