植物源杀菌剂的复配及其微乳液的制备.pdfVIP

dissolved oil was largest and comprehensive performance was best. The property of microemulsion was an important indicator. The physical properties such as size, pH, viscosity and concentration were detected by Malvern nano-sizer, fine pH meter, rotating viscometer and UV spectrophotometer; the stability was evaluated by centrifugation, salinity test, NaOH neutralization, low temperature and long-term experiments. The results showed that the compound oil microemulsion was clear and transparent liquid. The average diameter was 13.4 nm, pH=5.70, the average content of eugenol was 25.04 mg/ml. The presence of salt ions had a negative effect on the microemulsion system and microemulsion system had better stability under the condition of alkalinity, low temperature and long-term storage. The microemulsion had an inhibitory effect on Escherichia coli and Staphylococcus aureus, according with the characters of microemulsion and the demands to the antibacterial activity. KEY WORDS: Botanical bactericide, Compound, Microemulsion, Pseudo ternary phase diagram, Stability 目 录 第一章 前言 1 第二章 文献综述 2 2.1 植物源杀菌剂的研究概况2 2.1.1 国内外对于抑菌植物资源的研究进展2 2.1.2 植物抑菌活性成分的研究4 2.1.3 植物源杀菌剂的作用机理5 2.1.4 植物源杀菌剂抗菌效果的生物检测方法6 2.1.5 植物源杀菌剂的复配6 2.1.6 植物源杀菌剂的应用 8 2.2 微乳液的研究概况9 2.2.1 微乳液的结构类型 10 2.2.2 微乳液的形成机理 10 2.2.3 微乳液的制备方法 13 2.2.4 微乳液的组成及其成分的选择 14 2.2.5 微乳液的应用领域 15 2.3 本论文的研究内容和意义 16 第三章 植物源杀菌剂的复配及其杀菌性能的测试 17 3.1 前言 17 3.2 实验材料及仪器 17 3.2.1 实验材料 17