Korean Journal of Environmental Agriculture最新文献

{"title":"Evaluation of Efficient Pb Removal from Aqueous Solutions using Biochar Beads","authors":"Yu-Jin Park, Jae-Hoon Lee, Jun-Suk Rho, A-Young choi, Sin-Sil Kim, Seul-Rin Lee, Jong-Hwan Park, D. Seo","doi":"10.5338/kjea.2023.42.1.06","DOIUrl":"https://doi.org/10.5338/kjea.2023.42.1.06","url":null,"abstract":"","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88781237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Multi-class, Multi-residue Analysis of 59 Veterinary Drugs in Livestock Products for Screening and Quantification Using Liquid Chromatography-tandem Mass Spectrometry","authors":"Yu Ra Kim, Sun Young Park, Tae Ho Lee, Ji Young Kim, J. Choi, Guiim Moon","doi":"10.5338/kjea.2022.41.4.35","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.35","url":null,"abstract":"BACKGROUND: The objective of this study was to develop a comprehensive and simple method for the simultaneous determination of 59 veterinary drug residues in livestock products for safety management. METHODS AND RESULTS: For sample preparation, we used a modified liquid extraction method, according to which the sample was extracted with 80% acetonitrile followed by incubation at -20℃ for 30 min. After centrifugation, an aliquot of the extract was evaporated to dryness at 40℃ and analyzed using liquid chromatography combined with tandem mass spectrometry. The method was validated at three concentration levels for beef, pork, chicken, egg, and milk in accordance with the Codex Alimentarius Commission/Guidelines 71-2009. Quantitative analysis was performed using a matrix-matched calibration. As a results, at least 52 (77.6%) out of 66 compounds showed the proper method validation results in terms of both recovery of the target compound and coefficient of variation required by Codex guidelines in live-stock products. The limit of quantitation of the method ranged from 0.2 to 1119.6 ng g-1 for all matrices. CONCLUSION(S): This method was accurate, effective, and comprehensive for 59 veterinary drugs determination in livestock products, and can be used to investigate veterinary drugs from different chemical families for safety management in livestock products.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74671118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Saline Soil and Crop Growth with Bottom Ash from Biomass Power Plant Based Wood Pellet","authors":"So-Hui Kim, Seung-Gyu Lee, Jin-Ju Yun, Jae-Hyuk Park, Se-Won Kang, Ju-Sik Cho","doi":"10.5338/kjea.2022.41.4.36","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.36","url":null,"abstract":"BACKGROUND: The salt in soil interrupts crop growth. Therefore, water resources are used to remove any salt found in the soil. However, water resources have been re-duced by global warming; thus, a new study is required in-to reducing the salt in soil. Recently, the bottom ash (BA) of a biomass power plant was found to be similar to biochar. Hence, it can be used to remove heavy metals and wastewater through the adsorption characteristics of BA. The objective of this study was to evaluate the improvement effects on crop growth in saline soil containing the BA from biomass power plants.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76377508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-occurrence Analyses of Antibiotic Resistance Genes and Microbial Community in Human and Livestock Animal Feces","authors":"Ji-sun Jeong, Aprajita Bhandari, T. Unno","doi":"10.5338/kjea.2022.41.4.39","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.39","url":null,"abstract":"BACKGROUND: Antibiotics used in animal husbandry for disease prevention and treatment have resulted in the rapid progression of antibiotic resistant bacteria which can be introduced into the environment through livestock fe-ces/manure, disseminating antibiotic resistant genes (ARGs). In this study, fecal samples were collected from the livestock farms located in Jeju Island to investigate the relationship between microbial communities and ARGs. METHODS AND RESULTS: Illumina MiSeq sequencing was applied to characterize microbial communities within each fecal sample. Using quantitative PCR (qPCR), ten ARGs encoding tetracycline resistance ( tetB , tetM ), sulfonamide resistance ( sul1 , sul2 ), fluoroquinolone resistance ( qnrD , qnrS ), fluoroquinolone and aminoglyco-side resistance ( aac(6')-Ib ), beta-lactam resistance ( bla TEM , bla CTX-M ), macrolide resistance ( ermC ), a class 1 integrons-integrase gene ( intI1 ), and a class 2 integrons-integrase gene ( intI2 ) were quantified. The results showed that Firmicutes and Bacteroidetes were dominant in human, cow, horse, and pig groups, while Firmicutes and Actinobacteria were dominant in chicken group. Among ARGs, tetM was detected with the highest number of copies, fol-lowed by sul1 and sul2 . Most of the genera belonging to Firmicutes showed positive correlations with ARGs and integron genes. There were 97, 34, 31, 25, and 22 genera in chicken, cow, pig, human, and horse respectively which showed positive correlations with ARGs and integron genes. In network analysis, we identified diversity of microbial communities which correlated with ARGs and integron genes. CONCLUSION(S): In this study, antibiotic resistance pat-terns in human and livestock fecal samples were identified.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77095826","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Application Effect of Chlorella Fusca CHK0059 as a Biofertilizer for Strawberry Cultivation","authors":"Young‐Nam Kim, Jun-Hyeok Choi, Song-Yeob Kim, Hyeonji Choe, Yerim Shin, Young-Eun Yoon, Keum-Ah Lee, Min-Jeong Kim, Yong Bok Lee","doi":"10.5338/kjea.2022.41.4.34","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.34","url":null,"abstract":"BACKGROUND: Green algae (Chlorella spp.) has been widely used as a biofertilizer to improve the crop yield and quality. However, available information is not enough to verify the mechanism of green algae’s beneficial impact on strawberry. This study was conducted to investigate the effect of Chlorella fusca CHK005 application on the growth and nutrient status of strawberry plant and fruit characteristics. METHODS AND RESULTS: A total of 800 seedlings of strawberry variety ‘Kuemsil’ were planted. Once a week, C. fusca culture solution (1.0 × 107 cells mL-1) was applied into soil via irrigation in four different concentrations: no application (control), 1/1000 times (× 0.5), 1/500 times (× 1), and 1/250 times (× 2). Result showed that growth of strawberry plant was enhanced by Chlorella application and the highest impact on fresh weight (FW) and chlorophyll content of the plants were observed in × 2 treatment, followed by × 1, × 0.5, and control treatments. The phosphorus (P) concentration in the plant was significantly higher in × 1 and × 2 treatments compared to control. In case of fruit quality, sugar content (°Brix), hardness, and FW were lowest in control, but these values increased as application levels of Chlorella were higher. Also, P and K contents in the fruits increased with increasing the application levels and significant correlation between P content and oBrix in the fruits was found. CONCLUSION(S): Overall, Chlorella application seemed to improve plant growth and fruit quality by increasing the utilization efficiency of P and K in strawberries. These two authors contributed equally to this work. * Corresponding author: Yong Bok Lee Phone: +82-55-772-1967; Fax: +82-55-772-1969; E-mail: yblee@gnu.ac.kr Korean Journal of Environmental Agriculture Korean J Environ Agric. 2022;41(4):282-287, https://doi.org/10.5338/KJEA.2022.41.4.34 Online ISSN: 2233-4173 Published online 18 December 2022, Printed 31 December 2022 Print ISSN: 1225-3537 딸기재배를 위한 생물비료로 Chlorella fusca CHK0059의 시비효과 김영남, 최준혁, 김송엽, 최현지, 신예림, 윤영은, 이금아, 김민정, 이용복 경상국립대학교 응용생명과학부(BK21), 경상국립대학교 농업생명과학연구원(IALS), 농촌진흥청 국립농업과학원 유기농업과 Application Effect of Chlorella Fusca CHK0059 as a Biofertilizer for Strawberry Cultivation Young-Nam Kim, Jun Hyeok Choi, Song Yeob Kim, Hyeonji Choe, Yerim Shin, Young-Eun Yoon, Keum-Ah Lee, Min-Jeong Kim, Yong Bok Lee (Division of Applied Life Science (BK21), Gyeongsang National University, Jinju 52828, Korea, Institute of Agriculture and Life Science (IALS), Gyeongsang National University, Jinju 52828, Korea, Organic Agriculture Division, National Academy of Agriculture Science, Rural Development Administration, Wanju 55365, Korea) Received: 23 November 2022/ Revised: 7 December 2022/ Accepted: 11 December 2022 Copyright c 2022 The Korean Society of Environmental Agriculture This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permi","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88586236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Establishment of Acceptable Daily Intakes (ADIs) and Risk Assessment for Ephedrine, Menichlopholan, Anacolin, and Etisazole Hydrochloride","authors":"Min Ji Kim, Ji Young Kim, Jangduck Choi, Guiim Moon","doi":"10.5338/kjea.2022.41.4.32","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.32","url":null,"abstract":"BACKGROUND: Prior to implementing a positive list system (PLS), there is a need to establish acceptable daily intake (ADI) and maximum residue limit (MRL) for veterinary drugs that have been approved a few decades ago in South Korea. On top of that, chronic dietary exposure assessment of veterinary drug residues should be performed to determine whether the use of these veterinary drugs would cause health concerns or not. METHODS AND RESULTS: To establish the ADI, the relevant toxicological data were collected from evaluation reports issued by international organizations. A slightly modified global estimate of chronic dietary exposure (GECDE) model was employed in the exposure assessment owing to the limited residual data. Therefore, only the ADI of ephedrine was established due to insufficient data for the other veterinary drugs. Thus, instead of ADI, the threshold of toxicological concern (TTC) value was used for the other drugs. Lastly, the hazard index (HI) was calculated, except for etizazole hydrochloride, due to the potential of mutagenicity. CONCLUSION(S): The HI values of ephedrine, meni-chlopholan, and anacolin were found to be as high as 6.4%, suggesting that chronic dietary exposure to the residues from these uses was unlikely to be a public health concern. Further research for exposure assessment of veterinary drug residues should be performed using up-to-date Korean national health and nutrition examination survey (KNHANES) food consumption data. In addition, all relevant available data sources should be utilized for identifying the potentials of toxicity.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77805051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption Effect of Heavy Metals (Zn, Ni, Cd, Cu) in Aqueous Solution Using Bottom Ash of Biomass Power Plant","authors":"So-Hui Kim, Seung-Gyu Lee, Jin-Ju Yun, Jae-Hyuk Park, Se-Won Kang, Ju-Sik Cho","doi":"10.5338/kjea.2022.41.4.31","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.31","url":null,"abstract":"BACKGROUND: The number of biomass power plants is increasing around the world and the amount of wastes from power plants is expected to increase. But the bottom ash (BA) is not recycled and has been dumped in landfill. This study was conducted to find out functional groups of BA and adsorption rate of heavy metals on BA. METHODS AND RESULTS: The BA was dried in oven at 105℃ for 24 hours, and characterized by analyzing the chemistry, functional group, and surface area. The adsorption rates of heavy metals on BA were evaluated by different concentration, time, and pH. As a result, the adsorption amount of the heavy metals was high in the order of Zn> Cu> Cd> Ni and the removal rates of Zn, Cu, Cd, and Ni by BA was 49.75, 30.20, 32.46, and 36.10%, respectively. Also, the maximum adsorption capacity of BA was different by the heavy metal in the environmental conditions, and it was suggested that the isotherms for Zn, Ni, Cd, and Cu were adequate to Langmuir model. CONCLUSION(S): It is suggested that it would be effec-tive to remove heavy metals in aqueous solution by using BA from biomass power plants in South Korea.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"142 12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83038638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Liquid Fertilizer of Application from Rendered Livestock Carcass Residues on Maize Cultivation","authors":"Jae-Hyuk Park, Se-Won Kang, Jin-Ju Yun, Han-Na Cho, Seung-Gyu Lee, So-Hui Kim, Seong-Woo Choi, Ju-Sik Cho","doi":"10.5338/kjea.2022.41.4.29","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.29","url":null,"abstract":"BACKGROUND: Liquid fertilizers can provide nutrients to crops effectively and quickly. Amino acid liquid fertilizers produced by decomposing the residues of rendered livestock carcasses are expected to be effective in improving the productivity and quality of crops. METHODS AND RESULTS: The treatment conditions for maize cultivation were control (Cn), inorganic fertilizer (IF), inorganic fertilizer and rendering residue liquid fertilizer (IF+RALF), compost (CP), compost and rendering residue liquid fertilizer (CP+RALF). Crop productivity, sugar content, and nutrient uptake were inves-tigated after maize harvest in the field applied with liquid fertilizers. Maize yields ranged from 87.6-158 g/plant, and the yield increased by 7.9% and 12.9% in IF+RALF and CP+RALF than in IF and CP, respectively. The maize sugar content increased in the range of 0.1-0.5 brix % by rendering residue liquid fertilizer (RALF) fertilization, and the sugar content was the highest in CP+RALF. There was no significant change in soil chemical properties of the soil due to liquid fertilizer treatment. CONCLUSION(S): RALF increased yield and sugar content in maize cultivation, and fertilization with organic fertilizers was more effective for maize cultivation than inorganic fertilizers. Residues of rendered livestock carcass can be recycled as amino acid fertilizers, which can","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80792261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sorption Characteristics of Tetracycline in Water on Microplastics","authors":"Yu-jin Seo, Ruri Lee, E. H. Jho","doi":"10.5338/kjea.2022.41.4.33","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.33","url":null,"abstract":"BACKGROUND: Plastics that are used in our daily lives largely end up in the environment. In agricultural environments, plastic wastes and microplastics can be found due to the uses and improper management of plastic products (e.g., vinyl greenhouses and mulching vinyl). Microplastics can also interact with contaminants in the agricultural environment. Therefore, this study was set to investigate the sorption characteristics of tetracycline, one of widely used antibiotics, on microplastics. METHODS AND RESULTS: The sorption tests were carried out with the tetracycline solutions (0-30 mg L -1 ) and microplastic films prepared from low density polyethylene (LDPE) and polyvinyl chloride (PVC). The re-sidual tetracycline concentrations were analyzed and fitted to the Freundlich and Langmuir isotherm models. The tetracycline sorption patterns on LDPE and PVC films were described better with the Freundlich isotherm model than the Langmuir isotherm model. The isotherm model parameters suggested that the maximum sorption amount of tetracyline was greater for PVC, while the sorption af-finity was greater for LDPE. CONCLUSION(S): Different types of microplastics can have different sorption characteristics of tetracycline. Therefore, there is a need for continuous research on the interaction of various types and shapes of microplastics and contaminants in the environment.","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82445042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Remediation of As-contaminated Soil Using Magnetite and Bottom Ash","authors":"Sehee Oh, Min Woo Kang, Jong Cheol Lee, H. Lee, Hyun-Seog Roh, Yukwon Jeon, Dong Jin Kim, Sang Soo Lee","doi":"10.5338/kjea.2022.41.4.27","DOIUrl":"https://doi.org/10.5338/kjea.2022.41.4.27","url":null,"abstract":"","PeriodicalId":17872,"journal":{"name":"Korean Journal of Environmental Agriculture","volume":"137 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79698991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}