Key Laboratory of Clay Mineral Applied Research of Gansu Province, Center of Eco-Materials and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China.
Molecules. 2020 Mar 9;25(5):1231. doi: 10.3390/molecules25051231.
To overcome the poor stability of natural lutein to environmental factors, layered double hydroxide was incorporated by a green mechanical grinding process. The influences of external factors (chemical reagents, heating and light) on the stability of lutein before and after being loaded were evaluated. The results confirmed that lutein was mainly adsorbed on the surface of layered double hydroxide (LDH) via the chemical interaction. Compared with pure lutein, the thermal decomposition of lutein/LDH was improved from 100 °C to 300 °C, and the retention ratio of lutein was increased by about 8.64% and 21.47% after 96 h of light exposure and accelerated degradation, respectively. It is expected that the stable lutein/LDH composites may constitutean additive in animal feed.
为了克服天然叶黄素对环境因素的稳定性差的问题，采用绿色机械研磨法将层状双氢氧化物掺入其中。评估了外部因素（化学试剂、加热和光照）对负载前后叶黄素稳定性的影响。结果证实，叶黄素主要通过化学相互作用吸附在层状双氢氧化物（LDH）的表面上。与纯叶黄素相比，叶黄素/LDH 的热分解温度从 100°C 提高到 300°C，在光照 96 小时和加速降解后，叶黄素的保留率分别提高了约 8.64%和 21.47%。预计稳定的叶黄素/LDH 复合材料可能成为动物饲料中的添加剂。
