Study on Rapid Non-Destructive Detection of the Freshness of Paddy Based on NIRS

被引：3
|
作者：
Li Juan [1 ,2 ]
Li Zhong-hai [1 ,2 ]
Fu Xiang-jin [1 ,2 ]
机构：
[1] Cent S Univ Forestry & Technol, Hunan Prov Key Lab Deeply Proc & Qual Control Cer, Changsha 410004, Hunan, Peoples R China
[2] Cent S Univ Forestry & Technol, Coll Food Sci & Engn, Changsha 410004, Hunan, Peoples R China
来源：
SPECTROSCOPY AND SPECTRAL ANALYSIS | 2012年 / 32卷 / 08期
关键词：
Paddy; Storage time; NIRS; PLS;
D O I：
10.3964/j.issn.1000-0593(2012)08-2126-05
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
A prediction model of paddy storage time was established based on near infrared reflectance(NIRS)and chemometrics. A spectroradiometer was used for collecting spectra in the wavelength range from 950 to 1 650 nm. The NIR spectra were collected from 90 samples of paddy. The best pretreatment method was obtained while choosing the total spectra area combined with PLS using the UNSCRAMBLER 9. 7. The best pretreatment method is first derivative combined with S. Golay, and the number of principal components is 7. The model is feasible, because the r(2) is 0. 967 9, RMSEP is 54. 51 and the result of T-test is passable while validation method is cross validation. In this paper, a feasible method is established to measure the storage time of paddy based on near infrared reflectance(NIRS)and chemometrics.
引用
收藏
页码：2126 / 2130
页数：5
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