This book presents current research in the fields of biochemistry and biotechnology. Topics discussed include information about the production of thermostable DNA polymerase suitable for whole-blood polymerase chain reaction; isolation, purification and some properties of L-Lysine a-Oxidase from Trichoderm? sp. 6; production of nitric oxide by endothelial cells infected with herpes simplex virus type 1; optimization of the process of cultivation of recombinant Escherichia coli TBI protein producing strain; development of HRP-functionalized carbon-coated iron nanoparticales using arenediazonium tosilates; experimental approach to the induction of nonculturable state of Lactococcus lactis and callus culture technology of spring soft wheat stress tolerant varieties.