摘要
近红外 (NIR)技术作为一种分析方法在食品工业、医药、化学、烟草等领域得到了广泛应用 ,为这些行业的品质管理作出了较大贡献。NIR系产品满足了小麦贸易对蛋白质含量快速测定及面粉加工在线检测的需要。通过对NIR测定结果分析发现 ,NIR在开机预热 5 0min后进入稳定工作状态 ;水分变化对蛋白质含量测定结果影响最大 ,样品含水量与颗粒度、硬度、灰分含量呈显著负相关 ;
The near-infrared reflectance method(NIR) has been widely used in food industry and the processing enterprises of medicine, chemistry and tobacco, and it has made a great contribution for quality control in these fields. The NIR analyzer can meet the demands of quick testing the protein content of wheat and on-line testing the flour in the milling process. Through analysing, the results showed that the NIR analyzer could work in stable condition after turning on for 50 minutes. The changes of moisture content in the samples would have the greatest influences on the testing results of protein content. There was a notably negative correlation between the moisture content and granular size, hardness and ash content. However the granular size of flour would have a greater influence on the testing results.
出处
《粮食与饲料工业》
CAS
2001年第6期46-47,共2页
Cereal & Feed Industry
