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.
出处
《中国微生态学杂志》
CAS
CSCD
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)
关键词
黑曲霉
黄曲霉
黄曲霉毒素B1
抑制
降解
Aspergillus niger
Aspergillus flavus
Aflatoxin B1
Inhibition
Degradation