Impact of food additive titanium dioxide on the polyphenol content and antioxidant activity of the apple juice

Impact of food additive titanium dioxide on the polyphenol content and antioxidant activity of the apple juice
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食品添加剂二氧化钛对苹果汁多酚含量及抗氧化活性的影响

DOI:
10.1016/j.lwt.2021.112574
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发表时间:
2022-01
期刊:
LWT - Food Science and Technology
影响因子:
--
通讯作者:
Xiaoqiang Chen
Xiaoqiang Chen
中科院分区:
其他
文献类型:
--
作者:
Qian Li;Jing Li;Mengran Duan;Lu Liu;Yinxin Fu;David Julian McClements;Tiantian Zhao;Hongyi Lin;Jinglan Shi;Xiaoqiang Chen

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食品级二氧化钛(TiO 2)通常含有纳米级部分,而只有少数研究调查了TiO 2纳米颗粒(NPs)通过口服暴露对其他食品成分的影响。研究了纳米TiO 2对苹果汁中多酚类物质含量、生物可利用性和抗氧化活性的影响。结果表明,添加500 mg/100 g TiO 2纳米粒子显著降低了苹果汁中总多酚和主要单体多酚的含量,这是由于多酚与TiO 2纳米粒子形成电荷转移复合物聚集所致。此外,添加TiO 2纳米颗粒以剂量依赖性方式降低了苹果多酚的生物可及性和抗氧化活性。该研究表明,TiO 2纳米颗粒可以结合复杂的食品基质中的多酚,并提供了有价值的见解,食品级TiO 2纳米颗粒的影响,其他食品成分口服后。
Food grade titanium dioxide (TiO2) usually contains a nanosized fraction, while only a few studies had investigated the effects of TiO2nanoparticles (NPs) on the other food components via oral exposure. This work investigated the impact of TiO2NPs on the content, bioaccessibility and antioxidant activity of polyphenols in the apple juice. Results indicated that adding 500 mg/100 g TiO2NPs significantly decreased the contents of total polyphenol and the main individual polyphenols in the apple juice, which was attributed to the formation of polyphenol-TiO2NPs charge transfer complexes aggregation. Additionally, the addition of TiO2NPs reduced the bioaccessibility and antioxidant activity of apple polyphenols in a dose dependent manner. This study indicated that TiO2NPs can bind polyphenols in the complex food matrix, and provided valuable insights into the influence of food grade TiO2NPs on the other food components after oral consumption.
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