摘要
早期预警是防控储藏玉米污染黄曲霉毒素B1(AFB_1)的重要手段。将不同含水量的玉米置于各种温度环境下进行储藏试验,研究过氧化氢酶活性变化与玉米污染黄曲霉毒素B1(AFB_1)的关系,结果表明,两者数据变化的趋势一致,AFB_1是过氧化氢酶活性的二次曲线函数(相关性系数大于0.95)。储藏温度和玉米含水量等条件可改变所含霉菌产生AFB_1和升高过氧化氢酶活性的速度,但不影响数值变化的趋势。在各种储藏条件下,过氧化氢酶活性变化可比玉米中AFB_1含量显著变化的起始点提前4~21d。因此,借助检测过氧化氢酶活性的方法可以早期预警储藏玉米污染AFB_1。
The early warning is significant forpreventing stored maize from aflatoxin B1（AFB1）contamination.To reveal the relationship between the change of catalase activity and AFB1 contamination in stored maize,the storage experiments of maize were carried out at different temperatures and moisture contents.The results showed the increasing trend of catalase activity and contaminated AFB1 was accordant,which displayed a quadratic equation with the correlation coefficient of more than 0.95.The rates of catalase activity increase and AFB1 production by mould in maize could be affected by storage temperature and maize moisture content,but their increasing trend was not changed.Moreover,it was found that catalase activity increase 4to 21 days before the significant increase of AFB1 content under each maize storage condition.Therefore,the early warning of AFB1 contamination in stored maize could be achieved by the detection of catalase activity of mould in stored maize.
出处
《食品与机械》
CSCD
北大核心
2017年第1期110-113,121,共5页
Food and Machinery
基金
国家重点基础研究发展计划(973计划)(编号:2013CB127804)
河南省教育厅自然科学项目(编号:14A180004)
河南省高校科技创新团队支持计划(编号:15IRTSTHN019)
