Extraction of caffeine from natural matter using a bio-renewable agrochemical solvent

Villanueva Bermejoa, David and Luna, Pilar and Manic, Marina and Najdanovic-Visak, Vesna and Reglero, Guillermo and Fornari, Tiziana (2013) Extraction of caffeine from natural matter using a bio-renewable agrochemical solvent. Food and Bioproducts Processing, 91 (4). pp. 303-309. ISSN 0960-3085

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Abstract

This paper reports experimental data on the pressurized liquid extraction of caffeine from green coffee beans and green tea leaves using ethyl lactate (ethyl 2-hydroxy-propanoate). This solvent is a new bio-renewable agrochemical solvent, naturally produced by fermentation from corn derived feedstock, which has been recently considered as a very suitable and environmental benign solvent for food industrial applications. Static extraction assays (one step during 10 min) were carried out in an Accelerated solvent extraction (ASE) system at three different extraction temperatures, namely 100, 150 and 200 °C. Extraction yield and caffeine recovery were determined and compared with those obtained when using other liquid solvents, such as ethyl acetate or ethanol. High recovery of caffeine (≈60%) was found in the extracts produced using ethyl lactate, which demonstrates the potential use of this green solvent for the extraction of caffeine from different vegetable sources.

Item Type:
Journal Article
Journal or Publication Title:
Food and Bioproducts Processing
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1300/1305
Subjects:
ID Code:
63079
Deposited By:
Deposited On:
21 Mar 2013 16:50
Refereed?:
Yes
Published?:
Published
Last Modified:
20 Oct 2020 02:22