摘要
将原料乳蛋白质含量测定技术和酸度测定技术试剂盒化。采用甲醛滴定法测定原料乳蛋白质含量、酸碱滴定法测定原料乳酸度,确定试剂盒的组分,并对试剂盒的符合率、重复性、稳定性等进行研究。该试剂盒由4种试剂组成,与凯氏定氮法和酸碱滴定法的符合率为100%,重复性良好,密封干燥处保存540d各项性能仍然很好。该试剂盒既可同时检测各种原料乳蛋白质含量和酸度,也可检测各种消毒乳和酸牛乳的蛋白质含量。
In this study,an integrative array kit for rapid simultaneous determination of protein content and acidity in raw milk was developed based on formaldehyde titration and acid-base titration.The kit was composed of 4 regents.The results obtained with it,highly stable,were completely consistent with those obtained by the Kjeldahl method and acidbase titration.After 540 d of sealed dry storage,its performance remained good.This kit may be also available for the determination of protein content in sterilized milk and yogurt.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2012年第20期343-346,共4页
Food Science
关键词
原料乳
蛋白质含量
酸度
快检
试剂盒
raw milk
protein content
acidity
rapid determination
kit