Toxigenic Aspergillus flavus and other fungi of public health concern in food and organic matter in southwest Nigeria

摘要

Six Aspergillus flavus isolates out of 17 fungal isolates were sampled from diverse food and organic matter in southwest Nigeria. All the A. flavus samples produced aflatoxin and cyclopiazonic acid. These six isolates constitute a mycobank of toxigenic species for analytical research involving the safety of food, feed and the general environment. Consumption of wholesome food materials is contingent upon accurate identification of fungal contaminants, detection and quantification of potential mycotoxins and subsequent removal and prevention of fungal contamination. Thorough investigations rest on proper maintenance of a reliable mycobank. This article introduces a mini toxigenic A. flavus bank, supported by pictorial illustrations, as a preliminary project for the establishment of a permanent culture collection centre in Nigeria.