• 농약과학회지
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• 제19권3호
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• pp.151-160
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• 2015

2010년부터 2012년까지 서울 가락동 농수산물도매시장에서 경매되는 채소류 중 들깻잎 4,063건 상추 2,248건을 대상으로 잔류농약 검사를 실시하였다. 들깻잎은 812건에서 농약이 검출되었고 40건이 부적합판정을 받았다. 상추의 경우 108건에서 농약이 검출되었고 잔류허용기준을 초과한 상품은 10건이었다. 검출된 농약은 들깻잎 61종, 상추는 28종이었다. 들깻잎 및 상추 섭취에 따른 다종농약 성분에 대한 안전성 평가는 들깻잎이 0.05% 이하, 상추가 0,1% 이하로서 인체에 대한 위해성은 낮은 것으로 평가되었다.

• 한국식품위생안전성학회지
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• 제35권3호
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• pp.243-251
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• 2020

경기 북부 내 직거래 매장에서 유통 되는 농산물 207건을 수거하여 잔류농약의 실태를 조사하였다. 로컬푸드와 소비자생활협동조합(생협) 매장을 대상으로 일반농산물 94건, 친환경농산물 113건의 다소비 채소류를 수거하여 다종농약다성분 분석법으로 GC/ECD, GC/NPD, GC-MS/MS, LC/PDA, LC/FLD, LC-MS/MS를 이용하여 263종의 농약을 분석하였다. 잔류농약이 검출된 검체는 모두 로컬푸드 매장에서 수거한 일반 농산물로 14건의(6.8%) 시료에서 잔류농약이 검출되었고, 그 중 1건에서(0.5%) 잔류농약허용기준을 초과하였다. 총 16개 농약성분이 검출되었고 검출된 작물은 시금치, 얼갈이, 깻잎, 아욱, 오이, 부추, 미나리였다. 농약 검출량을 바탕으로 일일섭취추정량(EDI)과 일일섭취허용량(ADI)을 이용하여 위해성 평가를 하였으며, %ADI 값의 범위는 0.0134-61.6259%로 안전한 수준이었다.

• Asian-Australasian Journal of Animal Sciences
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• 제30권1호
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• pp.94-99
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• 2017

Objective: The aim of this study was to investigate the expression of heat shock protein (HSP) 90, 70, and 60 in chicken muscles and their possible relationship with quality traits of meat. Methods: The breast muscles from one hundred broiler chickens were analyzed for drip loss and other quality parameters, and the levels of heat shock protein (HSP) 90, 70, and 60 were determined by immunoblots. Results: Based on the data, chicken breast muscles were segregated into low (drip loss${\leq}5%$), intermediate (5%${\geq}9.5$) drip loss groups. The expression of HSP90 and HSP60 were significantly lower in the high drip loss group compared to that in the low and intermediate drip loss group (p<0.05), while HSP70 was equivalent in abundance in all groups (p>0.05). Conclusion: Results of this study suggests that higher levels of HSP90 and HSP60 may be advantageous for maintenance of cell function and reduction of water loss, and they could act as potential indicator for better water holding capacity of meat.

• 한국환경과학회지
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• 제21권4호
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• pp.461-470
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• 2012

Agriculture is more influenced by environmental factors rather than other industries. Among the environmental factors, the meteorological conditions mainly impact the output of agricultural products. Hence, the purpose of this study is to analyze the impact of meteorological factors on the output of elemental agricultural products. As a first step, we obtained the data of the meteorological factors (i.e., precipitation, humidity, temperature, insolation, snowdrifts, wind velocity) and the output of the various agricultural products (i.e., grain, fruits and vegetables, root crops, green vegetables, seasoned vegetables, fruits, special crops) from the year 1990 to 2009 (20 years) of Seoul and the six metropolitan cities in Korea. Then, the analysis of the correlation between the agricultural product with the largest output and the meteorological factors of the place where the corresponding agricultural product is most produced, was carried out in order to determine the core meteorological factor that most impacts the output of agricultural product. The correlation analysis revealed that humidity, insolation and wind velocity have been the crucial meteorological factors to influence the output of the agricultural products. From the result, we can induce that the meteorological forecast information about the vital meteorological factors, i.e., humidity, insolation and wind velocity, facilitates the optimized cultivation plan to maximize the output of agricultural products.

• 한국콘텐츠학회논문지
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• 제18권11호
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• pp.416-429
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• 2018

태풍, 홍수는 우리에게 빈번하게 닥치는 자연 재해이며, 이와 같은 자연 재해로부터 오는 피해는 사전에 예측되어 대응책이 마련될 필요가 있다. 자연 재해로부터 야기되는 피해에는 건물의 붕괴, 인명 피해, 논/밭의 유실 등 주로 직접적인 피해가 많지만, 소비자 물가 상승과 같은 간접적인 영향에도 관심을 가져야 한다. 태풍, 홍수의 피해로부터 영향을 받는 대표적인 소비재 상품은 농산물이다. 갑작스럽고 강력한 태풍은 많은 비를 동반하면서 농작물에 피해를 주고, 농산물의 가격을 상승시킨다. 본 연구에서는 딥러닝 알고리즘을 활용하여 태풍과 같은 자연 재해가 농산물 가격에 미치는 영향을 예측한다. 우리는 데이터 확보가 가능한 쌀, 양파, 대파, 애호박, 시금치 등을 가격 예측 대상으로 했고, 농산물 가격에 영향을 미치는 변수 데이터들로 학습 모델을 만들고, 그 학습 모델이 농산물 가격을 예측하는 연구를 진행하였다. 연구 결과, 모델에 의한 예측 가격과 실제 가격의 차이를 나타내는 RMSE가 0.069 수준이며, 농산물 가격을 비교적 잘 설명하는 것으로 해석된다. 정확한 농산물 가격 예측은 정부의 농산물 공급 규모 조절 등 자연 재해 대응을 위한 정부의 노력에 활용될 수 있을 것이다.

• 한국유기농업학회지
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• 제17권3호
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• pp.291-306
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• 2009

The purpose of this study is to analyze the difference between the consumers' willingness to purchase environmentally friendly agricultural products and the distributers. The main results are as follows; First, it appeared with the fact that the reliability of the consumer against environmentally friendly agricultural products is 50% under. So it is important to fully guarantee the certification of environmentally friendly agricultural products. Second, if the traceability and brand-name system were introduced, the consumers and dealers would more likely to purchase environmentally friendly agricultural products more than they are now. Third, it shows a significant result in certification, developing packing-materials and sale and consuming magnification intention by the t-test between consumers and dealers.

• 한국유기농업학회지
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• 제17권2호
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• pp.151-170
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• 2009

The objectives of this study were to analysis the nutrient cycles of agricultural by-products. The region, in which agricultural by-products are circulated for use within the agroecosystem for minimizing the input of artificial nutrients as well as generation of wastes, and where ecologically industrial diversity is formed, was defined as the regional agriculture focused on eco-industrial approach. Plan in stages for promoting ahead with the regional agriculture focused on eco-industrial approach is as follows: First of all, "The Consultation Body for Circulating & Using By-products" should be formed. Secondly, usage of agricultural by-products is identified to select the facilities of recycling and its location including the type and amount. Thirdly, the facilities for recycling of resources and infrastructure are installed. Finally, the facilities for recycling and resource circulation system within the area are efficiently managed.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1996년도 International Conference on Agricultural Machinery Engineering Proceedings
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• pp.293-304
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• 1996

Historical interest in dielectric properties of agricultural products and definitions of dielectric terms and basic principles governing their influence on elelctromagnetic energy are presented briefly . The nature of dielectric properties variation with frequency, temperature , and product density is discussed, Graphical data on the dielectric properties of products are presented that illustrate the dependence of these properties on moisture content, frequency, temperature, and density. Applications microwave dielectric properties of agricultural products are cited that include radio-frequency (RF) and microwave heating for seed treatment, improvement of nutritional and keeping qualities of some products, and controlling insects in grain. Uses of dielectric properties for product quality measurement and the rapid determination of moisture content are described. Principle of moisture determination in bulk grain by RF and microwave measurements are briefly presented.

• 한국토양비료학회지
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• 제46권5호
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• pp.343-350
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• 2013

The objectives of this study were to estimate the potential biomass yield by using the biomass conversion index and evaluate the potential energy production by using the energy conversion index of biomass. Estimating the total biomass yield in Korea showed 9,646.3 thousand tons produced in 2012. Subsequent evaluation of the potential energy production using the estimated biomass yield in 2012 indicated that the calorific values were varied from 3,800 to 4,500 kcal $kg^{-1}$ for crop- and from 4,100 to 4,300 kcal $kg^{-1}$ for woody-based biomass, respectively. Among the examined biomass materials, the pruned branch of a nut tree appeared to be the greatest in bio-energy production showing 6,300 kcal $kg^{-1}$ in calorific value. Total potential energy production from agricultural by-products was estimated approximately at 3,966,000 TOE. Among the agricultural by-products examined, rice straw showed the greatest energy production potential being at 2,321,000 TOE. Furthermore, it might contribute to establishing the countermeasures of biomass utility in agricultural sector based on regional distribution chart of the potential biomass and energy yields in Korea.

• 가족자원경영과 정책
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• 제9권1호
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• pp.1-15
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• 2005

This study was designrd to determination factors of purchase expansion for environment-friendly agricultural products on consumers. The 310 subjects formatted questionnaires were analyzed to frequency, percentage, descriptives, T-test and logistic regression by SPSS WIN 10.0. The results were as follows : First, it is proved that degree of cognition, standard of information acquisition, basis of valuation were significant variables, Second, it is revealed that the producer and the direct deal, the consumer organization's co-op and the food floor of large-sized discount hoarded goods for purchase places of environment-friendly agricultural products were significant variables. Third, it is proved that reduction in a price the improvement matter for purchase expansion of environment-friendly agricultural products was determination factors. Forth, it is proved that age and income for purchase expansion of environment-friendly agricultural products was determination factors. Accordingly, we should find the positive factors of purchase and consumption that it will become an important subject for environment-friendly agricultural products on consumers.