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http://dx.doi.org/10.3746/jkfn.2006.35.1.001

Establishment of Microwave-Assisted Extraction Conditions for Antioxidative Extracts from Pleurotus eryngii  

Oh, Hyun-In (Korea Food Research Institute)
Lim, Tae-Soo (Korea Food Research Institute)
Lee, Gee-Dong (Dept. of Fermentation and Health Food, Kyongbuk College of Science/DG-Traditional Bio-materials Industry Center)
Kim, Hyun-Ku (Korea Food Research Institute)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.35, no.1, 2006 , pp. 1-6 More about this Journal
Abstract
Through the application of a microwave-assisted extraction, the aim of study was to investigate the extraction conditions for the total yield, electron donating ability, total polyphenol contents and nitrite scavenging effect from Pleurotus eryngii. This experiment was conducted under the following extraction conditions: the microwave power (60, 90, 120 W), sample to solvent ratio (1:50, 1:20, 1:10), extraction time (1, 5, 10, 15 mins), and extractant like water, $50\%$ EtOH and $99\%$ EtOH. During the increase of microwave power ranging from 60 to 120 W, the maximized effective components were obtained when the microwave power was set at 60 W. By decreasing the ratio down to 1:10 (g/mL), the extraction of effective components but not total yield was the highest at 1:10 (g/mL). As going up to 15 min, the maximum extraction of effective components was achieved at 1 min for the extraction time and was little affected at over 5 min. In conclusion, the most appropriate conditions for the extraction of effective compounds from Pleurotus eryngii were as follows: the microwave power at 60 W, 1:10 of the sample to solvent ratio, extraction time at 1 min and water as the extractant.
Keywords
Pleurotus eryngii; microwave-assisted extraction; polyphenol content; electron donating ability; nitrite scavenging ability;
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Times Cited By KSCI : 3  (Citation Analysis)
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