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玉米粉中黃曲霉毒素B1微波降解技術(shù)
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國家自然科學(xué)基金資助項(xiàng)目（31071550）,、“十二五”國家科技支撐計(jì)劃資助項(xiàng)目（2012BAK17B06,、2012BAD31B01）和?；究蒲星嗄曩Y助項(xiàng)目（7109021104）


Degradation of Aflatoxin B1 in Corn Flour by Microwave Radiation
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    摘要:

    應(yīng)用微波輻照技術(shù)降解玉米粉中黃曲霉毒素B1(AFB1)，采用免疫親和柱凈化-高效液相色譜-柱后衍生的方法測(cè)定玉米粉中AFB1的含量,。試驗(yàn)考察了微波輻照功率、微波輻照時(shí)間以及AFB1初始含量對(duì)其降解效率的影響,，并與傳統(tǒng)加熱法進(jìn)行比較,。結(jié)果表明：微波輻照主要利用非熱效應(yīng)對(duì)AFB1進(jìn)行降解，當(dāng)功率為250 W,、時(shí)間為30 min時(shí),，AFB1降解率大于90%,，殘留量在國標(biāo)和歐盟安全限量范圍之內(nèi),。微波輻照處理對(duì)玉米粉營(yíng)養(yǎng)品質(zhì)影響較小，且AFB1降解產(chǎn)物毒性明顯降低,，不會(huì)產(chǎn)生二次污染,。

    Abstract:

    A microwave irradiation technique was applied for degradation of aflatoxin B1(AFB1) in corn flour, and immunoaffinity column clean-high performance liquid chromatography-post-column derivatization method was applied to determine the content of AFB1. The effects of microwave power, irradiation time and initial quality of AFB1 on degradation efficiency were investigated. Microwave irradiation was compared with conventional heating method. The results showed that the degradation of AFB1 was performed by non-thermal effect. The optimized microwave power was 250 W and irradiation time was 30 min. Under this condition, the degradation rate would reach to 90%. The residues of AFB1 were in the safety limit range of the national standard and the European Union. The nutrition quality of corn flour was slightly affected by the microwave irradiation treatment. The toxicity of AFB1 was reduced obviously and there was no secondary pollution. Therefore, the microwave irradiation can be used as an effective method for the degradation of AFB1. 

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王周利,王玉堂,劉學(xué)波,崔璐,劉朝霞,岳田利.玉米粉中黃曲霉毒素B1微波降解技術(shù)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2013,44(12):193-197. Wang Zhouli, Wang Yutang, Liu Xuebo, Cui Lu, Liu Zhaoxia, Yue Tianli. Degradation of Aflatoxin B1 in Corn Flour by Microwave Radiation[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(12):193-197.

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  • 在線發(fā)布日期: 2013-12-05
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