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Characterization of ginseng extracts
Woo, Lin-Keun,Han, Byung-Hoon,Baik, Duck-Woo,Park, Dae-Sic The Pharmaceutical Society of Korea 1973 약학회지 Vol.17 No.3
In order to establish the chemical standards for the quality control of ginsentgextract, an approach for the assay of sapogenin contents in the part of main roots and fibrous side roots was performed by combination of preparative thin layer chromotographic procedure and vanillin-$H_{2}SO_{4}$ color reaction. The contents of dammarane aglycones as funcction of dammarane glycosides in 80%-EtOH extracts were analyzed by the method from the main roots and fibrous side roots of Korean ginseng grown for 4-6 years. The differences by their grown ages in the contents of dammarane glycosides, in the ratio of panaxadiol to panaxatriol contents, and in the mounts of 80% EtOH extract were not significant in the parts of main roots and fibrous side roots of Korean gingeng. Differences due to the part for medicinal uses were highly significant in all parameters mentioned, showing following results ; in the main roots ; 80% EtOH extract, 12.7-15.7 % : the ratio of aglycone composition, 0.955-1.012 : dammarane glycoside (as diglucoside bases), 1.537-1.863 ; in fibrous isde roots ; 80% EtOH extract, 26.0-26.02% : dammarane glycoside, 4.767-5.641 : the ratio, 1.456-1.50.
PHYTOCHEMICAL SURVEY OF HERB DRUGS(Ⅰ)
Woo, Lin Keun,Kim, Jae Hoon 서울대학교 1963 서울대학교 論文集 Vol.13 No.-
Sixty five species of plants which are used currently as herb drugs in Korea were screened on the presence of alkaloid, phenolic compound, flavonoid, chalcone, lactone, glucoside, carbohydrate, terpenoid, steroid, protein, polypeptide, saponin and organic acid for the further study. For the preliminary report, alkaloids detected by paper chromatography are tabulated.
The synthesis of $^{14}C$-labeled dammarane glycoside of Ginseng
Woo, Lin-Keun The Pharmaceutical Society of Korea 1973 약학회지 Vol.17 No.3
Panax Saponin A (isopropyl-$^{14}C$) was prepared from natural saponin in good yield by the precesses; acetylation, osmium tetroxide oxidation, periodic acid oxidation, Witting process, and saponification.
우린근(Lin Keun Woo),한병훈(Byung Hoon Han),박대성(Dae Sung Park),나운룡(Woon Lyong Lah) 한국생약학회 1973 생약학회지 Vol.4 No.4
In the light of quality comparison the ratio of panaxadiol and panaxatriol contents was assayed in the extract of various ginseng products, whose origin of production and species of the original plants are different. Aglycone compositions of other ginsengs were not comparable with Korean ginseng in their ratio of panaxadiol and panaxatriol contents of dammarane glycosides.
우린근(Lin Keun Woo),서정상(Choung Sang Suh),도상학(Sang Hak To) 대한약학회 1968 약학회지 Vol.12 No.3,4
As the projects of this institute, 280 species of plants which are currently used as herb drugs in Korea were screened on the presence of alkaloids, phenolic compounds, flavonoids, chalcones, lactones, glycosides, carbohydrates, terpenoids, steroids, proteins, polypeptides, saponins, and organic acids, and the most reliable presence of alkaloids detected by thin layer chromatography is added by screening of 75 species.