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중선량 감마선 조사가 전분류의 색도 및 지방질 산화에 미치는 영향
안경아 ( Kyung A An ),김현구 ( Hyun Ku Kim ),권중호 ( Joong Ho Kwon ) 한국식품저장유통학회(구 한국농산물저장유통학회) 2013 한국식품저장유통학회지 Vol.20 No.1
The effects of gamma irradiation at medium dose levels on commercial starches were investigated in terms of its color and lipid oxidation. The CS, SS, and PS samples were irradiated at 0, 1.5, 3, 4.5 and 6 KGy by a Co-60 gamma irradiator and used for measuring Hunter`s colors and TBA valus. Irraiation doses apploed did not cause apparent changes in Hunter color parameters between the control and irradiated groups. But, the decrease in lightness for CS and the increase in both redness for SS and yellowness for PS were observed, respectively resulting in slight increase in overall color difference upon irradiation. Browning intensity observed with the naked eye for gelatinized starches by irradiation doses was also gradually increased along with irrading tion dose, which was more remarkale in SS. The thiobarbituric acid values of samples showed a dose-dependant increase with≥0.9964 of R2(p<0.06)
유통 축·수산물 중 잔류벤질페니실린의 검출 및 모니터링
이효정(Hyo Jeong Lee),강영원(Young Won Kang),이수민(Soo Min Lee),안경아(Kyung A An),이륜경(Ryun Kyung Lee),서상철(Sang Cheol Seo),이주희(Ju Hee Lee),임무혁(Moo Hyeog Im),이정림(Jeong Rim Lee),홍충만(Choong Man Hong),장문익(Moon Ik Ch 한국식품과학회 2014 한국식품과학회지 Vol.46 No.3
국내 유통 중인 돼지고기, 소고기, 닭고기, 넙치 232건의 시료에 대해 벤질페니실린의 잔류량을 조사하기 위해 현행 식품공전 상 축·수산물 중 벤질페니실린 분석법에 대한 검증을 실시하고 모니터링을 수행하였다. 그 결과 벤질페니실린에 대한 분석법은 CODEX에서 요구하는 기준에 적합한 정밀성과 정확성을 보였다. 벤질페니실린의 잔류량 모니터링 결과 축산물 193건 중 11건, 수산물 39건 중 2건 총 13건이 검출되었다. 검출된 수준은 축·수산물 12건에서 0.001-0.004 mg/kg으로 잔류허용기준 이하로 검출되었으나, 축산물 중 국내산 돼지고기 1건에서 잔류허용기준을 초과한 0.134 mg/kg 수준으로 검출되어 해당 유관기관에 부적합 통보 및 사후관리를 요청하였다. 따라서 벤질페니실린 등 항생제는 다른 동물용 의약품에 비해 사용빈도가 많은 만큼 지속적으로 잔류모니터링과 관리가 필요할 것으로 판단된다. Penicillin and its salts, including the benzatine, procaine, and sodium salts, have been widely used in human and veterinary medicine. Owing to their low toxicity, they currently form the most important group of antibiotics. However, overdose and abuse of these antibiotics may lead to potential risk in human health. Therefore, this study was conducted to validate the analysis method established by the Korea Food Code in 2012 and to monitor the levels of benzylpenicillin residues in products with reference to the maximum residue level (MRL). Of the 232 product samples tested, benzylpenicillin was detected in 11 livestock products and 2 marine products. Benzylpenicillin concentrations were found to be lower than the MRL in 12 products; however, the concentration of benzylpenicillin was found to be greater than the MRL in 1 pork product. The limit of quantification (LOQ) for benzylpenicillin was found to be 0.001-0.002 mg/kg, with an average recovery of 90.4-115.3%. Calibrations showed good linearity of 0.995 over a range of 0.002-0.05 mg/kg.
임도선(Do-Seon Lim),황슬기(Seul-Ki Hwang),안경미(Kyung-Mi An),조한아(Han-A Cho) 한국보건복지학회 2020 보건과 복지 Vol.22 No.4
본 연구에서는 간경병증 환자의 원인질병인 만성 B형간염, 만성 C형간염, 알코올성 간질환이 재원일수에 미치는 영향을 분석하였다. 건강보험심사평가원의 2013, 2014년 입원환자데이터를 이용하여 간경병증 환자를 K740 ∼ K746(만성 B형간염(B180, B181)), 만성 C형간염(B182), 알코올성 간질환(K70, K701, K7010, K7011))으로 정의하였다. 총 147명을 대상으로 간경병증 환자의 특성에 따른 원인상병의 차이와 간경병증 환자의 원인상병이 재원일수에 미치는 영향을 분석하였다. 독립변수는 성별, 연령, 의료보장 유형, 진료결과(퇴원, 사망)를 사용하였으며, 종속변수는 재원일수로 하여 포아송 회귀분석을 실시하였다. 본 연구결과, 간경병증 환자는 만성 B형간염, 만성 C형간염, 알코올성 간질환의 원인질환 상병을 동반하며 원인질환에 따라 재원일수에 차이가 있었고, 특히 만성 C형간염을 동반한 간경병증 환자는 만성 B형간염 환자에 비해 재원일수가 1.2배(20%) 증가된 것을 확인하였다. 만성 C형간염의 예방 및 바이러스보유자에 대한 선별검사를 통해 특별한 증상이 없는 초기 단계에 이들을 찾아내고, 이를 적절한 관리체계에 포함하는 임상적 관리방안을 모색할 필요가 있겠다. The purpose of this study was to investigate the effects of chronic hepatitis B, chronic hepatitis C, and alcoholic liver disease, which are the cause of diseases in patients with liver cirrhosis, on length of stays. Patients with cirrhosis of the liver were defined as K740 to K746 using Health Insurance Review and Assessment Service National Inpatient Sample in 2013 and 2014 (Chronic hepatitis B (B180, B181), chronic hepatitis C (B182), alcoholic liver disease (K70, K701, K7010, K7011)). In a total of 147 patients, the difference in cause of diseases according to the characteristics of cirrhosis patients and the effect of cause of diseases in patients with liver cirrhosis on length of stay were analyzed. In the Poisson regression analysis, sex, age, type of medical coverage, treatment outcome (discharge, death) were used as independent variables, and length of stays were used as dependent variables. As a result of this study, patients with cirrhosis were accompanied by the cause of diseases of chronic hepatitis B, chronic hepatitis C, and alcoholic liver disease. In particular, it was confirmed that patients with cirrhosis with chronic hepatitis C had a 1.2-fold (20%) increase in length of stays compared to patients with chronic hepatitis B. Through the prevention of chronic hepatitis C infection and screening tests for virus carriers, it is necessary to find them in the early stages without any special symptoms, and seek clinical management plans to include them in an appropriate management system.
광자극발광법(PSL)에 의한 방사선 조사 건조향신료의 검지 특성
박은령(Eun-Ryong Park),강혜순(Hye-Soon Kang),안현주(Hyun-Joo Ahn),안경아(Kyung-A An),조수열(Soo-Yeul Cho),김희연(Hee-Yun Kim),김동술(Dong-Sul Kim),김도훈(Do-Hoon Kim),강찬순(Chan-Soon Kang) 한국식품과학회 2010 한국식품과학회지 Vol.42 No.2
최근 방사선 조사는 식품의 발아억제, 살충, 살균 및 숙도조절을 위한 화학약품 처리 등의 대체방안 뿐만 아니라 식품의 저장 및 가공기술로서 인정받고 있으며, 우리나라를 비롯한 약 40개국에서 상업적인 조사식품을 생산하고 있어 이에 대한 정확한 정보를 제공하기 위한 신뢰성 있는 검지기술이 요구되고 있다. 방사선 조사식품 검지법 대상 식품 중 건조향신료 19품목에 방사선 조사 최대 허용선량인 10 kGy까지 ??Co 감마선을 단계별로 조사하고 이를 광자극발광법(Photostimulated Luminescence, PSL)을 이용하여 검지특성을 확인하였다. PSL 측정 결과, 건조향신료 19품목 중 14품목은 1 kGy 조사된 시료에서, 1 품목은 5 kGy에서 조사시료(positive)의 threshold value인 5000 이상의 photon count/60 sec로 측정되어 방사선 조사여부의 확인이 가능하였다. 하지만 후추류, 육두구, 계피의 경우는 특이적으로 PSL 측정에 낮은 감도를 보이거나 미네랄 함량이 낮아서 최대 허용선량인 10 kGy 조사시료에서조차 방사선 조사여부의 확인이 불가능하였으며, 이 품목의 경우 열발광분석법(Thermoluminescence, TL) 등을 이용한 방사선 조사여부의 판정이 필요하였다. 또한 식물의 잎을 이용하는 향신료는 비조사 시료와 1 kGy 및 10 kGy 조사시료를 혼합하였을 때, 1 kGy 선량으로 조사된 시료가 1% 혼합된 시료에서도 방사선 조사여부의 확인이 가능하였다. This study attempted to determine whether Photostimulated Luminescence (PSL) is applicable for the detection of post-irradiated foods by measuring the PSL photon counts of unirradiated and irradiated dried spices and herbs. A total of 19 dried spices and herbs was irradiated with a ??Co γ-ray source at 1, 5 and 10 kGy followed by measurement of PSL photon. The photon counts of unirradiated samples below 700 correspond to negative. Fifteen samples irradiated over 1 kGy showed photon counts of more than 5,000, indicating irradiation treatment. Intermediate counts (photon count 700-5,000) were observed in irradiated white/black pepper, nutmeg and cinnamon bark at 10 kGy. These results suggest that it is possible to detect whether dried spices and herbs were irradiated by analyzing PSL, with the exception of white/black pepper, nutmeg and cinnamon bark. Irradiated white/black pepper, nutmeg and cinnamon bark containing low levels of minerals were not sensitive to PSL. Therefore, further investigation is sugguested to be performed by Thermoluminescence (TL) analysis or another validated or standardized method.
이주희(Ju-Hee Lee),이윤정(Yoon-Jeong Lee),강인호(In-Ho Kang),김도훈(Do-Hoon Kim),강신정(Shin-Jeong Kang),안경아(Kyung-A An),이륜경(Ryun-Kyung Lee),서상철(Sang-Chul Suh),이정림(Jeong-rim Lee) 한국농약과학회 2014 농약과학회지 Vol.18 No.3
Fenpyroximate is acaricide of pyrazole group. This acaricide have already been permitted for herb cultivation. This experiment was conducted to establish a determination method for fenpyroximate residue in herbal medicines using HPLC-PDA and HPLC-MS/MS. Fenpyroximate residue was extracted with acetone from samples of herbal which Liquorice Root (Glycyrrhiza uralensis) and Safflower Seed (Carthamus tinctorius Linne). The extract was diluted with saturated saline water and dichloromethane liquid-liquid partition (extraction) was followed to recover fenpyroximate from the aqueous phase. Amino propyl (NH<SUB>2</SUB>) and florisil column chromatography was additionally employed for final clean up of the extract. The fenpyroximate was quantitated by HPLC-PDA and HPLC-MS/MS. The herbals were fortified with fenpyroximate at 2 or 3 levels per crop. Mean recovery ratio were ranged from 72.0 to 106.4%. The coefficients of variation were ranged from 0.2 to 4.4. Therefore, this analytical method was reproducible and sensitive enough to determine the residue of fenpyroximate in herbal medicines.