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Influences of mineral contents in decoction water on the extraction efficiency of bioactive compounds from Eucommiae Cortex  

Park, Jung Kean (College of Pharmacy, Chungnam National University)
Kim, Tae Jin (Korea United Pharm Inc.)
Kim, Kyung Tae (College of Pharmacy, Chungnam National University)
Lee, Eunsil (College of Pharmacy, Chungnam National University)
Kim, Dong Hee (College of Korean Medicine, Daejeon University)
Hwang, Gwi Seo (College of Korean Medicine, Gachon University)
Kang, Jong Seong (College of Pharmacy, Chungnam National University)
Publication Information
Journal of Society of Preventive Korean Medicine / v.17, no.3, 2013 , pp. 177-185 More about this Journal
Abstract
Objective : Eucommiae Cortex is bark of Eucommia ulmoides Oliver, a deciduous tree native to China. Today, teas or herbal drugs made from E. ulmoides leaves are widely consumed as a healthy food especially in Eastern Asia including Japan, China and Korea. This study was aimed to verify the extraction efficiency of bioactive compounds from Eucommiae Cortex depending on characteristics of decoction water. Method : Six types of decoction water with various origin were prepared and the contents of minerals in water were analyzed by ICP-AES and ICP-MS. The contents of extracted bioactive compounds were analyzed by HPLC and the relationship between mineral contents and extracted bioactive compounds in the decoction water were analysed by multiple factor analysis. The decoction waters could be classified in three groups by hierarchical cluster analysis. Result : Extracted amounts of compounds in Eucommiae Cortex showed a positive relationship with Na, Si, K concentration in decoction water, while a negative relationship with Ca, Mg concentration. Conclusion : The study proved that the minerals in water influenced the extraction efficiency of bioactive compounds from Eucommiae Cortex.
Keywords
Eucommiae Cortex; mineral content; cluster analysis; multiple factor analysis; decoction water;
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