驼初乳中钾、钙、钠、镁、铜、铁、锌质量浓度的检测  

Detection of potassium,calcium,sodium,magnesium,copper,iron,zinc concentration in Xinjiang Bactrian milk Camel colostrum

作　　者：苏薇[1] 杨洁[1] 

机构地区：[1]新疆大学生命科学与技术学院,乌鲁木齐830046

出　　处：《中国乳品工业》2011年第8期50-53,共4页China Dairy Industry

基　　金：新疆维吾尔自治区自然科学基金(2010211A04);新疆维吾尔自治区科技计划项目(201191255)

摘　　要：为研究新疆双峰驼驼初乳中钾、钙、钠、镁、铜、铁、锌的质量浓度及其在泌乳期内的变化．采用火焰原子吸收分光光度法进行测定，回收率为92．45％－110．85％之间，相对标准偏差小于5％，说明该法具有良好的准确性和精密度。结果表明。新疆双峰驼驼初乳中钾的质量浓度最为丰富高，其次为钠、钙和镁：检测发现驼初乳中铜、铁、锌质量浓度未达到仪器最佳工作条件下的最低检出限。在泌乳期1—6d内，钙元素和镁元素质量浓度的变化有相关性，差异显著；钠元素和钙元素质量浓度的变化与泌乳天数有相关性，差异显著；钙元素质量浓度的变化与泌乳天数有相关性，差异极显著。与牛乳相比，新疆双峰驼驼初乳中含有相对较高质量浓度的钾、钙、钠、镁的质量浓度较高，饮用驼初乳可作为补充人体所需钾、钙、钠、镁元素的一种有效途径。The content of potassium,calcium,sodium, magnesium,copper,iron,zinc in Xinjiang Bactrian camel colostrum changes in the lactation period. By flame atomic absorption spectrometry were determined,recovery was between 92.45%-110.85%, the relative standard deviation less than 5%, it showed that the method has good accuracy and precision. The concentrantion of potassium was highest in Xinjiang Bactrian camel colostrum, followed by sodium,calcium and magnesium. The concentrantion of Ccopper, iron, zinc content in camel milk does did not meet the minimum detection limit of the instrument. In lactation 1-6 days,calcium and magnesium concentration changes was relevant,significant difference. The concentration changes of sodium,calcium and days of lactation was relevant,significant difference. Compared with bovine milk, the concentration of potassium,calcium,sodium, magnesium are higher in Xinjiang Bactrian camel colostrum. Drinking camel milk is an effective way as a supplement of potassium, calcium,sodium,magnesium elements needed by human body.

关 键 词：驼初乳 湿式消解法 火焰原子吸收分光光度法 

分 类 号：TS252.7[轻工技术与工程—农产品加工及贮藏工程]