인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Toxoplasma gondii is the causative agent of toxoplasmosis, an obligate intracellular parasite of warm-blooded animals; the definitive host is cats and felines. Transmission of this parasite in herbivorous intermediate hosts occurs through contaminated water and forage by the oocyst stage of the parasite, and in cats and humans, it occurs through eating contaminated meat and milk by the cystic stage, tachyzoite and oocyst of the parasite. Some people consume the milk of various animals, including cows, sheep, goats, camels and donkeys. Such kinds of milk are supposed to be a good source of protein and vital minerals. Nonetheless, they are frequently ingested uncooked or not heated with high temperatures to destroy dangerous microbes. Hence, the potential viability of T. gondii tachyzoites in the milk of these animals under various temperatures needs to be investigated, as this could be a significant risk indicator of human infections. For this purpose, purchase 1000.0 mL of cow's milk from milk supply centres and then divide it into different parts, and after adding T. gondii tachyzoites of the RH strain (10<sup>7</sup> × 5) to each milk sample, they are subjected to rapid pasteurization temperatures (75°C for 15 s), slow pasteurizations (60°C for 15 min), temperatures of 25°C and 35°C for 3, 6 and 12 h and refrigerator temperatures (4°C for 6, 12 and 24 h), and after centrifugation, the resulting precipitate was injected three times into three mice. One mouse without parasite tachyzoite injection was considered a negative control, and three mice injected with parasite tachyzoites were considered as positive controls. Our results showed that in the first trial, T. gondii tachyzoites treated at 75°C, 60°C, 35°C, 25°C and 4°C survived after 15 s and caused the death of mice. However, in the second trial, at 75°C, the parasite tachyzoites were completely eliminated after both 15 min and 3 h, and all treated mice survived. In contrast, in the third trial, at 4°C, 25°C and 35°C, after 15 min, 3, 6, 12 and 24 h, the parasite survived and caused the death of mice. Statistical analysis showed that the mortality of mice treated at 75°C and 60°C during the treatment periods was significant. This study showed that milk possibly contaminated with parasitic tachyzoites can survive in rapid and slow pasteurization and refrigerator temperatures, suggesting heating milk at 60°C for more than 15 min is recommended.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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