Biological chemistry is the part of chemistry which deals with various chemicals exert bacteriostatic and bactericidal action. It attempts to convey various concepts of biological chemistry with different methods and researchers references. This book is applicable for Research students of Ph.D / Project of Pharma / Biotechnology / M.Sc / B.Sc and all biochemical, microbiological, biomedical, scientific courses of graduates and post graduate students. It covers up the recent need of biological chemistry for Ph.D science research students, industrial antimicrobial and biological worker, medical, biochemical and bioengineering courses as per requirement of Indian, various other universities and pharma industry. This book explains the biological chemistry with three chapters, focuses on introduction, method and different method of biological antimicrobial studies with various references. This book also use as a reference book for different branches of science, biochemistry, pharmacology and bioengineering project in clear and easy language.