• Title/Summary/Keyword: environmental friendly activity

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Isolation and In Vitro Antimicrobial Activity of Low Molecular Phenolic Compounds from Burkholderia sp. MP-1 (Brukholderia sp. MP-1 에서의 페놀화합물의 분리와 항균활성의 측정)

  • Mao, Sopheareth;Jin, Rong-De;Lee, Seung-Je;Kim, Yong-Woong;Kim, In-Seon;Shim, Jae-Han;Park, Ro-Dong;Kim, Kil-Yong
    • Korean Journal of Soil Science and Fertilizer
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    • v.39 no.4
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    • pp.195-203
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    • 2006
  • An antagonistic strain, Burkholderia MP-1, showed antimicrobial activity against various filamentous plant pathogenic fungi, yeasts and food borne bacteria (Gram-positive and Gram-negative). The nucleotide sequence of the 16S rRNA gene (1491 pb) of strain MP-1 exhibited close similarity (99-100%) with other Burkholderia 16S rRNA genes. Isolation of the antibiotic substances from culture broth was fractionated by ethyl acetate (EtOAc) solvent and EtOAc-soluble acidic fraction. The antibiotic substances were purified through a silica gel, Sephadex LH-20, ODS column chromatography, and high performance liquid chromatography, respectively. Four active substances were identified as phenylacetic acid, hydrocinnamic acid, 4-hydroxyphenylacetic acid and 4-hydroxyphenylacetate methyl ester by gas chromatographic-mass spectrum analysis. The minimum inhibition of concentration (MIC) of each active compound inhibited the growth of the microorganisms tested at 250 to $2500{\mu}g\;ml^{-1}$. The antimicrobial activity of crude acidic fraction at 1 mg of dry weight per 6 mm paper disc was more effective than authentic standard mixture (four active substances were mixed with the same ratio as acidic fraction) over a wide range of bacterial test.

A Study of the Effects on a Healthy Dietary Life and Purchase of Environmental-Friendly Food Materials According to Mother's LOHAS Lifestyle Attitudes (모(母)의 로하스 라이프스타일 태도가 친환경식자재 구매 및 건강식생활에 미치는 영향 연구)

  • Lee, Yeon-Jung
    • Journal of the Korean Society of Food Culture
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    • v.25 no.6
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    • pp.708-718
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    • 2010
  • This study was conducted to examine the effects of a healthy dietary life and purchase of environmental-friendly food materials according to a mother's lifestyles of health and sustainability (LOHAS) attitudes. The subjects consisted of 295 mothers. The findings are summarized as follows. The mother's LOHAS attitude index averaged 3.39 points out of 5 points. High LOHAS attitude items were "I participate actively in separating the trash collection" (4.16 points), and "I recycle dresses that I do not wear by taking them to the recycling center" (4.08 points). In contrast, LOHAS attitude items for "I do community service activity on the weekend" (2.57 points), and "I try to serve in the local community" (2.63 points) scored very low. A high LOHAS behavior index occurred for mothers who were "resource saving", whereas "social welfare" scored low. Mother's intention to purchase environmental-friendly food materials averaged 3.61 points. Mother's health dietary life attitude score averaged 3.52 points. When age, monthly income, and the environmental-friendly food materials purchase ratio of the mother was high, the health dietary life performance was high. The LOHAS attitude index of mothers had an impact on the purchase intention of environmental-friendly food materials in resource saving and environmental-friendly oriented propensity groups. The LOHAS attitude index of mothers impacted healthy dietary life in environmental-friendly, family and health oriented propensity groups.

The Effects of Franchise Firm's Green Leadership and Environmental Attractiveness on Environmental Marketing Strategy and Tactics, Environmental Performance (프랜차이즈 기업의 그린리더십과 환경매력도가 환경마케팅 전략과 전술 및 환경성과에 미치는 영향)

  • Kim, Kyu-Won;Seo, Min-Kyo;Lee, Jung-Un
    • The Korean Journal of Franchise Management
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    • v.8 no.1
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    • pp.19-30
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    • 2017
  • Purpose - As environmental issues, along with the growth of companies, are accelerating, social interests in eco-friendly management that requires corporate social role and responsibility are increasing. The eco-friendly management activity reflects the changes in environmental awareness of consumers. Therefore, the eco-friendly images of companies influence consumers, and the establishing of eco-friendly management strategy has become a very important factor in the greenmarket. In this regard, this study examined the impacts of green leadership and environmental attractiveness on strategic environmental marketing, tactical environmental marketing, and environmental performance towards the employees of franchisee headquarters. Research design, data, and methodology - The survey was conducted towards the 800 headquarters among 2,600 brands that are registered with the Fair Trade Commission of Korea by mail. Among the total of 162 questionnaires collected, 7 respondents were excluded for their incompletion, and thus 155 responses were used in this study. The data were analyzed with SPSS 21.0 and SmartPLS 3.0. Frequency analysis was carried out to understand the general characteristics of the subjects, and confirmatory factor analysis to measure the reliability and validity of the measurement. Correlation analysis was conducted to identify the correlation between constructs, and structural equation modeling to examine the structural relationships among the constructs. Result and Conclusions - First, green leadership had a positive impact on strategic environmental marketing, tactical environmental marketing, and environmental performance. Second, environmental attractiveness had a positive effect on strategic environmental marketing, tactical environmental marketing, and environmental performance. Finally, strategic environmental marketing and tactical environmental marketing had positive impacts on environmental performance. This study can be recognized for proposing new perspectives on eco-friendly management strategy for firms to be able to win competitive superiority and performance by embedding awareness of the importance of environmental market and suggesting practical implications on understanding of environmental attractiveness, strategies and tactics of environmental management, and environmental performance in the franchise industry.

A study on the consumers' attitudes toward pro-environment and purchasing behavior of eco-friendly fashion products for green marketing strategy (그린 마케팅 전략을 위한 친환경 패션제품에 대한 소비자의 태도와 구매행동에 관한 연구)

  • Ju, Seong-Rae;Chung, Myung-Sun
    • The Research Journal of the Costume Culture
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    • v.22 no.4
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    • pp.511-525
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    • 2014
  • This study set out to investigate consumers' attitudes toward pro-environment, and their actual purchasing behavior. It aimed to empirically examine the effects of the consumers' attitudes toward pro-environmental products, the importance of the product attributes and the perceived value of the companies' environmental activities, on their purchasing behavior of eco-friendly fashion products, including their satisfaction, trust, and repurchase intention. The questionnaires were administered on 304 married women with previous experience of buying eco-friendly fashion products. The results were as follows. First, the consumers' behavioral patterns in terms of environmental concerns and the purchasing of eco-friendly household items were significantly positive in relation to the purchasing behaviors of eco-friendly fashion products. Second, the importance of eco-friendly attributes was significantly positive in relation to the purchasing behaviors of eco-friendly fashion products. Third, the perceived value of corporate environmental activity was not related to the purchasing behaviors of eco-friendly fashion products. Finally, the purchasing behavior of eco-friendly fashion products was significantly positive in relation to the satisfaction with eco-friendly fashion products as well as the trust and repurchase intention, and satisfaction and trust positively affected the repurchase intention. The implication of the research and direction for future study were discussed.

A Study on the Designer's Demands of Building Equipment Systems and Eco-friendly Environment (생태환경·설비시스템 요구도에 관한 연구)

  • Lee, Shi-Woong;Chin, Kyung-Il;Lee, Kye-Byoung;Choi, Seung-Hee
    • KIEAE Journal
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    • v.5 no.1
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    • pp.59-65
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    • 2005
  • Eco-friendly architecture, generally speaking, is considered as the activity of planting more and designing ponds, therefore many clients and constructors prefer to avoid building so due to initial construction costs. This paper aims to examine the cognition of environmental equipment systems and the applicability of echo-friendly building constructions. We examined the designer's demands of building equipment systems and eco-friendly environment and tried to deduce desirable suggestions for the system. We should solve the fundamentals of economical problems in the construction of eco-friendly buildings and we better think that government should make it a policy to advertise it and to reform the taxation system regarding environment friendly buildings.

Development of Environmental Responsibility Index for the Manufacturing Industry by Emergy Analysis (Emergy 분석법에 의한 제조업의 환경친화성지수 개발)

  • Je, Yun Mi;Lee, Seong Mo
    • Journal of Environmental Science International
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    • v.13 no.4
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    • pp.349-357
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    • 2004
  • Emergy is a measure of the processes required to produce something expressed in units of the same energy form. Emergy based indices can provide insights into the thermodynamic efficiency of the process, the quality of its output, and the interaction between the process and its surrounding environment. However, in an industrial system, the inputs are mostly nonrenewable, renewable energy source is nearly zero, ultimate purpose is pursuit of profits in economic activity. In study, we present two indices based on emergy - EEE(Ecological Economic Efficiency) and ERI(Environmental Responsibility Index). The EEE is taken into account real value of product in market economy. The ERI is shown to be a function of the net yield of the economy, its ‘load’ on the environment and ecological economic efficiency. Manufacturing industry of Korea produced the 30% of total GDP in 2001. We applied these indices to manufacturing industry for environmental management and further sustainable industry. As a results, the highest ERI is 0.34 in recycling industries, the lowest ERI is 0.01 in coke, refined petroleum products which is dominated by ELR. The higher ERI, the more friendly to environment. The suggested indices help us understand relative contributions of various alternatives in company's production and consumption activity, and provide a tool of decision-making for the rearrangement of future industries. Furthermore, they contribute to environmental friendly operation and consumption.

The Effect of Nb2O5 on Cu-Nb-CeO2 Catalysts for Water Gas Shift Reaction of Compact Reformer (컴팩트 개질기용 수성가스전이 반응을 위한 Cu-CeO2 촉매에 대한 Nb2O5의 영향)

  • JEONG, CHANG-HOON;KIM, TAE-GWANG;BYON, HUI-JU;KIM, JU-HWAN;BAE, EUN-TAEK;SHEN, KAILIN;JEON, KYUNG-WON;JEONG, DAE-WOON
    • Journal of Hydrogen and New Energy
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    • v.31 no.1
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    • pp.57-64
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    • 2020
  • The water-gas shift reaction for the compact reformer was carried out at a gas hourly space velocity of 72,152 h-1 over the Cu-Nb-CeO2 catalysts prepared by co-precipitation method. In order to investigate the effect of Nb2O5 promotion over a Cu-CeO2 catalyst, the Nb2O5 loading amount was systematically changed from 0 to 5 wt.%. Among the prepared catalysts, the Cu-Nb-CeO2 (1%) catalyst showed the highest catalytic activity (CO conversion=61% at 400℃) as well as 100% CO2 selectivity. The high activity and stability of Cu-Nb-CeO2 (1%) catalyst are correlated to high Brunauer-Emmett-Teller surface area, small metallic Cu crystallite size, and enhanced redox property.

Selection of Antagonistic Microorganisms against Plant Pathogens from Eco-friendly Formulations (친환경 제제로부터 식물병원균에 대한 길항 미생물의 선발)

  • Gang, Guen-Hye;Cha, Jae-Yul;Heo, Bit-Na;Yi, Og-Sun;Lee, Yong-Bok;Kwak, Youn-Sig
    • Korean Journal of Environmental Agriculture
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    • v.31 no.1
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    • pp.68-74
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    • 2012
  • BACKGROUND: Some microorganisms extant in nature have ability to suppress various plant pathogens, and also can promote plant growth. Thus microorganisms are such great source of antimicrobial agents to develop antagonistic microorganism production and eco-friendly crop management. We isolated the microorganisms in various eco-friendly formulations. The suppressive abilities against plant pathogens have been characterized in vitro level. METHODS AND RESULTS: The indigenous microorganisms have been isolated from Cooked rice, Black sugar, Rice Bran, and Red clay using dilution plating method. Population of bacteria and fungi were above 107 in the all formulations. We isolated and pure cultured the microorganisms based on morphological characteristics. Three major plant pathogens (Fusarium oxysporum, Rhizoctonia solani, Phytophthora capsici) have been used to select antagonistic microorganisms. Total 20 bacteria and 9 fungi showed the pathogen growth suppression ability in vitro condition. The selected microorganisms were identified by ITS sequence similarity. CONCLUSION: All tested eco-friendly formulations contained high-density of the microorganisms. Among the isolated microorganisms, Bacillus spp. and Streptomyces spp. showed the most effective antifungal activity against the plant pathogens such as F. oxysporum, R. solani, and P. capsici. Among the selected fungi Trichoderma sp. demonstrated antifungal activity. Our results suggest that the currently adapted eco-friendly formulations might useful for sustain agricultural system.

Antifungal activities of β-thujaplicin originated in Chamaecyparis obtusa

  • Kwon, Yubin;Kim, Hyun-Sang;Kim, Hyun-Woo;Lee, Dong Woon;Choi, Yong-Hwa
    • Journal of Applied Biological Chemistry
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    • v.60 no.3
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    • pp.265-269
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    • 2017
  • Environment-friendly, commercially-available agricultural products were investigated for antimicrobial activity against Sclerotinia sclerotiorum, as a pathogen of sclerotium disease. Then ${\beta}$-thujaplicin from Chamaecyparis obtuse was investigated for antifungal activity against six kinds of pathogenic fungi. It showed a statistically significant (p <0.001) growth inhibition effect on Sclerotinia sclerotiorum as a pathogen of sclerotium disease, Rhizoctonia solani AG-4 as a pathogen of damping off, Phytophthora capsici as a pathogen of phytophthora blight, and Colletotrichum coccodes as a pathogen of anthracnose at a concentration of 50 ppm and on Stemphylium solani as a pathogen of spotting disease and Alternaria alternata as a pathogen of black mold at a concentration of 100 ppm. In conclusion, these results indicate that it may be possible to develop environment-friendly agricultural products using ${\beta}$-thujaplicin compounds.

A Study on the Eco-friendly Properties of Apartment Housing Playground in Germany (독일 공동주택 놀이터의 친환경적 특성 연구)

  • Kim, Ja Kyung
    • Korean Institute of Interior Design Journal
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    • v.24 no.5
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    • pp.87-98
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    • 2015
  • As an apartment house as well as improving quality of life is becoming one of the brands, it is increasing the importance of the outer space with the facilities in the housing complex. In particular, the outdoor playground such as the community facilities that children and adults share as the activity areas for residents has received attention. However, actually children have not used many of Korean apartment housing playgrounds that were installed formally in the scrap area according to the housing plan by residential construction standards. it is considered necessary to improve the quality of the playground in housing complex and reform it in order to make the eco-friendly play space in which children can play safely and h healthily. As an alternative, we analyzed the eco-friendly properties of the playgrounds installed in the eco-friendly housing complex in Germany and derived the main planning elements of eco-friendly playground. In the observational survey of the 10 playgrounds in 9 housing complexes in 5 regions in Germany, we evaluated the environment-friendliness of these playgrounds in the 8 fields(location and placement, ecological environment, play space, play equipment and facilities, additional facilities, materials and resources, energy saving, environmental load reduction) according to the levels(suitable, partial reflection, unsuitable, non-reflection) of reflection of eco-friendly planning factors. The following is the summary of the results about the reflection of eco-friendly planning factors. In terms of "suitable": location and placement(88.8%), play equipment and facilities(73.5%), additional facilities(60.6%), environmental load reduction(54%), and ecological environment(50%) were higher than others. In terms of "unsuitable": there was nothing. In terms of "non-reflection": energy saving(95%), additional facilities(32.2%), and materials and resources(30.9%) were in order. Therefore, on the basis of these results, this study proposed the planning indicators to be considered first and the planning factors that should be complemented and improved in the construction of apartment housing playground in future.