• 분석과학
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• 제8권4호
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• pp.505-509
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• 1995

The terpenoids in the volatile constituents of Liaoning Shcisandra Chinesis Baillon have been determined by the analytical method of GC/MS. Thirty terpenoids molecular structure were characterized. They are 11.89% monterpenes, 4.60% monoterpene oxides, 58.74% sesquiterpene hydrocarbons, and 1.62% oxygen-containing sesquiterpenoids in the total volatile constituents quantified by chromatograph. Among them, the sesquiterpene make up the characteristic constituents. Every terpenoid constituent percent content was obtained using area normalization method of HP-59970 chemstation.

• Applied Biological Chemistry
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• 제40권5호
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• pp.455-458
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• 1997

Crude oils in the rhizoma of fresh and dried Gastrodia elata were obtained by a simultaneous steam distillation and extraction(SDE) method using n-pentane/diethyl ether (1 : 1) as solvent, and their volatile constituents were analyzed by gas chromatography-mass spectrometry(GC/MS) A total of 39 volatile flavor constituents (11 acids, 13 alcohols,6 hydrocarbons,7 carbonyls,2 esters) and 25 constituents (6 alcohols, 13 acids, 4 hydrocarbons, 1 carbonyl, ester) were identified in the fresh and dried Gastrodia elate respectively. The major volatile components of the fresh and dried sample were hexadecanoic acid(66.78%, 50.72%), 9-hexadecenoic acid(8.07%, 9.58%), heptadecanoic acid(2.01%, 0.13%), pentadecanoic acid(6.41%, 4.94%), p-cresol(1.43%,0.52%) and cyclododecene(1.83%, 6.00%).

• 방사선산업학회지
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• 제6권1호
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• pp.17-21
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• 2012

The effects of gamma ray or electron beam irradiation on herbaceous medicinal plants were investigated in terms of the composition of volatile constituents using the aerial parts or leaves of Artemisia princeps Pamp. cv. Ganghwayakssuk and Artemisia argyi cvs. Namhaeyakssuk and Hwanghaessuk. The composition of volatile constituents in leaves was clearly distinguishable among the three Artemisia cultivars. However, the relative proportions of the major volatile constituents such as 1,8-cineole, ${\alpha}$-pinene, camphene, santolina triene, and artemesia triene, were similarly changed in two or three cultivars by gamma ray or electron beam irradiation. In particular, the proportion of 1,8-cineole was increased up to 1.29- to 1.71-fold in the three cultivars after irradiation with gamma ray. These results suggest that gamma ray or electron beam irradiation can be applied to modulate the composition of volatile constituents in the leaves of Artemisia plants.

• 한국식품영양학회지
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• 제30권2호
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• pp.363-370
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• 2017

This study investigated the chemical composition of headspace gas from white-flowered lotus (Nelumbo nucifera Gaertner). Volatile flavor compositions of headspace from white-flowered lotus (floral leaf, stamen, flower stalk, stem) were investigated through the solid-phase microextraction method using polydimethylsiloxane-divinylbenzene fiber. The headspace was directly transferred to a gas chromatography-mass spectrometry. Sixty-three volatile flavor constituents were detected in the headspace of lotus floral leaves, and undecanoic acid (7.81%) was the most abundant component. Fifty-three volatile flavor constituents were detected in the headspace of lotus stamina, and isobutylidene phthalide (7.94%) was the most abundant component. Forty-four volatile flavor constituents were detected in the headspace of lotus flower stalks, and 3-butyl dihydrophthalide (11.23%) was the most abundant component. Fifty-nine volatile flavor constituents were detected in the headspace of lotus stems, and ligustilide (16.15%) was the most abundant component. The content of phthalides was higher in the headspace of flower stalks and stems, while alcohols and acids were the predominant compounds in lotus floral leaves.

• 한국식품조리과학회지
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• 제11권4호
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• pp.386-395
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• 1995

미나리(Oenanthe javanica D.C)의 향기성분의 추출방법, 부위별 및 열처리 방법에 따라 미나리의 향기 성분을 분석한 결과는 다음과 같다. 수증기 증류법에 의해 추출된 성분은 23종의 성분, Head space법에서는 8종의 성분, Ether 추출법에서는 16종의 성분, Tenax-GC법에서는 9종의 성분이 확인되어 향기성분 조성은 추출방법에 따라 상당한 차이를 나타냈고, 수증기 증류법에 의해 추출하였을때 가장 많은 종류의 성분이 검색되었다. 부위별 미나리 향기성분을 분석한 결과, 향기성분의 함량은 줄기와 잎에서 각각 41.71 mg%, 85.37 mg%로 잎에서의 함량이 줄기보다 더 높았다. 줄기 부위에서는 hydrocarbon류 14종, aldehyde류 5종, alcohol류 4종으로 23종의 성분을 잎 부위에서는 hydrocarbon류 21종, aldehyde 5종, alcohol류 4종, ester 1종으로 31종의 성분을 확인하였으며, 잎 부위가 줄기에 비하여 비교적 다양한 종류의 향기 성분이 검출되었다. 줄기에서는 octanal 함량이 가장 높았고, limonene, sabinene, -terpinene, -myrcene 함량이 높았으며, 잎에서는 octanal 함량이 가장 높았고, isobicyclogermacrene, limonene, -farnesene, undecaethiol, -terpinene, sabinene, elemene, -myrcen 함량이 높았으며, 이들이 미나리의 중요한 향기성분이라 할 수 있다. 또한 열처리 방법에 따라 미나리의 향기성분 조성이 변화되었으며, 1000 $m\ell$에서 열처리한 미나리가 생시료 미나리의 향기성분과 가장 유사하였고 향기 성분 함량이 가장 높았다.

• Natural Product Sciences
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• 제26권2호
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• pp.132-135
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• 2020

Volatile constituents obtained by water distillation from the aerial parts and root of Onosma dichroanthum Boiss (Boraginaceae) native to the north of Iran were investigated by GC and GC/MS for the first time. Palmitic acid (39.61%) and decane (31.39%) were the major components in the root while decane (26.26%) and phytol (25.52%) were the predominant constituents in the aerial parts. Ketones, aldehydes, alkanes, fatty acids, oxygenated diterpenes and sesquiterpenes were characterized as the most phytochemicals in the aerial parts. Alkanes and fatty acids were identified as the main groups in the root volatile substances. There were two ketone derivatives, belong to apocarotenoids, in the aerial parts; β-ionone and hexahydrofarnesyl acetone.

• 농업과학연구
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• 제38권4호
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• pp.723-730
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• 2011

To search for the new development of industrial application of woody plants, the chemical composition of the volatile constituents from woody plants (Evodia daniellii, Clerodendron trichotomum, Prunus padus, and Zanthoxylum ailanthoides) was determined by GC and GC/MS spectrometric analysis with the aid of NBS, Wiley Library and RI indice searches. The major constituents were t-ocimene from the leaves of E. daniellii, linalool from the leaves of C. trichotomum, benzaldehyde from the leaves and twigs of P. padus, ${\beta}$-thujene from the leaves of Z. ailanthoides, and 2-undecanone from the stems of Z. ailanthoides. These results suggested that the major volatile constituents of woody plants could be a useful lead compound in the development of functional materials for industrial application.

• Food Quality and Culture
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• 제2권2호
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• pp.67-72
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• 2008

The volatile flavor compounds of wild and cultivated chamnamul (Pimpinella brachycarpa), an aromatic medicinal plant, were isolated via the simultaneous distillation extraction method and analyzed by GC and GC-MSD. From the oils of the wild chamnamul, 56 volatile flavor compounds were identified, and the major constituents were found to be sabinene (58.37 ppm) and germacrene-D (45.73 ppm). From the oils of cultivated chamnamul, 36 volatile flavor compounds were identified--the major constituents were identified as $\beta$-selinene (38.41 ppm) and myrcene (12.76 ppm).

• 한국자원식물학회지
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• 제11권3호
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• pp.279-282
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• 1998

This expriment was carried out to get basic information on composition and yield of aromatic constituents in leaves of four medicinal plants, Angelica tenuissima, Chrysanthemum zawadskii. ssp. latilobum, Artemisia iwayomogi and Artemisia capillaris. Volatile aromatic constituents, 28 compounds in Angelica tenuissima were identified and 19 compounds were indentified in Chrysanthemum zawadskii ssp. latilobum. Volatile aromatic constituents, 23 compounds in Artemisia iwayomogi and Artemisia capillaris were identified. Major volatile aromatic consitiuents analyzed by GC/MS in four plants were $\alpha$-pinene, camphene, sabinene, cis-2-hexanol, and camphor etc. Content of essential oils in Angelica tenuissima, Chrysanthemum zawadskii ssp. latilobum, Artemisia iwayomogi and Artemisia capillaris were 0.014, 0.275, 0.785, and 0.452%, respectively. As a result, it was suggested that a medicinal plant, Artemisia iwayomogi, was worthy of using as a useful material of perfume.

• 한국수산과학회지
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• 제11권4호
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• pp.183-188
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• 1978

피등어꼴뚜기를 가열가공할 때 발생하는 취기를 제거할 목적으로 취기성분을 gas chromatography로 공석한 것을 단보로서 요약하면 다음과 같다. 1. 피등어꼴뚜기 취기성분 추출에는 methanol이 가장 적합하였다. 2. 빙수trap에서 25개 peak, dry ice-acetone trap에서 32개 peak가 검출되었고, 그 중 acetic acid, butyric acid, iso-valeric acid, valeric acid, caproic acid 등 5성분을 동정하였다. 3. 액체질소 trap의 head space vapor에서 11개 peak가 검출되었고, 그 중 mothylamine, trimethylamine, dimethylamine, ethylamine, isopropylamine등 5성분을 동정하였다.