Rhodomyrtus tomentosa polyphenol dispersed zinc oxide particles and preparation method and application thereof

Abstract

A rhodomyrtus tomentosa extract dispersed nano-zinc oxide composite antibacterial feed additive material is prepared by a homogeneous precipitation method. Zinc oxide is generated in situ, dispersionis kept under the action of rhodomyrtus tomentosa polyphenol, finally coprecipitation fusion is conducted in the drying process, the nanometer primary dispersion state of zinc oxide is kept, and meanwhile the antibacterial activity of rhodomyrtus tomentosa polyphenol is also kept. Because the two materials both have antibacterial activity, the composite material shows an obvious synergistic effect. The rhodomyrtus tomentosa polyphenol dispersed nano-zinc oxide has good antibacterial performance and is suitable for being used as a feed additive.

Description

technical field [0001] The invention relates to zinc oxide nanoparticles dispersed in myrtle polyphenols and its application in feed, belonging to the field of feed additives. Background technique [0002] Myrtle, a plant of the genus Myrtle in the Myrtaceae family, is widely distributed in the Lingnan region of my country and Southeast Asian countries. As a bactericidal and anti-inflammatory herbal medicine commonly used in the folks of Lingnan and Southeast Asian countries, myrtle has recently been verified by scientists for its antibacterial properties and mechanism of action. The research group of Dr. Qiu Shengxiang from the South China Institute of Botany, Chinese Academy of Sciences has conducted a lot of research on the antibacterial compounds of myrtle and found that its leaves are very rich in phloroglucinol compounds. Gram-positive bacteria such as Staphylococcus aureus have a high antibacterial effect. However, while myrtle plants have outstanding antibacterial ...

AI Technical Summary

Problems solved by technology

The physical method is to use special pulverization technology to combine physical methods including vapor deposition, mechanical pulverization and heavy ion bombardment. The particle size of these methods is easy to control, but the expensive equipment required limits its wide use; chemical The main methods include sol-gel method, microemulsion method, spray drying method, direct precipitation method, etc. These methods have the disadvantages of harsh experimental conditions, strict control conditions, and the resulting ZnO nanoparticles are prone to agglomeration.