米扁虫对玉米中黄曲霉毒素B1含量影响的研究

Influence of Ahasverus advena （Waltl） on aflatoxin B1 content in maize

了解在非霉变和不产毒的储存条件下,原粮中昆虫对真菌毒素含量的影响具有重要生态学意义。测定了含黄曲霉毒素B1(AFB1)的玉米分别接入15、45和135头/kg米扁虫幼虫和成虫后不同存放时间AFB1含量。结果表明,米扁虫幼虫和成虫接入一定时间后均可导致玉米中AFB1含量和霉菌总数显著降低,米扁虫成虫对AFB1含量降低的作用大于幼虫,玉米破碎粒率越低时AFB1含量降低越显著,虫口密度越大、接入时间越长,AFB1含量降低越显著。

It is significant to understand the influence of insects among stored grain on the content of mycotoxin in the storage condition of non-mouldy and non-toxic.Aflatoxin B1(AFB1)contents in the maize were detected after being infected by larvae and imagos of Ahasverus advena(Waltl)in different time.The results indicated that AFB1 content and mold quantity decreased significantly in the maize infected by the larvae and imagos of A.advena.Imagos were more effective in decreasing AFB1 content than larvae.The lower the broken kernels rate was,the more effective in decreasing AFB1 content.AFB1 content in maize decreased significantly with the insect densities increasing and time going.