SALTS OF MILK Table 5.1 C ation of milk salt constituents(mg litre milk(from various sources) Usual range Extremes reported 500 350-60 110-1150 1350-1550 1150-2000 Calcium 1000-1400 650-2650 100150 750-1100 800-1400 540-2420 Sulphate Carbonate (as cO 1750 Total phosphorus incle idal inorganic phosphate, casein(organic) phosphate, soluble sphate and phospholipid bPhosphorus (inorganic)includes colloidal inorganic phosphate and soluble inorganic phos- Table 5. 2 Mineral composition (mg or ug-)of mature human or bovine milks (from Flynn and Power. 1985) Mature human milk Cows'milk Constituent Mean Range odium(mg) Potassium (mg) 350-550 Calcium (mg) 350 320-360 1200 1100-1300 Magnesium(mg) 26-30 Iron (ug) Zinc (ug) 2060 Copper (g lodine (ug) 70 20-120 Fluoride (ug) 21-155 30-220 Cobalt(ug) 05-1.3 6-100 Nickel (ug) 0-50 150-1200 750-7000 Vanadium (ag) Tin (ug) 0-500 45 Tr. traceSALTS OF MILK 24 1 Table 5.1 Concentration of milk salt constituents (mg litre-' milk (from various sources) Constituent Average content Usual range Extremes reported Sodium 500 350-600 1 10- 1 150 Potassium 1450 1350-1550 11 50-2000 Calcium 1200 1000-1400 650-2650 Magnesium 130 100-150 20-230 Phosphorus (total)" 950 750-1100 470- 1440 Chloride 1000 800-1400 540-2420 Phosphorus (inorganic)b 750 Sulphate 100 Carbonate (as CO,) 200 Citrate (as citric acid) 1750 "Total phosphorus includes colloidal inorganic phosphate, casein (organic) phosphate, soluble inorganic phosphate, ester phosphate and phospholipids. bPhosphorus (inorganic) includes colloidal inorganic phosphate and soluble inorganic phos￾phate. Table 5.2 Mineral composition (mg or pgl-') of mature human or bovine milks (from Flynn and Power, 1985) Mature human milk Cows' milk Constituent Mean Range Mean Range Sodium (mg) Potassium (mg) Chloride (mg) Calcium (mg) Magnesium (mg) Phosphorus (mg) Iron (pg) Zinc (pg) Copper (pg) Manganese (pg) Iodine (pg) Fluoride (pg) Selenium (pg) Cobalt (pg) Chromium (pg) Molybdenum (pg) Nickel (pg) Silicon (pg) Vanadium (pg) Arsenic (pg) Tin (Peg) 150 600 430 350 28 145 760 2950 390 12 70 77 14 12 40 8 25 700 7 50 - 110-200 570-620 350-550 320-360 26-30 140-150 620-930 2600-3300 370-430 7-15 20- 120 21-155 8-19 1-27 6-100 4-16 8-85 150- 1200 Tr-15 - - 500 1500 950 1200 120 950 500 3500 200 30 260 - - 1 10 73 25 2600 170 45 - 350-900 1100-1700 900- 1100 1100- 13OO 90-140 900-1000 300-600 2000-6000 100-600 20-50 - 30-220 5-67 0.5-1.3 8-13 18-120 0-50 750-7000 Tr-310 40-500 20-60 Tr. Trace