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        검색결과 13

        1.
        2017.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        In the 21st century, information and communication technology (ICT) worldwide presents a new vision for agriculture. Time and place, as well as the high-tech industry, to overcome barriers to the fusion of the so-called "smart agriculture," are changing the agricultural landscape. Core container production in precision agriculture for mushroom cultivation, optimal temperature, humidity, irradiation, self-regulation of factors such as carbon dioxide, and environment for mushroom cultivation were adopted. Lentinula edodes (shiitake) is an edible mushroom native to East Asia, cultivated and consumed in many Asian countries. It is considered to be medicinal in certain practices of traditional medicine. We used different controlled light sources (Blue-Red-White-combined LED, blue LED, red LED, and fluorescent light) with different LED radiation intensities (1.5, 10.5, and 20.5 μmol/㎡s for LEDs) to compare growth and development. Mushrooms were treated with light in a 12-hour-on/ 12-hour-off cycle, and maintained in a controlled room at 19~21°C, with 80~90% humidity, and an atmospheric CO2 concentration of 1,000 ppm for 30 days. Growth and development differed with the LED source color and LED radiation intensity. Growth and development were the highest at 10.5 μmol/㎡s of blue LED light. After harvesting the fruit bodies, we measured their weight and length, thickness of pileus and stipe, chromaticity, and hardness. The 10.5 μmol/㎡s blue-LED-irradiated group showed the best harvest results with an average individual weight of 39.82 g and length of 64.03 mm, pileus thickness of 30.85 mm and pileus length of 43.22 mm, and stipe thickness of 16.96 mm with fine chromaticity and hardness. These results showed that blue LED light at 10.5 μmol/㎡s exerted the best effect on the growth and development of L. edodes (shiitake) mushroom in the ICT-system container-type environment.
        4,000원
        2.
        2017.10 구독 인증기관·개인회원 무료
        Information and communication technology(ICT) around the world in the 21st century presents a new vision of agriculture. Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called “smart agriculture” is changing the landscape of agriculture. Precision Agriculture’s core container production for the mushroom cultivation temperature, humidity, irradiation, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. The Lentinula edodes (shiitake) is an edible mushroom native to East Asia, which is cultivated and consumed in many Asian countries. It is considered a medicinal mushroom in some forms of traditional medicine. The fungus was first described scientifically as Agaricus edodes by Miles Joseph Berkeley in 1877. It was placed in the genus Lentinula by David Pegler in 1976. We controlled different light source (Blue-Red-White combined LED, blue LED, red LED and fluorescent light) with different intensity of LED irradiation (1.5, 10.5, 20.5 μmol/m2s for LEDs) to compare growth and development. Lights were treated with 12 hour on/ 12hour off cycle maintained in a controlled room with 19 ~ 21oC temperature, 80~90% humidity, and 1,000 ppm CO2 atmosphere concentration for 30 days. Growth and development differed from the LED color source and intensity of LED irradiation. Growth and development was most effective in 10.5 μmol/m2s for blue LED. All LED light sources showed less growth and development in lowest intensity of irradiation, which indicates that higher than 1.5 μmol/m2s for LED is not effective. After harvesting fruit bodies, we measured their weight and length, thickness of pileus and stipe, chromaticity, and hardness. 10.5 μmol/m2s blue LED group was the best result of harvest with average individual weight (24.7g) and length (61.98mm), thickness (29.93mm) of pileus and length (33.60mm), thickness (16.86mm) of stipe with fine chromaticity, hardness. This results show us that 10.5 μmol/m2s blue LED was the best effect on growth and development of Lentinus edodes (shiitake) mushroom’s ICT system container type environment.
        3.
        2017.10 구독 인증기관·개인회원 무료
        Information and communication technology(ICT) around the world in the 21st century presents a new vision of agriculture. Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called “smart agriculture” is changing the landscape of agriculture. Precision Agriculture’s core container production for the mushroom cultivation temperature, humidity, irradiation, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. Auricularia auricula-judae, known as the Jew's ear, wood ear, jelly ear or by a number of other common names, is a species of edible Auriculariales fungus found worldwide. The fruiting body is distinguished by its noticeably ear-like shape and brown colouration. The fungus can be found throughout the year in temperate regions worldwide, where it grows upon both dead and living wood. We controlled different light source (Blue-Red-White combined LED, blue LED, red LED and fluorescent light) with different intensity of LED irradiation (1.5, 10.5 and 20.5 μmol/m2s for LEDs) to compare growth and development. Lights were treated with 12 hour on/ 12hour off cycle maintained in a controlled room with 19 ~ 21oC temperature, 85~95% humidity, and 1000ppm CO2 atmosphere concentration for 30 days. Growth and development differed from the LED color source and intensity of LED irradiation. Growth and development was most effective in 1.5 μmol/m2s irradiation for blue LED. All LED light sources showed less growth and development in highest intensity of irradiation, which indicates that higher than 20.5 μmol/m2s for LED is not effective. After harvesting fruit bodies, we measured their weight, length, width, thickness and chromaticity of fruit bodies. 1.5 μmol/m2s blue LED group was the best result of harvest with average individual weight (5.38g), length (65.37mm), width (56.87mm) and thickness (13.51mm) with fine chromaticity. This results show us that 1.5 μmol/m2s blue LED was the best effect on growth and development of Auricularia auricula-judae mushroom’s ICT system container type environment.
        4.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Timing, place, and the high-tech industry to overcome barriers to the introduct of the so-called “smart agriculture”. The core factors of precision agriculture, including temperature, humidity, location information, and real summary information, are all significant for ICT controlling technique. The system is a four-season container allowing mushroom product, humidity, illumination, and factors such as carbon dioxide were regulated to create the optimal environment for mushroom cultivation. Hericium erinaceum (also called Lion's Mane Mushroom, Bearded Tooth Mushroom, or Bearded Tooth Fungus) is an edible and medicinal mushroom in the tooth fungus group. During approximately 40 days of incubation, 1.4 kg of oak sawdust was used as the test medium. The humidity, temperature, and CO2 density were maintained at >85–95%, 18–20oC, and 700–1,000 ppm, respectively, in the container type culture system. The time for primordium formation was observed to be 4–7 days. The amount of fruitbody production was 74–95 g per bag. This technique will be used to establish a new community support program, in conjunction with international movement, domestic sales and exports are also planned.
        3,000원
        5.
        2015.09 구독 인증기관 무료, 개인회원 유료
        A 5-year-old, 8.95 kg, female Schnauzer presented anorexia with a 3-day history and increased heart sound intensity. Based on the clinical and echocardiographic findings along with the positive blood culture result, the dog was diagnosed with infective endocarditis (IE). Using proper antibiotics treatment, clinical signs were improved within 3 days and resolved within 1 week. For exact identification of the causative agent, multiplex polymerase chain reaction (PCR) and PCR-restriction fragment length polymorphism (RFLP) methods were performed. The etiological agent was confirmed as Staphylococcus pseudintermedius with antibiotics resistance genes such as β-lactamase (blaZ) and methicilline resistance (mecA). The bacterial virulence factors included pyogenic toxin genes such as staphylococcal enterotoxins A, B, C, D, and E and toxic shock syndrome toxin 1. Diagnosis of IE is challenging due to a variety of non-specific clinical presentations, rapid disease progression, and lack of a confirmative diagnostic technique. This report demonstrated that such molecular diagnostics could be very useful for diagnosing and identifying characteristics of the causative organism for prediction of prognosis and proper treatment. To our knowledge, this is the first report on the isolation of S. pseudintermedius using molecular diagnostics from a clinical case of canine IE.
        4,000원
        6.
        2014.04 KCI 등재 구독 인증기관 무료, 개인회원 유료
        초위성체 표지인자는 가축에서 유전자 다양성, 개체식별 연구를 위한 유전자 마커로 활용되고 있지만 가축의 가금류에서는 이러한 연구가 미비한 실정이다. 이러한 문제를 해결하기 위해 닭에서의 초위성체 마커에 대한 유전정보를 확보하고 보다 정확하고 신속한 유전자 분석 방법의 개발이 필요하다. 본 연구의 목적은 12개의 초위성체 표지인자(MS Marker)를 1세트로 구성된 다중중합효소연쇄반응(Multiplex PCR)을 이용하여 닭의 대립유전자와 대립유전자 빈도 및 이형접합도을 결정하는 마커를 개발하는 것이다. 닭 96수를 이용하여 12개 MS marker를 분석한 결과, MS marker에 대한 대립유전자수는 평균 3.08개로 관찰되었다. 12개 초위성체 마커의 이형접합도은 평균 0.563이고 다형정보도(Polymrphism information content : PIC)는 0.482로 계산되었다. 이 결과는 전국적으로 닭의 유전자를 이용한 개체식별 및 친자감별에 이용하기 위한 기초자료 뿐만 아니라 닭 이력제를 정착시킬 수 있는 중요한 기술로 활용 될 수 있을 것이라 사료된다.
        4,000원
        7.
        2013.12 구독 인증기관 무료, 개인회원 유료
        The swine is one of the most widespread mammalian throughout the whole world. Presently, many studies concer-ning microsatellites in swine, especially domestic pigs, have been carried out in order to investigate general diversity patterns among either populations or breeds. Until now, a lot of time and effort spend into a single PCR method. But simple and more rapid multiplex PCR methods have been developed. The purpose of this study is to develop a robust set of microsatellites markers (MS marker) for traceability and individual identification. Using multiplex-PCR method with 23 MS marker divided 2 set, various alleles occurring to 5 swine breed (Berkshire, Landrace, Yorkshire, Duroc and Korea native pig) used markers to determine allele frequency and heterozygosity. MS marker found 4 alle-les at SW403, S0227, SWR414, SW1041 and SW1377. The most were found 10 alleles at SW1920. Heterozygosity represented the lowest value of 0.102 at SWR414 and highest value of 0.861 at SW1920. So, it was recognized appro-priate allele frequency for individual identification in swine. Using multiplex-PCR method, MS markers used to determine individual identification biomarker and breed-specific marker for faster, more accurate and lower analysis cost. Based on this result, a scientific basis was established to the existing pedigree data by applying genetics additio-nally. Swine traceability is expected to be very useful system and be conducted nationwide in future.
        4,000원
        8.
        2013.12 구독 인증기관 무료, 개인회원 유료
        This experiment was conducted to investigate the genetic effects of candidate genes on the growth of spleen and liver tissues using dietary Curcuma longa (C. longa) supplementation. Expression analyses of candidate genes regarding animal growth was performed in order to determine the factors affecting the growth related to immune components of Curucumin, Turmerone, and Zingiberene as the bile secretion Paratolyl methyl carbinol (PTMC). The animals were divided into four groups of five chicks supplied with experimental diets of C. longa at 0.25, 0.5 and 1% and controls. The 19 growth-related genes were known to cell maturation, differentiation significant expression patterns in this analysis. Expression of growth response-related genes in chicks supplemented with 1% of C. longa showed better growth performance than chicks with 0.25 and 0.5% in spleen (p<0.05). The IGF1, MSTN, POU1F1, ADCYAP1 gene were known to central roles in mediating gonadotropin function, regulating steroidogenesis and promoting oocyte growth and maturation. Sex steroids, androgen and estrogen can affect sex differentiation and also can affect muscle development. On the other hand, GHSR and FABP3 gene showed significant expression patterns in this analysis. The results would be used as basic information for the variation of growth-related genes expression on the cell growth, sex cell growth, and sex hormones according to dietary supplementation with C. longa in chickens.
        4,000원
        9.
        2013.02 KCI 등재 구독 인증기관 무료, 개인회원 유료
        돼지의 육질과 관련하여 지방침착의 중요도가 높아짐에 따라 지방대사 또는 지방축적과 관련한 후보유전자 발굴 을 위해 등지방 조직 유래의 cDNA microarray를 이용하여 품종별 지방함량관련 조직의 유전자 발현 양상을 분석하 였다. 그 결과 재래돼지의 등지방 조직에서 SCD (stearoyl-CoA desaturase)와 ELOVL6 (elongation of very long chain fatty acid 6)가 높은 발현을 보였고, 간에서 FMO1 (hepatic flavin-containing mono oxygenase)이 높은 발현을 보였으며, 요크셔는 간에서 FGG (fibrinogen gamma polypeptide)와 C3d (com- plement component c3d), 등지방에서 COL3A1 (type Ⅲ collagen alpha 1)이 높은 발현을 보이는 것을 확인하였다. Real-time PCR을 통해 microarray data의 validation과 품종간 유전자 발현량을 비교하여, 위의 유전자들 중 지방함량에 따른 차등발현 유전자로 SCD, ELOVL6 그리고 FGG를 선정하였다. 선정된 유전자 SCD, ELOVL6, FGG는 지방대사에 관여하며 근내지방 함량에도 영향을 미쳐 향후 육질개선에 유용한 후보유전자로 서 활용가능성을 제시하였다.
        4,300원
        10.
        2012.12 구독 인증기관 무료, 개인회원 유료
        This study was conducted to find a useful marker for gene polymorphism analysis using Microsatellite marker (MS marker) in Gyeongju Donggyeong dog. Twenty three MS marker analyzed the genetic features of DNA using 100 Gyeongju Donggyeong dogs in Gyeongju area. It was performed multiplex PCR with 3 set primer divided 9, 10 and 4 by analysis of conditions among MS markers. The results were calculated heterozygosity, polymorphic information content (PIC), allele frequency and number of allele at each locus using Microsatellite Toolkit software and Cervus 3.0 program. Total 148 alleles were genotyped to determine and average 6.43 alleles was detected. FH3381 had the highest of 15 alleles and FH2834 had the lowest of 2 alleles. Expected heterozygosity had a wide range from 0.282 to 0.876 and had average value of 0.6496. Also, Observed heterozygosity had a more wide range from 0.200 to 0.950 and had average value of 0.6404. PIC had range from 0.262 to 0.859 and average PIC was calculated 0.606. Especially, FH2998 represented the highest rate of observed heterozygosity of 0.950 and FH3381 represented the highest rate of expected heterozygosity of 0.876 and PIC of 0.859. The use of these markers was considered to be useful to study genetic traits of Gyeongju Donggyeong dog.
        4,000원
        11.
        2018.09 KCI 등재 서비스 종료(열람 제한)
        본 연구에서는 천연 화장품 소재 개발을 위하여 접시꽃 캘러스 생리활성 효능에 대해서 평가하였다. 접시 꽃캘러스 추출물의 항산화 효능은 DPPH, ABTS, FRAP assay를 통해서 확인하였다. 그 결과 접시꽃캘러스 추출물은 농도 의존적으로 강력한 항산화 능력을 확인되었다. 더불어, 접시꽃 캘러스 추출물은 10 mg/mL 의 농도에서 세포 내 ROS를 효과적으로 감소시키는 것으로 확인되었다. 접시꽃 캘러스 추출물의 미백효능을 평가 하기 위해 tyrosinase 저해 효과를 확인한 결과, 접시꽃 캘러스 추출물은 10 mg/mL 의 농도에서 tyrosinase 활성을 51% 감소시키는 것으로 확인되었다. 이상의 결과를 바탕으로, 접시꽃 캘러스 추출물은 항산화 및 미백 효능을 지닌 화장품 기능성 소재로서 적용 가치가 높은 천연소재로 사료된다.
        12.
        2014.03 KCI 등재 서비스 종료(열람 제한)
        철피석곡은 중국에서 전통의약식물로 잘 알려진 난과 식물 중 하나이다. 본 연구에서는 생물반응장치를이용하여 조직 배양된 철피석곡에 대하여 화장품 성분으로써 응용 가치를 평가하였다. 이미 몇몇 보고된 논문에서 철피석곡은 항암, 상처 치유 그리고 면역기능증진 등의 약리학적 활성에 대한 연구가 진행되었다. 본 연구에서는 생물반응장치를 이용하여 조직 배양된 철피석곡의 원괴체상구체 및 다신초에 대하여 화장품 성분으로서효능, 효과를 자연에서 자란 철피석곡과 비교 평가하였다. 항산화 활성 비교 실험 결과 철피석곡의 원괴체상구체는 조직배양된 다신초 및 철피석곡 지하부 및 지상부보다 항산화 효과가 우수하였다. 조직배양된 원괴체상구체의 총 페놀 및 총 플라보노이드 성분 또한 다른 다신초나 자연에서 자란 철피석곡 추출물보다 함유량이 높음을알 수 있었다. 다른 한편으로는 피부 미백과 관련한 효과를 비교 조사한 결과, 조직 배양된 다신초가 자연에서자란 철피석곡 지상부, 지하부 및 조직 배양된 원괴체상구체보다 타이로 시네이즈 활성 억제 및 멜라닌 생성억제 효과가 우수하였다. 이러한 결과들은 피부개선을 위한 화장품 성분으로서 조직배양체의 부분별 응용 가능성을 제공할 수 있을 것으로 사료된다.
        13.
        2010.06 KCI 등재 서비스 종료(열람 제한)
        일반적으로 보석란으로 알려진 금선련은 대만에서 폐나 간의 질병 및 발열이나 두통 치료를 위한 전통식물약제로 사용되어 왔다. 본 연구에서는 생물반응장치를 이용하여 조직배양된 금선련 식물체에 대하여 화장품 성분으로써 응용 가치를 평가하였다. 이미 몇몇 보고 된 논문에서 금선련은 항암활성, 면역 활성, 간 보호 활성 및 지질대사의 약리학적 활성 등에 대한 연구가 되고 있지만 화장품 성분으로 효능들에 대한 연구는 알려져 있지 않다. 따라서 본 연구에서는 생물반응장치를 이용하여 조직배양된 금선련 추출물에 대하여 미백 및 항비만 관련한 효능 효과를 평가하였다. 실험 결과 조직배양된 금선련 추출물은 tyrosinase 활성 및 멜라닌 합성 억제 효과뿐만 아니라 지방 전구 세포의 지방세포로의 분화를 억제시킴으로써 세포 내 지질 축적을 억제하였다. 이러한 결과들은 피부보호를 위한 화장품 성분으로서 응용 가능성을 제공 할 수 있을 것으로 사료된다.