• Title/Summary/Keyword: 유효성분(有效成分)

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Active Principle, p-Methoxycinnamic Acid, of Scrophulariae Radix I Identification of p-Methoxycinnamic Acid and its Antipyretic action. (현삼의 유효성분, p-Methoxycinnamic acid, 에 관한 연구 I p-Methoxycinnamic acid의 동정 및 그 해열작용)

  • 우종식
    • YAKHAK HOEJI
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    • v.7 no.2_3
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    • pp.55-57
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    • 1963

  • Antipyretic substance is isolated from roots of Scrophularia Oldhami which is used as antipyretic and anti-inflammatory drug. This substance is identified as p-methoxycinnamic acid which rarely occurs in plants.

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인삼가공품에 관한 특허조사

  • 김해중;조재선
    • Journal of Ginseng Research
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    • v.6 no.1
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    • pp.100-114
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    • 1982

  • 인삼은 수삼이나 백삼을 달여서 먹거나 쩌서 말린 홍삼제품으로 이용되어 왔으나 근래에는 유효성분을 알콜 등으로 추출한 엑기스제품이 여러형태로 이용되고 기호에 맞추어 복용하기 쉽고 휴대하기 편리한 제품 등이 개발 연구되고 있다. 가공제품에 대하여 출원된 특허를 1958년부터 1980년까지 한국, 일본, 미국등지에 공고된 인삼가공품에 관한 특허 87편을 유사제품유별로 정리 하였다.

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Monitoring on Chemical Properties of Bench Marked Upland Soils in Korea (우리나라 밭 토양(土壤) 화학적(化學的) 특성(特性))

  • Jung, Beung-Gan;Choi, Jeong-Weon;Yoon, Jung-Hui;Kim, Yoo-Hak;Yun, Eul-Soo
    • Korean Journal of Soil Science and Fertilizer
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    • v.34 no.5
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    • pp.326-332
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    • 2001

  • To investigate a fertility status of upland soil, the soil were sampled at 854 sites chosen in consideration of areal distribution percent on the basis of topography and were analyzed on pH, organic mater, available phosphorus ($P_2O_5$), exchangeable potassium and calcium and magnesium. The content of soil chemical properties showed pH 5.6, organic mater $24g\;kg^{-1}$, available $P_2O_5$ $577mg\;kg^{-1}$, exchangeable potassium and calcium and magnesium were 0.85, 4.5, $1.4cmol^+kg^{-1}$, respectively. The distribution percent of soil samples within the optimum range for cropping were 13.4% for pH, 46.7% for organic matter. 27.4% for available $P_2O_5$, 10.7, 15.8, 18.3% for exchangeable potassium and calcium and magnesium, respectively. In chronological changes of soil properties, exchangeable calcium and magnesium were ignorable ; pH was slightly decreased ; organic matter was slightly increased ; available $P_2O_5$ and exchangeable potassium were greatly increased.

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Identification of Active Agents for Reductive Dechlorination Reactions in Cement/Fe (II) Systems by Using Cement Components (시멘트 구성성분을 이용한 시멘트/Fe(II)의 TCE 환원성 탈염소화 반응의 유효반응 성분 규명)

  • Jeong, Yu-Yeon;Kim, Hong-Seok;Hwang, In-Seong
    • Journal of Soil and Groundwater Environment
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    • v.13 no.1
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    • pp.92-100
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    • 2008

  • Experimental studies were conducted to identify the active agents for reductive dechlorination of TCE in cement/Fe(II) systems focusing on cement components such as CaO, $Fe_2O_3$, and $Al_2O_3$. A hematite that was used to simulate an $Fe_2O_3$ component in cement was found to have degradation efficiencies (k = 0.641 $day^{-1}$) equivalent to that of cement/Fe(II) systems in the presence of CaO/Fe(II), only when it contained an aluminum impurity$(Al_2O_3)$. When the effect of $Al_2O_3$ content of hematite/CaO/$Al_2O_3$/Fe(II) system was tested, the mole ratio of $Al_2O_3$ to CaO affected the rate of TCE degradation with an optimum ratio around 1 : 10 that resulted in a rate constant of 0.895 $day^{-1}$. In the SEM images of hematite/CaO/$Al_2O_3$/Fe(II) systems, acicular crystals were also found that were also observed in cement/Fe(II) systems. Thus it was suspected that these crystals were reactive reductants and that they might be goethite or ettringite that are known to have acicular structures. An EDS element map analysis revealed that these crystals were not goethite crystals. A subsequent experiment that tested reactivities of compounds formed during the ettringite synthesis showed that ettringite and minerals associated with ettringite formation are not reactive reductants. These observations conclude that a mineral containing CaO and $Al_2O_3$ with a acicular structure could be a major reactive reductant of cement/Fe(II) systems.

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Effects of Gamma Irradiation on Microbial Decontamination, Extraction Yields and Physiological Effectiveness of Korean Medicinal Plants (한방약재의 오염 미생물 살균, 추출율 및 생리효능에 대한 감마선 조사의 영향)

  • Yook, Hong-Sun;Cha, Bo-Sook;Jo, Sung-Kee;Byun, Myung-Woo
    • Korean Journal of Food Science and Technology
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    • v.30 no.3
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    • pp.581-589
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    • 1998

  • Effects of gamma irradiation on hygienic quality, extraction yields and physiological effectiveness in twenty-one kinds of Korean medicinal plants were investigated. Gamma irradiation at $5{\sim}10\;kGy$ eliminated the microorganisms contaminated in Korean medicinal plants. The total extraction yield in fifteen kinds of Korean medicinal plants increased by $5{\sim}25%$ at 10 kGy gamma irradiation. The physiological effectiveness such as antioxidation, anticomplement functions, nitrite scavenging and electron donating abilities of medicinal plants exposed to 10 kGy gamma irradiation were not different from that of the nonirradiated control.

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