食品工业科技2017，Vol.38Issue(20)：280-283,287,5.DOI:10.13386/j.issn1002-0306.2017.20.050
可见/近红外光谱技术无损检测新鲜鸡蛋pH及蛋白质的研究
Vis/NIR spectroscopy nondestructive examination of fresh eggs pH and protein detection
摘要
Abstract
In this paper,pH and protein of fresh eggs were detected by visible/near infrared spectroscopy technology.The diffuse reflectance spectra of fresh eggs in 400～ 1000 nm and 900～ 1700 nm were collected respectively.The optimal pretreatment method was selected by spectral preprocessing techniques such as multiple scattering correction (MSC) and standard normal variable transform(SNV).Partial least squares(PLS) was used to establish pH-protein and protein model then evaluated it.The results showed that the pH model based on the spectral range of 900～1700 nm was better,the correlation coefficient of the calibration set was 0.948,the correlation coefficient was 0.855.The protein model based on the spectral range of 400～ 1000 nm was better,the correlation coefficient of the calibration set was 0.927,and the correlation coefficient of the prediction set was 0.906.The research showed that visible/near infrared spectroscopy could rightly predict the pH and protein of fresh eggs,and it could provide new ideas and methods for rapid nondestructive testing of nutrient components.关键词
pH/蛋白质/可见/近红外光谱/数学模型Key words
pH/protein/visible/near-infrared spectroscopy/mathematical modeling分类
轻工纺织引用本文复制引用
李海峰,房萌萌..可见/近红外光谱技术无损检测新鲜鸡蛋pH及蛋白质的研究[J].食品工业科技,2017,38(20):280-283,287,5.基金项目
宁夏自然基金(ZR14019). （ZR14019）
