Construction of ZnO@mSiO2 antibacterial nanocomposite for inhibition of microorganisms during Zea mays storage and improving the germination
Dongdong Zhang, Hu Si, Qiong Wu, Jinfeng Zhao, Ke-Rui Su, Li-Qin Tan, Xianqing Zhou
Abstract
Zea mays (Maize) is prone to mildew due to its rich nutrition and large embryo, resulting in the decline of edible quality, germination rate and even threatening people's health. In this study, ZnO nanoparticles were prepared by hydrothermal method to inhibit the growth of microorganisms on the surface of Zea mays. For its safe and efficient application, mesoporous silica (mSiO2) was modified on its surface and successfully prepared [email protected]2 Nanocomposites. The [email protected]2 nanocomposites were successfully prepared and characterized by TEM, EDS, XRD, FT-IR, and it could significantly inhibit two model bacteria and three model fungi. After mixing with Zea mays and 42 days of simulated storage, they could significantly inhibit the growth of microorganisms in Zea mays, ensure the stability of Zea mays quality and improve the germination rate of Zea mays. The [email protected]2 nanocomposites prepared in this study provide a new idea for the safe storage of Zea mays.