园林植物挥发油成分分析及抗菌活性测定

运用试管稀释法和平板涂布法,测定黄皮,白皮松,香榧,侧柏,龙柏,雪松,圆柏等7种常见园林植物的挥发油对表皮葡萄球菌,金黄色葡萄球菌,大肠杆菌及绿脓杆菌的抗菌活性(包括抑菌和杀菌两个方面)。结果显示,所有供试植物挥发油均具有一定的抗菌活性。对金黄色葡萄球菌的抑菌活性为侧柏=龙柏>圆柏>雪松>香榧;对表皮葡萄球菌的抑菌活性为侧柏>圆柏>龙柏=雪松=黄皮>白皮松>香榧;仅圆柏挥发油对大肠杆菌具有抑菌作用,所有供试植物挥发油对绿脓杆菌均无抑菌作用。实验证明,圆柏,侧柏,龙柏,雪松具有较强抗菌活性,是较为理想的城市生态保健型绿化模式的栽培树种。

Volatile Oils and Antibacterial Activities of Gardening Plant Species

The antibacterial activities of volatile oils from seven kinds of common gardening plants,such as Clausena lansium,Pinus bungeana,Torrega grandis,Platycladus orientalis,Sabina chinensis(L.) Ant.cv.Kaizuca,Cedrus deodara and Sabina chinensis(L.) Ant.,were tested against Staphylococcus epidermidis,Staphylococcus aureus,Escherichia coli and Pseudomonas aeruginosa by the tube dilution method and spread-plate method.The results showed that all of the volatile oils from the tested plants had antibacterial activities on a certain extent.The ranging of the inhibitory activities against S.aureus was of P.orientalis=S.chinensis(L.) Ant.cv.Kaizuca>S.chinensis(L.) Ant.>C.deodara>T. grandis.The ranging of the inhitory activities against S.epidermidis was of P.orientalis>S.chinensis(L.) Ant.>S.chinensis(L.) Ant.cv.Kaizuca=C.deodara=C.lansium>Pinus bungeana>T.grandis.Among the tested samples,the volatile oil from S.chinensis(L.) Ant.was the only one which had the ability to inhibit E.coli,and none of them had effect to P.aeruginosa.It was proved that the volatile oils from Sabina chinensis,Platycladus orientalis,Sabina chinensis,Cedrus deodara had stronger antibacterial activities,therefore,they could be viewed as ideal choice for ecological healthy virescence mode(in cities.)