• 한국식품영양과학회지
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• 제21권2호
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• pp.143-148
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• 1992

아플라톡신 B$_1$과 4-NQO의 돌연변이 유발성에 미치는 녹황색 채소류의 메탄올 추출물과 쥬스들의 항돌연변이 효과를 검토하였다. Salmonella typhimurium TA98과 TA100을 이용한 Ames실험계를 사용하였는데 아플라톡신 B$_1$에 대해 채소류의 메탄올 추출물 중에는 들깻잎, 상치, 브로콜리, 쑥갓, 미나리, 들미나리, 붉은고추, 고추잎, 비름, 시금치, 무 등이 큰 항돌연변이성을 나타내었다 (p< 0.01). 이 경우 시험시료 중 약 50% 정도가 저해 효과를 나타내었지만, direct mutagen인 4-NQO에서는 실험 시료 27종중 25종류(93%)에서 항돌연변이성이 관찰되었다 (p<0.01, 0.05). 이중 60%이상 저해효과를 나타낸 시료는 양배추, 케일, 상치, 브로콜리, 갓, 풋고추, 피망, 시금치, 비름, 콩나물, 애호박이었다. 한편 쥬스로 부터 아플라톡신 B$_1$에 대해 항돌연변이 효과를 나타낸 채소류는 들깻잎, 들미나리, 시금치, 양배추로써 각각 용량 의존적으로 (50~500${\mu}\ell$/plate)농도의 증가에 따라 그 저해도가 크게 증가하였다. 한편 오이와 당근은 농도를 높여도 큰 저해효과는 관찰되지 않았다.

• Journal of Nutrition and Health
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• 제27권7호
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• pp.717-728
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• 1994

This study was aimed to screen edible herbs which control the composition of intestinal microflora. With in vitro experiments, we screened the water or ethanol extracts of about 60 edible herbs and wild plants in terms of the inhibition activity on the growth of the harmful Clostridium perfringens and growth promoting activity for the beneficial Bifidobacteria. The water extracts of mugwort and small water dropwort inhibited the growth of Cl.perfringens both in agar diffusion method and broth culture. On the other hand, the water extracts of petasites, mugwort, yellow day-lily and bitter cress have shown the promotion effect on the growth of Bifidobacterium longum. In the culture test using human feces as starter, the extracts of the above selected herbs increased the population of Bifidobacteria and Lactobacillus while they reduced the numbers of Cl.perfringens and E.coli.

• 약학회지
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• 제52권4호
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• pp.316-321
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• 2008

The hepatoprotection by the methanol extract of Oenanthe javanica DC (water dropwort) (OJME) was investigated in Sprague Dawley rats with inducing liver damage by acetaminophen. After OJME administration for 1 week, the increase of hepatic lipid peroxide level by acetaminophen-induced hepatotoxicity was significantly reduced. In case of phase I microsomal enzyme systems including cytochrome P-450, aminopyrine N-demethylase and aniline hydroxylase, any significant differences between in control and in OJME-pretreated group was observed after acetaminophen treatment. However, the pretreatment of OJME maintained the hepatic glutathione level and the activity of liver cytosolic glutathione S-transferase, which was significantly decreased by the acetaminophen intoxication. Among the glutathione-generating system, glutathione reductase was more responsible for its biosynthesis rather than ${\gamma}-glutamylcystein$ synthetase. OJME itself showed the strong inhibition activity on DPPH radical generation. In conclusion, OJME administration maintains the liver glutathione pool and hepatic glutathione S-transferase activity, in addition with its high anti-oxidative capability, to show hepatoprotective effect from acetaminophen intoxication.

• 한국식품영양학회지
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• 제18권3호
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• pp.254-264
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• 2005

This study was conducted to estimate the contents of heavy metals 'Hg, Cd, Pb, As, Zn, Cu, Cr, Mn' in some vegetables which were produced in Korea. The levels of heavy metals were determined using a mercury analyzer, an ICP(inductively coupled plasma spectrometer) and an AAS(atomic absorption spectrophotometer) after wet digestion. The values of heavy metals "mean(mini.~maxi.)" ppm(mg/kg) in some vegetables(raw of perilla leaf, chard, small water dropwort, water dropwort, kale, bud of aralia, pumpkin(round type) and pumpkin(long type) were as follows : Hg : 0.0021(0.0006~0.0054)mg/kg, Cd : 0.0035(ND*~0.0377)mg/kg, Pb : 0.0191(0.0023~0.0928)mg/kg, As : 0.0757(ND~0.5294)mg/kg, Zn : 2.6299(0.4478~6.8567)mg/kg, Cu : 1.0261(0.2046~8.9417)mg/kg, Cr : 0.1535 (0.0240~0.4982)mg/kg, Mn : 3.2476(0.3283~9.8280)mg/kg. This results showed that Mn was generally simillar to previous reports and Cd, Hg, Pb were lower than other reseaches, but As was little higher or Zn, Cu, Cr were higher than the levels of those reported contents in some vegetables on domestic supermarkets in Korea, Although tolerable limit of Hg and Cd is not in a regulation of WHO/FAO, these mean levels(Pb, As, Zn, Cu) are lower than recommended levels of WHO/FAO, Pb "0.1~2.0" mg/kg, As "1.0" mg/kg, Zn "5.0" mg/kg and Cu "0.1~50"mg/kg from vegetables in 'the tolerable contents of food' by the FAO/WHO, therefor some vegetables has set to evaluate their safeties.

• 한국환경농학회지
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• 제34권4호
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• pp.253-259
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• 2015

BACKGROUND: During the off-season, the cultivation of Chinese cabbage and water dropwort is often used to desalinize plastic film house soils. The objective of this study was to verify the effect of double-cropping systems on the salt removal in oriental melon cultivated plastic film house soils.METHODS AND RESULTS: Electrical conductivity (EC) and soluble salt contents were measured in soils collected from plastic film houses of oriental melon cultivation before and after the off-season crop cultivation. Also the same measurements were performed in the next oriental melon season to estimate the desalinization effect of double-cropping systems. During the cultivation of Chinese cabbage under open-field condition, EC_eof surface soil was reduced from 6.0 to 0.8 dS/m. Double-cropping of water dropwort in flooded soil was also efficient in removing the salts accumulated during oriental melon cultivation. In the house soils where salts were removed during the off-season crop cultivation, soil EC_ewas maintained below 3 dS/m during the next oriental melon cultivation season.CONCLUSION: The off-season cropping under open-field or flooded condition was effective in desalinization of plastic film house soils. Since the salt removal effect is not expected to last for several years, the double-cropping system should be introduced every season to maintain soil EC below the critical level.

• 한국식품위생안전성학회지
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• 제7권4호
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• pp.161-168
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• 1992

Salmonella Typhimurium TA98과 TA100 두 균주를 이용한 Ames Assay를 실시하여 신채류 생즙의 돌연변이원성과 돌연변이 억제효과를 검토하였다. 돌연변이 유발물질로는 Trp-P-1과 2-AF가 사용되었다. 쑥, 들미나라, 두릅, 돌나물 및 도라지의 생즙은 돌연변이원성을 나타내지 않았다. 산채류 생즙의 항돌연변이원성 효과는 쑥, 들미나리, 두릅이 가장 강하였으며 다음은 돌나물이었고, 도라지는 거의 항돌연변이효과를 나타내지 않았다. 이와 같은 결과는 TA98과 TA100을 이용한 실험에서 유사한 결과를 보였으며, 돌연변이 물질로 Trp-P-1을 사용하여 실험한 결과가 2-AF를 사용한 실험결과에 비하여 돌연변이 억제효과가 강하게 나타났다.

• 한국식품영양과학회지
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• 제27권4호
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• pp.633-638
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• 1998

Fibrionolytic activity(FA) of kimchi in rat and FAs of water and methanol extracts of kimchi ingredient were determined using fibrin plate method to see where the active principles for FA are present in kimchi. Nine Sprague-Dawley per each group were fed diet containing 3, 5 or 10% of freeze dried kimchi for 6 weeks. The FA of plasma obtained from 10% kimchi group showed stronger FA than that of control. FAs of 3 and 5% kimchi group were not noticeable. FA from methanol extract of kimchi was approximately 6 times higher than that from water extract assuming that the active material may be present in a fat soluble fraction. From water extract of kimchi ingredients, dropwort, green onion, radish and baechu showed FA in descending order. And from methanol extracts, red pepper powder, radish, green onion and baechu showed FA in decending order. The Fa of methanol extract of red pepper powder was the most noticeable among samples.

• 한국식품영양과학회지
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• 제32권8호
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• pp.1344-1350
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• 2003

한국인이 일상생활에서 손쉽게 구입하여 주로 상용하는 7종의 채소에 대해 MDA에 대한 단백질의 보호효과, linoleic acid를 이용한 지질과산화억제, DPPH 라디칼 소거 활성을 측정하여 항산화 효과를 측정하고, Ames test를 통한 항돌연변이능의 탐색 및 상호 비교 결과는 다음과 같다. 7종의 채소류물 추출물의 MDA에 대한 단백질의 보호효과에서는 깻잎과 돌나물(62.5%)이 가장 효과적으로 MDA의 교차결합을 차단하였고 부추, 참취, 돌미나리도 각각 57.4%, 53.5%, 45.6%의 저해율을 보였다. 또한 MDA의 교차결합의 형성 차단정도를 비교한 상대 저해율은 채소류의 물추출물 처리농도가 증가할수록 저해율이 높아짐을 알 수 있었다. 7종의 채소류 에탄올추출물의 지질과 산화억제 활성을 측정한 결과, 가장 우수한 저해활성을 보인 채소는 상대적으로 돌나물(67.1%), 돌미나리(61.5%)가 유지류의 자동산화 반응에 대한 항산화효과가 가장 높았다. 7종의 채소류 에탄올추출물의 DPPH 라디칼 소거 활성을 측정한 결과, 쑥갓(78.8%), 돌미나리 (73.6%)가 높은 저해활성을 보였다. 각 채소류 에탄올 추출물들의 $IC_{50}$/값은 쑥갓이 31.1 $\mu\textrm{g}$/assay, 돌미나리가 93.8 $\mu\textrm{g}$/assay이었다. Ames test를 통한 채소류 에탄올 추출물의 항돌연변이능 실험에서는, 간접 작용 항돌연변이 능을 S. typimurium TA98로 측정한 결과 2-anthramine에 대한 항돌연변이능은 돌미나리(99.8%), 깻잎(85.6%), 부추(79.6%), 쑥갓(79.4%), 시금치(74.5%)등이 높았다. S. typimurium TA100에서 2-anthramine의 돌연변이능에 대한 저해효과는 돌미나리(100.0%), 쑥갓(79.1%), 시금치 (71.3%) 등이 높았다. 직접작용 항돌연변이능을 S. typimurium TA98로 실험한 결과 2-nitrofluorene의 돌연변이능의 저해율이 높은 채소는 깻잎(82.8%), 참취 (82.3%), 쑥갓(56.6%)이었다. 또한 S. typimurium TA100 에서 sodium azide의 돌연변이능에 저해효과가 가장 큰 채소는 돌미나리 (91.8%)이었다. 따라서 MDA & BSA conjugation 반응, 지질과산화억제활성, DPPH 라디칼 소거 활성을 측정한 결과, 각 측정법에 따라 항산화효과에 차이가 있었으나 이들 7종의 채소류를 상용함으로써 광범위하게는 만성 성인병의 예방 및 치료에 효과를 볼 수 있을 것이라고 사료되며, 본 연구의 결과가 항산화성 및 항돌연변이성 기능성 식품을 개발할 수 있는 기초자료로 이용될 수 있으리라 사료된다.

• The Plant Pathology Journal
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• 제23권2호
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• pp.106-108
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• 2007

The Symptoms of witches' broom disease caused by phytoplasma including general stunting and yellowing, were observed in leafy lespedeza (Lespedeza cyrtobotrya M.) on Doam-myeon, Pyeongchang-gun, in 2006. Based on the sequence analysis of PCR-amplified 16S ribosomal DNA and 16S-23S spacer region DNA products using universal phytoplasma primers, the phytoplasma associated with leafy lespedeza witches' broom (LLWB) disease was identified as a member of Candidatus Pytoplasma trifolii. It was most closely related to alsike clover proliferation phytoplasma (99.8% similarity, accession no. AY390261), Candidatus Pytoplasma trifolii strain. RFLP patterns generated with AluI, HpaII clearly differentiated LLWB phytoplasma from the referenced phytoplasma strains, water dropwort witches' broom, mulberry dwarf, glehni aster yellow dwarf and jujube witches' broom. This paper is the first report on Candidatus Phytoplasma trifolii in leafy lespedeza identified at a molecular level.

• Journal of Nutrition and Health
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• 제28권9호
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• pp.825-833
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• 1995

This study was performed to investigate the influence of dietary fiber, which from whole food on the serum lipid level and bowel function in rats. The fiber sources of experimental diets were prepared by drying and milling of small water dropwort(WD), mugwort(MW), butterbur(BB) and apple(AP). Each fiber sources was mixed at the 15% level of the diet. The level of dietary fiber in WD, MW, BB diets was similar but that in AP diet was slightly low. Male rats of Sprague-Dawley strain were blocked into 5 groups ; WD, MW, BB, AP, FF(fiber free). The animals were fed ad libitum each of experimental diets for 37 days. Food intake of AP and FF groups were than other groups, FF group was lower than other grous in food efficiency ratio. MW group showed highest level in fecal weight and fecal water content and group has the longest transit time compare to other groups. Serum triglyceride level was not significantly different among groups. BB group showed the lowest level in the serum total cholesterol. WD and MW groups showed slightly higher level in the serum HDL cholesterol than other groups. Mucosa weight was not significantly different among groups. The activity of maltase in mucosa of small intestine was highest in FF groups. Absorption rates of calcium were not significantly different among groups. Absorption rate of magnesium was higher in FF group compare to others. And, absorption rates of phosphorus in MW and FF groups were slightly lower than other groups.