• 생명과학회지
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• 제20권9호
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• pp.1385-1393
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• 2010

국내산 참당귀의 생리활성 물질을 이용한 건강 기능성 식품 또는 화장품 소재 개발을 위한 기초연구의 일환으로 참당귀 뿌리를 3종류의 곰팡이 균주, A. oryzae, A. kawachii 및 M. purpureus 균주로 발효시켜 polyphenolic compounds, flavonoids, minerals, decursin 및 decursinol angelate 함량 분석과 항산화, 환원력 및 tyrosinase 활성을 측정 하였다. 참당귀 뿌리의 decursin과 decursinol angelate의 총 면적에 대한 함량 비율은 각각 44.0 및 27.3% 였으며, 한편 A. oryzae, A. kawachii 및 M. purpureus에 의한 발효 당귀의 decursin 함량 비율은 각각 52.0, 54.4 및 53.7% 였다. 참당귀 뿌리의 polyphenolic compounds 함량은 2.78% 였으나 발효 당귀에서 모두 약간씩 감소하였고, flavonoid 함량은 1.03% 함유되었으나 M. purpureus 발효 당귀에서 1.18%로 약간 증가하였다. 참당귀 뿌리의 미네랄 조성은 K, Mg, Fe, Ca, Na, Mn, Zn 순이였으며, 발효당귀에서 Na은 감소하고 나머지는 모두 증가하였다. 참당귀 뿌리의 항산화 활성 19%에 비해 A. oryzae, A. kawachii 및 M. purpureus 발효 당귀에서 각각 46, 49 및 56%로 모두 2배 이상 증가하였다. Fe- 및 Cu-환원력은 참당귀 뿌리보다 발효 당귀에서 모두 낮아지는 경향을 보였다. Tyrosinase 저해 활성은 당귀 뿌리의 18%에 비해 A. oryzae, A. kawachii 및 M. purpureus 발효 당귀에서 각각 34, 37 및 45%로 발효에 의해 2배 이상 증가하였다. 이상의 실험결과 발효 당귀에서 대표적인 화합물인 decursin과 decursinol angelate 함량이 증가하고, 항산화 활성 및 tyrosinase 저해 활성이 증가됨으로서 이를 활용한 건강기능 제품 개발 가능성이 높아졌으며, 이러한 제품 개발에 필요한 기초 자료를 제공해주는데 유용하게 사용될 것이다.

• 한국식품영양과학회지
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• 제29권2호
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• pp.300-306
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• 2000

In the present studies, we assessed the stability of active components and toxicological safety of irradiated Angelica gigas Nakai(Danggui). In order to confirm the stability of active components in the ${\gamma}$-irradiated roots of Danggui, the quantitative analysis of decursin and decursinol angelate of ${\gamma}$-irradiated sample was carried out by high performance liquid chromatographic (HPLC) methods using reverse phase columns and normal phase columns. From the root of Danggui, decursin and decursinol angelate were isolated by a silica gel column chromatography(toluene : ether (1 : 1), Hexane : EtOAc(15 : 1)). And then the structures were confirmed in the 1H and 13C-NMR analysis. The HPLC chromatograms of decursin and decursinol angelate in ${\gamma}$-irradiated Danggui were similar with those of non-irradiated sample. In the examination of in vitro genotoxicity of the water extract from ${\gamma}$-irradiated Danggui using Salmonella reversion assay(Ames test) and micronucleus test in Chinese hamster ovary (CHO) cells, mutagenicity was not exhibited in the two assays with or without metabolic activation. These resutls suggest that active components in the ${\gamma}$-irradiated Danggui should be stable and that the safety of ${\gamma}$-irradiated Danggui could be revealed in further test in vivo.

• Natural Product Sciences
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• 제27권4호
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• pp.264-273
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• 2021

Simultaneous quantification of multiple marker compounds in herbal medicine by high performance liquid chromatography (HPLC) analysis is still a challenge due to the complexity in various parameters to be considered and co-existing multi-components. As a case study, a reliable HPLC method for simultaneous quantification of paeoniflorin from Paeoniae Radix and decursin from Angelicae Gigantis Radix in various commercial herbal medicine was developed based on analytical quality by design (AQbD) strategy. As a first step, risk assessment was performed to select the critical method parameters (CMPs) which were decided as organic mobile phase ratio and column oven temperature. In order to evaluate the effect of the CMPs on critical method attributes (CMAs) of peak resolution and tailing, central composite design (CCD) was employed. The final chromatographic conditions were optimized as follows: column- C₁₈, 4.6 × 250 mm, 5 ㎛ particle size; mobile phase- A: acetonitrile, B: 0.1% acetic acid water; detection wavelength- 235 nm for paeoniflorin, 325 nm for decursin; column oven temperature- 25℃; flow rate- 1.0 mL/min; gradient mobile phase system as Time (min) : % A, 0:14, 25:14, 30:50, 60:50, 61:100, 65:100, 66:14, 75:14. The method was successfully validated according to the International Conference on Harmonization (ICH) guidelines and piloted for ten commercial herbal medicines.

• 대한본초학회지
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• 제33권1호
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• pp.85-91
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• 2018

Objectives : This study was carried out to evaluate the quality of different drying methods and different roots(primary root and lateral root) of Angelica gigas Nakai. Methods : The experimental method was performed according to the Korea Pharmacopoea Eleventh edition (KP11). Loss on drying, ash, acid insoluble ash, ethanol extract, nodakenin and total decursin contents were tested to evaluate the quality of root tissue of Angelica gigas Nakai. In addition, the treatment of different root parts were prepared in two groups of washing dry process and natural dry process. Results : In comparison of dry processing methods, total contents of nodakenin and total decursin in the primary root and lateral root through washing dry process were ranged from 3.55 to 4.09% and from 5.18 to 6.13%, respectively. And also, those of roots from the natural dry process were from 4.36 to 6.22% and from 6.28 to 8.34%, respectively. In the washing dry process and natural dry process methods, 47.9% and 22.3% higher amount of nodakenin and total decursin were measured in lateral root compared to primary root. In common, lateral roots accumulated higher contents of nodakenin and total decursin compared to primary roots, and samples drying processed with natural dry process compared to washing dry process method contained higher amount of compounds. Conclusions : We sincerely hope that this study will be contributed to the standardization and quality control of Angelica Gigas Root.

• 생약학회지
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• 제27권4호
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• pp.323-327
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• 1996

The ether soluble fraction of the roots of Angelicae gigantis Radix caused a significant prolongation of hexobarbital(HB) induced sleeping time in mice. Through systematic fractionation of the ether fraction monitored by bioassays, two pyranocoumarins, decursinol angelate and decursin were isolated as active principles. Decursin, as a main component, exhibited significant prolongation of HB-induced hypnosis as well as significant inhibition of hepatic microsomal drug metabolizing enzyme(DME) activities at relatively high dose which indicated that it is a weak DME inhibitor.

• 생약학회지
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• 제21권1호
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• pp.64-68
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• 1990

From the root of Angelica gigas Nakai, decursinol angelate was isolated, which is structural isomer of decursin. Raw material contained average 2.44% of decursinol angelate and 3.30% of decursin by the GC analysis.

• 한국식품영양과학회지
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• 제29권3호
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• pp.442-447
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• 2000

당귀 유용성분의 신속한 추출방법을 개발하기 위한 기초연구로써, 기존 추출방법들에 비하여 환경친화적이고 경제적인 장점이 알려진 마이크로웨이브의 추출조건을 검토하였다. 가용성 당귀성분의 MAP추출에서 당귀의 입자 크기는 60 mesh, 시료와 용매의 비는 1:10(g/mL) 이 적당하였고, microwave power는 80 W에서 당귀성분의 추출효율이 높았다. 가용성 고형분과 decursin 함량을 동시에 가장 많이 추출할 수 있는 50% 에탄올을 용매로 하였을 경우 5분간 3회 반복 추출로써 decursin을 포함한 대부분의 가용성 성분을 추출할 수 있었다.

• Journal of Plant Biology
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• 제31권2호
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• pp.131-141
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• 1988

The effects of decursinol and decursin on chloroplast-mediated electron transport and phosphorylation in barley seedlings were investigated in comparison with coumarin in the dark or light. The changes of CP-complexes were also studied. Decursinol, decursin and coumarin caused marked inhibitory effects on germination of seed and electron transport and phosphorylation activity of seedlings. The following order of inhibitory effectiveness was exhibited; decursinol>coumarin>decursin. Loss of chlorophyll and decrease of electron transport activity were retarded in the dark, but were reversely accelerated in the light by these three chemicals. The changes of CP-complex patterns were also similar to effects on chlorophyll content and the electron transport activity. These opposite effect in the dark and light suggest that these three chemicals act as natural growth retardants rather than cytokinins or growth inhibitors.

• Archives of Pharmacal Research
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• 제11권4호
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• pp.308-311
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• 1988

Nine coumarin dervatives were examined for thier inhibitory effects on bovine lens aldose reductase activity (bovine-LAR). More than 50% inhibition of BLAR activities was observed in the cases of treatments with decursin, decursinol, esculin, isoimperatorin, oxypeucedanine and isobergapten at the concentration of $10^{-4}$M. Especially, BLAR activity was completely inhibited by the treatment of decursin and decursinol at this concentration. At $10^{-5}$ M, only three coumarins-decursin, decursinol and isoimperatorin, were found to have still relatively higher inhibitory effect.

• 농약과학회지
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• 제5권3호
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• pp.26-35
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• 2001

식물자원으로부터 식물병원균에 대한 항균물질을 탐색하고자 국내에서 재배한 40종의 약용식물 추출물을 대상으로 항균활성을 검색하였다. 우선, 각 식물을 methanol (MeOH)로 추출, 농축한 MeOH추출물을 시료로 하여 $2000{\mu}g/mL$ 농도수준에서 6가지 식물병에 대한 in vivo 방제효과를 조사하였다. 40종의 시료 중 14종의 시료가 적어도 한가지이상의 식물병에 대하여 90% 이상의 방제효과를 나타내었다. 벼 도열병, 토마토 역병 및 밀 붉은녹병에 대해서는 각각 8개, 7개 및 3개의 시료가 90% 이상의 효과를 나타내었으나, 벼 잎집무늬마름병, 토마토 잿빛곰팡이병 및 보리 흰가루병에 대해서는 90% 이상의 방제효과를 보이는 시료는 없었다. 벼 도열병에 대하여 높은 활성을 보이는 당귀(Angelica gigas, 당귀(當歸))와 백지 (Angelica dahurica, 백지(白芷))의 MeOH추출물로부터 solvent partitioning과 column chromatography를 통하여 각각 1개 및 2개의 항균물질을 분리하였으며 이들 물질은 질량분석 및 핵자기공명분석에 의하여 모두 coumarin계 물질인 decursin, imperatorin 및 isoimperatorin으로 동정되었다. 구조와 항균활성간의 관계를 알아보기 위하여 분리한 3개의 물질을 7번 위치에 free hydroxyl기를 가지고 있는 umbelliferone (7-hydroxycoumarin)과 scopoletin (6-methoxy-7-hydroxycoumarin)과 비교하여 in vitro 및 in vivo 항균활성을 조사하였다. In vitro에서 균사생육억제활성을 조사한 결과, 이들 물질들은 대상식물병원 곰팡이에 대하여 50% 균사생육억제농도 ($IC_{50}$)가 대부분 $200{\mu}g/mL$ 이상으로 나타나 항균활성이 비교적 약한 것으로 나타났다. 또한 7번 위치에 hydroxyl기가 노출되어 있는 umbelliferone과 scopoletin보다는 7번 위치의 free hydroxyl기 대신에 cyclic alkoxy기로 존재하는 decursin과 imperatorin이 곰팡이에 대한 항균활성이 강한 것으로 나타났다. 특히, decursin과 imperatorin은 각각 Pythium ultimum과 Magnaporthe grisea에 대하여 $25{\mu}g/mL$ 이하의 $IC_{50}$를 보여 강한 항균활성을 나타냈다. In vivo 실험에서는 decursin과 imperatorin은 여섯 가지 식물병 중 벼 도열병에 대하여 항균활성이 높은 것으로 나타났으며, 다른 세 개의 물질은 식물병 방제활성이 거의 없는 것으로 나타났다. 이상의 실험결과 7-hydroxycoumarin계 물질들의 항진균활성과 관련하여 7번 위치에 free hydroxyl기가 있는 것보다는 이 hydroxyl기가 보다 안정한 cyclic alkoxy기로 치환되는 것이 높은 항균활성을 나타내는데 중요하다는 것을 알 수 있었다.