PMID- 27211665
OWN - NLM
STAT- MEDLINE
DCOM- 20170210
LR  - 20181202
IS  - 1873-7072 (Electronic)
IS  - 0308-8146 (Linking)
VI  - 210
DP  - 2016 Nov 1
TI  - Application of terahertz spectroscopy imaging for discrimination of transgenic 
      rice seeds with chemometrics.
PG  - 415-21
LID - S0308-8146(16)30645-8 [pii]
LID - 10.1016/j.foodchem.2016.04.117 [doi]
AB  - Discrimination of genetically modified organisms is increasingly demanded by 
      legislation and consumers worldwide. The feasibility of a non-destructive 
      discrimination of transgenic rice seeds from its non-transgenic counterparts was 
      examined by terahertz spectroscopy imaging system combined with chemometrics. 
      Principal component analysis (PCA), least squares support vector machines 
      (LS-SVM), PCA-back propagation neural network (PCA-BPNN), and random forest (RF) 
      models with the first and second derivative and standard normal variate 
      transformation (SNV) pre-treatments were applied to classify rice seeds based on 
      genotype. The results demonstrated that differences between non-transgenic and 
      transgenic rice seeds did exist, and an excellent classification (accuracy was 
      96.67% in the prediction set) could be achieved using the RF model combined with 
      the first derivative pre-treatment. The results indicated that THz spectroscopy 
      imaging together with chemometrics would be a promising technique to identify 
      transgenic rice seeds with high efficiency and without any sample preparation.
CI  - Copyright (c) 2016 Elsevier Ltd. All rights reserved.
FAU - Liu, Wei
AU  - Liu W
AD  - School of Biotechnology and Food Engineering, Hefei University of Technology, 
      Hefei 230009, China; Intelligent Control and Compute Vision Lab, Hefei 
      University, Hefei 230601, China.
FAU - Liu, Changhong
AU  - Liu C
AD  - School of Biotechnology and Food Engineering, Hefei University of Technology, 
      Hefei 230009, China.
FAU - Hu, Xiaohua
AU  - Hu X
AD  - School of Biotechnology and Food Engineering, Hefei University of Technology, 
      Hefei 230009, China.
FAU - Yang, Jianbo
AU  - Yang J
AD  - Rice Research Institute, Anhui Academy of Agricultural Sciences, Hefei 230031, 
      China. Electronic address: yjianbo@263.net.
FAU - Zheng, Lei
AU  - Zheng L
AD  - School of Biotechnology and Food Engineering, Hefei University of Technology, 
      Hefei 230009, China; School of Medical Engineering, Hefei University of 
      Technology, Hefei 230009, China. Electronic address: lzheng@hfut.edu.cn.
LA  - eng
PT  - Journal Article
DEP - 20160426
PL  - England
TA  - Food Chem
JT  - Food chemistry
JID - 7702639
SB  - IM
MH  - Oryza/*chemistry
MH  - Seeds/*chemistry
MH  - Terahertz Spectroscopy/*methods
OTO - NOTNLM
OT  - Chemometrics
OT  - Non-destructive determination
OT  - Rice seed
OT  - Terahertz spectroscopy imaging
OT  - Transgenic
EDAT- 2016/05/24 06:00
MHDA- 2017/02/12 06:00
CRDT- 2016/05/24 06:00
PHST- 2015/12/13 00:00 [received]
PHST- 2016/04/24 00:00 [revised]
PHST- 2016/04/25 00:00 [accepted]
PHST- 2016/05/24 06:00 [entrez]
PHST- 2016/05/24 06:00 [pubmed]
PHST- 2017/02/12 06:00 [medline]
AID - S0308-8146(16)30645-8 [pii]
AID - 10.1016/j.foodchem.2016.04.117 [doi]
PST - ppublish
SO  - Food Chem. 2016 Nov 1;210:415-21. doi: 10.1016/j.foodchem.2016.04.117. Epub 2016 
      Apr 26.