ABSTRACT

Introduction ........................................................................................................ 309

Thermal Characterization of the Systems by Differential Scanning

Calorimetry..................................................................................................... 313

Glass Transition Temperatures in Frozen Gelatinized Systems ......... 314

Starch Systems Without Sucrose ............................................................. 314

Starch Systems Containing Sucrose ........................................................ 316

Amylopectin Retrogradation.................................................................... 317

Effect of Freezing Rate and Frozen Storage on the Dynamic

Rheological Behavior .................................................................................... 318

Conclusions......................................................................................................... 321

Acknowledgments ............................................................................................. 322

References ........................................................................................................... 322

Freezing is recognized as one of the best methods of preserving food quality.

Low temperatures inhibit the growth of deteriorative and pathogenic micro-

organisms, and retard biochemical and enzymatic reactions that would

otherwise occur in unfrozen food. Although the physico-chemical reactions

slow down at low temperatures, they will nevertheless continue during

frozen storage conditions.