• 생약학회지
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• 제27권3호
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• pp.178-183
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• 1996

Seven phenolic compounds were isolated from the leaves of Spiraea salicifolia. Their structures were characterized as cinnamic acid, ${\rho}-hydroxy$ cinnamic acid, ${\rho}-methoxy$ cinnamic acid, $1-O-coumaroyl-{\beta}-D-glucopyranose$, $1-O-caffeoyl-{\beta}-D-glucopyranose$, hyperoside and quercetin $3-O-(6'-O-{\alpha}-L-arbinopyranosyl)-{\beta}-D-galactopyranoside$ by chemical and spectroscopic evidence.

• 생약학회지
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• 제27권3호
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• pp.238-245
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• 1996

The activity guided fractionation of $CH_2Cl_2$ soluble part of Platycarya strobilacea leaves(Juglandaceae) has led to the isolation of eight active principles, identified as 5-hydroxy-2-methoxy-1,4-naphthoquinone(1), ursolic acid(2), gallic acid(3), 4,8-dihydroxynaphthalene $1-O-{\beta}-_D-glucoside(4)$, eriodictyol(5), quercetin $3-O-(2'-O-galloyl)-{\beta}-_D-glucoside(6)$. quercetin $3-O-(2'-O-galloyl)-{\beta}-_D-galactoside(7)$ and quercetin $3-O-{\alpha}-_L-rhamnoside(8)$ by the means of chemical and spectral evidence, respectively.

• Natural Product Sciences
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• 제10권4호
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• pp.173-176
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• 2004

Six compounds were isolated from the BuOH soluble fraction of the leaves of Staphylea bumalda. On the basis of spectral data, they were identified as atragalin (1), $2-methyl-5,\;7-dihydroxy-chromone-7-O-{\beta}-D-glucopyranoside$ (2), isoquercitrin (3), nicotiflorin (4), kaempferol 3-neohesperidoside (5), kaempferol $3-O-[{\alpha}-rhamno-pyranosyl-(1\;{\to}\;4)-rhamnopyranosyl-(1\;{\to}\;6)-{\beta}-D-glucopyranoside]$ (6), respectively.

• Natural Product Sciences
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• 제9권2호
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• pp.56-59
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• 2003

Chemical studies on the constituents of the leaves of Murraya paniculata (Lynn) Jack have furnished three highly-oxygenated flavonoids; gardenin E (1), gardenin A (2), and gardenin C (3). Structures of the compounds were elucidated based on NMR, MS, UV, IR data and also by comparison with the previous works. The antimicrobial activities of these compounds and the crude extracts were also evaluated.

• 한국연초학회지
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• 제5권1호
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• pp.57-66
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• 1983

This study was carried out to estimate the quality of six Korean aromatic tobacco vatsieties by using the methods which suggested by Shmuk, Bruckner, Pyriki, Phillip and Tso. The results are as follows: 1 . The order of quality which estimated by the methods of Shmuk, pyriki, and phillip was 378-8 780-35 374-3 7801-19 Sohyang Hyangcho. 2. The order of quality by Bruckner's method was 7801-35 378-8 Sohyang 374-3 7801-19 Hyangcho. 3. By Tso's method the order of quality was 7801-35 374-3 378-8 7801-19 Sohyang Hyangcho. 4. In view of usability index the order of quality was Hyangcho 7801-19 Sohyang 378-8374-3 7801-35.

• Carbon letters
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• 제11권1호
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• pp.1-8
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• 2010

The adsorption of Acid Blue 92 onto three low cost and ecofriendly biosorbents viz., cow dung ash, mango stone ash and parthenium leaves ash and commercial activated carbon have discussed in this work. The ash of all the mentioned bio-wastes was prepared in the muffle furnace at $500^{\circ}C$ and all the adsorbents were stored in an air thermostat. Experiments at total dye concentrations of 10~100 mg/L were carried out with a synthetic effluent prepared in the laboratory. The parameters such as pH and dye concentration were varied. Equilibrium adsorption data followed both Langmuir and Freundlich isotherms. The results indicate that cow dung ash, mango stone ash and parthenium leaves ash could be employed as low-cost alternatives to commercial activated carbon in wastewater treatment for the removal of dye.

• 한국연초학회지
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• 제15권2호
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• pp.115-122
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• 1993

KB103 was developed from a cross between Burley 21 and Va 528 in 1983. It was developed by haploid method derived from anther culture method. It has moderate resistance to black shank(Phytophhorn nicotianae Breda de Haan Var. nictiana Waterhouse). KB103 produced good yields and quality in 1988-1990. It flowered about four or five days later than standard variety Burley 21, and plant height, leaf width, leaves per plants were similar to those of Burley 21. In maturing and curing properties as well as in chemical constituents of cured leaves, KB 103 was very similar to that of Burley 21. Regional farm test with the breeding line, KB 8304- ADH 65 named as KB 103 in 1986, was performed for 4 crop years from 1987 at 29 locations. It was released on burley tobacco area in 1992.

• 한국식품과학회지
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• 제8권2호
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• pp.70-73
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• 1976

한국 고유차류(固有茶類)의 개발을 목적으로 두중(杜仲)나무(Eucommia ulmoides)잎의 화학성분, 침출(浸出)조건 및 가공(加工)방법을 실험한 결과 두중차(杜仲茶)는 차류(茶類)로서의 기호적(嗜好的) 특성을 충분히 구비하고 있음을 확인하였다.

• Preventive Nutrition and Food Science
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• 제10권2호
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• pp.118-121
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• 2005

Methanol extracts were prepared from loquat leaves (2 kg) and successively fractionated with hexane, chloroform, ethyl acetate, butanol, and water solvents. The ethyl acetate fraction exhibited the highest antioxidative and, antimicrobial activities. Therefore, the ethyl acetate fraction was purified and a chemical structure was identified by $^1H$ and $^{13}C-NMR$ spectra, FT-IR and EI/MS spectroscopies. The isolated antioxidative and antimicrobial substance was identified as epicatechin.

• 생약학회지
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• 제35권1호통권136호
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• pp.1-5
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• 2004

Eight compounds were isolated from the n-BuOH soluble fraction of the leaves of Weigela subsesillis. On the basis of spectral data, they wεre identified as $kaempferol-O-3-{\alpha}-L-(3-O-acetyl)\;rhamnopyranosyl-7-O-{\alpha}-L-rhamnopyranoside$ (1), sutchuenoside A (2), kaempferitrin (3), astragalin (4), kaempferol 7-O-rhamnoside (5), scopolin (6), farxin (7), kaempferol 3-O-{\alpha}-L-rhamnosyl-7-O-{\beta}-D-glucoside (8), respectively.