Extraction of caffeine from natural matter using a bio-renewable agrochemical solvent
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. © 2012 The Institution of Chemical Engineers.
| Main Authors: | , , , , , |
|---|---|
| Other Authors: | |
| Format: | artículo biblioteca |
| Published: |
Elsevier
2013
|
| Subjects: | Green tea, Caffeine, Ethyl lactate, Accelerated solvent extraction, Coffees, |
| Online Access: | http://hdl.handle.net/10261/99989 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100003339 http://dx.doi.org/10.13039/501100000780 http://dx.doi.org/10.13039/501100001871 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|