Müller H M, Boley A
Institut für Tierernährung, Universität Hohenheim, BRD.
Zentralbl Mikrobiol. 1991;146(6):445-51.
Moist wheat was autoclaved, surface disinfected with NaOCl or left untreated. After inoculation with conidia of a toxigenic strain of Penicillium verrucosum kernels were stored at 10 and 4 degrees C. The production of ergosterol, a chemical indicator of fungal growth, was accelerated at both temperatures by each of the two treatments, compared to untreated wheat. The accumulation of ochratoxin A and citrinin was accelerated by each of the two treatments at 10 degrees C, whereas it was accelerated or retarded at 4 degrees C. It is concluded that the kinetics of growth and toxin production of Penicillium verrucosum during cold storage of wheat under real agricultural conditions cannot be predicted from in vitro studies with autoclaved or surface disinfected wheat.
将潮湿的小麦进行高压灭菌，用次氯酸钠进行表面消毒或不进行处理。接种疣孢青霉产毒菌株的分生孢子后，谷粒在10摄氏度和4摄氏度下储存。与未处理的小麦相比，两种处理方式在这两个温度下均加速了麦角固醇（一种真菌生长的化学指标）的产生。在10摄氏度时，两种处理方式均加速了赭曲霉毒素A和桔霉素的积累，而在4摄氏度时，其积累则被加速或抑制。得出的结论是，在实际农业条件下小麦冷藏期间疣孢青霉的生长和毒素产生动力学无法通过对高压灭菌或表面消毒小麦的体外研究来预测。
