FUNDAMENTALS OF DAIRY CHEMISTRY THIRD EDITION Editor Noble P. Wong A g r i c u 1 t u r a 1 Research Service U.S. Department of Agriculture Associate Editors Robert Jenness formerly Department of Biochemistry University of Minnesota Mark Keeney Department of Chemistry and Biochemistry University of Maryland Elmer H. Marth Department of Food Science University of Wisconsin A Chapman & Hall Food Science Book An Aspen Publication@ Aspen Publishers, Inc. Gaithersburg, Maryland 1999