• Advances in Traditional Medicine
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• 제8권4호
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• pp.400-407
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• 2008

The aim of the present study is to investigate the anti-inflammatory and antimicrobial activity of petroleum ether and ethanol extracts of Scutia myrtina (Family: Rhamnaceae). In anti-inflammatory activity carrageenan and histamine induced paw oedema and cotton pellet induced granuloma for acute and chronic inflammatory models were studied in Wister albino rats. Based on the results of the present study it can be concluded that petroleum ether and ethanol extract of Scutia myrtina at 400 mg/kg has potential anti-inflammatory effect and they act in a dose dependent manner. Both extracts of Scutia myrtina showed antimicrobial activity against all bacterial and fungal strains tested at the concentration of $100\;{\mu}g$/ml. From the result, it can be concluded that the Scutia myrtina contain antibacterial and antifungal principle. Further more, besides the confirmation of the popular use; the obtained results demonstrate this herbal drug to represent a new source of antimicrobial and anti-inflammatory agent.

• Bulletin of the Korean Chemical Society
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• 제35권11호
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• pp.3224-3226
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• 2014

A new androstane derivative, $4{\beta}$-methyl-15-oxa-$14{\beta}$-androstane-7-ene-$4{\alpha}$-carboxylic acid (1) and a known one $4{\beta}$-methyl-15-oxa-$14{\beta}$-androstane-7-ene-$4{\alpha}$-hydroxyl (2) were isolated from the EtOAc extract of the cultures of the fungus Marasmiellus ramealis (Bull.) Singer. Their structures were elucidated on the basis of 1D and 2D NMR as well as MS spectroscopic data analysis. The inhibitory activity of two isolates against acetylcholinesterase (AChE) revealed that compound 1 exhibited definitely inhibitory activity.

• 생약학회지
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• 제47권3호
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• pp.246-250
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• 2016

Pinus densiflora contained diverse phenol compounds like flavonoid, phenylpropanoid and tannin. PineXol$^{(R)}$ is nutraceutical preparation which was treated from bark of Pinus densiflora. Validation and contents determination of taxifolin, (+)-catechin and procyanidion B1 for the preparation of Pinus densiflora (PineXol$^{(R)}$) were confirmed using High-Performance Liquid Chromatography (HPLC). As a result, content of taxifolin, (+)-catechin and procyanidin B1 were, respectively 4.90%, 2.35% and 8.19%. These analysis method and results could be used as important basic data for the preparation of Pinus densiflora.

• 생약학회지
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• 제48권4호
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• pp.261-267
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• 2017

As part of the search for bioactive constituents of Korean medicinal plants, twelve steroids (1-12) were isolated from the rhizomes of Dioscorea nipponica. The isolated compounds were identified as diosgenin ($3{\beta}$, 25R)-spirost-5-en-3-ol (1), 25(R)-dracaenoside E (2), dioscin (3), gracillin (4), prosapogenin B (5), 25(R)-dracaenoside G (6), diosgenin 3-O-${\beta}$-D-glucopyranosyl($1{\rightarrow}3$)-${\beta}$-D-glucopyranoside (7), ophipogonin C′ (8), 7-oxodioscin (9), protodioscin (10), hypoglaucin F (11), and protoneogracillin (12). Their structures were characterized by spectroscopic data and identified by comparing these data with those in the literatures. All the isolates (1-12) were evaluated for their neuroprotective effects through induction of nerve growth factor in C6 glioma cells and effects on nitric oxide (NO) production in murine microglia cell line BV-2. Compounds 7 and 12 were found to induce upregulation of NGF secretion without causing significant cell toxicity and compound 4 exhibited potent anti-neuroinflammatory activity.

• 호남수학학술지
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• 제39권3호
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• pp.379-399
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• 2017

The objective of this research article is to establish two relationships between q-product identities, theta function identities and combinatorial partition identities, using elementary results.

• Advances in Traditional Medicine
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• 제8권2호
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• pp.154-163
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• 2008

The methanol extract of stem barks of Careya arborea Roxb. (MECA) (Family- Myrtaceae) was evaluated for antitumor activity and antioxidant status against Ehrlich's Ascites Carcinoma (EAC) bearing Swiss albino mice. After 24 h of tumor inoculation the MECA was administered at the doses of 50, 100 and 200 mg/kg body weight/mice/day for 14 days. After the last dose and 18 h fasting mice were sacrificed. The effect of MECA on the growth of transplantable murine tumor, life span of EAC bearing hosts, hematological profiles, serum and liver biochemical parameters were estimated. The MECA showed significant (P < 0.01) decrease in ascites volume, packed cell volume and viable cell count and prolonged the life span of EAC tumor bearing mice. Hematological profiles reverted to more or less normal levels in extract treated mice. The MECA also produced protective effect by decreasing the activity of serum enzymes, bilirubin and increase the protein and uric acid levels. MECA significantly (P < 0.05) decreased the levels of lipid peroxidation, while significantly (P < 0.05) increased the levels of glutathione content, vitamin C, vitamin E, superoxide dismutase and catalase CAT. The results indicate that MECA exhibited significant antitumor and antioxidant activity in EAC bearing mice.

• 한국응용과학기술학회지
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• 제15권4호
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• pp.27-34
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• 1998

The natural body foam product which palm oil is added to this product, differs from products for clothes and Kitchen detergent, industrial and domestic detergent, and It has a various characteristics as a soft detergent for bath and hair product. Up to now, vidal sassoon product which imports form overseas and sells in our country, increases every year in consumption quantity. The development of this product tested to consider the quality of product in the effect of import transfer. First of all, the experiment of this product tested the fundamental items of pH, foam formation force, the moisture effect of product, the biodegradation degree of product. In case of palm oil, when it was added to this product in 0.25wt%, we could get experiment results that pH appeared in 6.2, foam formation force in product 1wt% solution appeared in 104ml per 30sec, the skin moisture effect of product appeared in incleasing from 82 a.u to 90 a.u within one hour since we have used the product, the biodegradation degree of surfactant appeared in 96.7%. According to the experiment result of product, we could know the fact that it has a high quality in comparison with other products.

• Biomolecules & Therapeutics
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• 제23권3호
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• pp.283-289
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• 2015

The half-dried leaves of Stewartia. pseudocamellia were extracted with hot water (SPE) and partitioned with n-hexane (SPEH), dichloromethane (SPED), and ethyl acetate (SPEE) successively. SPE and SPEE showed significant inhibitory effects against melanogenesis and tyrosinase activities. By bioassay-guided isolation, ten phenolic compounds were isolated by column chromatography from SPEE. The whitening effect of the isolated compounds from SPEE were tested for the inhibitory activities against melanogenesis using B16 melanoma cells, in vitro inhibition of tyrosinase, and L-3,4-dihydorxy-indole-2-carboxylic acid (L-DOPA) auto-oxidation assay. A cytotoxic activity assay was done to examine the cellular toxicity in Raw 264.7 macrophage cells. Of the compounds isolated, gallic acid and quercetin revealed significant inhibitory activities against melanogenesis compared to arbutin. In particular, quercetin exhibited similar inhibitory activities against tyrosinase and L-DOPA oxidation without cytotoxicity. These results suggested that SPE could be used as a potential source of natural skin-whitening material in cosmetics as well as in food products.

• 한국가구학회지
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• 제23권4호
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• pp.407-414
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• 2012

In order to develop the end use of cylindrical laminated veneer lumber (LVL) such as wooden crafts, the light resistance properties of natural dye-colored and finished cylindrical LVL was investigated. The study results were as follows; The cross section of LVL showed the higher light resistance than its tangential section, and the light resistance also increased with surface coated. On the other hand, LVL specimen were colored by 9 natural dyes of amur cork-tree etc., and the natural and apparent hue harmonized with wood was found after coating and light resistance test. Particularly, The dyes extracted from amur cork-tree, persimon and sappan wood showed orange color, reddish brown and red color respectively, giving an accenting effect to original wood color.

• 대한수학회보
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• 제47권5호
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• pp.997-1000
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• 2010

We prove that the reduced free product of $k\;{\times}\;k$ matrix algebras over abelian $C^*$-algebras is not the minimal tensor product of reduced free products of $k\;{\times}\;k$ matrix algebras over abelian $C^*$-algebras. It is shown that the reduced group $C^*$-algebra associated with a group having the property T of Kazhdan is not isomorphic to a reduced free product of abelian $C^*$-algebras or the minimal tensor product of such reduced free products. The infinite tensor product of reduced free products of abelian $C^*$-algebras is not isomorphic to the tensor product of a nuclear $C^*$-algebra and a reduced free product of abelian $C^*$-algebra. We discuss the freeness of free product $II_1$-factors and solidity of free product $II_1$-factors weaker than that of Ozawa. We show that the freeness in a free product is related to the existence of Cartan subalgebras in free product $II_1$-factors. Finally, we give a free product factor which is not solid in the weak sense.