Detoxification of DON by photocatalytic degradation and quality evaluation of wheat.
Detoxification of DON by photocatalytic degradation and quality evaluation of wheat.
复制标题
光催化降解DON的脱毒及小麦品质评价
作者：
脱氧雪腐镰刀菌烯醇（DON）是谷物中最常见的污染物。因此，寻找一种高效、安全的脱毒技术在食品领域具有重要意义。本研究采用上转换纳米TiO2复合材料对小麦中的DON进行光催化降解。通过对小麦基本理化指标的研究，评价了光催化氧化对小麦品质的影响。结果表明，当光催化剂UCNP@TiO2投加量为8 mg mL−1，料液比为1：2时，90 min内小麦中DON的去除率可达72.8%。此外，复合物可以通过洗涤容易地去除，从而确保小麦中纳米材料的低暴露剂量。对小麦营养品质的研究表明，光催化技术对小麦淀粉、蛋白质、氨基酸含量影响不大（p > 0.05）。小麦粉的白度降低，黄度增加。小麦淀粉的扫描电镜图像显示，随着光照时间的延长，淀粉颗粒表面受到不同程度的破坏。小麦的脂肪酸值、湿面筋含量和糊化特性在灌浆期显著下降（p < 0.05）。本研究表明光催化降解技术在毒素去除方面具有良好的前景。
Deoxynivalenol (DON) is regarded as the most common contaminant of cereal grains. Therefore, finding an efficient and safe detoxification technology is of great significance in the field of food. In this study, upconversion nanoparticles@TiO2 composites were used for the photocatalytic degradation of DON in wheat. The effect of photocatalytic oxidation on wheat quality was also evaluated by studying the basic physical and chemical indexes of wheat. The results showed that the removal rate of DON in wheat could reach 72.8% within 90 min when the dosage of photocatalyst UCNP@TiO2 was 8 mg mL−1 and the ratio of wheat to liquid was 1 : 2. In addition, the composites can be easily removed by washing, thus ensuring the low exposure dose of the nanomaterials in wheat. Studies on the nutritional quality of wheat showed that photocatalytic technology had little effect on the starch, protein, amino acid content of wheat (p > 0.05). The whiteness of wheat flour decreased and the yellowness increased. The scanning electron microscopy (SEM) images of wheat starch showed that the surfaces of starch granules were damaged to varying degrees with the prolongation of illumination time. Meanwhile, the fatty acid value and wet gluten content and pasting properties of wheat decreased significantly during photocatalysis (p < 0.05). This study demonstrates that photocatalytic degradation will have a promising prospect in toxin removal.
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模拟太阳光下基于上转换纳米粒子@TiO2复合材料的纳米结构光催化剂光催化降解微囊藻毒素-LR
影响因子：
4.6
作者：
Wu S;Lv J;Wang F;Duan N;Li Q;Wang Z
通讯作者：
Wang Z
影响因子：
6
作者：
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通讯作者：
Masoodi, F. A.
影响因子：
2.9
作者：
Gecgel, Umit;Gumus, Tuncay;Arici, Muhammet
通讯作者：
Arici, Muhammet
DOI：
10.1016/j.ijfoodmicro.2005.08.018
发表时间：
2006-03-15
影响因子：
5.4
作者：
Maneerat, C;Hayata, Y
通讯作者：
Hayata, Y
影响因子：
22.1
作者：
Xu, Tongguang;Zhang, Liwu;Zhu, Yongfa
通讯作者：
Zhu, Yongfa