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1978年元月,英国伯恩默思一个学校购来的30公斤纸袋装面粉,发现部分粘结,呈圆盘形或不规则的团块。团块表层及纸袋内衬可见绿色和橙色斑点。经检查认为这是由于运输货车仅顶部盖有帆布,纸袋有的地方被淋湿,因此致面粉发霉、粘结、变色。粘结面粉直接镜检,可见面粉变色部分有大量菌丝体。取面粉样品,用薄层色层分离法发现了一种霉菌毒素—棕曲霉毒素,并在实验室中形成二种衍生物棕曲霉素 A 醋酸盐和棕曲霉素α。粘结面粉含棕曲霉毒素 A 6.25mg/kg,过筛出来(即未粘结)的面粉含0.01mg/
In January 1978, 30 kg of paper bagged flour was purchased from a school in Burnham, England, and found to be partially bonded, in the shape of a disc or irregular disk. The surface of the lumps and paper bag lined with green and orange spots. The inspection found this to be because the transport van was covered with canvas only on the top and the paper bag was wet somewhere, resulting in moldy, sticky and discolored flour. Direct inspection of gluten flour, showing a large number of flour discoloration of mycelium. A sample of flour was taken and a mycotoxin, a mycotoxin, was found by thin-layer chromatography and two derivatives of A. senticosus A acetate and setamectin alpha were formed in the laboratory. The gluten flour contains 1.25 mg / kg of aflatoxin A, the flour that is sifted out (ie unbonded) contains 0.01 mg /