摘要
目的:测定几种常见菜籽中钙的含量及溶出度。方法:采用仿生提取-原子吸收分光光度法(BE-AAS法)测定菜籽中钙的含量并计算其溶出度。结果:萝卜籽的含钙量较高;黑南瓜籽和葫芦籽粉的溶出度是黄瓜籽粉和苦瓜籽粉的两倍。钙在3～21μg/mL范围内线性关系良好,相关系数为0.9997,平均回收率为103.58%,RSD为1.27%。结论:BE-AAS法可准确测定菜籽中钙的含量及溶出度,菜籽粉可作为钙源。
Bionic extraction followed by atomic absorption spectrometry （BE-AAS） was used to determine the content and dissolution rate of calcium in rapeseed.Turnip seeds contained higher calcium content than the seeds of cucumber,bitter gourd,Perilla,black sesame,black pumpkin,grape,Cucurbitaceae and white gourd.The dissolution rates of black pumpkin and Cucurbitaceae seeds were almost 2 times higher than those of cucumber and bitter gourd seeds.The method exhibited good linearity over the concentration range from 3 to 21μg/mL,with a correlation coefficient of 0.9997.The average recovery for calcium was 103.58%,with a RSD of 1.27%.This method can allow accurate determination of the content of dissolution rate of calcium plant seeds.The seeds of the plants tested are abundant in calcium.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2010年第14期272-274,共3页
Food Science
