期刊论文

Analysis of Honey Adulterated with Glucose Solution Near Infrared Spectroscopy

中文

食品研究与开发

1005-6521

2011

32

5

114-119

10.3969/j.issn.1005-6521.2011.05.034

国家“十一五”科技支撑计划项目（2009BADB9B07）；

本校为第一机构

为实现蜂蜜用葡萄糖溶液掺假的快速检测,利用近红外光谱技术（NIRS）对真假蜂蜜样本进行了研究。121个真蜂蜜样本中取8个分别按5%、10%、15%、20%、25%、30%、35%、45%、55%和65%的质量比掺假,共得80个掺假样本。不同光谱预处理方法的模型结果表明最佳预处理方法为自归一化加一阶微分（真假判别）和中心化加一阶微分（掺假量分析）。利用CARS（Competitive adaptive reweighted sampling）法筛选变量,PLS-LDA模型对真假蜂蜜的判别准确率为100%,PLS模型对掺假量定量分析的交互验证均方差为3.137 7,预测均方差为2.980 0。结果表明NIRS能实现蜂蜜用葡萄糖掺假的检测。

Near infrared spectroscopy（NIRS） was used to detect honey adulteration by addition of glucose solution.8 of 121 authentic honey samples were adulterated with glucose solution at ten levels i.e.5 %,10 %,15 %,20 %,25 %,30 %,35 %,45 %,55 % and 65 % weight ratio,thus producing 80 adulterated honeys.By comparison of different methods of pretreating spectra,the best method for discrimination was autoscaling combining first derivative,while for quantitative analysis of adulteration level being center combining first derivative.CARS（Competitive adap...