• Journal of Applied Biological Chemistry
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• v.56 no.4
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• pp.199-204
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• 2013

The nematicidal, antifungal and antioxidant activities of methanol extracts from six Vietnamese native medicinal plants were evaluated by various assays in vitro. Of the plant extracts tested, Terminalia nigrovenulosa was found to possess the highest activity when compared to the others. The leaves and bark of T. nigrovenulosa showed strong inhibitory activity against Meloidogyne incognita and Fusarium solani. The DPPH (1,1-Diphenyl-2-picryl-hydrazyl) radical scavenging, reducing power and total antioxidant activities of T. nigrovenulosa bark were higher than that of the remainder plant extracts. Chitinase activity of these plants was also investigated using SDS-PAGE. The results obtained in the present study indicate that T. nigrovenulosa leaf extracts are the greatest potential source as nematicides and fungicides for the control of M. incognita and F. solani. In particularly, T. nigrovenulosa bark extracts could be used as a potential source of commercially viable levels of natural antioxidant.

• Journal of Korean Society of Rural Planning
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• v.9 no.1 s.18
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• pp.1-9
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• 2003

This study intends to select the planning techniques and develop the layouts of environmentally friendly rural villages. As the results of this study, the planning techniques of rural villages are as follows: (1) Development of agricultural technology(organic farming), (2) Environmentally friendly layout considering natural energy, conservation of natural landscape and ecosystem, and sewage and rainwater, (3) Community restoration considering joint work, economic interchange between urban people and rural residents, and unity of rural resident's opinion, and (4) Activation of rural tourism considering satisfaction of tourists, conservation of ecological and cultural resources, and resident's income increasement. According to these 4 techniques, this study also developed 4 general models: (1) land-use and flow, (2) green and blue networks, (3) networks of ecological and cultural resources, and (4) finally residential model, divided rural villages into 2 types. Therefore when we develop a countryside, we can apply to these models, considering the current ecological and cultural resources conditions.

• Journal of the Korean Society of Food Culture
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• v.29 no.1
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• pp.1-8
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• 2014

This study was carried out to investigate the consumption behaviors of environmentally-friendly agricultural products, including satisfaction of purchases. Questionnaires completed consumers were statistically analyzed. Regarding purchase frequencies of environmentally-friendly agricultural and animal products, consumers consumed them 1 time per month. No significant differences in consumption by age, living area, family type, or BMI were found. Exactly 38.2% of consumers preferred to purchase items in the packing amount of 0.2-0.5 kg, whereas 39.7% of consumers preferred amounts from 0.5-1.0 kg. Significant differences in packing amount were found according to age (p<0.05) and family type (p<0.01). However, there were no significant differences according to living area or BMI group. Many consumers made decisions based on the outer packing label (69.6%). Significant differences by age and living area were not found, whereas there was significant difference according to family type (p<0.05). Consumers answered that they purchased products in a general supermarket (24.7%) and cooperative (24.2%). Significant differences were found by age and living area (p<0.01) but not by family type. Consumer satisfaction of purchases scored 3.39 out of 5 points. In conclusion, significant differences in consumer satisfaction were not found according to age, living area, family type, or BMI.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.2 no.3
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• pp.64-73
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• 1999

The purpose of this study is to establish the management plannings for the conservation and environmentally friendly use of Korean coastal wetlands. The function, economic value, and the necessity for the conservation of coastal wetlands are described. The current management status, Korean Governmental policies for the use of coastal wetlands, and their problems are surveyed and analysed. The management plannings for the environmentally friendly use of Korean coastal wetlands is suggested as follows: (1) The coastal wetlands need to be divided into 3 different regions based on PSR(Pressure, State, Response) of OECD. (2) Each region should be managed by appropriate management plans which are suggested in Chapter IV of this paper. Finally, in order to realize these management plannings the change of Governmental system and laws are suggested as follows: (1) The change of relevant laws is required. Additionally, each region should managed by proper governmental agencies. (2) The EIA(Environmental Impact Assessment) system should be improved. (3) The participation of regional people should be guaranteed in the decision making processes of the business and other important planning regarding coastal wetlands. (4) The system which primed the ecological value of coastal wetlands should be established.

• Korean Journal of Organic Agriculture
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• v.19 no.3
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• pp.309-327
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• 2011

The paper analyzed on the level of consumer member's awareness to green marketing strategies (4P's; product, price, place and promotion strategies) of Hansalim specialty shops for environmentally friendly agri-products. For the study, Hansalim-Cheonanasan members had been surveyed. Consumers purchase environmentally friendly agri-products because quality and freshness of those is good. The difference in amount of the average monthly purchase between loyal customers and disloyal customers is about 130,000 won. And customer's awareness is that the first is promotion strategy, the second product strategy, the third place strategy, the last price strategy. The average monthly purchase is related with product strategy in correlations between the 4P's each other. If Hansalim maintains a product strategy, promotes extensively and keeps their product standard, more consumers will purchase Hansalim products because the most important one of effect of green marketing strategies on consumer behavior is products. Hansalim needs to go into action to increase recognition. Some of consumers have misconcepts or don't know about the 4P's well. If Hansalim promotes positively considering interrelationship about 4P's strategies or other strategies, the consumers awareness will be changed more effectively. This study shows that balanced 4P's is better than only one superior strategy because of the correlation amomg green marketing strategies.

• Mycobiology
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• v.49 no.3
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• pp.294-296
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• 2021

An endolichenic fungus, Xylaria grammica strain EL000614, showed strong nematicidal effects against plant pathogenic nematode, Meloidogyne incognita by producing grammicin. We report genome assembly of X. grammica EL000614 comprised of 25 scaffolds with a total length of 54.73 Mb, N50 of 4.60 Mb, and 99.8% of BUSCO completeness. GC contents of this genome were 44.02%. Gene families associated with biosynthesis of secondary metabolites or regulatory proteins were identified out of 13,730 gene models predicted.

• Research in Plant Disease
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• v.27 no.2
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• pp.79-83
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• 2021

The aim of the present study was to develop a sensitive and specific detection method for the rapid detection of apple scar skin viroid (ASSVd) in apple leaves. The resulting reverse transcription recombinase polymerase amplification (RT-RPA) assay can be completed in 10 min at 42℃, is 10 times more sensitive than conventional reverse transcription polymerase chain reaction, and can specifically amplify ASSVd without any cross-reactivity with other common apple viruses, including apple stem grooving virus, apple stem pitting virus, and apple chlorotic leaf spot virus. The reliability of the RT-RPA assay was assessed, and the findings suggested that it can be successfully utilized to detect ASSVd in field-collected samples. The RT-RPA assay developed in the present study provides a potentially valuable means for improving the detection of ASSVd in viroid-free certification programs, especially in resource-limited conditions.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.844-847
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• 2007

As the interest of environment is increasing all over the world, the effort to protect environment in many industries is also being made. In the case of Construction, the effort keeps being made in effect as well. Therefore, this paper suggests the environmental-friendly smart component system which contains multiple performances such as Environmental-friendly, high-durability, variability, renovation and comfort and could be the basic factor of future building. As the enquired performances for the development of environmentally-friendly intelligent component system are grasped, the key technology to be embodied are analyzed. In the result of the analysis, SI(Skeleton & Infill) housing and Home automation are deduced as the key technology. Furthermore, it look through concept and development tendency of the main factors. Finally environmental-friendly smart component system is suggested with conversing the factors deduced.

• Journal of the Korean Dietetic Association
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• v.16 no.1
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• pp.49-61
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• 2010

The purpose of this study was to determine basic information on the microbiological quality of environmentally friendly vegetables used in school foodservices. Comparisons were made on the microbiological quality of eight different kinds of vegetables grown by environmentally friendly agricultural methods and ordinary agricultural methods to determine if there were significant differences. In the raw materials, aerobic plate counts were as follows: lettuce 4.58~7.43 log CFU/g, winter plowing chinese cabbage 5.61~7.36 log CFU/g, Korean leek 5.81 log CFU/g to TNTC (too numerous to Count), cabbage 5.93~6.43 log CFU/g, sesame leaves 3.15~5.23 log CFU/g, cucumber 5.00~5.79 log CFU/g, cherry tomato 2.96~5.40 log CFU/g, paprika 1.30~3.52 log CFU/g. In the comparison of the microbiological quality between environmentally friendly and ordinary agricultural vegetables, their acceptable ratio was the same (81.3%) and the mean aerobic plate counts was not significantly different. In the comparison of the microbiological quality between the leafy vegetables and the fruity vegetables, the fruity vegetables had a 100% acceptable ratio regardless of the agricultural method used to grow them, while the leafy vegetables had an acceptable ratio of 70%. In terms of the aerobic plate counts, the leafy vegetables had significantly higher counts; the leafy vegetables 5.87${\pm}$1.18 log CFU/g, the fruity vegetables 4.12${\pm}$1.54 log CFU/g.

• Journal of Science Education
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• v.38 no.1
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• pp.144-159
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• 2014

The purpose of this study was to investigate the effects of the elementary students' environmentally friendly attitude and environment literacy through Edward de Bono's Six Thinking Hats in science class. The objects of this study were the sixth grade of both an experimental class (25 students) and a comparative class (24 students) a the S elementary school science class located in Incheon city. The results of this study were as follows: First, the change of environmentally friendly attitude in the experimental group applying the six thinking hats program have statistically meaningful differences (p<.05). Second, the environmental literacy of the experimental group was improved somewhat, but it has no meaningful differences compared the other group statistically. Therefore, the six thinking hats program applied in this study might be useful to improve the students' environmentally friendly attitude in elementary school science class.