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Chemcial Industry and Engineering 2010, Vol. 27 Issue (5) :415-419    DOI:
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Extraction of Total Flavonoids from Frutus aurantii immaturus by Pressurized Liquid Extraction
 ZHU  Qing-Shu, ZHAO  Wen-Ying, JIN  Qing, ZHANG  Dan-Dan, WEN  You-Ying
College of Chemical Engineering,Qingdao University of Science and Technology,Qingdao 266042,China

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Abstract The extraction process of flavonoids from Frutus aurantii immaturus using pressurized extraction(PE) was studied and compared with reflux extraction.Parameters affecting PE procedure such as the concentration of ethanol,solid-liquid ratio,temperature,pressure,time,and material size were discussed and optimized by orthogonal test.The results show that the optimized conditions are as follows: the extraction solvent is 40%(v /v)ethanol aqueous solution,the material size is 60 mesh,ratio of mass of raw material to volume of extraction solvent is 1�� 20,extraction temperature is 130 ��,extraction for 20 min under pressure of 500 kPa.The recovery of extraction could reach 4.16 �� with the extraction rate of 2.08 mg /(g·min).With reflux extraction under the same solid-liquid ratio of extraction solvent,the recovery of extraction is 3.44% with the extraction rate of 0.19 mg /(g·min).PE can obviously increase the recovery of extraction.
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ZHU Qing-Shu
ZHAO Wen-Ying
JIN Qing
ZHANG Dan-Dan
WEN You-Ying
Keywords�� Frutus aurantii immaturus   Flavonoids   pressurized extraction     
Cite this article:   
ZHU Qing-Shu, ZHAO Wen-Ying, JIN Qing, ZHANG Dan-Dan, WEN You-Ying.Extraction of Total Flavonoids from Frutus aurantii immaturus by Pressurized Liquid Extraction[J]  Chemcial Industry and Engineering, 2010,V27(5): 415-419
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