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        검색결과 9

        3.
        2019.06 KCI 등재 구독 인증기관 무료, 개인회원 유료
        본 연구는 국내에서 육종한 품종인 ‘Pink Aurora’ 장미를 보존화로 가공하는 기술의 개발에 관한 것으로 탈수와 탈색 처리를 위한 에탄올의 침지시간과 염색을 위한 보존용액의 온도와 침지시간를 구명하고자 수행하였다. 탈수는 먼셀 H값에서 붉은 색이 완전히 빠지고 시간이 길어질수록 황색이 짙어짐을 고려해 볼 때 12시간이 가장 효과적이었다. 보존용액 처리에 서는 채도값을 나타내는 C의 차이는 크지 않았지만 온도가 높고 처리시간이 길어질수록 색의 맑기가 높아졌다. 낮은 온도 에서 침지시간이 길어짐에 따라 화형의 감소율이 낮았다. 24 시간 건조 후 무게는 모든 온도 처리에서 침지시간이 길어질 수록 53~47% 감소하였고, 건조 48시간의 25℃에서 6시간 침 지에서 73%, 24시간 침지에서 68%의 감소율을 나타내 침지시간이 길어질수록 감소율이 낮았다. 따라서 에탄올로 12시간동 안 탈수하여 염색 보존액을 25℃에서 24시간동안 처리하는 것이 가장 효과적이라고 생각된다.
        4,000원
        4.
        2018.10 서비스 종료(열람 제한)
        Background : Hair care products are mainly prepared by mixing chemicals and natural extracts, such as those obtained from medicinal plants. The purpose of this study was to investigate the effects of 70% ethanolic extracts from the whole plant of Houttuynia cordata and tymosin β4 powder mixtures on the growth of HaCat cells, hair follicle dermal papilla cells (HFDPC), and 3T3-L1 cells. Methods and Results : In the ratio of tymosin β4 more than 10% concentrations, the cell viability of HaCat and HFDPC cell were increased by higher tymosin β4 concentrations. The mixtures of 70% ethanolic extract of H. cordata and tymosin β4 had no toxicity potential to 3T3-L1 cell viability. In this test, the content of thymosin β4 was higher concentration, as the anti-inflammatory effect was increased. The lipid differentiation of 3T3-L1 cells adipogenesis rate significantly increased in a treatment concentration-dependent manner. Conclusion : These results suggest that a optimal mixture ratio of hair growth effect was 70% ethanolic extract of H. cordata solution 50% and tymosin β4 solution 50%. This mixture solution could be used in the development of hair care products.
        5.
        2018.10 서비스 종료(열람 제한)
        Background : Lentinula edodes contain a variety of biosurgical substances and a large amount of beta-glucan, which is known for immune-boosting effects. L. edodes was cultivated in nation wide of Korea. And, almost farmhouse using imported strains from Japan and China. Therefore, this study was conducted to prove the excellence of domestic strains to replace imported strains. Methods and Results : In this study, beta-glucan content, which is a unique immune component of domestic and imported strains, was compared to the native immune component of domestic L. edodes strains and imported L. edodes strains. In this test, the Korean strains such as Baekwahyang, Sanjo303ho, Suhyanggo, Cheonbaekgo, and the imported L. edodes strains is Mori290, Moriyujiro. The analysis results are as followings. The proximate compositions were ranged 3.74 - 5.50% in ash, 15.22 - 25.84% in crude protein, 0.93 - 1.43% in crude fat, 6.95 - 9.89% in crude fiber of Korean L. edodes strains and imported L. edodes strains, respectively. Major minerals of Korean L. edodes strains and imported L. edodes strains were potassium (684 - 904.05 ㎎%), calcium (0.46 - 0.65 ㎎%), sodium (8.77 - 11.01 ㎎%), magnesium (30.45 - 33.93 ㎎%). The content of beta-glucan from Korean L. edodes strains and imported L. edodes strains were ranged from 35.69% to 38.68%. Conclusion : As the results of chemical analysis were showed the no difference between Korean L. edodes strains and imported L. edodes strains. These results are meaning that the Korean L. edodes strains quality of the components is not inferior to imported strains. We expected that the Korean L. edodes strains could replace imported L. edodes strains.
        6.
        2018.10 서비스 종료(열람 제한)
        Background : Lentinus edodes are highly utilized as food and medicine, and are known to be suitable for preventing diabetes, high blood pressure and arteriosclerosis. L. edodes were known for prevent obesity metabolisms. Also, present consumers persue the healthy and thin condition. Our research perpose is determined the prevent obesity using L. edodes extracts. Methods and Results : The effect on adipocyte differentiation and the accumulation of fat in the L. edodes extract on 3T3-L1 cell preadipocyte and cell toxicity were tested. We measurement to evaluate the inhibition effects of L. edodes extracts on the growth of 3T3-L1 cell adipocytes. The tested cells were treated with L. edodes extracts by ethanolic extracts (concetrations at 10, 50, 100 ㎍/㎖) and hot water extracts (temperature at 50℃, 60℃, 70℃, 80℃, 90℃), respectively. Cell toxicity did not affect the growth of cells growth in hot water extracts. Intracellular lipid accumulation was measured by Oil red O method. The inhibitory effect on 3T3-L1 cell by treatment different ethanolic extract concentrations and temperature of hot-waters. The optimal inhibitory conditions of lipid accumulation by ethanoic extracts and hot water extracts were determined the 32.5% ethanol extracts and 33.3% 50℃ hot water extracts. Conclusion : The results of this study showed that L. edodes extracts had an potentials for reduce lipid accumulation activities. Further more we will examine about the mechanisms of anti obesity activities from L. edodes extracts. This results provides that the basis for antiobesity foods or medicines using Lentinus edodes extracts.
        7.
        2018.10 서비스 종료(열람 제한)
        Background : Domestic use of cosmetics has largely been dependent on imports for the opening of cosmetics raw materials, but research has been progressing actively on natural ingredients to develop new materials. Methods and Results : The extracts of hot–water and ethanol extracts from Stachys sieboldii were tested cytotoxicity, inhibition of melanin biosynthesis and NO production activity. The cytotoxicity of the hot water extract of S. sieboldii were 98.4, 95.0, 93.9 and 90.6%, respectively, when treated with 10, 50, 100, 500 ㎍/㎖. Cytotoxicity of S. sieboldii ethanol extract was 97.1, 95.3, 94.6 and 94.4%, respectively, at the concentrations of 10, 50, 100 and 500 ㎍/㎖. Melanin biosynthesis inhibitory effect of α-MSH at 100 μM increased to 118.1% in melanin, but decreased to 92.3% in S. sieboldii ethanol extract. NO production inhibition increased to 109.2% when treated with LPS and was 103.3% at 500 ㎍/㎖ of hot water extract and 105.9% at 500 ㎍/㎖ of ethanol extract of S. sieboldii. Conclusion : The ethanol extract of S. sieboldii did not showed the cytotoxicity, and reduce NO production. Therefore, ethanol extract of S. sieboldii had an potentials for developing whitening cosmetics.
        8.
        2018.10 서비스 종료(열람 제한)
        Background : Lentinula edodes (Shiitake mushroom) is a common edible mushroom with a number of potential therapeutic and nutritional applications. However, the growth of Lentinula edodes were classified in accordance with nutrients have no differences in seemingly. The growth characteristics of L. edodes were difficult to find out influenced about between oak and medium. Quantitative real-time polymerase chain reaction (qRT-PCR) is a powerful tool to analyze the mechanisms underlying the biosynthetic pathways of these substances. Methods and Results : A gene encoding amylase AMY was successfully isolated from the L. edodes using RT-PCR. The putative amino acid sequence encoded by AMY showed the highest the homology with the sequence of glycoside hydrolase family 13. We compared the amylase activity and levels of gene expression in L. edodes grown on different breeding materials (oak, and medium), strains from oak (Chunbaegko, and Mori 290), and strains from medium (Tanong, and Carrefour), respectively. Quantitative reverse transcription PCR utilizing pairs of primers specific for AMY gene expression shows that the expression of AMY was induced polysaccharide, and increased during the process of fruiting body formation in L. edodes by medium compositions. Conclusion : This result indicates that amylase may play an important role of growth in morphogenesis of medium condition growth mushroom. The present work will contribute to RT-PCR studies in L. edodes.
        9.
        2018.10 서비스 종료(열람 제한)
        Background : Angelica acutiloba is a perennial herb from the family Umbelliferous. The root was used as a substitute for the crude drug. As a by-product of making cheese from whey, it has many proteins and nutritional components, but it has a drawback in that it must be stored in a refrigerator because the storage facility is short. In order to solve such problems, an attempt is made to solve the environmental and economic problems by producing a liquid fertilizer fermented with a large amount of whey. Methods and Results : In this study, we studied the fermentation of wheat germ with lactic acid bacteria (Lactobacillus brevis) and yeast (Saccharomyces cerevisiae). The preliminary experiment was conducted to determine the test concentration of 300 fold dilution and 500 fold dilution. As a result, the application of 300 times dilution liquid prepared by fermentation of whey using lactic acid bacteria showed higher growth and higher growth rate with higher number of leaves and branches. Growth response of the 500 fold dilution was higher than that of the control, but the growth of 300 fold dilution showed the highest. Conclusion : Therefore, it is considered that the 300 fold dilution of Lactobacillus can be used as a substitute for compost when cultivating medicinal plants.