• Applied Biological Chemistry
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• 제43권1호
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• pp.72-77
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• 2000

항경련 활성을 보인 오미자의 열매로부터 활성물질을 분리하기 위하여 MeOH로 추출하고, 추출물을 EtOAc, n-BuOH 및 물로 분배, 추출하였다. 얻어진 각 분획에 대하여 중추 신경계에서 억제성 신경전달물질로 알려진 ${\gamma}-aminobutyric$ acid(GABA)의 대사조절효소들인 succinic semialdehyde reductase (SSAR) 및 succinic semi-aldehyde dehydrogenase(SSADH)의 활성을 측정하였다. 활성 억제효과를 나타낸 EtOAc 분획으로부터 silica gel column comatography를 반복하여 sesquiterpene 및 sterol 배당체 각 1종, lignan화합물 4종을 분리, 정제하였다. 각각의 화학구조는 NMR, MS 등의 스펙트럼 데이터를 해석하여, chamigrenal, daucosterol, gomisin A, gomisin H, gomisin N 및 schizandrin으로 동정하였다. 각 화합물에 대하여 활성을 측정한 결과, schizandrin을 SSADH와 1시간 전처리하였을 때 효소의 활성은 65% 억제되었으며, daucosterol의 경우에는 같은 조건에서 SSAR의 활성을 80% 억제하는 것을 관찰할 수 있었다.

• Journal of Ginseng Research
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• 제17권1호
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• pp.52-60
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• 1993

Panax ginseng has been extensively used in the traditional oriental medicine as a restorative, tonic and Prophylactic agent. Recently, several reports regarding to anticancer effects of Panax ginseng has accumulated. These studies emphasized the fact that the anticancer activities might be due to a glycoside group called ginsenoside or pan.u saponin which has a water soluble characteristic. However, the authors and collaborates demonstrated that a highly lipid soluble component in extract of Panax ginseng roots contains a considerable cytotoxic activities against marine leukemic cells (L1210, P388) and human censer cells (HRT-18, HT-29, HCT48). This study was devised to observe the cytotoxic activities of Petroleum-ether extract of Panax giuseng roots (crude GBD and its Partially Purified fraction from silicic acid column chromatography (7 : 3 GX) against sarcoma-180 (5-180) and Walker carcinosar- coma 256 (Walker 256) in vivo, and murine leukemic Lymphocytes (L1210) and human rectal cancer cells (HRT-18) and human colon cancer cells (HT-29 and HCT48) in vitro. Each cell-line was cultured in medium containing serial concentration of the crude GX or 7 : 3 GX in vitro. A highly lipid soluble compound in the extract of Panax ginseng root was cytocidal to murine leukemic cells and human colon and rectal cancer cells in vitro. In the meantime, ginseng saponin derivatives did not have cytotoxic effects at its corresponding concentration. The growth rates of the cancer cells in medium containing ginseng extracts were inhibited gradually to a significant degree roughly in proportion to the increase of the extract concentration. The cytotoxic activity of 7 : 3 GX was about 3 times more potent than that of crude GX, one unit of cytotoxic activity against L1210 cells being equivalent to 2.54 Ug and 058 Ug for the crude GX and 7 : 3 GX, respectively. The Ri value of the active compound on silica- gel thin layer chromatography with petroleum-ether/ethyl ether/acetic acid mixture (90 : 10 : 1, v/v/v) as a developing so lvent was 053. While, the Panaxydol and Panaxynol as active compounds were purified from Petroleum-ether extract of Panax ginseng root by Drs. Ahn and Kim, and author found out that the one unit of cytotoxic activity of the Panaxydol and Panaxynol against L1210 cells being equivalent to 056 Ug and 0.3918 respectively. The survival times of mice inoculated with S-180 cells were extended about 1.5 to 2 times by the 7 : 3 GX treatment compared with their control group. The significantly decreased hemoglobin values of rats after inoculation with Walker 256 were recovered to normal range by oral administration of the crude Gt The synthetic levels of protein, DNA and RNA in human colon and rectal cancer cells were significantly diminished by treatment with the crude GX, which can explain a part of the origin of its anticancer activity.

• 생명과학회지
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• 제28권11호
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• pp.1347-1353
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• 2018

본 연구는 한국전통약용식물(구기자, 오미자 잎)의 발효물로부터 분리한 Bacillus coagulanse NRR1207의 발효 특성을 파악하고 Bacillus coagulans NRR1207의 ${\alpha}$-galactosidase의 활성과 이를 통한 대두박의 비소화성분의 분해를 확인하였다. Bacillus coagulans NRR1207이 생산하는 효소 중 ${\alpha}$-galactosidase, ${\beta}$-galactosidase, ${\alpha}$-glucosidase가 가장 높은 40 nmol 이상의 활성을 나타내었다. Bacillus coagulans NRR1207의 발효 특성은 10% skim milk에서 배양했을 때, pH는 급속히 감소했고 적정 산도는 1.9%까지 증가했고 생균수도 발효 24시간에 8.8 log CFU/ml로 증가했다. 유당은 배양 72시간째 완전히 고갈되었고 유산 생산 능력도 탁월했다. Bacillus coagulans NRR1207을 대두박에 접종 후 배양시간에 따른 생균수의 변화는 배양 시작 시 7.6 log CFU/ml, 배양 16시간에 최고에 도달하여 9.0 log CFU/ml이었고 배양 72시간에 8.3 log CFU/ml로 Bacillus coagulans NRR1207이 왕성하게 잘 성장하였다. 대두박의 비소화성분 분해는 Bacillus coagulans NRR1207 접종 후 발효 24, 48, 72시간이 경과하면서 이 균이 생산한 ${\alpha}$-galactosidase에 의해 비소화성분인 stachyose와 raffinose가 대부분 분해되고 galactose가 생성되었다. 따라서 Bacillus coagulans NRR1207은 대두박의 비소화성분을 분해하는 생균제(Probiotics)로써 이용하여 식품 및 가축 사료 이용성 증대에 활용이 가능할 것으로 사료된다.