中文摘要：玉米烯酮（ZEN）和赭曲霉毒素A（OTA）是广泛出现于谷物和谷物产品中的次生有毒代谢物。本文研究了电子束照射（EBI）对玉米中ZEN和OTA以及受辐射玉米品质的影响。结果证实EBI能够有效降解玉米中的ZEN和OTA，辐射也会影响玉米品质。
外文摘要：Zearalenone (ZEN) and ochratoxin A (OTA) are secondary toxic metabolites widely present in grains and grain products. In this study, the effects of electron beam irradiation (EBI) on ZEN and OTA in corn and the quality of irradiated corn were investigated. Results indicated that EBI significantly affected ZEN and OTA. The degradation rates of ZEN and OTA at 10 kGy in solution were 65.6% and 75.2%, respectively. The initial amounts significantly affected the degradation rate. ZEN and OTA in corn were decreased by the irradiation dose, and their degradation rates at 50 kGy were 71.1% and 67.9%, respectively. ZEN and OTA were more easily degraded in corn kernel than in corn flour. Moisture content (MC) played a vital role in ZEN and OTA degradation. High MC was attributed to high ZEN and OTA degradation. The quality of irradiated corn was evaluated on the basis of irradiation dose. L* value changed, but this change was not significant (p > 0.05). By contrast, a* and b* decreased significantly (p < 0.05) with irradiation dose. The fatty acid value increased significantly. The pasting properties, including peak, trough, breakdown, and final and setback viscosities, were also reduced significantly (p < 0.05) by irradiation. Our study verified that EBI could effectively degrade ZEN and OTA in corn. Irradiation could also affect corn quality.
外文关键词：zearalenone；ochratoxin A；electron beam irradiation；degradation；quality
作者：Luo, Xiaohu；Qi, Lijun；Liu, Yuntao
作者单位：Jiangnan University
期刊名称：TOXINS
期刊影响因子：3.029
出版年份：2017
出版刊次：3
点击下载：电子束照射对自然污染的玉米中玉米烯酮和赭曲霉毒素A以及玉米品质参数的影响