간행물
한국약용작물학회지 KCI 등재 Korean Journal of Medical Crop Science
- 발행기관 한국약용작물학회
- 자료유형 학술지
- 간기 격월간
- ISSN 1225-9306 (Print)2288-0186 (Online)
- 수록기간 1993 ~ 2019
- 주제분류 농수해양 > 농학 농수해양 분류의 다른 간행물
- 십진분류KDC 524DDC 633
권호리스트/논문검색
Vol.18 No.2 (2010년 4월) 10건
1.
2010.04
서비스 종료(열람 제한)
As cool-season plant, Panax ginseng C. A. Meyer is planted under shade-installation with tall front and low rear. However, at different planting positions, distinct differences come out because ginseng grows at the same position within 3~5 years and the growth circumstance changes a lot by the shade-installation. So, in this study, changes of temperature, photosynthesis and chlorophyll fluorescence with varieties of shading material and planting position were investigated. Light transmittances by polyethylene shade net and silver-coated shading plate as planting materials were measured according to different planting positions. Photosynthetic rate and chlorophyll fluorescence were measured by LI-6400-40 (Li-Cor). According to different planting positions, light intensity was higher in silver-coated shading plate than in polyethylene shade net, and higher at front than rear. Also, photosynthetic rate showed the same tendency, which had a positive correlation to light intensity. But this treatment caused a lower Fo compared with polyethylene shade net because of the stress by light and temperature. Also, Fv/Fm and ETR were higher in silver-coated shading plate. Fo was similar at front and rear according to silver-coated shading plate and ETR was higher at front.
2.
2010.04
서비스 종료(열람 제한)
This study was carried out to clarify the difference of growth characteristics and ginsenoside content in 5-year-old ginseng root grown by direct seeding and transplanting cultivation. Root weight per plant of direct seeding cultivation was lower than that of transplanting cultivation. Fresh and dry matter partitioning ratio of direct seeding cultivation was high in main root and low in lateral because direct seeding cultivation root elongated the length of main root, while it suppressed the growth of lateral root. Total amount of ginsenoside contents by direct seeding and transplanting cultivation were 362.8 and 320.3 mg in main root, 188.6 and 548.8 mg in lateral root, 170.7 and 273.8 mg in fine root. Its contents of whole root per plant were 722.1 and 1142.9 mg by direct seeding and transplanting, respectively.
3.
2010.04
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This experiment was carried out to select suitable organic matter in To-jik nursery (self soil nursery) for complement To-jik nursery's defects that are deterioration of raw material by poor quality of seed ginseng and reduction of the quantity in seed ginseng production. Organic matter used were Yacto, rice bean, defatted rice bran, soybean cake and their mixture. As follows, bulk density in soil physical property by treating organic composts was the greatest in soybean cake and the next was followed by mix, Yacto, defatted rice bran, and rice bran treatment in order. Soil pore space ratio was totally the opposite; that was rice bran the first and followed by defatted rice bran, Yacto, mix and soybean cake treatment. The incidence rate of damping off by treating organic composts was 1.5% in both soybean cake and mix while the others was 1.0%. Emergence time was the same among treatment on April 16 and Emergence rate was the highest at 73% in Yacto. There was no significant differences among treatment in the growth of aboveground part but it was a little better in defatted rice bran treatment. In Yacto treatment, the growth of underground part, total root number per kan, rate of first grade ginseng seedling, and rate of usable ginseng seedling etc. were entirely higher but there was little differences. Using defatted rice bran was slightly lower in productivity compared to Yacto, but the possibility was high as a alternative for Yacto in a view of managing cost down.
4.
2010.04
서비스 종료(열람 제한)
Enhancement effect of ultrasonification process on UV-protection and skin-whitening activities using Centella asiatica L. Urban extract was investigated. Cytotoxicity of the extracts measured on human skin fibroblast cells, CCD-986sk, and then, ultrasonification associated extracts showed 5~9% lower cytotoxicity then normal crude extracts on 1.0 mg/ml of highest sample concentration. The associated extrats showed highest inhibition activity of hyaluronidase on 1.0 mg/ml of concentration as 54.2%. Also, the associated extract reduced expression of MMP-1 on UV-irradiated CCD-986sk cells down to 100.2% from 136.1%, and revealed high inhibitory potency on tyrosinase as 74.6% by adding 1.0 mg/ml of concentration. Ultrasonification associated extract showed strong inhibition effect of melanin production on Clone M-3 cells as 84.2% by adding 1.0 mg/ml of concentration. From the preliminary observations, we considered that the extracts from C. asiatica could be potent natural materials for skin-whitening and anti-aging agent, and could enhance the activities by ultrasonification process.
5.
2010.04
서비스 종료(열람 제한)
The polymorphism and the genetic relationships among 32 genetic resources of genus Nelumbo from Korea, Japan, China, USA, India, Thailand and Gabong were thoroughly investigated and extensively examined using ISSR markers. Out of 103 loci detected overall, 94 were identified to be polymorphic with a rate of 91.2%. The genetic similarity matrix revealed a wide range of variability among the 32 accessions, spanning from 0.227 to 0.833. The study findings indicate that the Nelumbo accessions have a high genetic diversity, and accordingly carry a germplasm qualifying as good genetic resources for cross breeding. According to the clustering analysis, different subspecies, N. nucifera and N. lutea, were divided into independent groups and all of the N. nucifera accessions could be classified into five categories. Compared to RAPD analysis, ISSR method showed a clearer picture of polymorphism among the accessions and exhibited a definite distinction even among the subspecies. In this respect, ISSR analysis is considered to be more effective in differentiating the accessions and subspecies of the genus Nelumbo than RAPD test.
6.
2010.04
서비스 종료(열람 제한)
Cultural practices of Asparagus cochinchinensis in highland area were performed for a potential medicinal crop. These studies were examined to propagation methods, planting densities, nitrogen treatments, and cropping years. The results are summarized as follows. The adequate number of buds per tuberous root was 4 for vegetative propagation because the number of tuberous root harvested was 16.8 and the yield was also the highest, exhibiting 1,060 kg/10a. The suitable planting time for vegetative propagation was later than early April. If the earlier tuberous roots were planted, the less they emerged. The highest emergence rate was obtained from the planting density of 30×20cm as 97.2% while the yield was highest in the 30×15cm density, exhibiting 1,883 kg/10a with emergence rate at 94.9. It seemed that the higher planting density promoted plant height growth and yield in Asparagus cochinchinensis. The highest fresh weight was recorded at 6 kg/10a of nitrogen fertilizer into the sandy loam soil compared to the level of 0, 3, 9 kg/10a. The yield was increased with cropping years. However, the proper harvesting time was the second year of cultivation because the rate of weight increase was maximized in the 2-year-old tuberous root. The yield in the third year was decreased as compared to that of the second year.
7.
2010.04
서비스 종료(열람 제한)
Eleuthero(Eleutherococcus senticosus Maxim.) cortex is well known as a herb medicine for tonic. This study was performed to improve the quality of dried E. senticosus cortex. Investigation of quality factor and contents of efficient compounds under different steaming times and drying methods were performed to determine the proper processing and drying conditions of Eleuthero cortex harvested on March in annual stems. The proper steaming time for peeling bark to make high quality Eleuthero cortex took less than 20 mins. Eleutheroside B and E contents among drying methods were significantly different at 5% level DMRT. The 50℃ heat drying was the most advisable condition for drying, when drying and keeping contents of effective compounds.
8.
2010.04
서비스 종료(열람 제한)
Korean Sophora japonica has been found to posses an anti-inflammatory activity. In this study, Korean Sophora japonica extract, rutin, was used to know whether rutin inhibits to produce inflammatory mediators NO and TNF-α from the mouse peritoneal macrophages that were treated an inflammatory agent LPS. The rutin-1 hr pretreated macrophages were incubated with LPS for 0.5~5 hrs, and then collected the supernatant and the cell lysate for measurements of the level of iNOS, NO, TNF-α mRNA, TNF-α, and p-NF-kB. Minimal and maximal effective doses of the rutin on them were 1 and 100μg/ml, respectively. The maximal effective dose of rutin certainly inhibted the productions of iNOS, NO, TNF-α mRNA, TNF-αand p-NF-kB from the LPS-treated macrophages (p〈0.0001). Its ED50 for inhibition of TNF-α mRNA and p-NF-kB was 5μg/ml, and for iNOS, NO, and TNF-α was 10μg/ml. The rutin did not have any cytotoxic effect. As the results, the Sophora japonica rutin could be a good candidate for an anti-inflammatory action.
9.
2010.04
서비스 종료(열람 제한)
The antioxidant and anticancer activities of Phellinus linteus, Inonotus obliquus, and Pleurotus ostreatus according to extraction methods were measured. The contents of polyphenolic compounds were higher in fermented extracts than those in water extracts. The contents were 192.4mg/100 ml for Inonotus obliquus vinegar, 186.9 mg/100 ml for Phellinus linteus vinegar, and 156.5 mg/100 ml for Pleurotus ostreatus vinegar, respectively. EDA(electron donating ability) in Phellinus linteus that was highest among mushrooms was 83.9% in the water extract and 96.8% in the fermented extract. The growth of stomach cancer cells, SNU-719 was inhibited 62.4%, 65.5%, and 53.0% by Phellinus linteus vinegar, Inonotus obliquus vinegar, and Pleurotus ostreatus vinegar, respectively and also the growth of liver cancer cells, Hep3B was inhibited 67.1%, 68.3%, and 57.6% by Phellinus linteus vinegar, Inonotus obliquus vinegar, and Pleurotus ostreatus vinegar, while the growth of normal cell, DC2.4 was not affected. Even though Phellinus linteus and Inonotus obliquus showed higher inhibition in cancer cell growth, Pleurotus ostreatus can be efficiently used for antioxidant and anticancer activities due to their cheap price in the market.
10.
2010.04
서비스 종료(열람 제한)
This study was carried out to determine changes in general chemical composition, free sugars, physicochemical properties of extract, and ginsenoside contents depending upon processing methods. Ginseng roots harvested from the same field were employed for the processing into white ginseng (WG), taegeuk ginseng (TG), red ginseng A (RGA, steamed one time), and red ginseng B (RGB, steamed three times). The fat content decreased by increasing duration of treatment and number of steaming treatment. On the other hand, there was no significant variation in contents of ash and carbohydrate depending on processing methods. Contents of sucrose and maltose was higher in Taegeuk and red ginseng than those of white ginseng. Steamed ginseng root (taegeuk and red ginseng root) showed higher amount of water extractable solid than the unsteamed white ginseng, but the variation of crude saponin content was not distinctive depending on processing methods. The contents of total ginsenosides increased by the order of white, taegeuk, red A, and red B root. In summary, chemical composition and total ginsenoside content were different according to part of root and processing methods, thus implies the importance of quality control as well as pharmacological activity of ginseng root.
