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청호 ( Artemisia apiaceae Herba ) 의 휘발성 성분
김옥찬(Ok Chan Kim),장희진(Hee Jin Jang) 한국응용생명화학회 1994 Applied Biological Chemistry (Appl Biol Chem) Vol.37 No.1
The essential oil of Artemisia apiaceae Hence was extracted by simultanous distillation-extraction and steam distillation and analyzed by GC and GC-MS. The oil content of Artemisia apiaceae Hance was 0.23% when extracted by steam distillation and 0.37% in case of simultaneous distillation-extraction and sensory analysis of the oil indicated camphorous and herbal characteristic notes. the experimental results confirmed the presence 34 volatile components, the major components were camphene, camphor borneol and caryophyllene. 5 fraction have a good aroma character among 11 fraction were seperated by using silicagel column chromatography. This can is used for the pharmaceutical industry because of amedical action.
오미자 ( Schizandra Chinensis Bullion ) 의 휘발성 성분
김옥찬(Ok Chan Kim),장희진(Hee Jin Jang) 한국응용생명화학회 1994 Applied Biological Chemistry (Appl Biol Chem) Vol.37 No.1
The essential oil of Schizandrae Fructus was extracted by simultanous distillation-extraction and steam distillation and analyzed by GC and GC-MS. The oil content of Schizandrae Frutus was 0.64% when extracted by steam distillation and 0.88% in case of simultanous distillation extraction and sensory analysis of the oil indicated woody, camphorous, spicy and sour characteristic notes. The experimental results confirmed the presence 47 volatile components, the major components were γ-terpinene, p-cymene, α-yangene and β-elemene. The oil was fractioned into ten fractions and 4 fraction of them have a good aroma character. The application of the oil showed the utilization possibility as flavoring materials for Korea tea.
${\beta}-Carotene$의 열분해(熱分解)에 의한 휘발성(揮發性) 화합물(化合物)의 생성(生成)
박준영,김옥찬,김영회,Park, Joon-Yung,Kim, Ok-Chan,Kim, Young-Hoi 한국응용생명화학회 1986 Applied Biological Chemistry (Appl Biol Chem) Vol.29 No.3
잎담배의 중요(重要)한 색소성분(色素成分)인 ${\beta}-carotene$을 $400^{\circ}C,\;600^{\circ}C$ 및 $800^{\circ}C$에서 각각 열분해(熱分解)한 다음 생성(生成)된 휘발성(揮發性) 성분(成分)들을 GC 및 GC/MS에 의해 확인하고 분해온도(分解溫度)에 따른 생성물(生成物)의 차이점을 비교하였다. 각 온도별(溫度別) 분해생성물(分解生成物)로부터 36종(種)의 방향족(芳香族) 탄화수소(炭化水素) 10종(種)의 ${\beta}-ionone$ 관련화합물을 포함하여 53종(種)의 휘발성(揮發性) 화합물(化合物)을 확인하였고 이들 중에서 ${\beta}-cyclogeraniol$을 포함한 37종(種)의 화합물(化合物)은 ${\beta}-carotene$의 열분해생성물(熱分解生成物)로서 아직까지 보고되지 않은 성분(成分)들이다. 한편 $400^{\circ}C$와 $600^{\circ}C$에서 열분해(熱分解)했을 때의 중요(重要) 생성물(生成物)은 $p-xylene,\;{\alpha}-terpinene,\;{\beta}-cyclocitral,\;ionene(1,2,3,4-tetrahydro-1,1,6-trimethylnaphthalene),\;{\beta}-ionone$ 및 dihydroactinidiolide 등이었고, $800^{\circ}C$에서는 위에서의 6종(種)의 성분(成分) 이외에도 toluene이 많이 생성(生成)되었다. Thermal degradation of ${\beta}-carotene$, major carotenoid present in cured tobacco leaves, were carried out at $400,\;600,\;and\;800^{\circ}C$ which are similar to temperatures existing in the combustion zones of cigarettes, and subsequent volatile degradation products were analyzed by combined gas chromatography-mass spectrometry. The volatile compounds identified from degradation products included 36 aromatic hydrocarbons, 10 ${\beta}-ionone-related$ compounds which have trimethylcyclohexane ring, and 7 others. Of these, 37 compounds including ${\beta}-cyclogeraniol$ had not been previously reported in the literature as thermal degradation products of ${\beta}-carotene$. The major compounds of degradation products at $400\;and\;600^{\circ}C$ were ${\beta}-xylene,\;{\alpha}-terpinene,\;{beta}-cyclocitral,\;ionene\;(1,2,3,4-tetrahydro-1,1,6-trimethyl\;naphthalene),\;{\beta}-ionone$, and dihydroactinidiolide. The major compounds at $800^{\circ}C$ were the above six compounds plus toluene.
바니린의 열분해에 관한 연구 - $800^{\circ}C$에서 바니린의 열분해 생성물의 확인을 중심으로 -
곽재진,김옥찬,박태무,Kwag, Jae-Jin,Kim, Ok-Chan,Park, Tae-Moo 한국연초학회 1984 한국연초학회지 Vol.6 No.2
The pyrolytic behavior of vanillin, a flavorant for manufactured cigarettes, was examined to find its contribution to the smoke composition. Vanillin was pyrolyzed at various temperatures (500-$900^{\circ}C$) in a stream of nitrogen. Pyrolytic products at $800^{\circ}C$ were identified with GC/MS. As increasing temperature, pyrolytic products did not appear with qualitative differences. Component analysis of the resulting products showed that 24 compounds were identified. and phenolic compounds were major products. The pyrolytic pathway of vanillin was also discussed.
Curie - point pyrolyzer - GC / MSD 를 이용한 4- hydroxy -3- methoxybenzaldehyde 의 열분해물 분석
유의경,김옥찬 ( Euy Kyung Yu,Ok Chan Kim ) 한국공업화학회 1997 공업화학 Vol.8 No.1
바니린을 Curie-point pyrolyzer-GC/MSD 장치를 사용하여 920, 740, 500, 333℃에서 각각 열분해하고, 열분해 생성물을 분리 및 확인하였다. 확인된 성분중에서 920℃에서는 95개 성분, 740℃에서는 40개 성분, 500℃에서는 17개 성분, 333℃에서는 11개 성분을 확인할 수 있었으며 이 열분해 반응생성물 중 주요 생성물인 벤젠, 페놀, 2-히드록시 벤즈알데히드, 2-메록시페놀, 4-메록시벤즈알데히드, 벤즈알데히드, 메록시벤젠, 1,3-시크로펜타디엔 등은 바니린의 작용기가 해리되었거나, 분해된 생성물로 생각되며, 1,3-benzodioxole-5-carbox-aldehyde, 메틸벤젠, 스틸렌, 메틸페놀 등은 500℃ 이하에서도 바니린의 메록시 작용기가 해리되어 생성되는 것으로 생각된다. This study was carried out to present a analysis of pyrolytic degradation of 4-hydroxy-3-methoxybenzaldehyde(vanillin) pyrolyzed at 330℃∼920℃ by Curie-point pyrolyzer connected with GC/MSD by on-line system. Identified by GC/MSD were 100 pyrolytic products of vanillin. The pyrolysis of the compound gave benzene, phenol, 1,3-cyclopentadiene, methyl benzene, benzaldehyde, benzofuran, and cresol as major products, which were produced by pyrolytic degradation and synthesis of vanillin radicals.
쿠마린의 열분해에 관한 연구 (제1보) -질소기류, $500^{\circ}C$에서 쿠마린의 열분해산물 동정-
박준영,김옥찬,Park, Jun-Young,Kim, Ok-Chan 한국연초학회 1982 한국연초학회지 Vol.4 No.2
Coumarin was pyrolyzed at $500^{\circ}C$ in a stream of nitrogen. The pyrolyzates of coumarin were adsorbed on the activated charcoal and then eluded by carbon disulfide. The eluted pyrolyzates were identified using a gas chromatography/mass spectrometry. Benzene, toluene, phenylacetylene, styrene, benzofuran and naphthalene were detected from the pyrolyzates of coumarin on the basis of their mass spectra. The pyrolytic mechanism of coumarin was also discussed.
이재곤,권여주,장희진,곽재진,김옥찬,최영현 ( Jae Gon Lee,Young Ju Kown,Hee Jin Jang Jae Jin Kwag,Ok Chan Kim,Young Hyun Choi ) 한국응용생명화학회 1997 Applied Biological Chemistry (Appl Biol Chem) Vol.40 No.2
Different isolation methods for the volatile components of Anise(Pimpinella anisum L.) are compared in terms of the difference of components obtained with each analytical procedure. These methods include headspace(purge & trap) sampling procedure, simultaneous distillation extraction(SDE), steam distillation and solvent extraction. Total 43 components were identified by comparing gas chromatography retention time and mass spectral data. Different isolation techniques result in compositionally different isolates. The headspace(purge & trap) sampling procedure was found to be the best method of choice for a qualitative analysis of the volatile components.
차득기(Tcha Dek Kie),김형무(Kim Hyung Moo),김옥찬(Kim Ok Chan) 한국지적정보학회 2009 한국지적정보학회지 Vol.11 No.2
국토는 국가의 주권이 미치는 범위로 영토·영해·영공을 말하며, 국민의 생활공간과 삶의 터전으로 국가 구성의 기본 요소이다. 국토(필지)를 정형화한다는 것은 경제적 개념으로는 국민생산 활동의 기반이 되는 모든 것들을 제대로 배치한다는 것이다. 이러한 국토의 소유권의 최소 등록단위가 필지(筆地)이다. 이 필지가 대부분 지형의 형상과 토지의 경작에 따른 수리에 유리하도록 형상이 이루어져 현대의 다양한 산업활동과 교통 등 위치기반의 서비스와 토지의 활용도가 떨어진다. 이러한 문제점을 감안하여 국토 구성요소인 필지형상을 정형화하여 국가자원을 보다 유용하게 활용하고자 하는 정책을 제안하였다. 본 연구는 국토공간의 효율적인 관리를 위하여 부정형의 개인 소유의 토지를 소유자의 요청에 의하여 정형화할 수 있도록 지원하여 국가자원인 토지를 효율적으로 관리하기 위한 것이다. 또한 비균질한 토지필지의 형상에 대한 정형화를 위한 기술적인 사항과 정책구현을 위한 단계적 전략을 제시하였다. In general, a homeland, as being a space and an infrastructure of people's lives, consists of dominion, territorial waters and territorial sky, is the essential element of a nation's establishment. The regular rectification of cadastral parcels using rectangular tessellation means a rearrangement of everything that are needed for the production of nation's people. And the smallest registration units of this homeland element are called as cadastral land parcels. However, the conventional tessellations of these cadastral land parcels those are far from the rectangular rectification, are becoming more non-useful as reaching to the modern industrial era because those have been formed according to the natural topographic, hydrologic and hydraulic origins and are becoming more inappropriate against the location based services for various industrial activities or transportations. Thus descriptive analysis and methods of serial strategic of the regular rectification of cadastral parcels using rectangular tessellation for the general rectification of non-equilateral cadastral land parcels are presented in this study.