PMID- 19489112
OWN - NLM
STAT- MEDLINE
DCOM- 20090820
LR  - 20221207
IS  - 1862-1783 (Electronic)
IS  - 1673-1581 (Print)
IS  - 1673-1581 (Linking)
VI  - 10
IP  - 6
DP  - 2009 Jun
TI  - Use of near-infrared spectroscopy and least-squares support vector machine to 
      determine quality change of tomato juice.
PG  - 465-71
LID - 10.1631/jzus.B0820299 [doi]
AB  - Near-infrared (NIR) transmittance spectroscopy combined with least-squares 
      support vector machine (LS-SVM) was investigated to study the quality change of 
      tomato juice during the storage. A total of 100 tomato juice samples were used. 
      The spectrum of each tomato juice was collected twice: the first measurement was 
      taken when the tomato juice was fresh and had not undergone any changes, and the 
      second measurement was taken after a month. Principal component analysis (PCA) 
      was used to examine a potential capability of separating juice before and after 
      the storage. The soluble solid content (SSC) and pH of the juice samples were 
      determined. The results show that changes in certain compounds between tomato 
      juice before and after the storage period were obvious. An excellent precision 
      was achieved by LS-SVM model compared with discriminant partial least-squares 
      (DPLS), soft independent modeling of class analogy (SIMCA), and discriminant 
      analysis (DA) models, with 100% of a total accuracy. It can be found that NIR 
      spectroscopy coupled with LS-SVM, DPLS, SIMCA, and DA can be used to control the 
      quality change of tomato juice during the storage.
FAU - Xie, Li-juan
AU  - Xie LJ
AD  - College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou 
      310029, China.
FAU - Ying, Yi-bin
AU  - Ying YB
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - China
TA  - J Zhejiang Univ Sci B
JT  - Journal of Zhejiang University. Science. B
JID - 101236535
SB  - IM
MH  - *Algorithms
MH  - *Artificial Intelligence
MH  - Beverages/*analysis
MH  - Food Analysis/*methods
MH  - Food Contamination/*analysis
MH  - Fruit/*chemistry
MH  - *Least-Squares Analysis
MH  - Solanum lycopersicum/*chemistry
MH  - Pattern Recognition, Automated/*methods
MH  - Spectroscopy, Near-Infrared/*methods
PMC - PMC2689559
EDAT- 2009/06/03 09:00
MHDA- 2009/08/21 09:00
PMCR- 2009/06/01
CRDT- 2009/06/03 09:00
PHST- 2009/06/03 09:00 [entrez]
PHST- 2009/06/03 09:00 [pubmed]
PHST- 2009/08/21 09:00 [medline]
PHST- 2009/06/01 00:00 [pmc-release]
AID - 10.1631/jzus.B0820299 [doi]
PST - ppublish
SO  - J Zhejiang Univ Sci B. 2009 Jun;10(6):465-71. doi: 10.1631/jzus.B0820299.