• 약학회지
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• 제54권3호
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• pp.164-167
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• 2010

Column chromatographic separation of the MeOH extract from the aerial parts of Hibiscus manihot led to the isolation of four compounds. Their structures were characterized to be hentriacontane (1), palmitic acid (2), daucosterol (3) and 3-dihydrocaffeonyl-5-p-coumaroylquinic acid (4) by spectroscopic methods. The compounds (1~4) were for the first time reported from this plant. The solvent fractions were tested for their antioxidant activities by free radical scavenging and superoxide dismutase (SOD).

• 생약학회지
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• 제21권1호
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• pp.56-59
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• 1990

n-Alkanes (n-nonacosane and n-hentriacontane), phytosterols (campesterol and ${\beta}$-sitosterol) and phytosteryl glucosides (${\beta}$-sitosterol 3-O-${\beta}$-D-glucopyranoside and campesterol 3-O-${\beta}$-D-glucopyranoside) were isolated from the underground parts of Epimedium koreanum (Berberidaceae) and characterized by spectral data.

• 생태와환경
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• 제41권spc호
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• pp.99-106
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• 2008

본 연구는 왕겨의 메탄을 추출물이 유해 남조 Microcystis aeruginosa 생장에 미치는 영향 및 현장적용 가능성을 조사하였다. 실험에 사용한 왕겨 추출물은 미정제 추출물과 이를 다시 분획하여 분리, 정제한 후 얻은 ${\beta}$-sitosterol, ${\beta}$-sitosterol-${\beta}$-D-glucoside, 1-tetratriacontanol, hentriacontane, orizaterpenoid, stigmas-5-en-$3{\alpha}$ 26-diacetate, stearic acid, myristic acid 등 8가지의 순수화합물로서, 이들 추출물을 남조 세포에 처리하여 생장 변화를 조사하였다. 연구에 사용된 조류는 국립환경과학원에서 분양 받은 M. aeruginosa (NIER 10010)이고, 물벼룩은 독일 BBE사에서 분양 받은 Daphnia magna로서, 이들은 각각 CB배지와 경수를 이용하여 배양 유지되었다. 왕겨 메탄을 추출물을 1, 10, 100, $1,000{\mu}g\;L^{-1}$의 농도로 처리하여 조류 배양조건과 동일한 조건에서 일정시간 배양하였다. 실험결과, 왕겨 메탄을 추출물은 모든 처리구에서 7일 후 $59{\sim}73%$의 높은 생장 억제 효과를 나타내며 M. aeruginosa의 생장을 억제하였다. 한편, 8가지 물질을 M. aeruginosa에 $1,000{\mu}g\;L^{-1}$ 농도로 처리한 실험에서는 3가지 물질 (${\beta}$-sitosterol-${\beta}$-D-glucoside, hentriacontane, orizaterpenoid)에서 생장 억제 효과를 보였다. 또한 M. aeruginosa에 이들 3가지 물질을 조합하여 실험한 결과, 이들 3가지를 혼합한 처리구에서 생장 억제에 대한 유의한 상승효과를 나타냈다(p<0.05). 왕겨 메탄올 추출물의 현장적용 가능성을 파악하고자 $1,000{\mu}g\;L^{-1}$의 추출물 농도에 물벼룩을 처리하여 실험한 결과, 96시간 후에 85%의 높은 생존율을 보였다. 결론적으로, 왕겨 추출물은 M. aeruginosa의 생장 억제에 효과적인 천연물질로서 조류 제어에 상승작용이 나타났으며, 현장 적용시 수중생물에 대한 독성은 높지 않을 것으로 판단되었다.

• 한국식품영양학회지
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• 제12권4호
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• pp.415-420
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• 1999

Petal of Azalea(Rhododendron mucronulatum Turcz) was incubated with Gokja at 3$0^{\circ}C$ for seven days and the essential oil components of petal of Azalea before and after incubated were analyzed using a GC/MSD. Ten or more essential oil components including n-heneicosane n-tricosane n-tetreacosane n-pentacosane n-heptacosane n-nonacosane and n-hentriacontane were identified from the petal of Azal-ea before incubated while oxygen-containng compounds including (E)-heptenal 2-ethoxy-1 -hexanol n-hexadecanoic acid methyl ester 9, 12-octadecadienoic acid methyl ester 9,12,15-octadecatrienoic acid methyl ester, n-octadecanoic acid methyl ester n-eicosanoic acid methyl ester and 9-docosaenoic acid methyl ester as well as n-alkanes such as n-tricosane that n-pentacosane were identified from the petal of Azalea after incubated. These results suggest that n-alkanes in petal of Azalea might be degraded and some oxygen-containing compounds such as aldehyde, esters and /or acids might be produced when pet-al of Azalea is incubated with Gokja.

• 식물분류학회지
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• 제50권2호
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• pp.148-153
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• 2020

Cleisostoma scolopendrifolium is an orchid species solely pollinated by the male bee Megachile yasumatsui. Although C. scolopendrifolium is an endangered species in Korea, little is known about its pollination mechanisms or the profiles of its chemical attractants. This study provides evidence that the Cleisostoma orchid attracts male bees as pollinators by mimicking female mating signals. We found 13 hydrocarbons in the Cleisostoma orchid flower presumed to be involved in sex pheromone mimicry: five alkanes (tricosane, pentacosane, heptacosane, nonacosane, and hentriacontane), compounds of cuticular hydrocarbons which function as chemical cues for the recognition of mates and species in social insects; and eight alkenes ((z)-9-tricosene, (z)-9-pentacosene, (z)-11-pentacosene, (z)-9-heptacosene, (z)-11-heptacosene, (z)-9-nonacosene, (z)-11-nonacosene, and (z)-11-hentriacontene) which serve as sex pheromones in several insects. We suggest that these hydrocarbons play a key role in the pollination mechanism between Cleisostoma orchids and Megachile bees.

• 생약학회지
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• 제26권2호
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• pp.130-138
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• 1995

Phytochemical study on the aerial parts of Solanum lyratum (Solanaceae) was carried out. On the basis of phytochemical and spectroscopic evidences, compound I was identified as mixtures of hexadecanoic acid methyl ester, 2,6,10,15-tetramethyl heptadecane, tricosane, tetracosane, pentacosane, docosanoic acid methyl ester, docosane, tricosanoic acid methyl ester, 8-hexyl pentadecane, tetracosanoic acid methyl ester, pentatriacontane, hexatriacontane, eicosane, hexacosane, hentriacontane and stigmasta-5,23-dien $3-{\beta}-ol$, and compound II, III, IV and V were identified as hexacosanoic acid methyl ester, ${\beta}-sitosterol-{\beta}-{_D}-glucoside$, $3-O-{\alpha}-{_L}-rhamnopyranosyl-(1->2)-{\beta}-{_D}-glucuronopyranosyl$ diosgenin and $3-O-{\alpha}-{_L}-rhamnopyranosyl-(1->6)-{\beta}-{_D}-glucopyranosyl$ quercetin (rutin), respectively. Rutin was identified as one of the active principles having antioxidative effect from S. lyratum.