Ns. Joshi et Pn. Thakar, METHODS TO EVALUATE DETERIORATION OF MILK-FAT - A CRITICAL-APPRAISAL, Journal of Food Science and Technology, 31(3), 1994, pp. 181-196
Various methods to assess lipolytic as well as oxidative degradation o
f milk fat are discussed. For the determination of free fatty acids, e
xtraction titration method, Bureau of Dairy Industry method and autoan
alyzer give better results of lipolysis. Among various methods to eval
uate oxidative rancidity of milk fat, determinations of peroxide value
(by both iodometric and ferric thiocyanate methods) and carbonyl cont
ent are more useful.