Mazen M B, el-Kady I A, Saber S M
Botany Department, Faculty of Science, University of Assiut, Egypt.
Mycopathologia. 1990 Jun;110(3):133-8. doi: 10.1007/BF00437536.
Thirty-nine species and 16 fungal genera were isolated from Egyptian cotton seeds, cotton seed meal and cotton seed cake on 1% glucose-Czapek's agar medium incubated at 28 degrees C. Aspergillus was the most frequent genus and it emerged in 87-100% of the samples contributing 70-98% of total fungi in the three substrates tested. The most common species were A. niger, A. flavus, A. fumigatus, A. terreus and Rhizopus stolonifer; A. niger, A. fumigatus and Penicillium corylophilum; and A. niger, A. flavus, A. terreus, A. nidulans and Rhizopus stolonifer, respectively. Cotton seeds and cotton seed products were naturally contaminated by aflatoxin B1 and B2. About 16% of the different substrates tested were positive for aflatoxin contamination. No citrinin, ochratoxin A, patulin, sterigmatocystin, diacetoxyscirpenol, T-2 toxin or zearalenone were detected in the samples assayed.
在28摄氏度下于1%葡萄糖-察氏琼脂培养基上培养，从埃及棉籽、棉籽粕和棉籽饼中分离出39个物种和16个真菌属。曲霉属是最常见的属，在87%-100%的样本中出现，在所测试的三种基质中占总真菌的70%-98%。最常见的物种分别是黑曲霉、黄曲霉、烟曲霉、土曲霉和匍枝根霉；黑曲霉、烟曲霉和嗜棒青霉；以及黑曲霉、黄曲霉、土曲霉、构巢曲霉和匍枝根霉。棉籽和棉籽产品天然受到黄曲霉毒素B1和B2的污染。所测试的不同基质中约16%黄曲霉毒素污染呈阳性。在所检测的样本中未检测到桔霉素、赭曲霉毒素A、展青霉素、柄曲霉素、二醋酸镳草镰刀菌烯醇、T-2毒素或玉米赤霉烯酮。
