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Different extraction methods of biologically active components from propolis: a preliminary study

Different extraction methods of biologically active components from propolis: a preliminary study Background: Propolis is widely used in apitherapy, preparations, and food and beverage additives. Various extraction techniques were applied in the extraction of the biologically active constituents of poplar type propolis in order to compare their efficiency. The methods employed were: traditional maceration extraction, ultrasound extraction (UE), and microwave assisted extraction (MAE). Results: The total amounts of extracted phenolics and flavonoids were determined, and the effectiveness of the methods compared. MAE was very rapid but led to the extraction of a large amount of non-phenolic and non-flavonoid material. UE gave the highest percentage of extracted phenolics. Conclusion: Compared to the maceration extraction, MAE and UE methods provided high extraction yield, requiring short timeframes and less labour. UE was shown to be the most efficient method based on yield, extraction time and selectivity. among the most promising for the extraction of natural Background The use of propolis as a remedy has a long history [1]. In products [6,7]. MAE is the process of using microwave addition, preparations, as well as food and beverage addi- energy to heat solvents in contact with a sample in order tives containing propolis extracts can be found on the to partition some chemical components from the http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Chemistry Central Journal Springer Journals

Different extraction methods of biologically active components from propolis: a preliminary study

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Publisher
Springer Journals
Copyright
Copyright © 2007 by Trusheva et al
Subject
Chemistry; Chemistry/Food Science, general
eISSN
1752-153X
DOI
10.1186/1752-153X-1-13
pmid
17880743
Publisher site
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Abstract

Background: Propolis is widely used in apitherapy, preparations, and food and beverage additives. Various extraction techniques were applied in the extraction of the biologically active constituents of poplar type propolis in order to compare their efficiency. The methods employed were: traditional maceration extraction, ultrasound extraction (UE), and microwave assisted extraction (MAE). Results: The total amounts of extracted phenolics and flavonoids were determined, and the effectiveness of the methods compared. MAE was very rapid but led to the extraction of a large amount of non-phenolic and non-flavonoid material. UE gave the highest percentage of extracted phenolics. Conclusion: Compared to the maceration extraction, MAE and UE methods provided high extraction yield, requiring short timeframes and less labour. UE was shown to be the most efficient method based on yield, extraction time and selectivity. among the most promising for the extraction of natural Background The use of propolis as a remedy has a long history [1]. In products [6,7]. MAE is the process of using microwave addition, preparations, as well as food and beverage addi- energy to heat solvents in contact with a sample in order tives containing propolis extracts can be found on the to partition some chemical components from the

Journal

Chemistry Central Journal – Springer Journals

Published: Jun 7, 2007

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