• 한국약용작물학회지
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• 제28권1호
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• pp.38-46
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• 2020

Background: Although Sancho (Zanthoxylum schinifolium Siebold & Zucc) oil has traditionally been used for its antibiotics properties, there is currently a lack of scientific evidence regarding its biological activities. In this study, we investigated the antimicrobial and antioxidant activities of Sancho oil against food-hazardous microorganisms, phytopathogens, and dermatophytes. Methods and Results: We investiated the antimicrobial activity of Sancho oil against 11 food-hazardous microorganisms, nine phytopathogens, and six dermatophytes. The Sancho oil was found to show the strongest antibacterial activity against Shigella flexneri and Listeria spp. Sancho oil also showed high antifungal activity against plant pathogens, particularly Fusarium oxysporum, and showed antimicrobial activity against dermatophytes such as Trichophyton rubrum, Microsporum canis and Candida albicans. The antioxidant activity of Sancho oil was measured using the DPPH method, and was found to be stronger than that of unrefined oil. Moreover, this activity increased with increasing oil concentration. Conclusions: We found that Sancho oil showed differing antimicrobial activities against food-hazardous microorganisms, dermatophytes, and plant pathogens. The antimicrobial activity spectrum of Sancho oil was not broad and varied among microbial strains. On the basis of our findings, we consider that Sancho oil could be used an antibacterial material for food-borne S. flexneri and Listeria spp., a biopesticide for Fusarium spp., and a treatment for dermatophytes such as T. rubrum.

• 한국동물위생학회지
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• 제31권3호
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• pp.315-329
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• 2008

A total of 710 bovine serum samples which are composed 532 bovine serum samples showed negative reaction and 178 bovine serum samples showed positive reaction with tube agglutination test (TAT) from North area of Gyeong-nam, Korea were tested using all the 3 assays which are Rose-Bengal test(RBT), tube agglutination test (TAT) and enzyme-linked immunosorbent assay (ELISA, two types) and analyzed for evaluation of specificity, sensitivity, reproducibility and predictive value. In the comparison of serum antibody titer agglutination test, RBT showed almost agreement with TAT. In the comparison of TAT and two types of ELISA method, they showed difference in specificity and sensitivity about 5%. But there is no significant difference in detecting sensitivity between two types of ELISA method and TAT. In serologic tests for bovine brucellosis, the new assay ELISA would be a good candidate for serologic survey for bovine brucellosis in Korea because it is efficient in detecting many test samples quickly. But the serum agglutination tests (RBT, TAT) are more economical and easy assay for detection. In the test of comparison of antibody titer between first day of finding and 10 days after finding by TAT, there was no change in 55% (76/139) of positive cattle.

• 한국식품영양학회지
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• 제30권4호
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• pp.796-803
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• 2017

This study investigated the crude protein and amino acid contents of local agricultural products widely and specifically grown in Korea, including 25 vegetables and 13 fruits. The crude protein content of vegetables and fruits ranged from 0.46 to 6.53% and 0.29 to 2.23%, respectively. Totally, 17 types of amino acids were found in most samples. The total amino acid content of vegetables and fruits ranged from 457.38 to 9,303.18 mg% and 368.82 to 3,118.75 mg%, respectively. The total amino acid contents of garlic and passion fruit was higher compared to other vagetables and fruits. The calibration curves of the standard components showed good linearity ($r^2$>0.99), except Met ($r^2=0.989$). The limits of LOD and LOQ were in the range 0.034 to $0.991{\mu}g/mL$ and 0.009 to $0.474{\mu}g/mL$, respectively. The results of the study can serve as a fundamental source of information regarding crude protein and amino acids contents in food, for diet planning.

• 생물환경조절학회지
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• 제25권2호
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• pp.100-105
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• 2016

양파 정식기 작업에 적합한 상토 개발을 위해 원예용 유기질 주재료(피트모스, 코이어)의 적합성을 조사했다. 유기질 재료를 무기질 재료(황토 등)와 혼합하여, 묘 출현율, 생육 및 기계정식 적응 특성 등을 조사하였다. 조사 결과 피트모스 혼합 처리구, 코이어 혼합 처리구 모두 묘 출현율, 생육 및 상토 용적밀도에서 유사했으나, 피트모스 혼합 처리구가 코이어 혼합 처리구에 비해 더 높은 상토 응집성을 보였다. 피트모스 혼합 상토의 높은 응집성은 양파 묘 정식 시 뿌리부 무게 증가 등의 효과를 가져와서 정식기 작업 효율성을 증진시키는데 도움을 줄 수 있을 것이라고 생각된다. 이러한 이유로, 양파 정식기 작업에 적합한 상토 개발 시 피트모스를 유기질 주재료로 선정하는 것이 적합하다고 최종 판단하였다.

• 한국농림기상학회:학술대회논문집
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• 한국농림기상학회 2013년도 추계 학술발표논문집
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• pp.37-41
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• 2013

• 한국토양비료학회지
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• 제46권5호
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• pp.327-332
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• 2013

This survey was conducted to obtain basic data about organic matter such as BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), DOC (Dissolved Organic Carbon) and TOC (Total Organic Carbon) in agricultural water in Gyeongnam province. BOD and COD are currently used for water quality indices, but adoption of TOC is being suggested. The surface water samples were collected at 39 locations in Gyeongnam province in April, July and October. Average concentrations of BOD, COD, DOC and TOC were 1.6, 3.3, 5.3 and $5.7mg\;L^{-1}$, respectively. In July, average concentrations of BOD and COD were 2.4 and $3.9mg\;L^{-1}$, respectively, showing these values were higher than other months. Average concentrations of TOC in April, July and October were 4.8, 7.4 and $4.8mg\;L^{-1}$, respectively. This suggested that the highest value of TOC was in July. Average decomposition efficiencies for BOD-C/TOC and COD-C/TOC were 11.4 and 23.9%, respectively. Correlation coefficient of TOC and DOC was higher by 0.995, whereas that of TOC and COD was lower by 0.763. Especially, TOC and DOC were highly related than others.

• 한국지구과학회지
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• 제30권4호
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• pp.478-484
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• 2009

본 연구에서는 자동기상관측시스템(AWS)을 이용하여 기상요소의 관측 자료를 수집하고 실시간으로 그 자료를 제공하는 웹 페이지를 개발하였다. 이 시스템은 실시간으로 자료를 제공하면서 동시에 데이터베이스(DB)로 누적하여, 사용자의 요청에 따라 과거의 기상 자료를 파일로 제공하는 기능도 있다. 완성된 페이지를 이용하여 학교 현장에서 지구과학 교과의 기상분야 탐구학습에 성공적으로 활용하였다. 이 연구 결과, 기상 관측 자료를 실시간으로 제공함으로써 기상 분야 탐구학습의 현장감을 높일 수 있게 되었다. 또 누적된 과거 기상 자료를 이용함으로써 시간규모가 너무 길어서 실질적인 탐구학습이 어렵던 지구과학 교과의 제약을 일부 극복하게 되었다.

• 한국환경복원기술학회지
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• 제14권5호
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• pp.103-112
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• 2011

Old big tree transcends the simple meaning of trees as they are the natural monuments that embody the people's history and culture of this land. The Cultural Heritage Administration of Korea(CHA) defines and protects old big tree based not only on the size of the tree but also on its definitive cultural and natural factors such as value, implications, and originality. This research aims to identify and analyze the growth conditions, soil conditions and location character of 20 old big tree in Gyeongsangnamdo korea. The research examined the soundness of the arboreal form, the degree of damage on the bark, as well as the quantity of leafs levels to evaluate the overall condition of growth and development. Also, 9 elements such as soil texture, nitrogen and organic matter content, soil pH, phosphoric acid and EC were further analyzed The research analyzed in correlation of Growth condition and soil. Tree health related positivity that total nitrogen and organic matter. The result which analyzes location character, With natural monument old big trees raising a hand the area where is contiguous appeared with the fact that the farming village style where the rice field and the arable land of field etc. This research aimed at generating some foundational reference data for the analysis of the habitation and management conditions of natural monument old big tree within the Gyeongsangnamdo korea.

• Weed & Turfgrass Science
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• 제3권4호
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• pp.323-328
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• 2014

본 연구는 벼 재배에서 병해충방제의 목적으로 확대 보급되고 있는 농업용 무인헬기를 담수표면산파의 잡초방제에 활용 가능성을 검정하고자 수행하였다. 경엽처리 제초제(bentazone sodium + fenoxaprop-P-ethyl)의 처리농도는 벼 병해충방제에 적용하는 8배로 희석하여 처리한 결과 기준량 및 2배량 살포에서는 피해가 크지 않았으나, 3배량 이상 살포시 벼 생존율이 급격히 감소하였다. 벼 담수표면산파 포장에 발생한 주요 잡초는 피(Echinochloa crus-galli)를 포함한 일년생 6초종과 너도방동사니 등 다년생 2초종이었으며, 파종 후 25일에 무인헬기로 경엽처리 제초제 살포시 일년생 잡초에서 96.3%, 다년생 잡초 99.8%로 동력분무기를 이용한 관행방제와 유사한 방제가를 보였고, 약해 증상도 나타나지 않았다. 제초제 살포시기 설정을 위하여 파종 후 15일, 20일, 25일에 무인헬기로 살포한 결과 파종 후 15일에 방제가가 일년생 잡초 98.5%, 다년생 잡초 100%로 관행방제(1년생 97.3%, 다년생 99.6%)보다 높았고, 약해 증상도 나타나지 않았다. 따라서 농업용 무인헬기를 경엽처리 제초제 살포에 이용 가능할 것으로 판단된다.

• Weed & Turfgrass Science
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• 제4권3호
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• pp.199-208
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• 2015

본 연구는 경남지역의 밭에서 발생하는 잡초의 분포현황을 조사하기 위하여 수행하였다. 보리 재배지에서는 21과 55종, 마늘 재배지 22과 56종, 양파 재배지 19과 47종, 배추 재배지 26과 68종, 감자 재배지 22과 54종, 고구마 재배지 25과 62종, 고추 재배지 29과 87종, 옥수수 재배지 28과 79종, 콩 재배지 29과 84종이 발생되었다. 작목별 우점하는 초종은 보리 재배지 뚝새풀 20.7%, 마늘 재배지 황새냉이 12.3%, 양파 재배지 좀명아주 18.7%, 배추 재배지 쇠비름 8.1%, 감자 재배지 좀명아주 13%, 고구마 재배지 바랭이 12.6%, 고추 재배지 바랭이 12.6%, 옥수수 재배지 11.3%, 콩 재배지 바랭이 13.2%로 발생되었다. 동작물 재배지에서는 뚝새풀, 황새냉이 및 좀명아주가, 하작물 재배지에서는 바랭이, 쇠비름, 깨풀이 가장 문제시 되었다. 이러한 잡초 발생 정보는 경남지역 밭잡초 관리방안 수립에 기여할 것으로 판단된다.