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논문 기본 정보

자료유형
학술저널
저자정보
김동술 (영국식품연구소)
저널정보
한국식품위생안전성학회 한국식품위생안전성학회지 한국식품위생안전성학회지 제10권 제4호
발행연도
1995.1
수록면
2,252 - 22,539 (20288page)

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Ochratoxin A was produced from Aspergillus ochraceus ATCC 18472 which was then orally administered into the experimental mice to study the toxic levels of ochratoxin A. AELISA (enzyme-linked immunosorbent assay) method which is more rapid and safe than conventional analytical method, was developed by using ochratoxin A antibody. This method was successfully used to measure the levels of ochratoxin Ain blood, liver and kidney of mice. In order to produce a large amount of ochratoxin A to study toxicity in the mice, Aspergillus ochraceus ATCC 18412 was incubated in the rice medium and as a result 0.5 g of ochratoxin A form rice medium (kg) was produced after extraction and purification Feed consumption and gain in body weight of mice with ochratoxin A at a level of $10 \mu\textrm{g}/g$ body weight was significantly (p<0.05) reduced as compared with control during period of 3 weeks. Ochratoxin A-BSA conjugate was made by putting 13 mole of ochratoxin A on I mole of BSA. This conjugate was used to develop ELISA method. The minmum detection level of ochratoxin A by established ELISA method was 0.5 ppb. After oral adminstraton of ochratoxin A dose of $10\;\mu\textrm{g}/g$ every two day for 3 weeks, concentration of ochratoxin A was measured in the blood, liver and kidney by ELISA method. The level of ochratoxin A was $11\;\mu\textrm{g}/dl,\;0.9 \mu\textrm{g}/g\;and\;3.7\;\mu\textrm{g}/g$ in the blood, liver and kidney, respectively.

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