| 刘欣1，马金爽1，张晓青1，王潇哲1，陈园园1，王林祥1，刘红1，2*，韩长日3.基于近红外技术快速检测青金桔果粉中β-胡萝卜素含量[J].海南师范大学学报自科版,2018,31(3):264-269 |
| 基于近红外技术快速检测青金桔果粉中β-胡萝卜素含量 |
| Rapid Determination of β - carotene in Green Kumquat Fruit Powder Based on Near - infrared Spectroscopy |
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| DOI：10.12051/j.issn.1674-4942.2018.03.004 |
| 中文关键词: 青金桔果粉 β-胡萝卜素 近红外光谱 快速检测 |
| 英文关键词: Green kumquat powder β - carotene near - infrared spectroscopy rapid detection |
| 基金项目:海口市应用技术研究与开发项目（2016013）；海南省社会发展专项（2015SF11）；国家大学生创新项目计划（201611658043）；海南师范大学创新项目计划（cxcyxj2017009）；海南师范大学研究生科研创新项目（Hsyx2017-13） |
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| 摘要点击次数: 622 |
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| 中文摘要: |
| 以青金桔原粉为研究对象，采集不同时间热处理的青金桔果粉近红外光谱（900～1700
nm）信息，经不同预处理，运用偏最小二乘回归（partial least square regression，PLS）法建立β-胡萝卜
素含量的预测模型，实现靑金桔果粉中β-胡萝卜素含量的快速无损检测。试验结果显示，经标准
正态变换（standard normal variate，SNV）预处理在1300～1700 nm 范围内光谱信息构建的PLS 模型，
预测效果较好，模型均方根误差（RMSEC）、交叉验证均方根误差（RMSECV）、预测均方根误差（RM⁃
SEP）分别为0.08、0.14 和0.05，校正集决定系数（R2
c ）、交叉验证集决定系数（R2
cv）和预测集决定系
数（R2
p ) 分别为0.95、0.87 和0.95。由此表明，利用近红外光谱技术可潜在实现对青金桔果粉中β-
桔胡萝卜素含量的快速检测。 |
| 英文摘要: |
| In this study, the original green kumquat powder was used as research object, and the spectral information of⁃
heat - treated kumquat fruit powder at different times were collected by the near infrared(900~1700 nm)system. After dif⁃
ferent spectral pretreatment, a partial least square(PLS)regression model was established to achieve the rapid and non - de⁃
structive detection of β - carotene content in kumquat fruit powder. The results showed that the PLS model established with
standard normal variate pretreated spectra in the range of 1300~1700 nm had better performance in the prediction of β - car⁃
otene content, leading to the root mean square error in calibration(RMSEC) , cross - validation(RMSECV) , prediction(RM⁃SEP)of 0.08, 0.14, 0.05, respectively, and the coefficient of determination in calibration( R c 2 ) , cross - validation( R cv
) ,
prediction( R p 2 )of 0.95, 0.87, 0.95, respectively. It is concluded that near - infrared spectroscopy combined with PLS could
be potentially applied for the rapid detection of β - carotene content in kumquat fruit powder. |
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