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紫花地丁(Viola yedoensis Makino.)是堇菜科堇菜属多年生草本植物,因其植物体中含有黄酮类、香豆素类、cycloviolacin VY1环肽等化学成分,具有良好的抗菌、抗病毒活性[1-3]。同时,因其花色美观、抗逆性强又被用作优良的园林绿化地被植物[4-5]。研究表明,紫花地丁含有的黄酮苷类和有机酸类化合物对猪巴氏杆菌等多种常见微生物具有较强的抑制作用,对兔流感、肺炎以及鸭大肠杆菌耐药质粒的消除都有
Viola yedoensis Makino. Is a perennial herbaceous genus Viola, because of its plants contain flavonoids, coumarins, cycloviolacin VY1 annulus peptide and other chemical components, has good antibacterial and antiviral activity [1-3]. At the same time, because of its beautiful colors, strong resistance and was used as an excellent ground cover plants [4-5]. Studies have shown that the flavonoids glycosides and organic acids compounds of Viola yedoensis have a strong inhibitory effect on a variety of common microorganisms such as Pasteurella multocida, the elimination of flu, pneumonia, and Escherichia coli resistant plasmids in rabbits