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Microwave-assisted extraction of tea polyphenols and tea caffeine from green tea leaves
Open accessAbstract
A microwave-assisted extraction (MAE) method is presented for the extraction of tea polyphenols (TP) and tea caffeine from green tea leaves. Various experimental conditions. such as ethanol concentration (0 - 100%, v/v), MAE time (0.5 - 8 min), liquid/solid ratio (10:1 - 25:1 ml g(-1)), pre-leaching time (0-90 min) before MAE and different solvents for the MAE procedure were investigated to optimize the extraction, The extraction of tea polyphenols and tea caffeine with MAE for 4 min (30 and 4%) were higher than those of extraction at room temperature for 20 h. ultrasonic extraction for 90 min and heat reflux extraction for 45 min (28 and 3.6%), respectively. From the points of extraction time, the extraction efficiency and the percentages of tea polyphenols or tea caffeine in extracts, MAE was more effective than the conventional extraction methods studied. (C) 2002 Elsevier Science B.V. All rights reserved.
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Cites
Extraction and colorimetric determination of azadirachtin-related limonoids in neem seed kernel
Dai, J., Yaylayan, V. A., Raghavan, G. S. V., & Parè, J. R. (1999) · Journal of Agricultural and Food Chemistry · doi:10.1021/jf990227h · Cited by 68
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Recent advances in extraction of nutraceuticals from plants
Wang, L., & Weller, C. L. (2006) · Trends in Food Science & Technology · doi:10.1016/j.tifs.2005.12.004 · Cited by 2,046
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Ameer, K., Shahbaz, H. M., & Kwon, J. (2017) · Comprehensive Reviews in Food Science and Food Safety · doi:10.1111/1541-4337.12253 · Cited by 810
Microwave-assisted extractions of active ingredients from plants
Chan, C.-H., Yusoff, R., Ngoh, G.-C., & Kung, F. W.-L. (2011) · Journal of Chromatography A · doi:10.1016/j.chroma.2011.07.040 · Cited by 687
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Metadata
- Authors
- Pan, X., Niu, G., & Liu, H.
- Venue
- Chemical Engineering and Processing: Process Intensification
- Publisher
- Elsevier BV
- Published
- 2003-02
- Volume
- 42
- Issue
- 2
- Pages
- 129-133
- ISSN
- 0255-2701 (ISSN-L)
- OpenAlex
- W1999627641
- Cited by
- 566
- References
- 1
- FWCI
- 6.44
- Type
- journal article
- Language
- en
- Open access
- green
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- Pan, X., Niu, G., & Liu, H. (2003). Microwave-assisted extraction of tea polyphenols and tea caffeine from green tea leaves. Chemical Engineering and Processing: Process Intensification. https://doi.org/10.1016/s0255-2701(02)00037-5
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