Analysis of Biological Materials:

DTA has been widely used in the determination of thermal characteristics of bio- organic molecules, the major constituent of body of living being. The bio materials are having heterogenity as a significant feature. This defines it as multicomponent, molecular non homogenous materials, in which elements exist as continuous, separate and inter mixed structures. Biological systems present complexity even in static state and then difficulty in obtaining meaningful results and establishing correlation between thermal characteristics and other physical chemical properties. Therefore, the investigations carried out under variable experimental condition denote that DTA curve should be of value as 'fingerprint' of biological materials. The thermal features of a number of biological materials like as fresh biological materials and decomposed materials determined under different atmospheric condition have been studied.