摘要
研究磁场作用对固定化紫色非硫光合细菌（ＰＳＢ）脱氢酶活力的影响，选出可产生最佳磁生物效应的磁场值，并证明磁场作用有一定累积效应，实验结果表明在最佳磁场作用下，最适温度为３０－４０℃，最适ｐＨ值为８，脱氢酶活力可提高３０％左右，，有良好热稳定性和ｐＨ稳定性。在４℃冰箱保存４５至２１０ｄ，磁场对脱氢酶活力影响基本稳定，可保持提高２０％。磁场对菌液中加某些金属离子（Ｆｅ￣（２＋）、Ｍｎ￣（２＋）Ｚｎ￣（２＋）也表现出良好磁生物效应，如加Ｆｅ￣（２＋）可提高脱氢酶活力４０％左右。
Effect of magnetic fiele to dehydrogenase activity was studied by immoblized cell of purple nonsulfur photosynthetic and chose magnetic field value of optimum magnetic biologi-cal effect. The results showed that the optimum temperature for dehydrogenase is 37℃ andoptimum pH of dehydrogenase is 7-9 under condition of optimum magnetic field.The de-hydrogenase activity improved 30%and were thermal and pH stableness the effect of mag-netic field on PSB dehydrogenase activity remained constnat after 45-210 days of storage at4℃. The dehydrogenase activity improved 20%,The magnetic field appeared beneficial ef-fect of biology when some metal ions (Fe(2+), Zn￣(2+))were added to the bacteria liquid.Thedehyrogenase activity improved 40%for add Fe￣(2+).
出处
《环境科学学报》
CAS
CSSCI
CSCD
北大核心
1995年第3期342-346,共5页
Acta Scientiae Circumstantiae
基金
山西省"八五"攻关资助项目
关键词
磁场
磁生物效应
固定化细胞
脱氢酶
PSB
magnetic field,magnetic biological effect,purple nonsulfur photosynthetic bacteria immobilized cell,dehydrogenase.
