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

인공재배 상황버섯 액상추출차 제조를 위한 최적추출 및 청징화 조건

  • Published : 2002.08.01

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.

인공재배한 상황버섯 원료의 영양성분은 탄수화물의 함량이 80.9%로 가장 많았고, Na, K, Ca, Fe의 무기질 4종도 비교적 풍부하게 함유되어 있었으나 비타민 B$_1$, B$_2$, C와 같은 수용성비타민은 검출되지 않았다. 가장 바람직한 추출조건은 5% 농도의 원료를 10$0^{\circ}C$의 온도에서 3시간 이내에 추출하는 것으로 나타났다. 추출물의 청정화를 위해서 depth filter pad를 이용한 여과법, 원심분리법 및 여과조제 첨가법 등을 적용한 결과 원심분리와depth filter pad를 이용했을 때 가장 우수한 청정효과를 나타내었고, 7주간 항온저장실험으로 탁도를 비교한 결과에서도 청정도의 변화가 거의 없었다. 결론적으로 상황버섯 추출물은 6,000 rpm이상에서의 원심분리나 8$\mu\textrm{m}$ 이하의 pore size를 지닌 filter system을 이용할 때 청정도를 가장 효과적으로 유지할 수 있었다

Keywords

References

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