摘要
用微量热法研究了对大肠杆菌、产气杆菌、枯草杆菌、黑根霉菌4种菌作用的产热曲线，计算了微生物的生长速率常数k，比较了Na2SeO3对4种微生物作用的半抑制浓度IC50，发现Na2SeO3浓度低于10mg／L时，对微生物生长有促进作用，高于此浓度时有抑制作用，对不同微生物生长代谢的抑制情况不同，反映了微生物之间的差异和硒对细胞作用热动力学特征的不同．
The thermochemical characteristics of the inhibiting action of Na2SeO3 on thegrowth metabolism of four microbes: Escherichia coli, Bacillus subtilis, Aerobacter aerogenesand Rhizopus nigricans has been studied by microcalorimetry. It was found that Na2SeO3 ofconcentration less than 10 mg/L had promoting action on the growth of the cells, and that ofmore than this concentration had inhibiting action, which, in addition, varies with the kindsof the microbes.
出处
《应用化学》
CAS
CSCD
北大核心
1998年第1期29-32,共4页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金
高等学校博士点专项基金
