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http://dx.doi.org/10.3746/jkfn.2002.31.4.636

Optimization of Extraction and Clarification Condition for Preparation of Liquid Extract Tea from Artificially Cultivated Phellinus linteus  

Song, Hyo-Nam (Dept. of Oriental Medical Food and Nutrition, Semyung University)
Oh, Se-Wook (Korea Food Research Institute)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.31, no.4, 2002 , pp. 636-641 More about this Journal
Abstract
Optimum extraction condition and clarification process were investigated to manufacture liquid extract tea using Phellinus linteus. Carbohydrates content in the raw Phellinus linteus was 80.9%. Major minerals were K, Ca, Fe and Na, but vitamin B$_1$, B$_2$, and C were not detected. The best extraction condition was 5% raw material at 10$0^{\circ}C$ within 3 hr. To clarify the extract, three methods of filtration with depth filter pad, centrifugation and addition of several filter aids were studied. Filtration with depth filter pad and centrifugation were highly effective on the clarification and the changes in the turbidity for 7 weeks at 4$0^{\circ}C$ were not occurred. The optimum clarification condition was centrifugation above 6,000 rpm or filtration with 8 ${\mu}{\textrm}{m}$ depth filter pad.
Keywords
Phellinus linteus; clarification; centrifugation; depth filter pad; filter aids;
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Times Cited By KSCI : 2  (Citation Analysis)
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