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金銀嬉(Kim, Eun-Hee),李雄圭(Lee, Woong-Kyu) 청운대학교 관광산업연구소 2015 관광산업연구 Vol.9 No.1
Coffee is of global importance, ranking second to petroleum in world commodity trade. Moreover, coffee is of particular importance as a major export commodity in many low-income countries in Latin America, Africa, and Asia. The primary purpose of the international political economy of coffee is to integrate political science and economics in analyzing the ten-fold increase in world coffee prices and cultures over. Coffee is traded in one of the few international markets ever subject to effective political regulation. In open-economy politics, we explore the cultures, the operations, and the collapse of the International Coffee Organization, an international “government of coffee”that was formed in the 1960s. In so doing, we address key issues in international political economy and comparative politics, and analyzes the creation of political institutions and their impact on markets. Drawing upon literature review in domestic and overseas, we explore the domestic sources of international politics within a unique theoretical framework that blends game theoretic and more established approaches to the study of politicaleconomic. This study will appeal to those interested in international political economy, comparative politics, and the political economy of development, especially in Latin America and Africa, and to readers wanting to learn more about the economic and political realities that underlie the coffee market. It is also must reading for those interested in “the new institutionalism” and modern meanings of political-economy in coffee.
Macrolide계 항생물질 동시분석법 확립 및 모니터링
박상욱(Sang-Ouk Park),이상호(Sang-Ho Lee),안종훈(Jong-Hoon Ahn),정영지(Young-Ji Jung),김성철(Seong-Cheol Kim),김지연(Ji-Yeon Kim),금은희(Eun-Hee Keum),성주현(Ju-Hyun Sung),김상엽(Sang-Yub Kim),장영미(Young-Mi Jang),강찬순(Chan-Soon K 한국식품과학회 2010 한국식품과학회지 Vol.42 No.3
축산물 중 macrolide계 항생물질 3종을 신속분석하기 위하여 효과적인 전처리법을 설정하고 고속액체크로마토그라피(HPLC)를 이용한 동시분석법을 제시하였다. 대상물질은 tilmicosin, tylosin, spiramycin이며, 확립된 분석법을 이용하여 모니터링을 실시하기 위하여 전국 6개 도시인 서울, 부산, 대전, 인천, 대구, 광주에서 수입원산지가 표시된 쇠고기와 돼지고기 및 그 가공품을 수거하여 분석하였다. 전처리법에 있어서 solid phase extraction(SPE)법에 비하여 액상추출법이 더 높은 회수율을 나타내었으며 전처리 단계도 간단하여 대상 항생물질을 분석하기에 적절하였다. 3종의 항생물질 분리를 위한 컬럼은 C18(250 ㎜×4.6 ㎜, 5 ㎛)을 사용하였으며, HPLC 이동상은 0.025M phosphate buffer(pH 2.5) 및 acetonitrile을 이용한 gradient 조건을 설정하였다. UV 검출파장은 spiramycin 경우 232 ㎚이고, tilmicosin과 tylosin은 288 ㎚을 이용하였다. 평균회수율은 83.0-90.2%이였으며, 검출한계는 각각 7(spiramycin), 12(tilmiconsin), 12(tylosin) ng/g으로 나타났다. 수입 축산물의 항생물질에 대한 안전성을 검토하기 위하여 국내 유통중인 수입축산물 및 그 가공품을 대상으로 하여 모니터링을 실시한 결과, 시료는 전국 6개 대도시에서 126건 구입하였으며 모든 시료에서 macrolide계 항생물질이 검출되지 않았다. In this study, a simple and rapid pre-treatment method based on liquid extraction was applied for the simultaneous determination of three macrolides (spiramycin, tylosin, and tilmicosin) residues. In these studies, the stock farm products was used as a matrix sample. When the liquid extraction method was compared with the solid phase extraction (SPE) method, the former showed higher recovery percentages and simpler steps than the latter. The macrolids were separated using a reverse-phase C18 (250 ㎜×4.6 ㎜, 5 ㎛) column and a gradient elution with mobile phases consisting of phosphate buffer (pH 2.5) and acetonitrile. Tylosin and tilmicosin were detected at 288 ㎚ and spiramycin was detected at 232 ㎚. The average recovery percentage ranged between 83.0-90.2% for samples spiked with the three macrolids at 50 and 100 ng/g The validation results showed that the limit of detection (7 (spiramycin), 12 (tilmiconsin), 12 (tylosin) ng/g)) was under the regulatory tolerances and the linearity from calibration curves was satisfactory for determining the multi-residue of three macrolids in farm products. Monitoring samples were collected at the main cities in Korea as Seoul, Busan, Deajeon, Incheon, Deagu, and Gwangju. Microlide antibiotics were not detected in most samples.