• 한국자원식물학회지
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• 제5권1호
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• pp.57-68
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• 1992

The effects of various kind and amount of nitrogen fertilizers on the plant grorth. physiological , yield and extracts. ligustilide, butylidene phthalide contents of curdsdrug "Tou-ki" (AnTelica acutiloba Kitagawa) were investigated in 1989. Five plots variouskind of nitrogen fertilizers. Namely, no nitrogen, urea. ammonium nitrate, ammoniumchloride and control plot of ammonium sulfate. The other, by providing five plotsdifferent composed ratio of nitrogenous fertilizers. containing no nitrogen (No. o) .0.5-fold nitrogen (No s), control plot of 1.0-fold nitrogen(Nl.o). 1.5-fold nitrogen(Nl s)and 2.0-fold nitrogen Na. o), but nitogen was used the ammonium sulfate. The results showedthat the crude drug "Tou-ki" can ammonium chloride be produced in good yield, displayingboth good plant growth and remarkable physiologically-active conditions, and it can beproduced such that the extracts is maximized. Additionally, using methods of gaschromatography (GC) , it was established that ligustilide and butylidene phthalide, majorcomponents in the crude drug was recovered in a good yield from the fully grown plants.The other, the plant growth, the physiologically-active, the weight of whole plant, theyield of extracts and ligustilide, butylidene phthalide were seen to be best at the plotof 2.0-fold nitrogen and according to the increase or decrease of nitrogen decreasedgradually. Therefore. about 2 fold of standard quantity seems to be the most suitablequantity of nitrogen for "Tou-ki" cultivation .uot;Tou-ki" cultivation .ion .

• 한국자원식물학회지
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• 제10권3호
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• pp.213-220
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• 1997

The present study has been undertaken to characterize availability of citrus as a medicinal plant with antineoplastic property. The crude extracts from 40 species of fruits with 12 species of the local Citrus in Cheju island were evaluated on their potential activities against mouse P388 lymphocytic leukaemia in vitro. The percent cytotoxicity varied from 25.40 to 97.94% at a concentration of $100{\mu}g/mL$. Among 40 spp., 8 species showed high toxicity more than 90% against P388 cells and Cheongkyool(C. nippokoreana) exhibited the most cytotoxicity as 97.94%($IC_{50}=20.2{\mu}g/mL$). Nine varieties of C. junos were showed insiginicant cytotoxicity. In trifoliate orange, immature fruit was stronger than mature and peel extract showed higher cytotoxicity($IC_{50}=18{\mu}g/mL$) than the other tissues. Hexane fraction from methanol(MeOH) extract of trifoliate orange showed highly significant inhibition of cell growth($IC_{50}=3.9{\mu}g/mL$). In addition, its cytotoxicity increased remarkably from 3.95 to $0.40{\mu}g/mL$ as exposure time legthened. Cytotoxic activities of crude extracts were decreased considerably during a six months storage period. It was apparent that there is considerable variation in cytotoxicity, depending upon species, maturity and storage time of extracts. There was no meaningful cytotoxic difference between archicitrus and metacitrus in the genus Citrus.

• 대한한의학회지
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• 제17권1호
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• pp.111-131
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• 1996

For the development of antimetastatic agent 41 kinds of crude drugs were used for the evaluation of inhibitory effect of several crude drugs on cell adhesion of pulmonary cancer cells and platelet aggregation. Results were obtained as follows: 1. Water extracts of crude drugs inhibited cell adhesion of A549 to complex extracelluar matrix over 40 % of contol were Houttuyniae Herba, Mylabris, Rhei Radix et Rhizoma, Meliae Cortex, Ferula Resina, Oldenlandiae diffusae Herba at the higher concentration of $10^{-3}g／ml$ while those inhibiting cell adhesion of Bl6-Fo over 40 % of control were $10^{-5}g／ml$ of Houttuyniae Herba, Aurantii Fructus, Lithospermi Radix, Zedoariae Rhizoma. Prunellae Spica, Foeniculi Fructus, Rbei Radix, Scutellariae Radix, Meliae Cortex, Ferula Resina and Oldenlandiae diffusae Herba. 2. MeOH extracts of crude drugs at the concentration of $4{\times}10^{-4}g／ml$ inhibiting cell adhesion of A549 specifically to single extracelluar matrix over 40 % of control were Lithospermi Radix, Agrimoniae Herba, Rhei Radix and Ferula Resina to collagen I, Houttuyniae Herba, Lithospermi Radix, Bupleuri Radix, Salviae miltiorrhizae Radix, Orostachys Herba, Sappan Lignum, Meliae cortex ferula Resina and Coicis Semen to collagen Ⅳ, Mylabris, Agrimoniae Herba to laminin, Houttuyniae Herba and Meliae Cortex to fibronectin. 3. NeOH extracts of crude drugs at the concentration of $4{\times}10^{-4}g／ml$ inhibiting cell adhesion of B16-Fo specifically to single extracelluar matrix over 60 % of control were Lithospermi Radix, Salviae miltiorrhizae Radix, Meliae Cortex and Ferula Resina to collagen I, Lithospermi Radix, Bupleun Radix, Saiviae miltiorrhizae Radix, Ferula Resina and Acanthopanacis Cortex to collagen Ⅳ, Bupleuri Radix, Orostachys Herba to laminin, Houttuyniae Herba to fibronectin. 4. MeOH extracts of crude drugs inhibiting platelet aggregation over 40% of ADP control were at the concentration of $50{\mu}g/m{\ell}$ of Houttuyniae Herba, Angilicae gigantis Radix, Zedoariae Rhizoma. Coicis Semen and $100{\mu}g/m{\ell}$ of Ferula Resina, Orostachys Herba, Salviae miltiorrhizae Radix, Curcumac Radix, Carthami Flos, Lithospermi Radix, Gleditsiae Spina, Sappan Lignum, Acanthopanacis Cortex. These results suggest that several crude drugs including Ferula Resina, Houttuyniae Herba, Lithospermi Radix and Salviae miltiorrhizae Radix chiefly have more possibility to exert antimetastatic activity and require in vivo antimetastatic study.

• 생약학회지
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• 제37권1호통권144호
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• pp.37-41
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• 2006

This study investigates the chemical components and biological activities in Picrasma quassioides (D.Don) Benn. extracts for the purpose of developing natural pharmaceutical products. The proximate components in Picrasma quassioides (D.Don) Benn. extracts were 81.56% of carbohydrate, 5.80% of crude fat, 7.75% of crude protein, and 2.07% of crude ash. Calcium was the most predominant mineral and followed phosphorus, potassium, sodium, and magnesium, in a decreasing order. The content of the unsaturated fatty acids, such as oleic acid, linoleic acid, and linolenic acid, was find to be higher than those of saturated fatty acids. Water and methanol extract exhibited antioxidative activity with $IC_{50}$ of $128{\mu}g/ml$ and $144{\mu}g/ml$, respectively, suggesting that the extracts are the major biological component in Picrasma quassioides (D.Don) Benn. extracts. The ${\alpha}-glucosidase$ inhibitory activity showed that methanol and water extract were the high inhibitory activity. Considering these results, water extracts of Picrasma quassioides (D/Don) Benn. showed the possibility that they can be used as a new material for natural pharmaceutical products.

• 한국식품영양과학회지
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• 제24권2호
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• pp.293-298
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• 1995

Antimicrobial effect of tea extracts from green tea(steamed, roasted), oolong tea and black tea was investigated. Minimal inhibitory concentration(MIC) of tea extraxcts against 9 well known strains of foodborne pathogenic bacteria such as the Gram positive and Gram negative bacteria was determined at 37$^{\circ}C$. Significant antimicrobial activity was observed in the steamed green tea and the roasted green tea of the water-soluble fraciton, and the steamed green tea of the methanol-soluble fraction, and the steamed green tea, roasted green tea and the oolong tea of the crude catechin fraction. The MIC of these extracts against B. subtillis were 700$\mu\textrm{g}$/ml, 500$\mu\textrm{g}$/ml and 120 $\mu\textrm{g}$/ml, respectively. The crude catechin fraction possessed greater antimicrobial activity than did the other fractions. Among tea extracts, extracts of steamed green tea, roasted green tea and oolong tea showed higher antimicrobial activity than them of black tea. The MIC of the crude catechin fraction obtained from tea extracts against Gram-positive bacteria such as M. Iuteus, B. subtillis and S. mutans were 30~50$\mu\textrm{g}$/ml, 120~240$\mu\textrm{g}$/ml and 120~180$\mu\textrm{g}$/ml, and against Gram-negative bacteri such as e. aerogenes and V. parahaemolyticus were 50~60$\mu\textrm{g}$/ml and 60~70$\mu\textrm{g}$/ml in the broth medium, respectively. Especially, the MIC to Streptococcus mutans which has known as a causative bacteria of a decayed tooth were 120$\mu\textrm{g}$/ml, 140$\mu\textrm{g}$/ml, 180$\mu\textrm{g}$/ml and above 1,000$\mu\textrm{g}$/ml in steamed green tea, roasted green tea, oolong tea and black tea, respectively. Tea extracts had strong growth inhibition activity against foodborne pathogenic and dental bacteria.

• 한국식품과학회지
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• 제29권5호
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• pp.869-875
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• 1997

본 연구에서는 국내산 화분의 가공 및 제품개발에 필요한 기본적인 자료를 제공하기 위하여 국내산 충매화분인 잡화분, 도토리화분, 다래화분, 풍매화분인 송화분과 제품개발시 소재로 이용될 수 있는 각 화분의 물 및 n-핵산 추출물에 대하여 일반성분, 무기질, 아미노산, 지방산, 유리당 조성 및 비타민 등의 성분 분석을 실시 하였다. 일반성분 분석 결과 단백질 함량이 $14.0{\sim}22.3%$로 상당히 높은 것으로 나타났으며, 송화분의 경우 조섬유가 37.5%로 특이하게 많이 함유되어 있었다. 또한 조섬유를 제외한 다른 성분들은 물과 n-핵산 추출시 원료화분으로부터 거의 대부분 추출되어 나오는 것으로 나타났다. 화분 물 추출물에 함유되어 있는 유리당은 주로 fructose, glucose 이었으며 소량의 maltose도 포함되어 있는 것으로 나타났으며, 고형분 100%에 대한 양으로 환산하면 잡화, 도토리, 송화분의 물 추출물 중 3가지 유리당의 총량이 차지하는 비율이 각각 73.6%, 85.4%, 47.7%로 나타나 물 추출물 중 상당부분이 유리당으로 구성되어 있음을 알 수 있었다. 잡화, 도토리, 송화분 모두에 K와 P가 가장 많이 함유되어 있고, Ca, Na, Mg, Fe, Zn등 여러 종류의 무기질이 골고루 함유되어 있다. 화분에 함유되어 있는 대부분의 무기질은 물 추출에 의해 거의 다 용출되었다. 화분에는 leucine, phenylalanine, methionine, lysine, valine, isoleucine, threonine 등의 필수아미노산들이 풍부하게 함유되어 있었다. 비타민 $B_2$는 화분과 화분의 물 추출물에서만 검출되었을 뿐 비타민 $B_1$이나 비타민 C는 검출되지 않았다. 화분에는 linoleic acid나 linolenic acid 같은 필수지방산이 많이 함유되어 있었으며, 송화분을 제외한 나머지 화분들은 전체 지방간 조성 중 불포화 지방산이 차지하는 비율이 모두 50% 이상인 것으로 나타났다.

• Mycobiology
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• 제38권1호
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• pp.58-61
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• 2010

In an effort to develop novel mushroom-derived anti-obesity nutraceuticals, water and ethanol extracts containing the lipaseinhibitory compound from Phellinus linteus were prepared, and their nutritional components were determined. The optimal conditions for the extraction of P. linteus lipase inhibitor involved the treatment of the fruiting bodies with distilled water at $80^{\circ}C$ for 72 hr and 80% ethanol at $100^{\circ}C$ for 60 hr, respectively. The distilled water extract and ethanol extract contained 10.9% and 6.11% of crude protein, and 0.96% and 15.86% of crude fat, respectively. Additionally, the distilled water extract contained a large quantity of minerals, including 239.5 mg of K, 39.3 mg of Mg, and 39.3 mg of Na. The free amino acid content of the distilled water extracts was also higher than that of the ethanol extracts, and in particular, the distilled water extracts contained 5,139 mg of asparagine, 3,891 mg of tryptophan, 2,598 mg of alanine, and 2,066 mg of serine in 100 g of the distilled water extracts. 100 g of the distilled water and ethanol extracts were found to contain 12.31 g and 8.16 g of malic acid, respectively.

• 생약학회지
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• 제13권3호
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• pp.116-121
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• 1982

In order to investigate the side-effects of crude drugs, twenty drugs have been tested for the teratogenic effect in rats. Among seven drugs contained alkaloid as their ingredients, no one showed teratogenic effect, but Veratri rhizoma showed embryo-toxic as revealed by severe retardation in growth of the fetuses. The other thirteen drugs which have been used freguently in oriental medicines exhibited no teratogenic effect. Cyclophosphamide used as a reference compound showed severe malformation and retardation in the growth of rat fetuses. These findings suggest that the drug extracts adopted for the study might have no teratogenic effect in the rats.

• Toxicological Research
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• 제7권2호
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• pp.151-155
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• 1991

Thirty six crude drug samples have been prepared from different parts of twenty five plants belonging to different families, and antimutangenic activities were studied by using SOS chromotest (E. coli PQ 37). The following crude extracts of PNG medicinal plants which had a appreciable antimutagenic activity against mitomycin C were: Artocarpus communis (stem bark), Cycas circinalis (leaves), Merremia peltata (leaves), Intsia palembanica (leaves), Annona muricata (stem bark), and Artocarpus altilis (root bark).

• 대한약학회:학술대회논문집
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• 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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• pp.267.2-267.2
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• 2003

Melanin biosynthesis inhibitors are useful not only for the materials used in cosmetics as skin-whitening agents but also for the remedy of hyperpigmentation. In order to find the new skin-whitening compounds from the natural products. screening of tyrosinase inhibitory activity in vitro has been carried out. The EtOH extracts of two hundred crude drugs were performed at the concentration of 500 $\mu\textrm{g}$/$m\ell$. (omitted)