کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
19093 43045 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Extraction of caffeine from natural matter using a bio-renewable agrochemical solvent
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Extraction of caffeine from natural matter using a bio-renewable agrochemical solvent
چکیده انگلیسی

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.

Figure optionsDownload 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.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 91, Issue 4, October 2013, Pages 303–309
نویسندگان
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