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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Korean Journal of Medicinal Crop Science
Journal Basic Information
Journal DOI :
The Korean Society of Medicinal Crop Science
Editor in Chief :
Volume & Issues
Volume 7, Issue 4 - Dec 1999
Volume 7, Issue 3 - Sep 1999
Volume 7, Issue 2 - Jun 1999
Volume 7, Issue 1 - Mar 1999
Selecting the target year
Changes of Growth Characteristics, Rosmarinic Acid and Essential Oil Contents according to Harvest time in Agastache rugosa O. Kuntze
Lee, Sung-Woo ; Kim, Jung-Bong ; Kim, Kwan-Su ; Kim, Myong-Suk ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 83~88
To find out proper harvest time and to select a variety having high yield and good quality, growth characteristics and contents of rosmarinic acid and essential oil were investigated according to harvest time of Agastache rugosa O. Kuntze collected in Korea. Only the number of flower cluster per plant among growth characteristics of 7 collections showed not significant difference. The range of dry matter weight of above-ground part used as crude drug was
and the weight of flower cluster and root was not significant among the plant parts of collections. Dry matter weight of top was the highest on Sep. 20, full-bloom stage. Rosmarinic acid contents among in 7 collections showed significant difference and the range were
in stem and
in root. The contents of rosmarinic acid and essential oil in leaf was 3.76%, 5.78% before flowering and 1.55%, 4.28% after flowering respectively. The total content of rosmarinic acid of all plant parts was decreased after flowering but that of essential oil was increased after flowering.
Effects of Planting Density and Pinching on Growth and Yield of Lycium chinense Miller grown in Vinyl House
Joo, Moon-Kap ; Jeon, Jae-Mok ; Kim, Bong-Gu ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 89~93
This study was carried out to investigate the effects of planting density, time and frequency of pinching on growth and yield of Lycium chinese Miller cultivated in vinyl house. This experiment was conducted at the experimental field of Cheong-yang Agriculture High School, Cheong-yang, Chung-nam province, in 1997 to 1998. The number of flowers, fruit setting number and dry weight of fruits per branch were increased as the spacings were wider, but the fruit yield per unit area was decreased up to the narrowest spacing plot of
. The good results of growth status and fruit yield was obtained at the early pinching in May 5. As the more frequent pinching were treated, the more number of flowers and fruits per branch were produced, showing increase of fresh and dry yield, because of much more branches per plot.
Micropropagation and RAPD Analysis of Somaclonal Variants in Lavandula spica cv. Marino
Li, Xian Ri ; Seong, Eun-Soo ; Kim, Il-Seop ; Yu, Chang-Yeon ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 94~100
To establish the mass propagation system of Lavandula spica cv. Marino, shoot tip, node, internode and leaf segment cultures were carried out. RAPD was applied to detect the somaclonal variation. Callus induction was very high in the medium supplemented with 1 mg/l 2.4-D, 2 mg/l NAA. especially and combined with 0.05 mg/l BAP from leaves. Shoot formation was high with
BAP or 4 mg/l BAP + 0.2 mg/l NAA from shoot tip. Shoot proliferation was 9.1 times in the
medium with 0.5 mg/l BAP and 0.01 mg/l NAA. Root formation was improved in NAA, which was the concentration of 0.1 to 1 mg/l and 1 mg/l IAA. Nursery survival rate was enhanced over 90% and growth was looked good in the acclimation soil consisting of peatmoss : vermiculite : perlite (1:1:1, v:v:v). Randomly amplified polymorphic DNA banding patterns based on polymerase chain reaction (PCR) were used to assess the genetic variation in plants regenerated from in vitro culture.
Effect on Quality of Pan-Fired Green Tea by 1st Pan-Firing Time
Park, J.H. ; Han, J.S. ; Choi, H.K. ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 101~106
These studies were carried out to investigate the quality of green tea processed by different 1st-pan-firing time and to select the best conditions of green tea processing. The results were as follows. At harvesting tea plant leaf, tea plants had 4 leaves, each leaf size was
, and weight of 100 buds was 40.2g. The content of moisture of green tea was decreased with the prolongation of 1st-pan-firing time, and the yield of green tea at 10 min. pan-firing time was the highest value of 20.12%. After processing green tea, 1st 10 min. pan-fired one had much more contents of total nitrogen(TN 5.41%) and total amino acid(T.A.A; 3,282mg/100g) and less content of tannin(13.22%) and caffeine(1.64%) than the other treatments. The content of chlorophyll and vitamin C went down with the extension of 1st pan-firing period. Sixteen kinds of free amino acid including theanine as a good taste component of green tea were isolated and measured by HPLC. T.A.A contents were in the range of
and among various pan-firing methods, 10 min. 1st pan-fired one had the highest content of T.A.A. The taste-determinants such as theanine, aspartic acid, serine, glutamic acid and arginine in green tea liquor, occupied as much as
of T.A.A.s. Among these, theanine was more than 50%, Lightness and yellowness of green tea were increased with delay of pan-firing time, while green color appeared to be more distinct at 10 min. 1st pan -firing time than other treatments. Besides, it gained the highest score of sensory evaluation among them. These above results suggested that 10 min. pan-fired green tea was considered to be the best level as pan-firing time of green tea processing.
Effect of Fermented (Oenanthe stolonifera DC) Extract on the Activity of Enzymes Related to Liver Function of Alcohol-administered Rats and Mice
Whang, Tay-Eak ; Lim, Hyun-Ock ; Lee, Jae-Wa ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 107~114
It has long been recognized that dropwort contains specific funtional subtances for protecting human liver and preventing and curing its diseases, and thus it has been widely utilized in traditional folk remedy. In the present study. fresh of fermented extract of dropwort shoots grown on dryland and fresh extract of those grown on flooded fie1d were fed to the rats suffering from acute, subacute or chronical toxication induced by alcohol administration, and their affects were investigated. Administration of alcohol to rats and mice for 2 days at 5ml of 30% EtOH/kg/day raised total cholesterol and total glyceride which were, however, great1y supressed when alcohol was administered to the laboratory animals previously fed on fresh or fermented extract of dryland dropwort, or fresh extract of flooded field-grown dropwort for 20 days, without significant differences among the extracts. The levels of alanine aminotransferase and aspartate aminotransferase which were raised by alcohol adminstration were also lowered by feeding dropwort extract, among which that of fermented dryland-grown one was more effective than the other two. Chronic alcohol toxication was induced to rats by administering 10% alcohol for 10 months and fermented dropwort extract or tap water was fed to the rats for 5 days. The rats fed on fermented dropwort extract were lower in total cholesterol by 40% and in tota1 glyceride by 60% than the control. Alanine aminotransferase and aspartate aminotransferase in the rats fed on fermented dropwort extract were decreased by 87.2% and 91.7%, respectively, compared to the control, and the rats recovered almost to normal. Activity of alkaline phosphatase, catalase, superoxide dismutase or glutathione peroxidase changed greatly by alcohol administration in the rats suffering from chronic as well as acute toxication. The extract of fermented dry land dropwort significantly lowed the activity of those enzymes, especially, alkaline phosphatase and superoxide dismutase. The present results suggesting the possible medicinal effect of fermented dropwort extract to liver diseases.
Analysis of Essential oil and Variation of Estragol content in Different Growth Stages of Agastache rugosa Kuntze
Ok, Hyung-Chung ; Song, Ji-Sook ; Chae, Young-Am ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 115~120
This study was carried out to compare the essential oil and its composition, and estragol content at different growth stages in the local collections of A. rugosa. Estragol was the major constituent in essential oil of all collections tested. Estragol content in essential oil was
in stem and there was no significant difference among nine local colletions. At full bloom stage, essential oil content was significantly higher than other growth stages and the highest content of estragol in essential oil was appeared at this stage. Especially, the content of essential oil in the inflorescence of Mokpo collection was 3.3%, which was the highest among the collections. Mokpo and Jindo collections produced much more essential oil and estragol than the other collections both at full bloom and ripening stages.
Competition of Adlay and Dominant Weeds, and Weed Control
Yoon, Seong-Tak ; Yi, Eun-Sub ; Kim, Ki-Jung ; Yoon, Seung-Gil ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 121~128
This experiment was carried out to establish effective weed control system in the cultivation of Coix lachryma-jobi L. The effect of annual weeds artificially transplanted on the growth of Coix lachryma-jobi L. were that the higher the density of weeds, the lower the yield considerably by reducing number of grains and tillers per plant. Among four weeds of Echinochloa crusgalli galli P. BEAUV., Digitaria sanguinalis
., Chenopodium album L., and Portulaca oleracea L., weed of Portulaca oleracea L. reduced adlay yield most by 182.6kg/10a and it was judged to be the most injurious weed to adlay production. Among four weed control systems, which are one herbicide treatment, one herbicide treatment + one cultivating work with cultivator, two times cultivating work with cultivator and two times hand-weeding, the control system of 'one herbicide treatment + one cultivating work with cultivator' showed the lowest amount of weed growth by 7.34 weeds per
in comparison with control plot of 35.00 weeds per
. Among four weed control systems, the system of 'two times hand-weeding' had much more amount of light penetration in adlay canopy with 791.9 mol than any other systems.
Ultrastructural Difference and Intercellular Transport of Metabolites in Old and New Bulb of Fritillaria pallidiflora
Gao, Wen-Yuan ; Fan, Lei ; Paek, Kee-Yoeup ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 129~137
The structure of amyloplasts and intercellular transport in the old and new bulbs of Frjtillaria pallidiflora were observed by means of electron microscope. The structure of internal membrane system was different between new and old amyloplasts. The active intercellular transport was observed in both new and old bulbs. The phenomena of encytosis and exocytosis always could be found in the cell membrane, and plasmodesmata established a symplasmic pathway for intercellular transport. Groups of vesicles often located at the ends of plasmodesmata, showing that they participated in the intercellular transport. These results laid a foundation for the further study on the mechanism of growth and development in Fritillaria pallidiflora.
Characteristics of Collected Lines and Effect of Environmental Conditions on Growth of Rehmannia glutinosa Lib.
Park, Chung-Heon ; Park, Chun-Geon ; Yu, Hong-Seob ; Seong, Nak-Sul ; Lee, Bong-Ho ; Chung, Rye-Pyo ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 138~142
Chinese foxglove (Rehmannia glutinosa) is receiving much attention as one of the principal medicinal crops and the demand for crude drug expands rapidly. This study was conducted to obtain the basic agronomic characteristics and cultivation information of Chinese foxglove. Morphological traits of several Chinese foxglove and their plant growth and yield were investigated under different environmental conditions. The tested lines exhibited clear morphological differences in leaves and roots representing their origins. Rapid root growth and weight increasement occurred in the middle of July. Optimum daylength and temperature conditions were investigated for the adequate plant growth of Chinese foxglove. Root growth was enhanced at
(day/night) with 13 hours daylength condition. Appropriate soil moisture and soil texture were
and loam soil, respectively.
Anticancer Compounds of Plantago asiatica L.
Moon, Hyung-In ; Zee, Ok-Pyo ;
Korean Journal of Medicinal Crop Science, volume 7, issue 2, 1999, Pages 143~146
The cytotoxicity-guided fractionation of the seed of Plantago asiatica extracts led to the isolation of four compounds, responsible for the cytotoxicity against four human tumor cell lines, i. e., A431 (Human Epidermoid carcinoma), KHOS-NP (Human Osteosarcoma). SNU-1 (Human stomach carcinoma), SNU-C4 (Human large intestine carcinoma). The structure were elucidated by the phsyco chemical data:
values of compound C2 were 14.6, 13.5, 10.3, 17.8
, and compound C3 and C4 showed activity, having
values ranging from 10.3 to 20.14