The incidence of fungi and mycotoxins in South Africa wheat and wheat-based products
The incidence of fungi and mycotoxins in South Africa wheat and wheat-based products
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DOI：
10.1080/03601230500357348
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发表时间：
2006-01-01
影响因子：
2
通讯作者：
Dutton, MF
中科院分区：
文献类型：
--
作者：
Mashinini, K;Dutton, MF
本次调查是为了调查南非小麦的真菌和真菌毒素污染，范围从田间生长到加工小麦产品。从南非的不同种植区采集小麦样品，并使用一系列方法（包括色谱法、免疫亲和/荧光法和细胞毒性试验）筛选真菌和真菌毒素。从南非的超市和零售店采集了类似的样本，并以类似的方式进行了分析。结果表明，在所有样品类型的小麦中都能检测到一系列真菌和真菌毒素。主要真菌污染物为镰刀菌属。及其伴随的真菌毒素，特别是脱氧雪腐镰刀菌烯醇，这与世界其他地区的观察结果一致。一个有趣的观察结果是，从镰刀菌污染严重的田地中采集的小麦样品被伏马菌素B-1污染，而伏马菌素通常与这种作物无关。更令人担忧的是，直接向公众出售的小麦产品中霉菌毒素和真菌的水平较低但持续存在。
This investigation was undertaken to survey the fungal and mycotoxin contamination of South African wheat ranging from that growing in the field to processed wheat products. Samples of wheat were taken from various growing areas in South Africa and screened for fungi and mycotoxins, using a range of methodologies, including chromatography, immunoaffinity/fluorimetry, and cytotoxicity testing. Similar samples were taken from supermarkets and retail outlets in South Africa and analyzed in a similar manner. The result showed that a range of fungi and mycotoxins could be detected in wheat in all these sample types. The major fungal contaminants were Fusarium spp. and their attendant mycotoxins, in particular deoxynivalenol, which is in keeping with the observations made in the rest of the world. An interesting observation was that samples of wheat taken from the field with heavy Fusarium contamination were contaminated with fumonisin B-1, which is not normally associated with this crop. Of more concern were the low but persistent levels of mycotoxins and fungi in wheat-based products sold directly to the public.