摘要
用滤纸片法测定不同浓度、不同pH值番茄碱溶液对鱼害粘球菌、荧光假单胞茵、嗜水气单胞茵和水霉的抑菌活性，结果显示，pH6．5－7．0番茄碱溶液对鱼害粘球菌的抑菌活性较强，质量浓度对其影响不明显；pH6．5～7．7条件下不同浓度番茄碱溶液对荧光假单胞菌的抑菌活性均弱；pH7．0番茄碱溶液对嗜水气单胞菌的抑菌活性较强，质量浓度对其影响较小；pH6．5～7．0番茄碱溶液对水霉的抑菌活性很强，与质量浓度呈正相关性，说明番茄碱是一种很好的抵抗水产养殖中水霉菌的天然活性物质。
The antibacterial activities of tomatine to Myxococcu spiscola sp.nov, Pseu- domonas fluorescens, Aeromonas hydrophila and Saprolegnia are studied in this paper.The results are as follows： the antibacterial activity oftomatine in these conditions pH=（6.5 -7.0） is strong to Myxococcu spiscola sp.nov and isn＇t affected by the concentration, the antibacterial activity is weak to Pseudomonas fluorescens in these conditions pH= （6.5 - 7.7）and concentration （0.05mg/mL-1.0mg/mL, the antibacterial activity is strong to Aeromonas hydrophila in the condition pH=7.0 and incorrelate with the concentration, but the antibacterial activity is stronger to Saprolegnia than these three bacteria in these conditions pH= （6.5 - 7.0） and positively correlated with concentration. In conclusion, tomatine is a good type of natural active substance which can inhibit Saprolegnia effectively in aquaclture.
出处
《广西水产科技》
2013年第1期2-6,共5页
Fisheries Science & Technology of Guangxi
关键词
番茄碱
抑菌活性
研究
tomatine
antibacterial activity
research
