• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.292-292
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• 2017

This study was conducted to evaluate the effect of anti-obesity and antioxidant enzyme activities in vitro by different solvent fractions from the roots of Codonopsis lanceolata. The cytotoxicity of different solvent fractions of C. lanceolata on 3T3-L1 preadipocytes were evaluated using the MTT assay, the rate of cell survival progressively decreased in a dose-dependent manner. Butyl alcohol fraction at $200{\mu}g/mL$ exhibited a pronounced cytotoxic effect (75.73%) on 3T3-L1 cell comparable to that of the hexane fraction (79.82%), methylene chloride fraction (84.02%), ethyl acetate fraction (87.62%) and DW fraction (86.30%) at the same concentration. The Oil Red O solution was used to determine whether different solvent fractions of C. lanceolata induce adipocyte differentiation in 3T3-L1 preadipocytes. Confluent 3T3-L1 cells were treated with $50{\mu}g/mL$ concentration of solvent fraction extracts from C. lanceolata. Inhibitory degree of lipid accumulation against solvent fraction extracts showed a significant level compared with the control. Both lipid accumulation and adipocyte differentiation showed relatively high effect on methyl chloride fraction. The root extract of C. lanceolata had the highest SOD enzyme activity of 84.5% in ethyl acetate partition layer and while water partition layer of diploid showed the lowest SOD enzyme activity of 57.9%. The activity of CAT, APX and POD showed a significantly higher activity in ethyl acetate partition layer compared with the other fraction. These results suggested that the roots of C. lanceolata may assist in the potential biological activity on anti-obesity and antioxidant capacity.

• 한국식품영양과학회지
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• 제28권4호
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• pp.822-829
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• 1999

최근 식품 산업의 발달로 장기간 식품 보존을 위하여 합성 보존제의 사용이 크게 증가하고 있는 실정이다. 그러나, 인체에 대한 유해성이 문제로 대두되면서 이를 대체할 천연 보존제의 개발이 절실히 요고되고 있는 실정이다. 따라서 본 연구는 우리나라 야산에서 쉽게 구할 수 있는 구황 식물인 민들레를 메탄올과 여러 용매로 추출하여 식품부패 미생물에 대한 항균력을 실험하고 그 항균 활성 물질을 분석하여 다음과 같은 결론을 얻었다. 민들레의 메탄올 추출물은 $2000\mu\textrm{g}/ml$ 농도에서 s. aureus를 완전히 억제하였고, L. monocytogenes는 98.43% 억제하였다. 그리고 민들레의 ethylacetate 분획물은 $1000\mu\textrm{g}/disc$ 농도에서 5종의 모든 시험균주에 대하여 clear zone을 형성하여 가장 높은 항균력을 보였다. 민들레의 ethyl­-acetate 분획물을 silica gel column chromatography와 TLC를 통해 분리하여 얻은 fraction을 5가지 시험균주에 대한 항균 실험 결과 3번째 3rd fraction의 항균력이 가장 높아 $250\mu\textrm{g}/disc$ 농도에서 E. coli를 제외한 모든 균주에 대하여 14mm 이상의 clear zone을 나타내었다. 항균력을 보인 민들레의 ethylacetate 분획의 3번째 3rd fraction을 먼저 HPLC로 분리하여 얻은 peak II로부터 $^{l}H-NMR$ 및 GC-MS로 분석한 결과 benzoic acid로 동정 되었다.

• 한국식품영양과학회지
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• 제39권6호
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• pp.789-795
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• 2010

식품의 색소원 및 약용으로 사용되어 오던 지치과 식물에 대한 정확한 품질지표를 마련하고자 재배방법이 다른 야생과 재배 지치에 대한 산화제거 물질과 관계되는 총 페놀 화합물 함량, 전자공여능, SOD 유사활성, hydroxy radical 소거능, lecithin oxidation 저해활성 등의 항산화능을 조사하였다. 지치의 methanol 추출물에 대한 총 페놀 함량은 야생지치 0.14%, 재배 지치 0.13%이었고 용매별 분획물에 있어서 가장 높은 활성을 나타낸 것은 야생 지치의 경우 ethyl acetate 분획물, 재배 지치의 경우 n-hexane 분획물이었다. 지치의 methanol 추출물에 있어서 DPPH radical 50% 저해효과인 $IC_{50}$은 야생 지치 794.41 ${\mu}g$/mL, 재배 지치 971.86 ${\mu}g$/mL로서 야생 지치가 재배 지치보다 적은 농도에서 높은 활성을 나타내었다(p<0.05). 또한 용매별 분획물의 $IC_{50}$에 있어, 야생 지치는 ethyl acetate 분획층, 재배 지치는 nhexane 분획물에서 가장 높은 활성을 보였다. 또한 야생과 재배 지치의 SOD 활성 효과는 10~500 ${\mu}g$/mL 농도에서 의존적인 활성을 나타내었고 특히 메탄올 추출물은 농도 500 ${\mu}g$/mL에서는 다른 용매 분획물보다도 높은 활성을 나타내었다. Hydroxy radical 소거 활성은 야생과 재배 지치모두 1,000 ${\mu}g$/mL 농도에서 chloroform 분획층과 n-hexane 분획층을 제외하고 50% 이하의 가장 낮은 활성을 나타내었다. 마지막으로 lecithin 산화저해 활성은 야생과 재배 지치의 메탄올과 용매별 분획물의 농도 200~1000 ${\mu}g$/mL에서 높은 활성을 나타내었고 특히 농도 1,000 ${\mu}g$/mL의 chloroform 층에서는 90% 내외의 높은 제어효과를 확인하였다. 이상의 결과로 야생과 재배 지치 모두 항산화성을 가지는 기능성식품으로서의 활용 가능성이 높을 것으로 분석되었다.

• 한국응용과학기술학회지
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• 제33권2호
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• pp.255-263
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• 2016

식품부패미생물에 대한 감초추출물의 항균력을 확인하고 유효성분을 분리한 후 그 구조를 확인 하였다. 감초추출물은 대표적인 항균제인 메타중아황산칼륨과 myconazole과 비슷한 항균 활성을 나타내었다. 용매분획을 실시한 결과 chloroform fraction이 가장 항균활성이 높은 것으로 나타났다. 이에 chloroform분획을 silica gel column chromatography를 통해 분리하여 항균활성이 가장 큰 분획물인 KC를 분리하였다. 이 화합물은 ESI-MS 와 $^1H$-NMR, $^{13}C$-NMR 결과로부터 활성물질의 구조를 동정하였으며 그 결과 KC는 (R)-glabridin인 것으로 확인하였다.

• 한국식품영양학회지
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• 제28권1호
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• pp.1-8
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• 2015

This study was designed to determine the antioxidant activity of solvent fractions of broccoli sprouts grown by controlling the growing environment at the plant factory system. Fractionation was achieved with chloroform, n-hexane, ethyl acetate, butanol, water by 70% EtOH extract of the broccoli sprouts. Each solvent fraction was put through TLC and HPLC to separate active components. Higher antioxidant activities were observed for the butanol and ethyl acetate layers. Further evaluation of each of the 5 layers (LH1 to LH5) of the butanol fraction showed that the refined LH3 extract had a high antioxidant effect. Components with similar Rf values from TLC had the same retention times and peaks in the HPLC analysis. It was also determined that the sulforaphane content was high at the chloroform and butanol layers and the sulforaphane was responsible for, the high antioxidant activity. Thus, to use for functional materials, the butanol extract/layer of broccoli sprouts is recommended as the most effective.

• Food Science and Biotechnology
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• 제16권3호
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• pp.409-414
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• 2007

Antimicrobial and antioxidative effects of 14 different herbal flower extracts on skin microorganisms and oxidation were tested in this research. Herbal flower extracts were prepared with 70% ethanol. Among the herbal flower extracts, roselle (Hibiscus sabdariffa L.) flower extract showed the highest antimicrobial activity against Staphylococcus epidermidis as determined by a paper disc method. The seventy % ethanol extract of roselle flower was fractionated by sequential hexane, chloroform, ethyl acetate, n-butanol, and water fractionation. The growth of S. epidermidis, Streptomyces collinus, Streptomyces coeruleoprunus, Salmonella enteritidis, Vibrio parahaemolyticus, and Malassezia pachydermatis was most efficiently inhibited by ethyl acetate fraction of roselle flower extract as determined by a paper disc method and growth inhibition curves. In addition, the ethyl acetate fraction, water fraction and butanol fraction showed free radical scavenging and DNA cleavage inhibition activities. These results demonstrate that roselle flowers hold antimicrobial and antioxidative activities against skin microorganisms and oxidants.

• 대한한의학방제학회지
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• 제8권1호
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• pp.329-342
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• 2000

Citri Reticulatae Viride Pericarpium(CRVP) is being used to regulate the flow of Q(氣) However, the mechanism of it's pharmacological actions is not well understood. The purpose of this research was to investigate effects of CRVP contractil response of isolated on abdominal and femoral artery in rabbits and renal artery in pigs. 1. Abdominal artery was relaxed by CRVP in a dose-dependent manner. 2. Femoral artery was relaxed by CRVP in a dose-dependent manner 3. Pretreatment with methylene blue and indomethacin did not inhibited CRVP induced relax in abdominal artery and femoral artery. 4. Renal artery was relaxed by $H_{2}O$ fraction in a dose-dependent manner, 5. Pretreatment with regitine inhibited $H_{2}O$ fraction(CRVP) induced relax in renal artery in a dose-dependent manner. 6. Renal artery was not relaxed by hexane fraction(CRVP) in a dose-dependent manner. 7. Pretreatment with regitine$(10^{-7}M)$ was relaxed by methylene chloride(MC)(CRVP) and $H_{2}O$ fraction in a $0.5{\mu}g/m{\ell}$.

• 한국약용작물학회지
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• 제15권5호
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• pp.329-334
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• 2007

The potential antioxidant and anticancer activities of Hexane, EtOAc (Ethyl acetate), BuOH (n-Buthanol) and water fractions from methanolic (MeOH) extract of Picrasma quassioides (D. Don) Benn. were evaluated in vitro. Tested fractions showed strong antioxidant activity, especially EtOAc fraction had the highest activity ($IC_{50}\;=\;114.01\;{\mu}g/mL$), containing high total phenolics and total flavonoids contents, showed $67.59\;Tan\;{\mu}g/mg$ and $64.95\;Que\;{\mu}g/mg$ respectively. Anticancer activity of these fractions was tested by MTT assay on HT-29 (the human colon carcinoma cells) cell line. BuOH fraction not only showed very high anticancer activity, but also had no cytotoxic effect on 293 (the human normal kidney cells) cell line. Considering these results, we used BuOH fraction of MeOH crude extract from P. quassioides (D.Don) Benn. to do assessment of apoptosis by flow cytometry and the mRNA expression levels of widely established apoptotic-related genes on HT-29 cell line. All the experiments showed that BuOH fraction can induce apoptosis on HT-29 cell line strongly. Taken together, methanolic extract of P. quassioides has potential for antioxidant and anticancer activities products.

• Archives of Pharmacal Research
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• 제21권3호
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• pp.260-265
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• 1998

Angiogenic activity of Aloe vera gel was investigated by in vitro assay. We obtained the most active fraction from dichloromethane extract of Aloe vera gel by partitioning between hexane and 90% aqueous methanol. The most active fraction (F3) increased the proliferation of calf pulmonary artery endothelial (CPAE) cells. In addition, F3 fraction induced CPAE cells to invade type I collagen gel and form capillary-like tube through in vitro angiogenesis assay, and increased the invasion of CPAE cells into matrigel through in vitro invasion assay. Furthermore, the effect on the MRNA expression of proteolytic enzymes which are key participants in the regulation of extracellular matrix degradation was investigated by northern blot analysis. F3 fraction enhanced mRNA expression of urokinase-type plasminogen activator (u-PA), matrix metalloproteinase-2 (MMP-2), and membrane-type MMP (MT-MMP) in CPAE cells whereas the expression of plasminogen activator inhibitory (PAl-1) mRNA was not changed.

• 한국식품영양과학회지
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• 제32권1호
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• pp.22-28
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• 2003

단삼을 건조시켜 분쇄한 후 methanol로 추출하여 여러 용매로 분획하여 식품부패미생물의 증식억제 효과를 검색하고 그 항균성 물질을 분리하였다. 단삼의 chloroform 분획 추출물은 B subtilis, S. aureus, L. monocytogenes. E. coli 및 V, parahaemolyticus에 대해서 가장 낮은 농도인 250 $\mu\textrm{g}$/disc 농도에서 가장 높은 항균활성을 나타내었다. 단삼의 chloroform 추출물을 silica gel coliumn chromatography와 TLC로 monitoring 하여 항균성을 실험하였다. 이 결과 우수한 항균성 을 보인 sub fraction을 재차 분리하여 붉은색 결정의 항균성 물질을 얻었고 이를 GC/MS, $^1$H-NMR, $^{13}$C-NMR 로 구조분석 한 결과 화학식 이 $C_{19}$ H$_{20}$ O$_3$이며 분자량이 296.141 의 cryptotanshinone으로 동정되었다.