• 한국버섯학회지
• /
• 제17권4호
• /
• pp.230-234
• /
• 2019

버섯 균사체 배양물을 이용한 식초개발 결과는 다음과 같다. 버섯 균사체 배양물의 베타글루칸 함량 분석결과 현미에서는 29.2 mg/g이었으나 버섯 균사체 배양물에서 함량이 증가하여 상황 78.7 mg/g, 동충하초 46.6 mg/g, 노랑느타리 19.9 mg/g 순으로 나타났다. 또한 동충하초 배양물은 조지방과 베타글루칸 함량이 상대적으로 높고, 코디세핀도 0.34 mg/g 함유되어 있었다. 버섯 균사체 배양물 첨가에 따른 알코올 발효특성은 건조시료 중에서는 현미, 동충하초가 생시료 중에서는 노랑느타리의 알코올 생성능이 높았으며, 초산발효 시 산도는 건조시료에서는 노랑느타리가, 생시료에서는 현미의 산도가 높았다. 버섯 균사체 배양식초의 이화학적 특성 분석결과 건조시료 중 노랑느타리와 동충하초 식초가 산도가 높고 환원당 함량이 높은 것으로 나타났으며 기호도 평가 결과 노랑느타리와 동충하초 균사체 식초가 현미식초에 비해 기호도가 높았고 이취는 낮은 것으로 나타났다. 버섯 균사체 식초의 기능성분 분석결과 동충하초 식초는 폴리페놀이 우수하였고 또한, 코디세핀이 786 mg/L 함유되어 있으며, 노랑느타리 식초는 베타글루칸 함량이 20.9 mg/g으로 높은 것으로 나타났다. 본 연구에서 버섯 균사체를 활용한 발효식초 제조에 적합한 균으로는 동충하초와 노랑느타리가 적합한 것으로 나타났으며, 향후 적정 초산 발효기간, 보존 방법 등의 추가 연구가 필요할 것으로 판단된다.

• 한국환경복원기술학회지
• /
• 제16권1호
• /
• pp.147-157
• /
• 2013

Rice is a main crop and rice field is the most important farmland in Korea. This study was conducted to propose the methodology assessing impact and vulnerability on rice production by climate change at the regional and national level in Korea. We evaluated a vulnerability of rice paddy according to the outbreak of a main disease and pest of a rice plant. As results, Jeju-do, Gyeongsangnam-do, and Jeollanam-do were more vulnerable area than others. In contrast, the southern central region including Gyeonggi-do was less vulnerable than others. The vulnerable index was significantly higher in 2050s (0.5589) than in present (0.3500). This result showed that the vulnerable to the disease and pest enlarge in the future. The adaptive capacity highly contributed to the vulnerability assessment index. The daily maximum temperature of June and the daily average temperature from May to August also contributed the climate exposure index. The area of occurring sheath blight, rice leaf blast and striped rice borer was related to the system sensitivity index. The ability of water supply (readjustment area of arable land per paddy field area) and rice production technique (rice yield per hectare) were the highly contributed variables to the adaption capacity index.

• 한국토양비료학회지
• /
• 제39권6호
• /
• pp.372-379
• /
• 2006

토양염류가 집적된 시설재배지에서 팽화왕겨의 시용량과 점적관개에 의한 염류경감 효과를 검토코자, 팽화왕겨를 0, 2.5, 5.0, $7.5Mg\;ha^{-1}$ 각각 시용한 후 토양수분포텐셜이 -33 kPa 일때 관개한 처리와 $5.0Mg\;ha^{-1}$ 시용후 -20 kPa시 관개한 처리 등 5처리를 두어 관개 종료시점을 -10 kPa로 하여, 시험전 토양 EC가 $5.10dS\;m^{-1}$ 인 사양토에서 적축면상추를 시험작물로 포장시험을 수행하였다. 정식 후 100일에서 팽화왕겨 $5.0Mg\;ha^{-1}$ 시용구의 토양 EC는 무처리구에 비해 토양수분포텐셜 -20 kPa 시 관개구에서는 26%, -33 kPa 시 관개구에서는 24% 각각 감소하였다. 정식 후 100일에서의 토양 EC와 $NO_3{^-}-N$, $Cl^-$, $SO{_4}^{2-}$ 등의 음이온 간에는 고도의 정의 상관이 있었고, EC에 관여하는 정도는 $Cl^-$ > $NO_3{^-}-N$ > $SO{_4}^{2-}$ 순으로 상관이 높았다. 정식 후 100일에서의 아질산산화균의 밀도는 EC가 높았던 무처리구에서 높고, EC가 낮았던 팽화왕겨 $5.0Mg\;ha^{-1}$ 시용구의 -20 kPa 관개구에서는 낮았다. 상추의 엽중 질소함량은 생육초기에만 다소 부족한 경향이었으며, 수량은 팽화왕겨 $5.0Mg\;ha^{-1}$ 시용구의 -33 kPa 시 관개구에서는 6% 증가하였으나, -20 kPa 시 관개구에서는 4% 감소하였다. 관개량은 팽화왕겨의 시용량이 증가함에 따라 감소하였으며, 관개시점을 토양수분포텐셜 -20 kPa 보다는 -33 kPa로 했을때 경제적이었다.

• The Plant Pathology Journal
• /
• 제26권1호
• /
• pp.37-48
• /
• 2010

This paper describes a web-based information system for plant disease forecast that was developed for crop growers in Gyeonggi-do, Korea. The system generates hourly or daily warnings at the spatial resolution of $240\;m{\times}240\;m$ based on weather data. The system consists of four components including weather data acquisition system, job process system, data storage system, and web service system. The spatial resolution of disease forecast is high enough to estimate daily or hourly infection risks of individual farms, so that farmers can use the forecast information practically in determining if and when fungicides are to be sprayed to control diseases. Currently, forecasting models for blast, sheath blight, and grain rot of rice, and scab and rust of pear are available for the system. As for the spatial interpolation of weather data, the interpolated temperature and relative humidity showed high accuracy as compared with the observed data at the same locations. However, the spatial interpolation of rainfall and leaf wetness events needs to be improved. For rice blast forecasting, 44.5% of infection warnings based on the observed weather data were correctly estimated when the disease forecast was made based on the interpolated weather data. The low accuracy in disease forecast based on the interpolated weather data was mainly due to the failure in estimating leaf wetness events.

• 농촌지도와개발
• /
• 제27권2호
• /
• pp.75-87
• /
• 2020

The purpose of this study is to investigate the location characteristics of the rice paddy fields and to predict shrinking areas of them. The study area is in South Korea nationwide, and a 300×300m raster level is adopted as a spatial analysis unit. The binary logit model and spatial simulation model are employed for the analyses. As a result, population, industry, climate and nature, and accessibility play a significant role in determining rice paddy fields' locations. It is predicted that the shrinking rate will be high in Gangwon-do, Gyeongsangbuk-do, and Gyeongsangnam-do until 2027. The hot spots are intensively shaped in the inland of Gangwon-do, eastern parts of Gyeonggi-do, and the borders of Gyeongsangnam-do and Jeollabuk-do between Charyeong and Sobaek mountain ranges. Using Gimcheon-si as an example, the study suggests fundamental policy implications for taking advantage of the simulation results from the lens of local agriculture. Several policy measures are proposed for improving management strategies for the rice paddy fields in the long run.

• Nutritional Sciences
• /
• 제8권1호
• /
• pp.61-70
• /
• 2005

To investigate the dietary behavior and food preference by the obesity index, 524 children (male 265, female 259) from 4 elementary schools in Gyeonggi area participated in this study. The overweight group included more boys (52.5%) than girls (47.5%). The overweight group had significantly higher values in height, weight, Obesity index (OI), Body mass index (BMI), and Rohrer index (RI) than the underweight or normal weight groups. The majority (43.4%) of children showed 11-20 minutes of eating time, and boys ate significantly rapidly than girls (p<0.00l). Snack was consumed 2-3 times a day, with the preference principally for ice-cream and cookies. The frequency of eating out was 1-2 times a month, representing 71.4% of subjects, and 73.3% of children preferred Korean style meals, followed by Western, Chinese and Japanese foods. Twigim (frying) was the preferred cooking method for vegetables, fish and meat. The food preference study showed that Ssalbap, Hyunmibap and Boribap were preferred in the rice group. For one-dish foods in the rice group, Jjajangbap, Kimchibokeumbap, Bokeumbap were preferred, with the tendency that boys preferred significantly more Curry rice (p<0.05) and Chickenbap (p<0.01) than girls. The preference for guk, jjigae, and tang group showed that Soegogimiyeokguk, Chamchikimchijjigae were preferred Boys preferred significantly more Samgyetang (p<0.05), Haemultang (p<0.05) and Yukgaejang (p<0.01) than girls, and girls preferred significantly more Kongbijijjigae (p<0.05) than boys. It is considered that organized and continuous nutritional education beginning in childhood, is necessary to for the development and formation of desirable dietary behaviors.

• 한국작물학회지
• /
• 제54권3호
• /
• pp.241-248
• /
• 2009

본 시험은 최근 육성된 신품종을 포함한 중부지역 적응 주요 벼 재배품종들에 대한 수발아 특성을 검토한 결과로서 수발아 사전예방을 위한 품종선택 및 고품질 쌀 생산 영농자료로 활용코자 수행하였으며 그 결과는 다음과 같다. 1. 수발아 실내검정에서 수발아율은 출수후 일수가 경과 될수록, 처리온도가 높을수록 높은 경향이었다. 2. 수발아 실내검정시 수발아율이 10%이하로 낮은 품종은 처리후 8일 조사에서 출수후 35일 25/$15^{\circ}C$(주/야)조건에서는 오대벼, 히토메보레, 고시히카리, 화성벼, 호평벼, 일품벼, 추청벼 등 7품종, 30/$20^{\circ}C$(주/야) 조건에서는 히토메보레, 고시히카리, 화성벼, 호평벼 등 4품종이었다. 3. 수발아 포장검정에서 출수후 검정시기별 수발아율이 10%이하로 낮은 품종은 출수후 35일(도복 8일후 조사)은 호평벼, 히토메보레 등 12품종, 출수후 45일(도복 8일 후 조사)은 일품벼, 화성벼, 추청벼, 호평벼 등 4품종이었다. 4. 라이시미터 분무처리에 따른 수발아율은 지하수 분무처리에 따른 저온(이삭부위 평균온도 $16{\sim}19^{\circ}C$)으로 포장검정에 비해 시험품종 모두 수발아율이 낮았으며, 분무처리후 37일(출수후 57일)에 10%이하로 낮은 품종은 삼광벼, 호평벼, 추청벼, 일품벼 등 4품종이었다. 5. 최근 육성 벼 신품종의 수발아 특성은 포장검정시(출수후 45일, 도복 8일후 조사) 10%이하는 호평벼, $11{\sim}20%$는 삼광벼, $21{\sim}40%$는 오대1호, 조생흑찰벼, 청호벼, $41{\sim}60%$는 서안1호, 운광벼, 보석찰벼, $61{\sim}90%$는 고품벼이었다.

• 한국식품위생안전성학회지
• /
• 제37권1호
• /
• pp.1-8
• /
• 2022

본 연구는 2021년 2월부터 7월까지 잡곡 106건을 수거하여 잔류농약 실태조사를 하였다. 대형, 중소형 및 온라인 유통매장을 중심으로 국내 잡곡 40건과 수입 잡곡 66건을 수거하였고, GC/MSMS, GC/ECD, GC/NPD, LC/MSMS, UPLC/PDA, HPLC/FLD를 이용하여 다종농약 다성분분석법으로 잔류농약 341종을 분석하였다. 잔류농약이 검출된 잡곡은 대형유통매장 1건, 중소형 유통매장 2건, 온라인 유통매장 5건으로 총 8건(7.5%)이었고, 5건(4.7%)에서는 농약잔류허용기준을 초과하였다. 이들 잡곡에서는 MGK-264, chlorpyrifos, thiamethoxam, malathion, piperonyl butoxide, pirimiphos-methyl 등 6종의 농약 성분이 검출되었다. 검출된 잡곡은 강낭콩(1건), 녹두(6건), 수수(1건)이다. 검출된 잡곡 중 농약잔류허용기준을 초과한 품목은 수입 녹두(5건)로 미얀마산이었고, 초과한 농약 성분은 thiamethoxam이었다.

• 한국환경복원기술학회지
• /
• 제12권1호
• /
• pp.52-66
• /
• 2009

The increase of rice productivity, the decrease of rice demand, aging farmers, and the market-opening of rice along with the domestic and international conditions changes have been led to the increase of the abandoned rice paddy fields. Such abandoned rice paddy fields have been left in many areas and most of them have become wetlands. The purpose of this study is methodology of selection to the wetland for development in the abandoned rice paddy fields along with surroundings. The selection of habitat suitability index assessment study to conservation and restoration was done through hydrology, wild animals habitation, wetland vegetation, outside disturbance, and natural purification capacity assessment. In addition, the same method was applied to assessment items and standards for both the restoration site selection and the type of restoration. Both assessment items and standards were applied to the sites, drawn on the maps, and overlayer for the comprehensive map, and then the wetland suitability index was applied to the suitable site. The development technique was applied to 10 sites near the Banwol Stream watershed in Gunpo, Gyeonggi province. The selection of conservation, restoration, and the optimal sites can lead to not only the biodiveristy increase in agricultural or semi natural areas but also to the establishment of ecological networks in national level.

• 한국작물학회:학술대회논문집
• /
• 한국작물학회 2023년도 춘계학술대회
• /
• pp.41-41
• /
• 2023