CAJ | 학술논문

以实验室保藏的抗镉淡紫拟青霉菌（ Paecilomyces lilacinus） LLC4为出发菌株，研究培养温度，初始pH，不同Cd2＋浓度对其生长的影响以及不同Cd2＋浓度对其生长中pH及吸附率的影响。研究结果表明，菌株LLC4最适培养温度和初始pH分别为28℃和8；低浓度Cd2＋对菌株LLC4的生长有一定的促进作用，当初始培养Cd2＋浓度为10 mmol／L时，其有较好生长量；随培养液中Cd2＋浓度增加，菌株LLC4在培养过程pH变化范围变小；菌株LLC4对Cd2＋的吸附率随Cd2＋浓度的增加而降低，在初始Cd2＋浓度为5 mmol／L时，培养48 h后对Cd2＋的吸附率最大，达65．17％。
이실험실보장적항력담자의청매균（ Paecilomyces lilacinus） LLC4위출발균주，연구배양온도，초시pH，불동Cd2＋농도대기생장적영향이급불동Cd2＋농도대기생장중pH급흡부솔적영향。연구결과표명，균주LLC4최괄배양온도화초시pH분별위28℃화8；저농도Cd2＋대균주LLC4적생장유일정적촉진작용，당초시배양Cd2＋농도위10 mmol／L시，기유교호생장량；수배양액중Cd2＋농도증가，균주LLC4재배양과정pH변화범위변소；균주LLC4대Cd2＋적흡부솔수Cd2＋농도적증가이강저，재초시Cd2＋농도위5 mmol／L시，배양48 h후대Cd2＋적흡부솔최대，체65．17％。
The study takes the Paecilomyces lilacinus LLC4 preserved in the laboratory was as the starting strain.The influence of culture tempreture ,pH and different concentrations of Cd 2+on the growth of strain LLC4 are studied.The influence of different concentrations of Cd 2+on pH and adsorption rate of culturing strain LLC 4 are tested too.The research results show that the optimum culture temperature is 28 ℃and the optimum culture pH is 8.The strain LLC4 grous better with low concentration Cd 2+of the medium.The best growth quantity will be got when the initial concentration of Cd 2+is 10 mmol/L.The pH variation range is narrower with the increase of Cd 2+concentration of medium .The adsorption rate of Cd 2+decreases with the increase of Cd 2+concentration.When the initial concentration of Cd2+is 5 mmol/L,the maximal Cd2+adsorption rate by the strain LLC4 reaches 65.17%af-ter culturing 48 h.