478 INDEX
Whey protein concentrate, 187, 337
Whey protein isolate, 187, 225
Xanthine oxidase, 94, 97, 98, 102, 115, 118,
128, 131, 133, 318, 319, 330, 332, 341
activity in milk, 329
effect of homogenization on activity, 329
isolation, 329
possible role in atherosclerosis, 330
role in lipid oxidation, 329
Xerophilic yeasts, 315
Yakult, 428
Yield stress, 456
Ymer, 428
Yoghurt, 59,428,429, 431
8-lactoglobulin denaturation in, 429
flavouring, 429
fruit essence, 429
fruit pulp, 429