Boudra H, Le Bars P, Le Bars J
Laboratoire de Pharmacologie-Toxicologie, Institut National de la Recherche Agronomique, Toulouse, France.
Appl Environ Microbiol. 1995 Mar;61(3):1156-8. doi: 10.1128/aem.61.3.1156-1158.1995.
The decomposition of ochratoxin A (OTA) was examined, under different temperature and moisture conditions. The calculated half-lives, corresponding to 50% values, were 707, 201, 12, and 6 min, respectively, at 100, 150, 200, and 250 degrees C for dry wheat and 145, 60, and 19 min, respectively, at 100, 150, and 200 degrees C for wheat heated under wet conditions. The presence of water (50%) increased the decomposition of OTA at 100 and 150 degrees C; the opposite was observed at 200 degrees C. Complete destruction of OTA within the limits of this study (100 to 250 degrees C) was not obtained.
在不同温度和湿度条件下,对赭曲霉毒素A(OTA)的分解情况进行了研究。对于干燥小麦,在100、150、200和250摄氏度时,计算得出的半衰期(对应50%分解率)分别为707、201、12和6分钟;对于在潮湿条件下加热的小麦,在100、150和200摄氏度时,半衰期分别为145、60和19分钟。水分含量为50%时,在100和150摄氏度下会加速OTA的分解;而在200摄氏度时则观察到相反的情况。在本研究的温度范围(100至250摄氏度)内,OTA并未完全被破坏。