黑曲霉对黄曲霉生长、产毒及黄曲霉毒素B_1的影响  

Influence of Aspergillus niger on growth of Aspergillus flavus and aflatoxin B_1

作　　者：徐丹[1] 孙秀兰[1] 李永仙[2] 杨振东[1] 王洪新[1] 

机构地区：[1]江南大学食品学院,江苏无锡214122 [2]江南大学生物工程学院,江苏无锡214122

出　　处：《中国微生态学杂志》2011年第6期490-492,499,共4页Chinese Journal of Microecology

基　　金："十一五"国家科技支撑计划(2007BAK36B06);国家自然基金资助项目(20806033)

摘　　要：目的研究黑曲霉对黄曲霉生长、产毒的抑制作用及对AFB1的降解作用。方法将黑曲霉分别与黄曲霉、AFB1共同培养,定期测定培养液pH、菌丝体干重、黄曲霉孢子数、AFB1含量。结果黑曲霉与黄曲霉混合培养时,黄曲霉孢子数、AFB1含量均比单独培养的低,2组之间差异有统计学意义（P〈0.05）,抑制率达到68.06%-91.52%;加入黑曲霉后,AFB1含量降低,实验组与对照组之间差异有统计学意义（P〈0.05）,降解率为46.19%。结论黑曲霉既能抑制黄曲霉生长、产毒,又能降解AFB1。Objective To study the influence of Aspergillus niger on the growth of Aspergillus flavus and degradation of AFB1.Method Aspergillus niger was co-cultured with Aspergillus flavus and AFB1,respectively;pH,dry weight of mycelium,spores of Aspergillus flavus and content of AFB1 were determined every 3 days.Result Compared with the control group,the number of Aspergillus flavus spores and content of AFB1 were much less in competitive situation.There was a significant difference between the two groups（P0.05） and the rate of inhibition was 68.06% to 91.52%;more-over,AFB1 was reduced when Aspergillus niger was inoculated,with is a significant difference between the two groups（P0.05）,and the rate of degradation was 46.19%.Conclusion Aspergillus niger not only can inhibit the growth of Aspergillus flavus and production of AFB1,but also degrade AFB1.

关 键 词：黑曲霉 黄曲霉 黄曲霉毒素B1 抑制 降解 

分 类 号：R379.6[医药卫生—病原生物学]