ABSTRACT

Differential scanning calorimetry (DSC) is a thermal

analysis technique that has found many useful appli-

cations in both pharmaceutical and food research. The

technique is used extensively in the engineering of

materials and in testing the quality and purity of

materials. Some examples of materials studied by DSC

include, metals, waxes, soaps, greases, and lubricants.

DSC is used to study, amongst other things, the

resistance of these materials to environmental stresses

and to determine their tolerances to extremes of

temperature. In the field of food research, DSC has

found useful application in the study of the physical

and chemical properties of fats, carbohydrates, and

proteins. The technique provides an effective tool for

monitoring both the thermodynamic and kinetic

properties of these food components in a variety of

matrices. Most foods are subjected to some form of

thermal treatment during harvesting, processing, and

preparation (e.g., steaming, roasting, pasteurization,

sterilization, refrigeration, and freezing). These treat-

ments often result in changes in the functional and

physicochemical properties of the food which can have

a significant impact on the quality of the finished

product (1). Monitoring the effect of these processing treatments

becomes important, both for product development

and for quality control. DSC can be used to simulate

many heat-processing conditions encountered in food