畜牧与饲料科学
畜牧與飼料科學
축목여사료과학
ANIMAL HUSBANDRY AND FEED SCIENCE
2011年
12期
5-5,11
,共2页
徐多多%高阳%潘志%刘艳%高其品
徐多多%高暘%潘誌%劉豔%高其品
서다다%고양%반지%류염%고기품
细菌生物膜%大肠杆菌%金黄色葡萄球菌
細菌生物膜%大腸桿菌%金黃色葡萄毬菌
세균생물막%대장간균%금황색포도구균
bacterial biofihn%Escherichia coli%Staphylococcus aureus
通过大肠杆菌和金黄色葡萄球菌BBF的模型,考察肉桂酸、连翘苷、大黄素、亚硫酸穿心莲内酯对BBF形成的影响。在37℃下将细菌培养24h使其形成BBF后加入样品继续培养24h,用结晶紫染色。通过测量吸光度来考察单体对BBF的影响。结果表明,大黄素、连翘苷、肉桂酸、亚硫酸穿心莲内酯(浓度为1.000mg/mL)对金黄色葡萄球菌BBF的抑制率分别为67.26%、10.91%、18.26%、17.05%;对大肠杆菌BBF的抑制率分别为32。99%、36.13%、49.79%、17.05%。由此可见,大黄素对金黄色葡萄球菌BBF的抑制作用较强,肉桂酸对大肠杆菌BBF的抑制作用较强。
通過大腸桿菌和金黃色葡萄毬菌BBF的模型,攷察肉桂痠、連翹苷、大黃素、亞硫痠穿心蓮內酯對BBF形成的影響。在37℃下將細菌培養24h使其形成BBF後加入樣品繼續培養24h,用結晶紫染色。通過測量吸光度來攷察單體對BBF的影響。結果錶明,大黃素、連翹苷、肉桂痠、亞硫痠穿心蓮內酯(濃度為1.000mg/mL)對金黃色葡萄毬菌BBF的抑製率分彆為67.26%、10.91%、18.26%、17.05%;對大腸桿菌BBF的抑製率分彆為32。99%、36.13%、49.79%、17.05%。由此可見,大黃素對金黃色葡萄毬菌BBF的抑製作用較彊,肉桂痠對大腸桿菌BBF的抑製作用較彊。
통과대장간균화금황색포도구균BBF적모형,고찰육계산、련교감、대황소、아류산천심련내지대BBF형성적영향。재37℃하장세균배양24h사기형성BBF후가입양품계속배양24h,용결정자염색。통과측량흡광도래고찰단체대BBF적영향。결과표명,대황소、련교감、육계산、아류산천심련내지(농도위1.000mg/mL)대금황색포도구균BBF적억제솔분별위67.26%、10.91%、18.26%、17.05%;대대장간균BBF적억제솔분별위32。99%、36.13%、49.79%、17.05%。유차가견,대황소대금황색포도구균BBF적억제작용교강,육계산대대장간균BBF적억제작용교강。
The effects of einnamic acid, phillyrin, emodin and sulfite andrographolide on bacterial biofilm (BBF) formation were studied by BBF model of Escherichia coli and Staphylococcus aureus. When bacteria formed into BBF at 37 ℃ after 24 hours, samples were added and then cultured for 24 hours. The absorbanee was measured to examine the impact of monomers on BBF after crystal violet staining. Results showed that the inhibition rates of emodin, phillyrin, cinnamic acid and sulfite andrographolide against BBF of Staphylococcus aureus under the concentration of 1.000 mg/mL were 67.26%, 10.91%, 18.26% and 17.05%, respectively, and the inhibition rates against BBF of Escherichia coli were 32.99%, 36.13%, 49.79% and 17.05%, respectively. Emodin had stronger inhibition to BBF of Staphylococcus aureus, while cinnamic acid had stronger inhibition to BBF of Escherichia coll.