Abstract
The effectiveness of tricalcium phosphate in removing Sr-85 from milk and the effects of the procedure on milk composition were studied. The phosphate was added to milk at the rate of 80g per liter and the resulting precipitate, containing Sr-85, was removed by centrifugation.Heating milk to 70C for 30min, immediately following addition of phosphate, resulted in removal of 85% of the Sr-85.When the pH of milk was adjusted to 5.4 with H3PO4, then to 8.2 with KOH before adding phosphate, 90% removal of Sr-85 was obtained by heating to 70C for only 3min. When phosphated milk (pH 6.6) was stirred at 5C for 24 hr, only 60% of the Sr-85 was removed.All procedures utilizing calcium phosphate precipitation reduced the milk nitrogen from 23 to 38%. Usually, more than 45% of the milk calcium, in addition to the added phosphate calcium, was precipitated. Also, a decrease in milk phosphorus occurred in some instances.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
