• Archives of Pharmacal Research
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• v.29 no.10
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• pp.845-848
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• 2006

Three new sesquiterpene hydroperoxides, 1-[3-(2-hydroperoxy-3-methylbut-3-en)-4-hydroxyphenyl]ethanone (2), $7{\beta}-hydroperoxy-eudesma-11-en-4-ol$ (3), and $7{\alpha}-hydroperoxymanool$ (4), together with three known compounds, germacrone (1), ent-germacra-4(15),5,10(14)-trien-$1{\alpha}$-ol (5) and teucdiol A (6) were isolated from the aerial parts of Aster spathulifolius (Compositae). Their structures were characterized using chemical and spectroscopic methods. The isolated compounds were tested for their cytotoxicity against five human tumor cell lines in vitro using a SRB method. The two new compounds, 3 and 4, showed moderate cytotoxicity against human cancer cells with $ED_{50}$ values ranging from 0.24 to $13.27\;{\mu}g/mL$.

• Archives of Pharmacal Research
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• v.19 no.3
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• pp.231-234
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• 1996

Two acetophenone glycosides, 2, 4-dihydroxy-6-methoxy acetophenone $4-O-\beta-D-glucopyranoside(I)$, 2, 4, 6-trihydroxy acetophenone $2-O-\beta-D-glucopyranoside(II)$, together with coniferin(III) were isolated from the aerial parts of Artemisia stolonifera (Max.) Kom. The structures of the compounds were elucidated on the basis of spectroscopic evidence. Compound IIwas also confirmed as a new phenolic glycoside from natural sources. In addition, compound I induced cytostatic activity of macrophasges, while compounds II and III did not.

• Natural Product Sciences
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• v.18 no.3
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• pp.166-170
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• 2012

The purification of the MeOH extract from the aerial parts of Erythronium japonicum using column chromatography furnished a new megastigmane glucoside, erthrojaponiside (1), together with six known megastigmane derivatives (2 - 7). The structure of the new compound (1) was determined through 1D and 2D NMR spectral data analysis and chemical means. The isolated compounds (1 - 7) were tested for cytotoxicity against four human tumor cells in vitro using a Sulforhodamin B (SRB) bioassay.

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.193.1-193.1
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• 2003

Activity-guided separation for the aerial parts of Rodgersia podophylla A. Gray gave a new acylated flavonoid, quercetin 3-O-${\alpha}$-L-(5$^2$-acetyl)-arabinofuranoside (1), together with six known flavonoids (2-7). Their hepatoprotective activities were determined by using the primary cultures of rat hepatocytes injured by H$_2$O$_2$. Quercetin 3-O-${\alpha}$-L-(3$^2$-acetyl)-arabinofuranoside (3), kaempferol 3-O-${\alpha}$-L-rhamnopyranoside (5) and quercetin 3-O-${\alpha}$-L-rhamnopyranoside (6) exhibited hepatoprotective activities comparable to silybin at the concentration of 50 mM (45.7, 50.8 and 57.3 %, respectively), and the new flavonoid 1 showed hepatoprotective activity at the concentration of 100mM (50.1%).

• Korean Journal of Pharmacognosy
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• v.53 no.1
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• pp.16-20
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• 2022

Five ent-kaurane type diterpene glycosides were isolated from the aerial parts of Inula britannica var. chinensis Regel (Compositae) through repeated column chromatography. Their chemical structures were elucidated as 16β-H-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (1), 16β-hydroxy-17-acetoxy-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (2), 16β,17-dihydroxy-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (3), 16α,17-dihydroxy-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (4) and 17-O-β-D-glucopyranosyl-16β-H-ent-kauran-19-oic acid-19-O-β-D-glucopyranoside (5), respectively, by spectroscopic analysis. Among these compounds, 1-4 were isolated for the first time from this plant.

• Journal of Ginseng Research
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• v.9 no.1
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• pp.9-14
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• 1985

The aerial parts, stem diameter, stem length, Petiole length, leaf length and leaf width were investigated to estimate coefficient of variability in ginseng at 2 to 4 years grown under the conventional and improved shadings. C.V values of characters such as stem length, petiole length, leaf length and leaf width were decreased with increasing the plant age, while that of steam diameter was increased. C.V. values of aerial part characters were higher in conventional shading than in improved shading, and the variance of c.v. was not significant when above 20 plants were investigated.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.32 no.2D
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• pp.129-136
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• 2012

In the US, Japan and Germany the Aerial-Based Vehicle Detection System, which collects real-time traffic data using the Unmanned Aerial Vehicle (UAV), helicopters or fixed-wing aircraft has been developed for the last several years. Therefore, this study was done to find out whether the Aerial-Based Vehicle Detection System could be used for real-time traffic data collection. For this purpose the study was divided into two parts. In the first part the possibility of retrieving real-time traffic data such as travel speed from the aerial photographic image using the image processing technique was examined. In the second part the quality of the retrieved real-time traffic data was examined to find out whether the data are good enough to be used as traffic information source. Based on the results of examinations we could conclude that it would not be easy for the Aerial- Based Vehicle Detection System to replace the present Vehicle Detection System due to technological difficulties and high cost. However, the system could be effectively used to make the emergency traffic management plan in case of incidents such as abrupt heavy rain, heavy snow, multiple pile-up, etc.

• Archives of Pharmacal Research
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• v.21 no.6
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• pp.785-786
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• 1998

The aerial parts of Teucrium yemense yielded two iridoid glycosides. Their structures were elucidated by spectral means as teucardosid and 8-O-acetylharpagid.

• Korean Journal of Pharmacognosy
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• v.12 no.3
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• pp.147-148
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• 1981

Two flavonol-glykosides have been isolated from the aerial parts of Viola lactiflora Nakai (Violaceae) and could be identified as robinin and kaempferitrin.

• Proceedings of the Ginseng society Conference
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• 1978.09a
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• pp.145-148
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• 1978