The L16(44)orthogonal design experiments were used to research gallnut antibacterialsubstances on extraction process.
采用L16（44）正交设计实验，对五倍子抑菌物质的提取工艺进行研究。
2
Flavonoids are the most important biological substances in propolis, which have many biological activities such as antioxidative and antibacterial activities.
类黄酮类化合物具有抗氧化、抗菌等诸多生物活性，是蜂胶中最重要的生物活性物质。
3
METHODS Chromatographic and spectroscopic methods were used to isolate and identify the related substance in isepamicin, and antibacterial activity of two related substances was studied.