• Title/Summary/Keyword: crude extracts

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A study on the Problems and Improvement Proposals on Legal Definitions in Regards to Herbs, Herbal Drugs, Crude Drugs and Natural Products (한약, 한약재, 생약과 천연물의 법규상 개념 및 정의의 문제점과 개선안)

  • Eom, Seok-Ki
    • Journal of Korean Medical classics
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    • v.27 no.2
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    • pp.77-95
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    • 2014
  • Objectives : This study was to analyze the definitions of herbs, herbal drugs, crude drugs and natural products in the relevant laws and regulations, understand the related problems, and propose directions for improvement. Methods : I analyzed the legal definitions in respect of herbs, herbal drugs, crude drugs and natural products in relevant laws and regulations since 1945, explained the problems, and suggested the solution-considering the academic stance of Traditional Korean Medicine and the dualistic medical and pharmaceutical system. Results : Herbs are defined as "refined things that are cut and dried in their most original state". The definition of crude drugs includes herbs and the "cell contents, secretion, extracts, minerals and other parts of animals and plants that are used medicinally". The concept of natural products is expanded to adding tissue cultures to the definition of crude drugs. Conclusions : The definition of herbs should at least include all products that are "processed, extracted and prepared" as well as contents that consist of various forms of hospital-prepared herbs. The term "herbal drug" corresponds to a traditional term of "drug", and this should be established as a concept to explain "drugs in raw materials that are used to prepare herbs and/or manufacture herbal medicine". The legal definition of herbs should include the concept of crude drugs. Herbal drug preparations and crude drugs should be included in the definition of herbal drugs.

Screening of ${\beta}$-Catenin/TCF Transcription Factor Inhibitors in Medicinal Herb Extracts

  • Choe, Ye-Dang;Na, Byung-Jo;Park, Se-Yeon
    • The Journal of Korean Medicine
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    • v.32 no.3
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    • pp.35-43
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    • 2011
  • Objectives: This study was performed to screen target-specific inhibitors of ${\beta}$-catenin/TCF signaling whose functional activation plays an important role in early events in carcinogenesis. Methods: To investigate the activation or suppression of ${\beta}$-catenin/TCF transcription, we established a transiently transfected cell line with a constitutively active ${\beta}$-catenin mutant gene whose product is not degraded. This cell line was also co-transfected with luciferase reporter gene constructs containing either an optimized (TOPflash) or mutant (FOPflash) TCF-binding element. We investigated cytotoxic effects using a 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium salt (MTS) assay. To find effective inhibitors of ${\beta}$-catenin/TCF signaling from medicinal herbs, the crude extracts of 99 types of medicinal herbs were screened using a luciferase assay system in HEK-293 and SH-SY5y cells. Results: At a concentration of $50{\mu}g$/ml, extracts of Angelica koreanae radix, Cannabis sativa semen, Ephedrae intermedia Schrenk radix, and Vitis rotundifolia fruit showed the following inhibitory effects on ${\beta}$-catenin/TCF signaling: $40{\pm}5.6%$, $23{\pm}6.1%$, $8{\pm}5.1%$, and $22{\pm}9.8%$ in ${\beta}$-catenin-activated HEK-293 cells and $9{\pm}4.7%$, $39{\pm}8.1%$, $39{\pm}6.4%$, and $42{\pm}10.1%$ in ${\beta}$-catenin-activated SH-SY5y cells, respectively. Crude extracts of E. radix were isolated by silica gel column chromatography, and two non-polar fractions of these extracts showed inhibitory effects on ${\beta}$-catenin/TCF signaling. Conclusions: In this study, we established a transiently transfected cell line as a screening system and found that various medicinal herb extracts had inhibitory effects on ${\beta}$signaling.

Anti-oxidization Effect of Extracts from Oriental Medicine and Cereal Medium Where Tricholoma matsutake Mycelia were Cultured

  • Kim, Hae-Ja;Lee, Ki-Nam
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.22 no.3
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    • pp.672-677
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    • 2008
  • In order to explore the anti-oxidization effect of oriental medicine and cereal medium(OCM) where Tricholoma matsutake mycelia were cultured, measurement of hot water extract and UMPM(extraction method using ultra sonic waves, micro waves, micro bubble) extract, the total polyphenol content of crude polysaccharide from each extract, SOD-like activity, electron donating ability(EDA), xanthine oxidase inhibitory activity, and tyrosinase inhibitory activity was conducted. The total polyphenol content of each extract was found to be 16.36% for hot water extract(HE) group and 15.73% for UMPM extract(UE) group and the amount of crude polysaccharide precipitated into ethanol of extracts was found to be 8.79% for UMPM ethanol extract(UEE) group and 6.48% for hot water ethanol extract(HEE) group. As a result of measurement of SOD-like activity by concentration of each extract, it was found to be 96.17% for UE group, 91.23% for HE group, 91.33% for UEE group, and 87.11% for HEE group at 20 mg/mL. In the case of EDA, it was found to be 47.55% for UE group, 44.93% for HE group, 25.38% for UEE group, and 18.36% for HEE group. And in the cases of the rates of xanthine oxidase inhibitory activity and tyrosinase inhibitory activity, as the concentration of each extract increased, the inhibition rate increased accordingly. As a result of comparison between hot water extract method and UMPM extract method using extracts obtained from oriental medicine compound medium where Tricholoma matsutake mycelia were cultured, all of the extracts were judged to have a high anti-oxidization effect. In particular, UMPM extracts were found to have higher polyphenol content, SOD-like activity, EDA, xanthine oxidase inhibitory activity and tyrosinase inhibitory activity compared to hot water extract method. In this regard, extracts obtained from OCM where Tricholoma matsutake mycelia were cultured are considered to have high availability as functional material when and if they are prepared using UMPM extract method.

Screening of Korean Marine Plants Extracts for Inhibitory Activity on Protein Tyrosine Phosphatase 1B

  • Lee, Hee-Jung;Kim, You-Ah;Lee, Jung-Im;Lee, Burm-Jong;Seo, Young-Wan
    • Journal of Applied Biological Chemistry
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    • v.50 no.2
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    • pp.74-77
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    • 2007
  • Crude extracts of 69 marine organisms (27 salt marsh plants and 42 seaweeds) were screened for the inhibitory activity against the protein tyrosine phosphatase 1B (PTP1) in vitro. The most active extracts were methanol extracts from Derbesia marina (80.6% in inhibitory activity) and Symphycladia latiscula (85.6%) at the concentration of $15{\mu}g/mL$. Methanol extracts of Codium adhaerens and Hisikia fuziformis were moderately inhibitory with 71.2 and 69.1% inhibition, respectively. It was peculiar that only the extracts from seaweeds show inhibitory activity where those from salt marsh plants do not show any significant effect.

Ginsenosides Content of The Manufactured Ginseng Radices Extracts

  • Ko, Sung-Kwon;Lee, Chung-Ryul;Choi, Yong-Eui;Im, Byung-Ok;Hwan, Sung-Jong;Chung, Sung-Hyun
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.367.3-368
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    • 2002
  • The ginsenosides content of ginseng radices extracts were investigated in the Food Code and the Shibata methods. Crude saponins and each ginsenosides content of the manufactured ginseng radix alba extracts were revealed to be higher than those of the manufactured ginseng radix rubra extracts. A large amount of a ginseng radix rubra specific component(ginsenoside Rg3) was shown in the manufactured ginseng radix rubra extracts. Also a large amoung of ginsenoside Rg3 was shown in the manufactured ginseng radix alba extracts. (omitted)

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Chemical Components and Physicochemical Properties of Precipitates in Red Ginseng Extracts Isolated by Centrifugation (홍삼 Ext중 원심력에 의하여 분리된 침전물의 화학조성과 물리화학적 특성)

  • 김나미;양재원
    • Journal of Ginseng Research
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    • v.18 no.2
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    • pp.122-127
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    • 1994
  • Red ginseng extracts accounted for the major precipitating material in red ginseng drink prepared with various components and pasteuralized at $80^{\circ}C$ for 30 min. Precipitates in red ginseng extracts isolated by centrifugation were investigated for its chemical components and physicochemical properties. Recovery of precipitates in red ginseng extracts was 1.59% on a dry weight basis. Precipitates were composed of starch (71.47%), crude protein (21.75%), pectin (1.70%), polyphenol (2.97%) and calcium (3.83 ppm) but ginsenosides were not present. Absorption peak at 285 nm which appeared in red ginseng extracts was absent in the precipitates. pH and Hunter L value of the precipitates decreased, while Hunter a and b values increased in contrast to red ginseng extracts. Precipitates were solubilized to some extent in polar solvent. The shape of precipitate particle was round, sciral or irregular square. Particle size of precipitates varied from 0.17 $\mu\textrm{m}$ to 41.3 $\mu\textrm{m}$ in length.

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Antioxidative Effect of Cholorophylls and Carotenoids in Mustard Leaf Kimchi Activity (갓김치 Chlorophylls 및 Carotenoids의 항산화 효과)

  • 송은승;전영수;최홍식
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.3
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    • pp.421-425
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    • 2001
  • Antioxidative effects of crude chlorophylls and carotenoids extracts from mustard leaf kimchi on the lipid peroxidation in rat liver homogenate, egg phosphatidyl choline (EPC) liposome and superoxide anion radical were examined. The extracts were found to inhibit the increase of the thiobarbituric acid (TBA) value and show the effect of antioxidative activity on the liposomal phospholipid membrane. The oxidation index of EPC liposome was markedly decreased in the prescence of the extracts. The antioxidative activity of the extracts from mustard leaf kimchi was not related with fermentation period of the kimchi. The extracts from mustard leaf showed the similar antioxidative activity of $\alpha$-tocopherol within in the given level of addition. However, the oxidation index. When the effect of the extracts from mustard leaf kimchi on free radical scavenging was observed by the determination of the superoxide anion radical scavenging activity, it had similar value to that of $\alpha$-tocopherol.

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Properties of Cheonggukjang Tablet Prepared with Medicinal Herb Extracts (생약초(표고버섯, 더덕, 어성초) 추출물을 첨가한 청국장환의 특성)

  • Park, Jung-Suk;Na, Hwan-Sik
    • Food Science and Preservation
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    • v.18 no.2
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    • pp.149-155
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    • 2011
  • Cheonggukjang tablet was prepared by addition of medicinal herb extracts (from Lentinus edodes, Codonopsis lanceolata, or Houttuynia cordata Thunb.) to improve its quality and functional properties. Lightness and yellowness (measured using Hunter's color values) were generally increased with increasing amount of medicinal herb extracts, whereas pH decreased. In proximate composition, the levels of crude protein, lipid and fiber levels of Cheonggukjang tablet decreased with increasing amount of added medicinal herb extracts, whereas moisture and crude ash were increased. The major amino acid of Cheonggukjang tablet were glutamic acid, aspartic acid, leucine and the principal fatty acids of Cheonggukjang tablet were linolenic acid, linoleic acid and palmitic acid, respectively. Hardness levels of Cheonggukjang tablet decreased with increasing amounts of added medicinal herb extracts. The Cheonggukjang tablet added with medicinal herb extracts increased both crude saponin and quercetin contents. Sensory score of Cheonggukjang tablet containing 20% (w/v) medicinal herb extracts were optimal in terms of both quality characteristics and sensory evaluation.

Studies on the Preparation of Pheasant Meat Extracts by Protease (효소에 의한 꿩고기 가수분해물의 제조)

  • Jeong, Jae-Hong;Kim, Ki-Jun;Lee, Gyu-Hee;Lee, Seuk-Keun;Oh, Man-Jin
    • Korean Journal of Agricultural Science
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    • v.25 no.1
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    • pp.107-117
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    • 1998
  • Ths studies was carried out to investigate the processing possibility of pheasant meat extracts treated with proteases. The crude protein, aminonitrogen, degree of hydrolysis, yield and amino acid composition of pheasant meat extracts when it was treated with proteases at various temperature and reaction time were analyzed. The crude protein contents of pheasant meat extracts processed in $130^{\circ}C$ were more than when it was done in $100^{\circ}C$, but the contents of aminonitrogen were not quite different between two processing temperature. The content of crude protein and aminonitrogen when pheasant meat was hydrolyzed with protease NP and prozyme A. The yields of pheasant meat extracts, when pheasant meat were treated at $100^{\circ}C$ and $130^{\circ}C$, were from 2.24 to 7.10% and from 5.51 to 10.45%, respectively. And the yield of extraction depended on extraction temperature, kinds of enzyme, amount of enzyme, extraction time. The content of aminonitrogen in pheasant meat extracts treated with enzyme was much higher than any other treatments. And it depended on amount of enzyme, extraction time and temperature. The amount of the amino acids in pheasant meat extracts treated by protease NP were eminently higher than by heat at $100^{\circ}C$ or $130^{\circ}C$.

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Improvement of Immune Activities of Rhodiola sachalinensis A. Bor. by Serial Solvent Fractionization (홍경천의 면역활성이 증진된 용매별 분획 추출물)

  • Ha, Ji-Hye;Kim, Cheol-Hee;Jeong, Hyang-Suk;Jin, Ling;Oh, Sung-Ho;Kim, Seung-Seop;Jeong, Myoung-Hoon;Ma, Choong-Je;Nam, Jong-Hyun;Hwang, Baik;Choi, Geun-Pyo;Park, Uk-Yeon;Lee, Hyeon-Yong
    • Korean Journal of Medicinal Crop Science
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    • v.17 no.3
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    • pp.210-216
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    • 2009
  • This study was performed to compare the effects of immuno-modulating activities of Rhodiola sachalinensis A. Bor. fractionized by consecutive solvent separation. The Cytotoxicity of all fractionized extracts on human kidney cell (HEK293) was lower than crude extracts. Generally, the butanol and chloroform extracts showed less cytotoxicity on about 10.07% and 9.67% than the crude extracts. For human immune B and T cell growth, chloroform fraction showed the highest cell growth compared to the control. The secretion of cytokines (IL-6, $TNF-\alpha$) on human B and T cells were increased by adding chloroform extracts. Also, NK cell growth was significantly improved up to nearly 30% by adding the supernatant of B cell medium grown with the chloroform fraction. It was also found that chloroform fraction could yield higher nitric oxide production from macrophage than untreated control cells. Differentiation of HL-60 cells was increased up to 131.9% after treatment with chloroform fraction extracts, compared to the control. These results indicate that the chloroform fraction of R. sachalinensis have high immune activation activity than others fractions and the crude extracts, implying that this chloroform fractions could be used a new functional material.