• Journal of Applied Biological Chemistry
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• 제65권4호
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• pp.253-259
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• 2022

본 연구의 목적은 서로 다른 지역에서 재배된 4년근 산양삼의 생육특성과 진세노사이드 함량 간의 상관관계를 조사하는 것이다. 유효 인산을 제외한 대부분의 토양 특성은 다른 재배지에서 보다 평창에서 유의적으로 높았다. 뿌리 길이와 세근수를 제외한 생육특성은 다른 재배지보다 평창 재배지에서 유의적으로 높게 나타났다. 8종의 진세노사이드 함량의 경우, 무주 재배지의 F2-AS 함량은 다른 재배지보다 높았으며, 영주 재배지의 F1 함량은 유의적으로 높게 나타났다. 영월 재배지에서는 Rb1과 Re-p의 함량이 유의적으로 높았고, 평창 재배지에서 Ro의 함량은 다른 재배지보다 유의적으로 높게 나타났다. 뿌리 길이와 토양 pH는 각각 토양특성 및 산양삼의 생육특성과 유의적인 상관관계를 보이지 않았다. 대부분의 생육특성은 전기전도도 및 유기물 함량, 전질소 함량, 치환성양이온(K⁺, Ca²⁺, Mg²⁺), 양이온치환용량과 유의적인 정의 상관관계를 보였다. Rb1과 Re-p는 세근수를 제외한 대부분의 산양삼 생육특성과 유의적인 부의 상관관계를 보였다. Ro는 줄기 길이, 줄기당 소엽수, 소엽 길이, 소엽 넓이, 뿌리 두께와 유의적인 정의 상관관계를 보였다. 본 연구의 이러한 결과는 4년근 산양삼의 생육특성과 진세노사이드 함량 간의 상관관계를 조사함으로써 품질 기준을 수립하기 위해 유용한 정보를 제공하는 데 도움이 될 수 있을 것이다.

• 한국환경과학회지
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• 제14권9호
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• pp.811-815
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• 2005

The activated sludge from the aeration basin of the Su-yeong municipal wastewater treatment plant which has operated by a standard activated sludge process in Busan, Korea was investigated during April 2004 and January 2005 with several bio-indicators. The number of bacteria and fungi per gram of dry weight of MLSS were estimated to be $3.1\times10^6\sim1.5\times10^8\;and\;l.1\times10^3\sim1.1\times10^5$ colony forming units, respectively, by the plate agar method. By cultivation-independent methods, such as 4',6-diamidino-2-phenylindole stain and fluorescence in situ hybridization, the ratio of eubacteria to the entire biomass was evaluated by more than $80\%$ (v/v). The ratio of ammonia-oxidizing bacteria and nitrite-oxidizing bacteria to the total eubacteria was detennined to be $7.0\sim9.8\%\;and\;3.3\sim6.2\%$ without heavy variation in spite of a period of relatively low temperature in the basin. It would be expected that the nitrification would occur or at least co-exist throughout the year in the sludge of many municipal WWTP with influents that contain the sufficient nitrogen sources although the WWTP does not have any specialized processes for the removal of nitrogen.

• 한국농공학회:학술대회논문집
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• 한국농공학회 2003년도 학술발표논문집
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• pp.347-350
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• 2003

Pleurotus eryngii is one of the most promising mushrooms produced on the domestic farms. The quality as well as quantity of Eryngii is sensitively affected by micro climate factors such as temperature, relative humidity, $CO_2$ concentration, and light intensity. At the commercial mushroom cultivation houses, this study was carried out to find out reasonable range of each environmental factor and yield together with economic and safe structures influencing on the optimal productivity of Eryngii. This experiment was conducted from Jan. 26, 2003 to Aug. 2, 2003. Ambient temperature during the experiment period was not predominantly different from that of a normal year. The capacity of the hot water boiler and the piping systems were not enough. Maximum temperature difference between the upper and lower growth stage during a heating time zone was about $6^{\circ}C$. The max. and min. relative humidity were ranged approximately $42{\sim}100%$. The $CO_2$ concentration and the illuminance were lowly maintained during growing period. The average yield per bottle was about $54{\sim}102g$.

• 한국콘텐츠학회논문지
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• 제18권2호
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• pp.583-591
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• 2018

텔레비전 드라마 시청이 수용자의 비현실적이고 낭만적인 결혼관에 미치는 영향을 살펴보기 위해 본 연구는 로맨스 드라마 시청에 따라 수용자의 결혼에서 경제문제 중요성 인식, 일상 만족도, 이성 만족도, 첫눈에 반하는 태도, 결혼에 대한 환상이 어떻게 달라지는가를 살펴보았다. 설문조사 분석 결과, 로맨스 드라마를 많이 보는 경우 적게 보는 경우에 비해, 결혼에서 경제적인 문제를 덜 중요하게 생각하고 일상 만족도는 높으며 첫눈에 반하는 태도를 중요시하고 결혼에 대한 환상이 높은 것으로 나타났다. 그런데 드라마 시청 시 현실감 인식의 차이는 로맨스 드라마 시청의 이러한 결혼관 계발에 영향을 미치지 않았다. 한편, 중국 드라마를 많이 보는 경우 결혼에서 경제적인 문제를 덜 중요하게 생각하고 이성 관계에 만족도가 더 큰 경향이 있었는데 한국 드라마 시청에 따라서는 차이가 없었다. 반면, 한국 드라마를 많이 보는 경우 일상생활 만족도가 더 높았고 오히려 중국 드라마 시청에 따라서는 차이가 없었다.

• 한국미생물·생명공학회지
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• 제22권1호
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• pp.85-91
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• 1994

The characteristcs of monascus fermentation using a hyperpigment-producing mutant, Monascus sp. J101, were analyzed, and the extractive fermentations employing permeabilizing agents and resin were carried out to increase the productivity of red pigment. And the kinetic analysis was also carried out in case of the monascus fermentation using Amberlite XAD-7. The extracellular content of the red pigment produced by Monascus sp. J101 was about 17% of the total, and the production of pigment was regulated by its own product. The cell growth reached a stationary phase at 48 hours ofter inoculation, whereas the pigment production continued up to 100 hours, which showed the pattern of a mixed growth-associated type. During the fermentation, various permeabilizing agents were added to the culture medium and their effects on pigment production were examined. By adding 0.05% Triton X-100 at 48 hours of cultivation, about an 18% increase in pigment production was accomplished as compared to the control, 12% ethyle acetate and 15% for 0.05% deoxycholate, respectively. When a nonionic adsorbent, Amberlite XAD-7 was added to the culture medium at a concentration of 12.0% at 48 hours of cultivation, the pigment production was enhanced by about 48.9% as compared to the control.

• 미생물학회지
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• 제43권4호
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• pp.321-324
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• 2007

Streptomyces 균주들의 진탕배양 시간에 따른 항원성 변화를 면역확산 침강법과 간접 ELISA법으로 측정하였다. 각 균주들에서 모두 색소 생산 시기에 나타난 새로운 침강선이 배양시간이 경과되면서 진해지는 양상을 보였다. S. coelicolor와 S. griseus의 항원성 변화는 상대적으로 약하게 나타난 반면 S. lavendulae와 S. viridochromogenes의 항원성 변화는 강하게 나타났다. 이 결과는 균주에 따라 정도의 차이는 있지만 Streptomyces 균체의 진탕배양에서의 생장이 균체의 외피 성분의 변화를 수반하며 이를 정량적으로 분식할 수 있음을 나타낸다.

• 한국유기농업학회지
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• 제25권4호
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• pp.749-758
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• 2017

This Research was the standardization of nutrient sources by reviewing the possibility of cultivation and analysis of imported nutrient sources used in Pleurotus ostreatus culture. As a first result, the concentration of heavy metals was not detected or trace, and the total nitrogen content of cotton seed pomace was 6.22% in Australia, which was higher than that of Chinese or USA. As a second result of physical properties of nutrient sources, the water holding capacity of beet pulp from Egypt was higher with increasing pressure. The volume water content of US was highest at 400hpa and 500hpa in case of cottonseed meal. Third, the content of total nitrogen was the highest at pH 5.51 and the total nitrogen content was the highest at 2.45, and the C/N ratio was the highest at 28.18. Last result shows that first germination day, yield and biological effciency of all treatments were not significant differnet except T2. These results shows that australian cootton was inappropriate to Pleurotus ostreatus culture. Nevertheless, the safety and standardization of the Pleurotus ostreatus culture medium should be assured by reviewing the media low material importing season, mushroom yield and nutrient sources.

• 농촌지도와개발
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• 제24권2호
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• pp.99-115
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• 2017

The purpose of this study is to analyze potential adoption rates and reusing patterns of the new rice direct seeding technology. The model constructed and employed in this study is a system dynamics model of farmer adoption and reusing patterns for this new technology over time. The model incorporates a causal loop diagram that explains interactions among rice cultivation subsystems with feedback loops and further attempts to build a causal loop model with stock-flow diagram for computer simulation. As one example of how the model can be used to provide insight to rice farmers, simulations are run over varying levels on the cultivation process of rice. The major finding is to demonstrate the utility of system dynamics simulation methodology in aiding the rice wet direct seeding farmers' decision making.

• The Journal of Asian Finance, Economics and Business
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• 제7권5호
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• pp.103-110
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• 2020

This study analyzes the strategy of determining economic development planning on SME improvement in Indonesia. A qualitative approach was conducted through interview questionnaires with twenty respondents, including sixteen Regional Apparatus Work Unit, Fisheries and Marine Office lecturers, subdistrict heads, and development observers. The method used is Analytical Hierarchy Process (AHP). AHP prioritizes criteria and sub-criteria to increase economic growth, reduce poverty, and increase community participation, while indicating the sub-criteria to optimize resource potential, strengthen micro-economy, develop tourism potential, utilize fishery potential and cultivation, and improve institutional performance. The AHP weighting results based on competitiveness and regional development of Bantaeng Regency is the priority in policy-making for a solution. The research shows that the government strategy, based on the perception of the stakeholders, is: optimizing resources strategy with priority to maximize the resource-carrying capacity that includes agriculture and farm, tourism development potential strategy, self-reliance of community groups and coaching and management. Strategies to strengthen micro economy include: industrial control, SMEs, community cooperatives and infrastructure improvements, strategies to improve institutional performance work capacity and work ethic, and strategies to utilize fisheries and cultivation potential technological development, provision of processed industries of fishery products, and improvement of the quality of the environment.

• Journal of Microbiology and Biotechnology
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• 제14권1호
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• pp.216-219
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• 2004

The effect of culture temperature on the production of soluble form of B. macerans cyclodextrin glucanotransferase (CGTase) in recombinant E. coli was investigated. E. coli cell was cotransformed with two plasmids (pTCGT1 and pGroll) in which the cgt and groEL/ES genes are under the control of T7 promoter and pzt-1 promoter, respectively. When tetracycline (10 ng/ml) and IPTG (l mM) were added as inducers at the early-exponential phase (2 h) and mid-exponential phase (3h), respectively, the solubilization of the inclusion body CGTase was greatly dependent on the temperature of the culture. At low culture temperature of $25^\circ{C}$, 2- or 3-fold higher activity and specific activity were obtained over $37^\circ{C}$. SDS-PAGE analysis revealed that about 62% of CGTase in the total CGTase protein was found in the soluble fraction by applying overexpression of GroEL/ES chaperone and by cultivation of E. coli at $25^\circ{C}$, whereas 33% of CGTase was detected in the soluble fraction at $37^\circ{C}$. Therefore, the expression of GroEL/ES and cultivation at $25^\circ{C}$ greatly enhanced the soluble production of CGTase in E. coli.