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두충(杜沖, Eucommiae Cortex)으로부터 Geniposide의 분리 및 함량분석
이주미,장승엽,이경순,손건호,Lee, Joo-Mi,Chang, Seung-Yeup,Lee, Kyong-Soon,Son, Kun-Ho 한국생약학회 2001 생약학회지 Vol.32 No.2
Geniposide, an iridoid glucoside, was isolated from the cortex of Eucommia ulmoides by repealed silica gel chromography and identified by its spectral data. The quantitative determination of geniposide with HPLC has been developed and this method provided a tool for standardization of the commercial Eucommiae Cortex.
목향(Saussureae Radix)으로부터 Costunolide의 분리 및 함량분석
김주선,지형준,장승엽,하광원,강삼식,Kim, Ju-Sun,Chi, Hyung-Joon,Chang, Seung-Yeup,Ha, Kwang-Won,Kang, Sam-Sik 한국생약학회 1999 생약학회지 Vol.30 No.1
Isolation and quantitative determination of costunolide from Saussurea lappa Clarke (Compositae) has been conducted by using HPLC method. Costunolide in an acetone extract from the crude drug was separated on a RP-18 column using a $MeOH-H_20$ mixture (65:35) as an eluent and the average content is about $1.32{\sim1.42%.$ The content of costunolide in dried extract was decreased by about 24% in seven days. However it showed a slight decrease in solution. It is highly recommended that quantitative determination of costunolide from Saussureae Radix should be conducted as early as possible after solvent extraction.
고삼(苦蔘, Sophorae Radix)으로 부터 matrine의 분리 및 함량분석
김주선,이경순,장승엽,원도희,강삼식,Kim, Ju-Sun,Lee, Kyong-Soon,Chang, Seung-Yeup,Won, Do-Hee,Kang, Sam-Sik 한국생약학회 2000 생약학회지 Vol.31 No.4
HPLC method was applied to the quantitative analysis of lupine alkaloid, matrine from alkaloid fraction of Sophorae Radix (Sophora flavescens). The average content of matrine from 20 Sophorae Radices showed $0.13{\pm}0.06%$.
하고초(夏枯草, Prunellae Herba)로부터 Ursolic acid의 함량 분석
김주선,이경순,장승엽,원도희,강삼식,Kim, Ju-Sun,Lee, Kyong-Soon,Chang, Seung-Yeup,Won, Do-Hee,Kang, Sam-Sik 한국생약학회 2000 생약학회지 Vol.31 No.4
Ursolic acid was isolated from Prunellae Herba (Prunella vulgaris var. lilacina) and identified by direct comparison with an authentic sample. A method of analysis for the evaluation of ursolic acid was developed based on extraction of ground plant material, followed by quantitative determination using capillary gas chromatography of the TMS derivative. Quantitative analysis by GC after derivatisation under mild silylating conditions showed 0.31% ursolic acid in 20 samples collected throughout regions of Korea while no ursolic acid was detected in the samples of the whole plant of Thesium chinense, a substitute for Prunellae Herba in southern regions of Korean peninsula.
우슬로부터 20-Hydroxyecdysone의 분리 및 함량분석
황지현,이승호,박정일,강신정,장승엽,이경순,손건호,Hwang, Ji-Hyun,Lee, Seung-Ho,Park, Jeong-Hill,Kang, Shin-Jung,Chang, Seung-Yeup,Lee, Kyong-Soon,Son, Kun-Ho 한국생약학회 1999 생약학회지 Vol.30 No.3
Separation and quantitative determination of 20-hydroxyecdysone from Achyranthis Radix has been conducted by using HPLC method. 20-hydroxyecdysone in a methanol extract from the raw drug was separated on a reverse phase column using a $CH_3CN-H_2O\;(18:82)$ solvent system and the average content is $0.0931{\pm}0.0048%$. For the preparation of authentic standard, we isolated 20-hydroxyecdysone from the roots of Achyranthes fauriei by $SiO_2$ and RP-18 column chromatography.
빈랑자(Arecae Semen)로부터 arecoline의 분리 및 함량분석
김소영,손건호,강신정,장승엽,박정일,이경순,이승호,Kim, So-Young,Son, Kun-Ho,Kang, Shin-Jung,Chang, Seung-Yeup,Park, Jeong-Hill,Lee, Kyong-Soon,Lee, Seung-Ho 한국생약학회 2001 생약학회지 Vol.32 No.1
The seeds of Areca catechu L. has been used for the treatment of the diseases caused by parasites in East Asia. As a part of a research for standardization of crude drugs, we have determined the content of arecoline in the seeds of Arecae Semen purchased from various regions of Korea. The HPLC method for quantitative analysis of arecoline in Arecae Semen was established and reproducible results and chromatographic isolation of arecoline was accomplished successively. It suggested that the content of arecoline in Arecae Semen was $0.2726\;{\pm}\;0.05532%$.
단삼(Salvia miltiorrhiza Bunge)으로 부터 Tanshinone IIA의 분리 및 함량분석
박미정,이승호,박정일,강신정,장승엽,이경순,손건호,Park, Mi-Jung,Lee, Seung-Ho,Park, Jeong-Hill,Kang, Shin-Jung,Chang, Seung-Yeup,Lee, Kyong-Soon,Son, Kun-Ho 한국생약학회 1999 생약학회지 Vol.30 No.2
The rhizomes of Salvia miltiorrhiza Bunge(Labiatae) has been used in Chinese traditional medicine for the treatment of coronary heart diseases and myocardial infarction. As a part of a research for standardization of crude oriental drugs, we have determined the content of tanshinone IIA in Salvia miltiorrhiza purchased from various regions of Korea. The HPLC method by which quantitative analysis was conducted, showed reproducible results and chromatographic isolation of tanshinone IIA was accomplished successively.
토복령(土茯令, Smilacis Chinae Radix)으로부터 Dioscin의 분리 및 함량분석
서정학,이주미,권순진,장승엽,이경순,손건호,Seo, Jung-Hak,Lee, Joo-Mi,Kwon, Soon-Jin,Chang, Seung-Yeup,Lee, Kyong-Soon,Son, Kun-Ho 한국생약학회 2001 생약학회지 Vol.32 No.2
The methods for isolation and quantitative determination of dioscin, a spirostanol triglycoside, from the roots of Smilax china have been developed. Isolation of dioscin was achieved by silica gel and RP-18 chromatography. The HPLC method used for quantitative determination of dioscin enabled the standardization of the crude drug. It suggests that the content of dioscin in Smilax china should be above 0.01%.