• Korean Journal of Food Science and Technology
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• v.32 no.4
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• pp.970-973
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• 2000

Heavy metal contents and parasite egg examination for the safety evaluation of dropwort(Oenanthe javanica) from the inside of Chonnam province(5 regions) and suburbs of Kwang-ju(1 region) were investigated. The contents of heavy metals(Hg, Pb, As, Cd, Mn, Zn, Cu) were determined by the Atomic Absorption Spectrophotometer and parasite eggs were examined to various internalparasites(F. hepatica, C. sinesis, G. lamblia, Cryptosporidium, A. lumbricoides and A. duodenale). First, Hg and As were detected in trace level and $0.003{\sim}0.01\;ppm$. Pb was not detected in all samples and Cd contents of dropworts were detected $0.014{\sim}0.087\;ppm$. The contents of 4 kinds of heavy metals(Hg, As, Pb and Cd) in dropworts cultivated in various regions(6 regions) were not detected or trace levels. Therefore, dropworts cultivated in Chonnam province and suburbs of Kwang-ju were free from contamination of heavy metals. Moreover, the result of parasite egg examination(Trematoda, Protozoa and Nematoda) was not detected in all samples.

• Journal of Food Hygiene and Safety
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• v.17 no.1
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• pp.1-7
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• 2002

This study was performed to investigate the possibility of water purification by a wild train of Oenanthe javanica DC. Three commercially available dishwashing detergents and a standard surfactant, linear alkylbenzene sulfonate (LAS), were used for this study. The experiment was done in 1.5 ι transluscent aquariums. The plants were distributed into various concentrations of detergents and various kinds of detergent in the separate aquariums. The wet weight of the plants was significantly decreased (p<0.05), and the visual vitality of the plants also decreased in 2 days. The higher the concentration of detergent was, and the more time the plants were exposed to the detergents, the more decrease of growth was observed. The pH value of the culture media decreased in 2 days and in 4 days, then slightly increased in 6 days. However, the pH value of the media did not return to the initial neutral level of pH in 6 days. The pH value of the culture media containing the LAS remarkably increased in 6 days and increased to a neutral pH value in 18 days (p<0.01) as the pH of the other culture media. The chemical oxygen demand (COD) of the culture media gradually increased over the 4 days. A decrease of COD was observed in 6 days, but no tendency was observed between 12 and 18 days. The detergent in the culture media was highly significantly decreased in 2 days (p<0.01) and gradually decreased after this. After 6 days the remaining detergent was 12.4∼23.7% from the various levels of initially added concentration, and 22.4 ∼34.2% from the flour kinds of detergents. These results show that the reduction of detergent was caused by Oenanthe javanica and the effect was significant during the first 6 days when the plants were still growing well. These results indicate that the plant purifies contaminated water for several days and the effect could be variable according to the level of contamination and the environment in which the plant grows.

• Journal of the korean veterinary medical association
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• v.13 no.6
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• pp.393-395
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• 1977

Ranunculus species, a poisonous plant that grow in the field and the dales throughout the country has been recommended in folklore for the therapy of traumatic inflammation. A chloroform extract of this plant has been shown to inhibit the growth of severa

• Journal of the Korean Society of Food Science and Nutrition
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• v.19 no.4
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• pp.311-314
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• 1990

The volatile fraction of Oenanthe stolonifera DC. was extracted by a steam distillation under the atmospheric pressure and analyzed by gas chromatography(GC) and gas chromatogra-phy/mass spectrometry(Gc-MS) The experimental results revealed the presence of 63 volatile components. Among them 39 components identified were composed of 20 hydrocarbonss(61.94%) 9 alcohols(8.76%) 3 ketones(11.5%) 1 ester(1.34%) 1 aldehyde (2.29%) and 5 miscellaneous \ulcorner92.35%) The major volatile components of Oenanthe stolonifera DC. were limo-nene(12.12%) pulegone(94.8%) germacrene D(8.34%) and $\beta$-pinene(7.68%)

• Journal of Bio-Environment Control
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• v.31 no.4
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• pp.423-431
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• 2022

Due to increase of interest in 'carbon neutrality', attempts at agricultural use of CO₂ are increasing. In this study, we used the dry-ice made by CO₂ as by-product in thermoelectric power plant on CO₂ fertilization for production of leafy vegetable in greenhouses. The dry-ice was supplied on three leafy vegetable farms (Allium tuberosum Rottl. ex Spreng, Aster scaber, and Oenanthe stolonifera DC.) located in Hadong, Gyeongsangnamdo. Two greenhouses were used in each leaf vegetable crops, one greenhouse used as the control (non-treatment), other greenhouse used as supplied CO₂. For CO₂ fertilization, a gas sublimated from dry ice was supplied to the greenhouse using a specially designed prototype supply machine. A. tuberosum greenhouse has no difference of CO₂ concentration between the control, and CO₂ fertilization and shown high CO₂ concentration both greenhouses. However, the CO₂ concentrations in A. scaber and O. stolonifera greenhouses were increased in CO₂ fertilization treatment. The growth of A. scaber and O. stolonifera were increased in CO₂ fertilization, and the yield also increased to 36% and 25% than the control, respectively. As a result of economic analysis, the A. scaber has increase of income rate, however A. tuberosum and O. stolonifera has decreased income rate. Thus, the use of the dry-ice made by CO₂ as by-product in thermoelectric power plant has possibility to increase productivity of the leafy vegetable in greenhouse and have agricultural use value.

• Korean Journal of Plant Resources
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• v.37 no.4
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• pp.321-359
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• 2024

To conduct ethnobotanical study that grow wild in biosphere reserves or are traded in nearby traditional markets, we collected and analyzed traditional knowledge information on vascular plants that live in Mt. Seorak and Mt. Halla. As a result, the ethnobotanical plants investigated in Mt. Seorak consisted of 102 families and 489 taxa. The ethnobotanical plants investigated in Mt. Halla consisted of 118 families and 374 taxa. Both ethnobotanical plants from Mt. Seorak and Mt. Halla were most widely used for oriental medicine and treatment, and leaves were the most used organ. Differences in diversity by family of ethnobotanical plants inhabiting Mt. Seorak and Mt. Halla showed significant differences only in other use. The ethnobotanical plants traded at the traditional market near Mt. Seorak consists of 59 species in 34 families and 56 genera. The ethnobotanical plants traded at the traditional market near Mt. Halla consists of 102 species in 49 families and 94 genera. All ethnobotanical plants traded in traditional markets were most often used for oriental medicine and treatment, and stems were used most often in the traditional market near Mt. Seorak, and leaves were used most often in the traditional market near Mt. Halla.

• Korean Journal of Plant Resources
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• v.32 no.5
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• pp.448-456
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• 2019

Angelica gigas Nakai (Korean danggui), a member of the Umbelliferae family, is a Korean traditional medicinal plant whose roots have been used for treating gynecological diseases. In this study, the growth characteristics and decursin contents of Angelica gigas Nakai were compared according to the difference of cultivation area. As a result, the root diameter of A. gigas Nakai was the highest in the Duil-ri, and the number of the root of A. gigas was the highest in Topdong-ri. The fresh weight and dry weight of Angelica gigas Nakai was the highest in the Topdong-ri. The soil properties of cultivation area was Sandy Clay Loam and the content of organic matter was the highest in Topdong-ri. The total content of decursin was 5.31% the highest in Duil-ri. And 4.96% in Namhoeryong-ri, 4.41% in Kosun-ri, 4.25% in topdon-ri, 3.96% in Gugok-ri, and 3.64% in Gongjeon-ri was accumulated.

• Journal of the Korean Society of Food Science and Nutrition
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• v.40 no.2
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• pp.316-320
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• 2011

This study was conducted to investigate the antioxidant compounds and antioxidant activity on the dropwort (Oenanthe javanica) and its solvent fraction. The dropwort was extracted with 70% (v/v) ethanol, and then partitioned using the solvents of hexane, chloroform, ethyl acetate, butanol, and aqueous. The ethyl acetate fraction contained the highest phenolic and flavonoid of 240.61 mg GA eq/g and 105.57 mg catechin eq/g, followed by ethanol extract of 37.50 mg GA eq/g and 26.50 mg catechin eq/g, respectively. The DPPH radical scavenging activity ($IC_{50}$) on the solvent fractions increased in the order of ethyl acetate, butanol, ethanol extract, chloroform, aqueous, and hexane with 0.08, 0.58, 1.07, 2.43, 2.47, and 3.31 mg/mL, respectively. The ABTS radical scavenging activity was the highest value of 382 mg AA eq/g in ethyl acetate fraction. Reducing power and chelating effect on the ethanol extracts and its solvent fraction were in range of 0.23~0.75 and 0~32.01%, respectively. Hydroxyl radical scavenging activity ($IC_{50}$) was the lowest value of $26.71\;{\mu}g$/mL in ethyl acetate fraction.

• Journal of Food Hygiene and Safety
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• v.26 no.4
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• pp.370-376
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• 2011

This study was performed to investigate the antioxidative effect of Ligusticum chuanxiong Hort extracts (LCE) against the hyperlipidemia of high-fat diet-fed obese rats. The rats were divided into the three groups (normal group, control group and sample group) to perform the experimental research. 1.5 ml/kg of LCE was intraperitoneally administered into the sample group for 21 days. The equal dose of 0.9% saline was intraperitoneally administered into the normal group and the control group. On day 22, they were anesthetized with ether and dissected. The levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT) were examined in serum of rats. Superoxide dismutase (SOD) was measured in mitochondrial fraction. Malondialdehyde (MDA), catalase (CAT), and glutamate peroxidase (GPx) were determined in liver homogenate. High-fat diet markedly increased the levels of AST, ALT and MDA, significantly decreasing those of SOD, CAT and GPx. But Ligusticum chuanxiong Hort-pretreatment decreased the levels of AST, ALT, and MDA. increasing those of SOD, CAT and GPx. These results demonstrated the antioxidative effects, suggesting that LCE could be the candidate for the functional material.

• Korean Journal of Food Science and Technology
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• v.34 no.2
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• pp.244-248
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• 2002

The effects of extracts from bean sprout (Glycine max), dropwort (Oenathe javanica) and radish (Raphanus sativus Var. hortensis for. acanthiformis) by solvent separation on alcohol dehydrogenase (ADH) activity in vitro were investigated. The extracts were obtained from alcohol extracts of bean sprout, dropwort and radish, followed by solvent separation. Aqueous fractions facilitated much higher ADH activity than organic fractions. The facilitating rates of bean sprout, dropwort and radish in aqueous fractions were 125.75%, 104.94% and 87.63%, respectively. Basic fractions showed the highest facilitating rate with about 40%. Also other fractions showed below 20% facilitating rate and didn't show great difference from organic fractions. Phenolic fractions didn't show great effect on ADH activity.