3.2. Milk fortification with zinc
3.2.1. Effect of lactose–zinc complex fortification on sensory acceptability of milk
Above 30 mg/L level of zinc addition in the form of lactose–zinc complex resulted in noticeable changes in taste, mouth feel and total scores. Therefore, the fortification levels were restricted to 30 mg/L. It is evident from Table 2 that milk fortified with zinc salt possessed significantly lower (P < 0.05) scores in terms of sensory aspects such as odour, taste, mouthfeel and total scores compared to control milk from 3rd day of storage period. Whereas, milk fortified with lactose–zinc complex showed non-significant differences in terms of all sensory aspects except colour and appearance compared to control milk throughout the sensory period (from 0 to 7th day). From these results it could be concluded that the sensory aspects of milk fortified with lactose–zinc complex were almost comparable to control milk up to 7 days.