食品工业科技2017，Vol.38Issue(18)：247-251,257,6.DOI:10.13386/j.issn1002-0306.2017.18.047
基于近红外光谱技术快速测定口服液中多糖的研究
The rapid determination of polysaccharides in oral liquid based on near infrared reflectance spectroscopy technique
鲁亮 1李晶晶 2周昭露 2田淑华 3黄生权 1黄延盛1
作者信息
- 1. 无限极(中国)有限公司,广东广州510623
- 2. 华南理工大学化学与化工学院,广东广州510641
- 3. 晶格码(青岛)智能科技有限公司,山东青岛266109
- 折叠
摘要
Abstract
Near infrared reflectance spectroscopy technique was employed to measure the polysaccharides of Chinese herb extracts rapidly.The experiment had measured the content of polysaccharides in the 102 groups of the oral liquid of Chinese herb extracts,adopts the partial least squares method combined with the polysaccharides chemical reference values,and establishes the optimal model of measuring the polysaccharides of the oral liquid by the near infrared reflectance spectroscopy technique,which was obtained by comparing method and derivative of different preprocessing and the size,waveband and variable selection way of the smooth window on the predictive ability of the above model:the pre-processing method of spectrum wasthe combination of the first derivative and smooth process,and their moving window widths were 5 and 9 respectively.The chosen wavebands contained 5079.58～5152.86,6159.52～6232.80,6545.21 ～6695.63,7470.88～7544.16 and 8705.09～8778.38 cm-1 in the sum of 120 variables.The root-mean-square error of the model cross validation was 15.4823,and the root-mean-square error of the model prediction was 16.2807.The results showed that the method for rapidly measuring the polysaccharides in oral liquid based on the combination of the near infrared reflectance spectroscopy technique and chemometrics method was of certain feasibility.关键词
近红外/光谱预处理/移动窗口/波段选择/变量选择Key words
NIR/pretreatment/moving window/feature bands selection/variable selection分类
轻工纺织引用本文复制引用
鲁亮,李晶晶,周昭露,田淑华,黄生权,黄延盛..基于近红外光谱技术快速测定口服液中多糖的研究[J].食品工业科技,2017,38(18):247-251,257,6.
