Methods PCV was cultured in Charles culture medium in different conditions,Citreoviridin(CIT) was extracted and quantitated by HPLC.

• 方法用察氏培养基在不同温度、pH和培养时间条件下培养黄绿青霉菌,提取黄绿青霉素(CIT),用高效液相色谱法检测毒素含量。