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

Paper ID Volume ID Publish Year Pages File Format Full-Text
19093 43045 2013 7 PDF Available
Title
Extraction of caffeine from natural matter using a bio-renewable agrochemical solvent
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.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (63 K)Download as PowerPoint slideHighlights► Ethyl lactate for natural matter decaffeination was studied for the first time. ► Accelerated solvent extraction was accomplished and different solvents were compared. ► High extraction yield and caffeine recovery were achieved using ethyl lactate. ► Low co-extraction of chlorogenic acids and coffee oil was observed.

Keywords
Coffee; Green tea; Caffeine; Ethyl lactate; Accelerated solvent extraction
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Extraction of caffeine from natural matter using a bio-renewable agrochemical solvent
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 91, Issue 4, October 2013, Pages 303–309
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us