Wong N P, LaCroix D E, McDonough F E
J Dairy Sci. 1978 Dec;61(12):1700-3. doi: 10.3168/jds.S0022-0302(78)83790-4.
Liquid and dried acid and sweet wheys and the concentrates and permeates obtained from ultrafiltration of whey were analyzed for major and trace minerals. Calcium, magnesium, sodium, and potassium were determined by atomic absorption and phosphorus by a colorimetric method. Zinc, iron, copper, and manganese were determined by flameless atomic absorption. The composition of all wheys and their fractions differed in nutritionally important minerals. Calcium was three times as great and zinc twenty times as great in acid whey as in sweet whey.
对液态和干燥的酸乳清与甜乳清以及从乳清超滤获得的浓缩物和渗透物进行了主要和微量元素分析。采用原子吸收法测定钙、镁、钠和钾，采用比色法测定磷。采用无火焰原子吸收法测定锌、铁、铜和锰。所有乳清及其组分在营养重要矿物质的组成上存在差异。酸乳清中的钙含量是甜乳清中的三倍，锌含量是甜乳清中的二十倍。
