Materials
Lactoferrin was a gift from Tatua Co-operative Dairy Company
Limited, New Zealand. The powder contained 1.1% moisture and
99.7% protein, of which 92% was lactoferrin. Whey protein isolate
895 (WPI) and sodium caseinate were purchased from Fonterra
Ltd, Auckland, New Zealand. Soya oil was purchased from Davis
Trading Company, Palmerston North, New Zealand. All the chemicals
used were of analytical grade and were obtained from either
BDH Chemicals (BDH Ltd., Poole, England) or Sigma Chemical Co.
(St. Louis, MO, USA) unless specified otherwise.