浙江大学学报（理学版）
浙江大學學報（理學版）
절강대학학보（이학판）
JOURNAL OF ZHEJIANG UNIVERSITY
2010年
2期
201-203,209
,共4页
微量热法%产热曲线%生长常数%刺激%抑制
微量熱法%產熱麯線%生長常數%刺激%抑製
미량열법%산열곡선%생장상수%자격%억제
microcalorimetry%thermogenic curves,growth rate constant%promote%inhibit
用微量热法研究Pr~(3+)离子对大肠杆茵的生物化学效应.从生成的热谱图分析可以看出,低剂量的稀土离子Pr~(3+)的存在可以缩短细菌的停滞期,增加生长速率常数和最大放热功率,刺激大肠杆菌的生长.相反,较高剂量的Pr~(3+)延长了细茵的停滞期,减小了生长速率常数和最大放热功率,抑制了大肠杆菌的生长.
用微量熱法研究Pr~(3+)離子對大腸桿茵的生物化學效應.從生成的熱譜圖分析可以看齣,低劑量的稀土離子Pr~(3+)的存在可以縮短細菌的停滯期,增加生長速率常數和最大放熱功率,刺激大腸桿菌的生長.相反,較高劑量的Pr~(3+)延長瞭細茵的停滯期,減小瞭生長速率常數和最大放熱功率,抑製瞭大腸桿菌的生長.
용미량열법연구Pr~(3+)리자대대장간인적생물화학효응.종생성적열보도분석가이간출,저제량적희토리자Pr~(3+)적존재가이축단세균적정체기,증가생장속솔상수화최대방열공솔,자격대장간균적생장.상반,교고제량적Pr~(3+)연장료세인적정체기,감소료생장속솔상수화최대방열공솔,억제료대장간균적생장.
The biochemical effect of Pr~(3+) on E.coli was studied by microcalorimetry.According to the analysis of thermogenic curves,shortened lag phase of bacteria growth,increased growth rate constant and maximum heat power were observed in the presence of Pr~(3+) in low concentration and the results indicated that the growth of E.coli was promoted.On the other hand,Pr~(3+) in higher concentration can cause prolonged lag phase,a decrease in the maximum heat power and growth rate constant.The results suggest the growth of E.coli was inhibited in the presence of Pr~(3+) in high concentration.
